bump to version v0.0.15

Co-authored-by: 2mal3 <56305732+2mal3@users.noreply.github.com>

.github/workflows/build.yml

@@ -5,6 +5,7 @@ on:
     paths-ignore:
       - "**/*.md"
       - "**/*.yml"
+      - "**/*.sh"
   workflow_dispatch:
 
 jobs:

.github/workflows/release.yml

@@ -17,11 +17,15 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Zip NixOS Config
+        run: zip -rj nixos.zip nixos/
+
       - name: Release
         uses: softprops/action-gh-release@v2
         with:
           name: PLG-MuDiCS ${{ github.ref_name }}
           body_path: CHANGELOG.md
+          files: nixos.zip
 
   build:
     name: Build and Upload Assets

.vscode/extensions.json

@@ -0,0 +1,10 @@
+{
+  "recommendations": [
+    "dbaeumer.vscode-eslint",
+    "golang.go",
+    "esbenp.prettier-vscode",
+    "svelte.svelte-vscode",
+    "a-h.templ",
+    "bradlc.vscode-tailwindcss"
+  ]
+}

CONTRIBUTING.md

@@ -0,0 +1,34 @@
+# Contributing
+
+## Development
+
+### Architecture
+
+The software suite comprises two main components that are designed to work together on the same network.
+The _Display Block_ is responsible for displaying content on a monitor.
+The _Control Block_ controls multiple Display Blocks via a user interface. One Display Block can be controlled by multiple Control Blocks.
+
+- `control/`: Go code for the Control Block.
+  - `frontend/`: The actual frontend written in SvelteKit.
+- `display/`: Go code for the Display Block.
+- `nixos/`: NixOS configuration for a self-updating, ready-to-use Linux system for the Display Block. This is not necessary for using PLG-MuDiCS.
+- `shared/`: Shared code and assets for the Control and Display Block.
+
+### Technologies
+
+- **Go** for the base code in both the Control and Display Block.
+- **SvelteKit** in prerender mode for the frontend of the Control Block.
+- **TailwindCSS** for styling the frontend of the Control Block.
+- **Chromium** browser for handling most media display in the Display Block and serving the frontend of the Control Block.
+- **LibreOffice** for handling more complex documents in the Display Block.
+
+### Requirements
+
+- Go v1.25 or higher
+- Deno v2
+
+### Running
+
+1. open the wanted folder of the block inside a terminal
+2. run `go generate ./..` to generate files required at build time
+3. run `go run *.go` to compile and run the block

LICENSE.txt

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
+
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+ Everyone is permitted to copy and distribute verbatim copies
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+
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+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

README.md

@@ -1,3 +1,13 @@
 # PLG-MuDiCS
 
 ![Lines of Code](https://tokei.rs/b1/github/PLG-Development/PLG-MuDiCS?category=code)
+
+Open source solution for advanced remote control and coordination of one or more presentation displays. Specially optimized for fast operation in highly dynamic multi-display situations.
+
+## Display Requirements
+
+See [packages in the NixOS config](https://github.com/PLG-Development/PLG-MuDiCS/blob/b0a57f9c679e8c483d1a81cb3c749cf8555785f6/nixos/configuration.nix#L86).
+
+## Contributing
+
+See [Contributing.md](/CONTRIBUTING.md)

control/README.md

@@ -1,3 +0,0 @@
-# PLG-MuDiCS Control
-
-## Development

control/frontend/.gitignore

@@ -21,3 +21,6 @@ Thumbs.db
 # Vite
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
+
+# test
+test-results/

control/frontend/deno.json

@@ -0,0 +1,3 @@
+{
+	"minimumDependencyAge": "P7D"
+}

control/frontend/e2e/basic.test.ts

@@ -0,0 +1,39 @@
+import { expect, test } from '@playwright/test';
+
+test('page loads', async ({ page }) => {
+	await page.goto('/');
+	await expect(page.getByText('PLG MuDiCS')).toBeVisible();
+});
+
+test('page loads without problems', async ({ page }) => {
+	await page.goto('/');
+	await expect(page.getByText('PLG MuDiCS')).toBeVisible();
+	await expect(page.getByTestId('notification')).not.toBeVisible();
+});
+
+test('diplay click shows files', async ({ page }) => {
+	await page.goto('/');
+	await page.getByTestId('display').click();
+	await expect(page.getByTestId('inode').first()).toBeVisible();
+});
+
+test('show text', async ({ page }) => {
+	await page.goto('/');
+	await page.getByTestId('display').click();
+
+	const controlButton = page.getByText('Text anzeigen');
+	await expect(controlButton).toBeVisible();
+	await controlButton.click();
+
+	const textPopup = page.getByTestId('text-popup');
+	await expect(textPopup).toBeVisible();
+	const textArea = textPopup.getByRole('textbox');
+	await expect(textArea).toBeVisible();
+	await textArea.fill('Hello, world!');
+
+	const submitButton = textPopup.locator('button').filter({ hasText: 'Text anzeigen' });
+	await submitButton.click();
+	await expect(
+		page.locator('[data-testid="notification"]:not(:has-text("Fehler 500"))')
+	).not.toBeVisible();
+});

control/frontend/package.json

@@ -11,33 +11,45 @@
 		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
 		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
 		"lint": "eslint . && prettier --check .",
-		"format": "prettier --write ."
+		"format": "prettier --write .",
+		"test:e2e": "playwright test",
+		"test": "deno task test:e2e"
 	},
 	"devDependencies": {
-		"@eslint/compat": "^1.2.5",
+		"@eslint/compat": "^1.4.1",
-		"@eslint/js": "^9.18.0",
+		"@eslint/js": "^9.39.2",
-		"@sveltejs/adapter-auto": "^6.0.0",
+		"@playwright/test": "1.56.1",
-		"@sveltejs/adapter-static": "^3.0.9",
+		"@sveltejs/adapter-auto": "^6.1.1",
-		"@sveltejs/kit": "^2.22.0",
+		"@sveltejs/adapter-static": "^3.0.10",
-		"@sveltejs/vite-plugin-svelte": "^6.0.0",
+		"@sveltejs/kit": "^2.49.3",
-		"@tailwindcss/typography": "^0.5.15",
+		"@sveltejs/vite-plugin-svelte": "^6.2.3",
-		"@tailwindcss/vite": "^4.0.0",
+		"@tailwindcss/vite": "^4.1.18",
-		"eslint": "^9.18.0",
+		"@tiptap/extension-placeholder": "^3.15.3",
-		"eslint-config-prettier": "^10.0.1",
+		"eslint": "^9.39.2",
-		"eslint-plugin-svelte": "^3.0.0",
+		"eslint-config-prettier": "^10.1.8",
-		"globals": "^16.0.0",
+		"eslint-plugin-svelte": "^3.14.0",
-		"prettier": "^3.4.2",
+		"globals": "^16.5.0",
-		"prettier-plugin-svelte": "^3.3.3",
+		"prettier": "^3.7.4",
-		"svelte": "^5.0.0",
+		"prettier-plugin-svelte": "^3.4.1",
-		"svelte-check": "^4.0.0",
+		"sass-embedded": "^1.97.2",
-		"svelte-dnd-action": "^0.9.65",
+		"svelte": "^5.46.1",
-		"tailwindcss": "^4.0.0",
+		"svelte-check": "^4.3.5",
-		"typescript": "^5.0.0",
+		"svelte-dnd-action": "^0.9.69",
-		"typescript-eslint": "^8.20.0",
+		"tailwindcss": "^4.1.18",
-		"vite": "^7.0.4"
+		"typescript": "^5.9.3",
+		"typescript-eslint": "^8.52.0",
+		"vite": "^7.3.1"
 	},
 	"dependencies": {
 		"@thisux/sveltednd": "^0.0.20",
-		"lucide-svelte": "^0.545.0"
+		"@tiptap/core": "^3.15.3",
+		"@tiptap/extension-highlight": "^3.15.3",
+		"@tiptap/extension-text-style": "^3.15.3",
+		"@tiptap/extensions": "^3.15.3",
+		"@tiptap/pm": "^3.15.3",
+		"@tiptap/starter-kit": "^3.15.3",
+		"dexie": "^4.2.1",
+		"lucide-svelte": "^0.545.0",
+		"svelte-splitpanes": "^8.0.12"
 	}
 }

control/frontend/playwright.config.ts

@@ -0,0 +1,10 @@
+import { defineConfig } from '@playwright/test';
+
+export default defineConfig({
+	fullyParallel: true,
+	webServer: {
+		command: 'deno task build && deno task preview',
+		port: 4173
+	},
+	testDir: 'e2e'
+});

control/frontend/src/app.css

@@ -1,15 +1,97 @@
 @import 'tailwindcss';
-@plugin '@tailwindcss/typography';
-
 
 /* Adding more color steps */
 @theme {
-    --color-stone-150: oklch(0.9465 0.002 77.571);
+	--color-stone-150: oklch(0.9465 0.002 77.571);
-    --color-stone-250: oklch(0.896 0.004 52.542);
+	--color-stone-250: oklch(0.896 0.004 52.542);
-    --color-stone-350: oklch(0.789 0.0075 56.313);
+	--color-stone-350: oklch(0.789 0.0075 56.313);
-    --color-stone-450: oklch(0.631 0.0115 57.165);
+	--color-stone-450: oklch(0.631 0.0115 57.165);
-    --color-stone-550: oklch(0.4985 0.012 65.855);
+	--color-stone-550: oklch(0.4985 0.012 65.855);
-    --color-stone-650: oklch(0.409 0.0105 70.599);
+	--color-stone-650: oklch(0.409 0.0105 70.599);
-    --color-stone-750: oklch(0.321 0.0085 50.928);
+	--color-stone-750: oklch(0.321 0.0085 50.928);
-    --color-stone-850: oklch(0.242 0.0065 45.171);
+	--color-stone-850: oklch(0.242 0.0065 45.171);
-}
+}
+
+.link {
+	@apply text-blue-300 underline;
+
+	&:hover {
+		@apply text-blue-400;
+	}
+}
+
+.button {
+	&.space {
+		@apply px-4;
+	}
+
+	&.error {
+		@apply text-red-400 hover:text-stone-100;
+
+		&:hover {
+			@apply bg-red-400;
+		}
+	}
+}
+
+html {
+	scrollbar-width: thin;
+	scrollbar-color: var(--color-stone-300) transparent;
+}
+
+/* Splitpanes */
+.splitpanes.mudics-stone-theme {
+	.splitpanes__pane {
+		@apply bg-stone-900;
+	}
+
+	.splitpanes__splitter {
+		@apply bg-transparent hover:bg-stone-700 active:bg-stone-600 transition-colors duration-200 shrink-0 relative box-border rounded mx-5;
+		/* box-sizing: border-box;
+        position: relative;
+        flex-shrink: 0; */
+
+		&:before,
+		&:after {
+			@apply bg-stone-750 transition-colors duration-200 absolute top-[50%] left-[50%] content-[''] rounded;
+		}
+
+		&:hover:before,
+		&:hover:after {
+			@apply bg-stone-400;
+		}
+
+		&:active:before,
+		&:active:after {
+			@apply bg-stone-300;
+		}
+
+		&:first-child {
+			/* cursor: auto; */
+		}
+	}
+}
+
+.mudics-stone-theme {
+	&.splitpanes .splitpanes .splitpanes__splitter {
+		@apply z-10;
+	}
+
+	&.splitpanes--horizontal > .splitpanes__splitter,
+	.splitpanes--horizontal > .splitpanes__splitter {
+		@apply h-2 cursor-row-resize;
+
+		&:before,
+		&:after {
+			@apply h-0.5 w-10 translate-x-[-50%];
+		}
+
+		&:before {
+			@apply mt-[calc(-0.7*var(--spacing))];
+		}
+
+		&:after {
+			@apply mt-[calc(0.1*var(--spacing))];
+		}
+	}
+}

control/frontend/src/components/ControlView.svelte

@@ -1,61 +0,0 @@
-<script lang="ts">
-	import {
-		ArrowBigLeft,
-		ArrowBigRight,
-		ChevronDown,
-		Keyboard,
-		Power,
-		PowerOff,
-		Presentation,
-		SquareTerminal,
-		TextAlignStart,
-		TrafficCone
-	} from 'lucide-svelte';
-	import Button from './Button.svelte';
-</script>
-
-<div class="grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl min-w-0">
-	<div class="text-xl font-bold pl-3 content-center bg-stone-700 rounded-t-2xl truncate min-w-0">
-		Bildschirme steuern
-	</div>
-	<div class="flex flex-col gap-2 p-2 overflow-auto">
-		<div class="flex flex-row justify-between gap-2">
-			<div class="flex flex-col gap-2">
-				<div class="flex flex-row gap-2 w-70 justify-normal">
-					<Button title="Vorherige Folie (Pfeil nach Links)" className="px-7"
-						><ArrowBigLeft /></Button
-					>
-					<Button title="Nächste Folie (Pfeil nach Rechts)" className="px-7"
-						><ArrowBigRight /></Button
-					>
-				</div>
-				<Button className="px-3 flex gap-3 w-70 justify-normal"
-					><TextAlignStart /> Text anzeigen</Button
-				>
-				<Button className="px-3 flex gap-3 w-70 justify-normal"><Presentation />Blackout</Button>
-				<div class="flex flex-row justify-normal">
-					<Button className="rounded-r-none pl-3 flex gap-3 grow w-60 justify-normal"
-						><TrafficCone /> Fallback-Bild anzeigen</Button
-					>
-					<Button className="rounded-l-none flex grow-0 w-10"><ChevronDown /></Button>
-				</div>
-				<Button className="px-3 flex gap-3 w-70 justify-normal"
-					><Keyboard /> Tastatur-Inputs durchgeben</Button
-				>
-			</div>
-			<div class="flex flex-col gap-2 justify-between">
-				<div class="flex flex-col gap-2">
-					<Button className="px-3 flex gap-3 w-full xl:w-70 justify-normal"
-						><Power /> PC hochfahren</Button
-					>
-					<Button className="px-3 flex gap-3 w-full xl:w-70 justify-normal"
-						><PowerOff /> PC herunterfahren</Button
-					>
-				</div>
-				<Button className="px-3 flex gap-3 w-full xl:w-70 justify-normal"
-					><SquareTerminal /> Shell-Befehl ausführen</Button
-				>
-			</div>
-		</div>
-	</div>
-</div>

control/frontend/src/components/DisplayGroupObject.svelte

@@ -1,111 +0,0 @@
-<script lang="ts">
-	import { dragHandleZone, TRIGGERS } from 'svelte-dnd-action';
-	import { dnd_flip_duration_ms, get_selectable_color_classes, is_display_drag, is_group_drag } from '../ts/stores/ui_behavior';
-	import { cubicOut } from 'svelte/easing';
-	import { flip } from 'svelte/animate';
-	import DisplayObject from './DisplayObject.svelte';
-	import {
-		add_empty_display_group,
-		all_displays_of_group_selected,
-		remove_empty_display_groups,
-		select_all_of_group,
-		set_new_display_group_data
-	} from '../ts/stores/displays';
-	import DNDGrip from './DNDGrip.svelte';
-	import { fade } from 'svelte/transition';
-	import type { DisplayGroup, MenuOption } from '../ts/types';
-	import { selected_display_ids } from '../ts/stores/select';
-
-	let { display_group, get_display_menu_options } = $props<{
-		display_group: DisplayGroup;
-		get_display_menu_options: (display_id: string) => MenuOption[]
-	}>();
-
-	let hovering_selectable = $state(false);
-
-	function select_all_of_this_group() {
-		const new_value = !all_displays_of_group_selected(display_group, $selected_display_ids);
-		select_all_of_group(display_group, new_value);
-	}
-
-	function handle_consider(e: CustomEvent) {
-		const { items, info } = e.detail;
-
-		if (items.length !== 1 && info.trigger === TRIGGERS.DRAG_STARTED) {
-      $is_display_drag = true;
-			add_empty_display_group();
-		}
-		set_new_display_group_data(display_group.id, items);
-	}
-
-	function handle_finalize(e: CustomEvent) {
-		remove_empty_display_groups();
-    $is_display_drag = false;
-		set_new_display_group_data(display_group.id, e.detail.items);
-	}
-</script>
-
-<div
-	transition:fade={{ duration: 100 }}
-	class="{get_selectable_color_classes(
-		all_displays_of_group_selected(display_group, $selected_display_ids),
-		{
-			bg: true,
-			hover: hovering_selectable,
-			active: hovering_selectable,
-			text: true
-		},
-		-150,
-		-50
-	)} transition-colors duration-200 rounded-2xl flex flex-row cursor-pointer"
->
-	<div
-		class="flex flex-col min-w-0 pl-2 py-2 gap-2 w-full"
-		use:dragHandleZone={{
-			items: display_group.data,
-			type: 'item',
-			flipDurationMs: dnd_flip_duration_ms,
-			dropTargetStyle: { outline: 'none' },
-		}}
-		onconsider={handle_consider}
-		onfinalize={handle_finalize}
-	>
-		{#each display_group.data as display (display.id)}
-			<!-- Each Group -->
-			<section
-				animate:flip={{ duration: $is_group_drag ? 0 : dnd_flip_duration_ms, easing: cubicOut }}
-				class="outline-none"
-				role="figure"
-			>
-				<DisplayObject {display} {get_display_menu_options} />
-			</section>
-		{/each}
-
-		{#if display_group.data.length === 0}
-			<div class="min-h-10 h-full w-full pl-2 py-2 flex justify-center items-center">
-				Hier in leere neue Gruppe ablegen
-			</div>
-		{/if}
-	</div>
-	<div
-		class="flex items-center justify-center px-2"
-		onclick={(e) => select_all_of_this_group()}
-		role="button"
-		tabindex="0"
-		onkeydown={(e) => {
-			if (e.key === 'Enter' || e.key === ' ') select_all_of_this_group();
-		}}
-		onmouseenter={() => (hovering_selectable = true)}
-		onmouseleave={() => (hovering_selectable = false)}
-	>
-		<DNDGrip
-			bg={get_selectable_color_classes(
-				all_displays_of_group_selected(display_group, $selected_display_ids),
-				{
-					bg: true
-				},
-				-150
-			)}
-		/>
-	</div>
-</div>

control/frontend/src/components/DisplayObject.svelte

@@ -1,131 +0,0 @@
-<script lang="ts">
-	import Button from './Button.svelte';
-	import {
-		current_height,
-		get_selectable_color_classes,
-		pinned_display_id
-	} from '../ts/stores/ui_behavior';
-	import DNDGrip from './DNDGrip.svelte';
-	import { Menu, Pencil, Pin, PinOff, Trash2, VideoOff, X } from 'lucide-svelte';
-	import OnlineState from './OnlineState.svelte';
-	import type { Display, MenuOption } from '../ts/types';
-	import { is_selected, select, selected_display_ids } from '../ts/stores/select';
-
-	let { display, get_display_menu_options } = $props<{
-		display: Display;
-		get_display_menu_options: (display_id: string) => MenuOption[];
-	}>();
-
-	let hovering_unselectable = $state(false);
-
-	function onclick(e: Event) {
-		select(selected_display_ids, display.id);
-		e.stopPropagation();
-	}
-
-	function on_preview_click(e: MouseEvent) {
-		if ($pinned_display_id === display.id) {
-			$pinned_display_id = null;
-		} else {
-			$pinned_display_id = display.id;
-		}
-		e.stopPropagation();
-	}
-</script>
-
-<div
-	role="button"
-	tabindex="0"
-	onkeydown={(e) => {
-		if (e.key === 'Enter' || e.key === ' ') onclick(e);
-	}}
-	{onclick}
-	class="p-1 {get_selectable_color_classes(is_selected(display.id, $selected_display_ids), {
-		bg: true,
-		hover: true,
-		active: !hovering_unselectable,
-		text: true
-	})} rounded-xl flex flex-row justify-between h-{$current_height.display} transition-colors duration-100 gap-2 cursor-pointer w-full text-stone-200"
->
-	<div class="flex flex-row gap-4 min-w-0 flex-1">
-		<!-- Left Preview Screen -->
-		<button
-			class="group relative aspect-16/9 bg-stone-800 h-full rounded-lg overflow-hidden cursor-pointer text-stone-200 transition-colors duration-200"
-			onmouseenter={() => (hovering_unselectable = true)}
-			onmouseleave={() => (hovering_unselectable = false)}
-			onclick={on_preview_click}
-		>
-			<div class="flex h-full w-full items-center justify-center">
-				{#if $pinned_display_id === display.id}
-					<div class="size-[50%]">
-						<Pin class="size-full" />
-					</div>
-				{:else if display.preview_url}
-					<img src={display.preview_url} alt="preview" class="w-full object-cover bg-black" />
-				{:else}
-					<!-- No Signal -->
-					<div class="size-full bg-black flex justify-center items-center">
-						<VideoOff class="size-[30%]" />
-					</div>
-				{/if}
-			</div>
-
-			<!-- Hover Effect -->
-			<span
-				class="pointer-events-none absolute inset-0 {$pinned_display_id === display.id
-					? 'bg-stone-700'
-					: 'bg-stone-700/70'} opacity-0 transition-opacity duration-200 flex items-center justify-center group-hover:opacity-100"
-			>
-				{#if $pinned_display_id === display.id}
-					<PinOff class="size-[50%]" aria-hidden="true" />
-				{:else}
-					<Pin class="size-[50%]" aria-hidden="true" />
-				{/if}
-			</span>
-		</button>
-		<!-- Middle Text Block -->
-		<div
-			class="h-full flex flex-col justify-center gap-1 select-none
-                min-w-0 basis-0 flex-1"
-		>
-			<div class="text-xl font-bold truncate w-full" title={display.name}>
-				{display.name}
-			</div>
-
-			<OnlineState
-				selected={is_selected(display.id, $selected_display_ids)}
-				status={display.status}
-			/>
-		</div>
-	</div>
-	<!-- Right Controls -->
-	<div class="flex flex-row h-full items-center gap-2 pr-3">
-		<DNDGrip
-			bg={get_selectable_color_classes(is_selected(display.id, $selected_display_ids), {
-				bg: true
-			})}
-		/>
-
-		<div
-			role="figure"
-			onmouseenter={() => (hovering_unselectable = true)}
-			onmouseleave={() => (hovering_unselectable = false)}
-		>
-			<Button
-				bg="bg-transparent"
-				hover_bg={get_selectable_color_classes(is_selected(display.id, $selected_display_ids), {
-					bg: true
-				})}
-				active_bg={get_selectable_color_classes(is_selected(display.id, $selected_display_ids), {
-					bg: true
-				})}
-				click_function={(e) => {
-					e.stopPropagation();
-				}}
-				menu_options={get_display_menu_options(display.id)}
-			>
-				<Menu />
-			</Button>
-		</div>
-	</div>
-</div>

control/frontend/src/components/DisplayView.svelte

@@ -1,240 +0,0 @@
-<script lang="ts">
-	import { fade, scale, slide } from 'svelte/transition';
-	import {
-		all_displays_of_group_selected,
-		displays,
-		get_display_by_id,
-		select_all_of_group
-	} from '../ts/stores/displays';
-	import {
-		change_height,
-		current_height,
-		dnd_flip_duration_ms,
-		get_selectable_color_classes,
-		is_display_drag,
-		is_group_drag,
-		next_height_step_size,
-		pinned_display_id
-	} from '../ts/stores/ui_behavior';
-	import { type Display, type DisplayGroup, type MenuOption } from '../ts/types';
-	import Button from './Button.svelte';
-	import OnlineState from './OnlineState.svelte';
-	import { cubicOut } from 'svelte/easing';
-	import { Menu, Minus, Pencil, PinOff, Plus, Settings, Trash2, VideoOff } from 'lucide-svelte';
-	import { selected_display_ids } from '../ts/stores/select';
-	import { dragHandleZone } from 'svelte-dnd-action';
-	import { flip } from 'svelte/animate';
-	import DisplayGroupObject from './DisplayGroupObject.svelte';
-
-	let { handle_display_deletion, handle_display_editing } = $props<{
-		handle_display_deletion: (display_id: string) => void;
-		handle_display_editing: (display_id: string) => void;
-	}>();
-
-	let displays_scroll_box: HTMLElement;
-	let pinned_display: Display | null = $derived(
-		get_display_by_id($pinned_display_id || '', $displays)
-	);
-
-
-	function get_display_menu_options(display_id: string): MenuOption[] {
-		return [
-		{
-			icon: Pencil,
-			name: 'Bildschirm bearbeiten',
-			on_select: () => {handle_display_editing(display_id)},
-		},
-		{
-			icon: Trash2,
-			name: 'Bildschirm löschen',
-			class: 'text-red-400 hover:text-stone-200 hover:!bg-red-400 active:!bg-red-500',
-			on_select: () => {handle_display_deletion(display_id)},
-		}
-	];
-	}
-
-	function select_all(current_displays: DisplayGroup[], current_selected_display_ids: string[]) {
-		const new_value = !all_selected(current_displays, current_selected_display_ids);
-		for (const display_group of current_displays) {
-			select_all_of_group(display_group, new_value);
-		}
-	}
-
-	function all_selected(current_displays: DisplayGroup[], current_selected_display_ids: string[]) {
-		for (const display_group of current_displays) {
-			if (!all_displays_of_group_selected(display_group, current_selected_display_ids)) {
-				return false;
-			}
-		}
-		return true;
-	}
-
-	function on_wheel(e: WheelEvent) {
-		if (!$is_group_drag && !$is_display_drag) return;
-		if (!displays_scroll_box) return;
-
-		// apply custom scroll feature
-		e.preventDefault();
-		(displays_scroll_box as HTMLElement).scrollBy?.({
-			top: e.deltaY,
-			behavior: 'auto'
-		});
-	}
-</script>
-
-<svelte:window on:wheel={on_wheel} />
-
-<div class="h-[calc(100dvh-3rem-(6*var(--spacing)))] flex flex-col gap-2">
-	{#if $pinned_display_id}
-		<!-- Pinned Item -->
-		<div in:fade={{ duration: 140 }} out:fade={{ duration: 120 }}>
-			<div
-				class="grid grid-rows-[2.5rem_auto] will-change-[height,opacity] overflow-hidden rounded-2xl"
-				transition:slide={{ duration: 260, easing: cubicOut }}
-			>
-				<div class="bg-stone-700 flex justify-between w-full p-1 min-w-0 basis-0 flex-1">
-					<span
-						class="text-xl font-bold pl-2 content-center truncate min-w-0"
-						title={pinned_display?.name}
-					>
-						{pinned_display?.name}
-					</span>
-					<div class="flex flex-row gap-1">
-						<OnlineState
-							selected={false}
-							status={pinned_display?.status ?? ''}
-							className="flex items-center px-2"
-						/>
-						<Button
-							className="aspect-square !p-1"
-							bg="bg-stone-600"
-							click_function={(e) => {
-								e.stopPropagation();
-							}}
-							menu_options={get_display_menu_options($pinned_display_id)}
-						>
-							<Menu />
-						</Button>
-
-						<Button
-							title="Bildschirm nicht mehr anpinnen"
-							className="aspect-square !p-1"
-							bg="bg-stone-600"
-							click_function={() => {
-								$pinned_display_id = null;
-							}}
-						>
-							<PinOff />
-						</Button>
-					</div>
-				</div>
-
-				<div class="w-full h-[30dvh] bg-stone-800 flex justify-center items-center">
-					{#if pinned_display?.preview_url}
-						<img
-							src={pinned_display.preview_url}
-							alt="preview"
-							class="max-h-full max-w-full object-cover bg-black"
-						/>
-					{:else}
-						<div class="size-full bg-black flex justify-center items-center">
-							<VideoOff class="size-[20%]" />
-						</div>
-					{/if}
-				</div>
-			</div>
-		</div>
-	{/if}
-
-	<div class="min-h-0 h-full grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl overflow-hidden">
-		<!-- Normal Heading Left -->
-		<div class="bg-stone-700 flex justify-between w-full p-1 gap-2 min-w-0">
-			<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
-				Verbundene Bildschirme
-			</span>
-			<div class="flex flex-row gap-1">
-				<button
-					class="gap-2 min-w-40 px-4 rounded-xl cursor-pointer duration-200 transition-colors {get_selectable_color_classes(
-						all_selected($displays, $selected_display_ids),
-						{
-							bg: true,
-							hover: true,
-							active: true,
-							text: true
-						}
-					)}"
-					onclick={() => select_all($displays, $selected_display_ids)}
-				>
-					<span
-						>{all_selected($displays, $selected_display_ids)
-							? 'Alle abwählen'
-							: 'Alle auswählen'}</span
-					>
-				</button>
-				<div class="flex flex-row">
-					<Button
-						title="Bildschirme größer darstellen"
-						className="aspect-square !p-1 rounded-r-none"
-						bg="bg-stone-600"
-						disabled={!Boolean(next_height_step_size('display', $current_height, 1))}
-						click_function={() => {
-							change_height('display', 1);
-						}}
-					>
-						<Plus />
-					</Button>
-					<Button
-						title="Bildschirme kleiner darstellen"
-						className="aspect-square !p-1 rounded-l-none"
-						bg="bg-stone-600"
-						disabled={!Boolean(next_height_step_size('display', $current_height, -1))}
-						click_function={() => {
-							change_height('display', -1);
-						}}
-					>
-						<Minus />
-					</Button>
-				</div>
-			</div>
-		</div>
-		<div class="min-h-0 overflow-y-auto" bind:this={displays_scroll_box}>
-			<div
-				class="min-h-full p-2 flex flex-col gap-4"
-				use:dragHandleZone={{
-					items: $displays,
-					type: 'group',
-					flipDurationMs: dnd_flip_duration_ms,
-					dropFromOthersDisabled: true,
-					dropTargetStyle: { outline: 'none' }
-				}}
-				onconsider={(e: CustomEvent) => {
-					$is_group_drag = true;
-					$displays = e.detail.items;
-				}}
-				onfinalize={(e: CustomEvent) => {
-					$displays = e.detail.items;
-					$is_group_drag = false;
-				}}
-			>
-				{#if $displays.length === 1 && $displays[0].data.length === 0}
-					<div class="text-stone-500 px-10 py-6 leading-relaxed text-center">
-						Es wurden noch keine Bildschirme hinzugefügt. Klicke oben rechts auf <Settings
-							class="inline pb-1"
-						/> und "Neuen Bildschirm hinzufügen".
-					</div>
-				{:else}
-					{#each $displays as display_group (display_group.id)}
-						<!-- Each Group -->
-						<section
-							out:scale={{ duration: dnd_flip_duration_ms, easing: cubicOut }}
-							animate:flip={{ duration: dnd_flip_duration_ms, easing: cubicOut }}
-							class="outline-none"
-						>
-							<DisplayGroupObject {display_group} {get_display_menu_options} />
-						</section>
-					{/each}
-				{/if}
-			</div>
-		</div>
-	</div>
-</div>

control/frontend/src/components/FileView.svelte

@@ -1,106 +0,0 @@
-<script lang="ts">
-	import { ClipboardPaste, Download, FolderPlus, Info, Minus, Pen, Plus, RefreshCcw, Scissors, Trash2, Upload } from "lucide-svelte";
-	import { change_height, current_height, next_height_step_size } from "../ts/stores/ui_behavior";
-	import Button from "./Button.svelte";
-	import PathBar from "./PathBar.svelte";
-	import { selected_display_ids, selected_file_ids } from "../ts/stores/select";
-	import { all_files, current_file_path, get_current_folder_elements } from "../ts/stores/files";
-	import { slide } from "svelte/transition";
-	import FolderElementObject from "./FolderElementObject.svelte";
-	import PopUp from "./PopUp.svelte";
-
-</script>
-
-<div class="bg-stone-800 h-full rounded-2xl grid grid-rows-[2.5rem_1fr] min-h-0">
-	<div class="bg-stone-700 flex justify-between w-full p-1 rounded-t-2xl min-w-0 gap-2">
-		<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
-			Dateien anzeigen und verwalten
-		</span>
-		<div class="flex flex-ro">
-			<Button
-				title="Dateien größer darstellen"
-				className="aspect-square !p-1 rounded-r-none"
-				bg="bg-stone-600"
-				disabled={!Boolean(next_height_step_size('file', $current_height, 1))}
-				click_function={() => {
-					change_height('file', 1);
-				}}
-			>
-				<Plus />
-			</Button>
-			<Button
-				title="Dateien kleiner darstellen"
-				className="aspect-square !p-1 rounded-l-none"
-				bg="bg-stone-600"
-				disabled={!Boolean(next_height_step_size('file', $current_height, -1))}
-				click_function={() => {
-					change_height('file', -1);
-				}}
-			>
-				<Minus />
-			</Button>
-		</div>
-	</div>
-	<div class="flex flex-col gap-2 p-2 overflow-hidden relative rounded-b-2xl">
-		<div class="flex flex-col gap-2 p-2 bg-stone-750 rounded-xl">
-			<PathBar />
-			<div class="flex flex-row justify-between gap-6 overflow-x-auto">
-				<div class="flex flex-row gap-2 shrink-0">
-					<Button
-						title="Neuen Ordner erstellen (Neuen Ordner mit ausgewählten Objekten erstellen)"
-						className="px-3 flex"><FolderPlus /></Button
-					>
-					<div class="border border-stone-700 my-1"></div>
-					<Button title="Datei(en) hochladen" className="px-3 flex"><Upload /></Button>
-					<Button
-						title="Ausgewählte Datei(en) herunterladen"
-						className="px-3 flex"
-						disabled={$selected_file_ids.length === 0}><Download /></Button
-					>
-					<div class="border border-stone-700 my-1"></div>
-					<Button
-						title="Aktuellen Ordner / Ausgewählte Datei(en) zwischen Bildschirmen synchronisieren"
-						className="px-3 flex gap-3"
-						><RefreshCcw />
-						<span class="hidden 2xl:flex">Synchronisieren</span>
-					</Button>
-				</div>
-				<div class="flex flex-row gap-2">
-					<Button
-						title="Ausgewählte Datei(en) ausschneiden"
-						className="px-3 flex"
-						disabled={$selected_file_ids.length === 0}><Scissors /></Button
-					>
-					<Button title="Ausgewählte Datei(en) einfügen" className="px-3 flex"
-						><ClipboardPaste /></Button
-					>
-					<div class="border border-stone-700 my-1"></div>
-					<Button
-						title="Ausgewählte Datei umbenennen"
-						className="px-3 flex"
-						disabled={$selected_file_ids.length !== 1}><Pen /></Button
-					>
-					<Button
-						title="Ausgewählte Datei(en) löschen"
-						hover_bg="bg-red-400"
-						active_bg="bg-red-500"
-						className="px-3 flex"
-						disabled={$selected_file_ids.length === 0}><Trash2 /></Button
-					>
-				</div>
-			</div>
-		</div>
-		<div class="min-h-0 h-full overflow-y-auto bg-stone-750 rounded-xl">
-			<div class="flex flex-col gap-2 p-2 min-h-0">
-				{#each get_current_folder_elements($all_files, $current_file_path, $selected_display_ids) as folder_element (folder_element.id)}
-					<section in:slide={{ duration: 100 }} class="outline-none">
-						<FolderElementObject file={folder_element} />
-					</section>
-				{/each}
-			</div>
-		</div>
-		<!-- <PopUp title="Test" title_icon={Info}>
-			<div>Hier kann beliebiges HTML übergeben werden!</div>
-		</PopUp> -->
-	</div>
-</div>

control/frontend/src/components/FolderElementObject.svelte

@@ -1,250 +0,0 @@
-<script lang="ts">
-	import {
-		ArrowRight,
-		Ban,
-		FileIcon,
-		Folder,
-		Play,
-		RefreshCcwDot,
-		TriangleAlert
-	} from 'lucide-svelte';
-	import {
-		current_height,
-		get_selectable_color_classes,
-		get_shifted_color
-	} from '../ts/stores/ui_behavior';
-	import Button from './Button.svelte';
-	import { supported_file_types, type FolderElement, type SupportedFileType } from '../ts/types';
-	import {
-		is_selected,
-		select,
-		selected_display_ids,
-		selected_file_ids
-	} from '../ts/stores/select';
-	import {
-		all_files,
-		change_file_path,
-		current_file_path,
-		get_display_ids_where_file_is_missing
-	} from '../ts/stores/files';
-	import RefreshPlay from './RefreshPlay.svelte';
-	import { get_file_size_display_string } from '../ts/utils';
-	import { open_file } from '../ts/api_handler';
-	import { displays, get_display_by_id, update_screenshot } from '../ts/stores/displays';
-
-	let { file } = $props<{ file: FolderElement }>();
-
-	const is_folder = file.type === 'inode/directory';
-
-	function get_file_type(file: FolderElement): SupportedFileType | null {
-		for (const key of Object.keys(supported_file_types)) {
-			if (file.type === supported_file_types[key].mime_type) {
-				return supported_file_types[key];
-			}
-		}
-		// Fallback:
-		const extension = file.name.split('.').pop();
-		if (extension) {
-			if (Object.keys(supported_file_types).includes('.' + extension)) {
-				return supported_file_types['.' + extension];
-			}
-		}
-		return null;
-	}
-
-	function get_created_string(date_object: Date, full_string = false) {
-		if (full_string) {
-			return (
-				get_formated_date_string(date_object, true) + ' ' + get_formated_time_string(date_object)
-			);
-		} else if (date_object.toDateString() === new Date().toDateString()) {
-			return get_formated_time_string(date_object);
-		} else {
-			return get_formated_date_string(date_object);
-		}
-	}
-
-	function get_formated_time_string(date_object: Date) {
-		return `${date_object.getHours().toString().padStart(2, '0')}:${date_object.getMinutes().toString().padStart(2, '0')}`;
-	}
-
-	function get_formated_date_string(date_object: Date, full_year = false) {
-		return `${date_object.getDate().toString().padStart(2, '0')}.${(date_object.getMonth() + 1).toString().padStart(2, '0')}.${date_object
-			.getFullYear()
-			.toString()
-			.slice(full_year ? 0 : 2)}`;
-	}
-
-	function get_grayed_out_text_color_strings(is_selected: boolean): string {
-		const color = is_selected ? 'text-stone-600' : 'text-stone-400';
-		const factor = is_selected ? -1 : 1;
-		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
-	}
-
-	function get_grayed_out_border_color_strings(is_selected: boolean): string {
-		const color = is_selected ? 'border-stone-450' : 'border-stone-550';
-		const factor = is_selected ? 1 : 1;
-		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
-	}
-
-	function onclick(e: Event) {
-		select(selected_file_ids, file.id);
-		e.stopPropagation();
-	}
-
-	async function open() {
-		if (is_folder) {
-			change_file_path($current_file_path + file.name + '/');
-		} else {
-			const path_to_file = $current_file_path + file.name;
-			for (const display_id of $selected_display_ids) {
-				const ip = get_display_by_id(display_id, $displays)?.ip ?? null;
-				if (ip) {
-					await open_file(ip, path_to_file);
-					await update_screenshot(display_id);
-				}
-			}
-		}
-	}
-</script>
-
-<div class="flex flex-row h-{$current_height.file} w-full">
-	<div class="h-{$current_height.file} aspect-square max-w-15 flex">
-		<Button
-			disabled={!is_folder && get_file_type(file) === null}
-			title={!is_folder && get_file_type(file) === null ? 'Dateityp nicht unterstützt' : ''}
-			className="flex rounded-l-lg rounded-r-none {is_folder
-				? 'text-stone-450'
-				: 'text-stone-800'} w-full"
-			div_class="w-full"
-			bg={get_selectable_color_classes(
-				!is_folder && get_file_type(file) !== null,
-				{
-					bg: true
-				},
-				-50
-			)}
-			hover_bg={get_selectable_color_classes(
-				!is_folder,
-				{
-					bg: true
-				},
-				50
-			)}
-			active_bg={get_selectable_color_classes(
-				!is_folder,
-				{
-					bg: true
-				},
-				100
-			)}
-			click_function={(e) => {
-				open();
-				e.stopPropagation();
-			}}
-		>
-			{#if is_folder}
-				<ArrowRight class="size-full" strokeWidth="3" />
-			{:else if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[0].length !== 0}
-				<RefreshPlay className="size-full" />
-			{:else if get_file_type(file) !== null}
-				<Play class="size-full" strokeWidth="3" />
-			{:else}
-				<Ban class="size-full" strokeWidth="3" />
-			{/if}
-		</Button>
-	</div>
-	<div
-		role="button"
-		tabindex="0"
-		onkeydown={(e) => {
-			if (e.key === 'Enter' || e.key === ' ') onclick(e);
-		}}
-		{onclick}
-		class="{get_selectable_color_classes(is_selected(file.id, $selected_file_ids), {
-			bg: true,
-			hover: true,
-			active: true,
-			text: true
-		})} rounded-r-lg transition-colors duration-200 gap-4 flex flex-row justify-between cursor-pointer group w-full min-w-0"
-	>
-		<div class="flex flex-row gap-2 min-w-0 w-full">
-			<div class="aspect-square rounded-md flex justify-center items-center p-2">
-				{#if is_folder}
-					<Folder class="size-full" />
-				{:else if file.thumbnail}
-					<div></div>
-				{:else if get_file_type(file)?.icon}
-					{@const Icon = get_file_type(file)?.icon}
-					<Icon class="size-full" />
-				{:else}
-					<FileIcon />
-				{/if}
-			</div>
-			<div class="content-center truncate select-none w-full" title={file.name}>
-				{file.name.includes('.') ? file.name.slice(0, file.name.lastIndexOf('.')) : file.name}
-			</div>
-		</div>
-		<div
-			class=" p-1 flex flex-row items-center gap-1 pr-1 {get_grayed_out_text_color_strings(
-				is_selected(file.id, $selected_file_ids)
-			)} duration-200 transition-colors"
-		>
-			{#if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[1].length !== 0}
-				<Button
-					className="h-8 aspect-square transition-colors duration-200 !p-1.5 text-stone-100"
-					bg="bg-red-500"
-					click_function={(e) => {
-						e.stopPropagation();
-					}}
-				>
-					<TriangleAlert class="size-full" />
-				</Button>
-			{:else if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[0].length !== 0}
-				<Button
-					className="h-8 aspect-square transition-colors duration-200 !p-1.5"
-					bg="bg-transparent"
-					hover_bg={get_selectable_color_classes(false, {
-						bg: true
-					})}
-					active_bg={get_selectable_color_classes(false, {
-						bg: true
-					})}
-					click_function={(e) => {
-						e.stopPropagation();
-					}}
-				>
-					<RefreshCcwDot class="size-full" />
-				</Button>
-			{/if}
-			<div
-				class="w-14 content-center text-center select-none text-xs whitespace-nowrap"
-				title={get_created_string(file.date_created, true)}
-			>
-				{get_created_string(file.date_created)}
-			</div>
-			<div
-				class="h-[70%] border {get_grayed_out_border_color_strings(
-					is_selected(file.id, $selected_file_ids)
-				)} duration-200 transition-colors my-1"
-			></div>
-			<div
-				class="w-12 content-center text-center select-none text-xs whitespace-nowrap truncate"
-				title={file.type}
-			>
-				{is_folder ? 'Ordner' : (get_file_type(file)?.display_name ?? '?')}
-			</div>
-			<div
-				class="h-[70%] border {get_grayed_out_border_color_strings(
-					is_selected(file.id, $selected_file_ids)
-				)} duration-200 transition-colors"
-			></div>
-			<div
-				class="w-12 content-center text-center select-none text-xs whitespace-nowrap"
-				title={get_file_size_display_string(file.size, 3)}
-			>
-				{get_file_size_display_string(file.size)}
-			</div>
-		</div>
-	</div>
-</div>

control/frontend/src/components/Notification.svelte

@@ -1,48 +0,0 @@
-<script lang="ts">
-    import { fade } from "svelte/transition";
-    import Button from "./Button.svelte";
-	import { X } from "lucide-svelte";
-	import { notifications } from "../ts/stores/notification";
-	import { get_shifted_color } from "../ts/stores/ui_behavior";
-</script>
-
-<div class="fixed flex flex-col gap-2 {true ? "top-[41%]": "top-2"} right-2 left-2 md:top-auto md:left-auto md:bottom-2 md:w-100 z-50">
-    {#each $notifications as n (n.id)}
-        <div
-            transition:fade={{ duration: 200 }}
-            class="p-2 pl-4 pb-3 rounded-lg shadow-xl/30 text-white flex flex-col gap-2 overflow-hidden relative border-1 border-black/20 {n.className}"
-            class:bg-red-900={n.type === "error"}
-            class:bg-green-900={n.type === "success"}
-            class:bg-sky-900={n.type === "info"}
-            style="--dur: {n.duration}ms"
-        >
-            <div class="flex flex-row justify-between">
-                <span class="text-xl font-bold flex items-center">{n.title}</span>
-                <Button click_function={() => notifications.remove(n.id)} className="p-2" bg="bg-stone-900/50" hover_bg="bg-stone-600/70" active_bg="bg-stone-500/80"><X/></Button>
-            </div>
-
-            <span class="whitespace-break-spaces">{n.message}</span>
-
-            <div class="absolute inset-x-0 bottom-0 h-1 bg-white/25">
-                <div
-                    class="block h-full w-full bg-white/80 origin-left animate-progress-bar"
-                ></div>
-            </div>
-        </div>
-    {/each}
-</div>
-
-<style>
-    @keyframes progress {
-        from {
-            transform: scaleX(0);
-        }
-        to {
-            transform: scaleX(1);
-        }
-    }
-    .animate-progress-bar {
-        animation: progress var(--dur) linear forwards;
-        transform-origin: left;
-    }
-</style>

control/frontend/src/components/PopUp.svelte

@@ -1,69 +0,0 @@
-<script lang="ts">
-	import { X } from 'lucide-svelte';
-	import { onDestroy, onMount } from 'svelte';
-	import Button from './Button.svelte';
-	import type { PopupContent } from '../ts/types';
-	import { fade } from 'svelte/transition';
-
-	let { content, close_function } = $props<{
-		content: PopupContent;
-		close_function: () => void;
-	}>();
-
-	function try_to_close() {
-		if (!content.closable || !content.open) return;
-		close_function();
-	}
-
-	function handleKeydown(e: KeyboardEvent) {
-		if (e.key === 'Escape') {
-			try_to_close();
-		}
-	}
-
-	onMount(() => {
-		window.addEventListener('keydown', handleKeydown);
-		return () => window.removeEventListener('keydown', handleKeydown);
-	});
-</script>
-
-{#if content.open}
-	<!-- svelte-ignore a11y_no_static_element_interactions -->
-	<!-- svelte-ignore a11y_click_events_have_key_events -->
-	<div
-		class="absolute inset-0 backdrop-blur bg-white/10 flex justify-center items-center"
-		onclick={try_to_close}
-		transition:fade={{ duration: 100 }}
-	>
-		<!-- svelte-ignore a11y_no_static_element_interactions -->
-		<!-- svelte-ignore a11y_click_events_have_key_events -->
-		<div
-			class="bg-stone-800 rounded-2xl min-w-[30%] max-w-[80%] max-h-[80%] flex flex-col shadow-2xl/60 overflow-hidden"
-			onclick={(e) => e.stopPropagation()}
-		>
-			<div
-				class="text-2xl font-bold bg-stone-700 p-1.5 flex flex-row justify-between gap-6 w-full"
-			>
-				<div class="flex flex-row flex-1 gap-4 pl-2 py-1 items-center grow whitespace-nowrap min-w-0 flex-shrink-0 {content.title_class ?? ''}">
-					{#if content.title_icon}
-						{@const Icon = content.title_icon}
-						<Icon strokeWidth="2.8" class="flex-shrink-0" />
-					{/if}
-					<div class="flex-shrink-0">
-						{content.title}
-					</div>
-				</div>
-				<div class="flex aspect-square flex-shrink-0">
-					{#if content.closable}
-						<Button className="aspect-square !p-1.5" click_function={try_to_close}>
-							<X />
-						</Button>
-					{/if}
-				</div>
-			</div>
-			<div class="p-2 min-h-0 overflow-auto flex flex-col gap-2">
-				{@render content.snippet(content.snippet_arg)}
-			</div>
-		</div>
-	</div>
-{/if}

control/frontend/src/components/TextInput.svelte

@@ -1,70 +0,0 @@
-<script lang="ts">
-	import { fade } from 'svelte/transition';
-	import { get_shifted_color } from '../ts/stores/ui_behavior';
-	import { onMount } from 'svelte';
-
-	let {
-		current_value = $bindable(),
-		current_valid = $bindable(),
-		className = '',
-		bg = 'bg-stone-750',
-		title,
-		placeholder = '',
-		is_valid_function = null
-	} = $props<{
-		current_value: string;
-		current_valid: boolean;
-		className?: string;
-		bg?: string;
-		title: string;
-		placeholder?: string;
-		is_valid_function?: ((input: string) => [boolean, string]) | null;
-	}>();
-
-	let focus_bg = get_shifted_color(bg, 100);
-	let focussed = $state(false);
-	let current_info = $state('');
-
-	function validate_input() {
-		if (!is_valid_function) return;
-		[current_valid, current_info] = is_valid_function(current_value.trim());
-	}
-
-	function get_highlighting_string(): string {
-		if (!is_valid_function) return '';
-		if (current_valid) {
-			return 'focus:inset-ring-2 focus:inset-ring-green-400';
-		} else {
-			return 'inset-ring-2 inset-ring-red-400';
-		}
-	}
-	onMount(() => {
-		validate_input();
-	});
-</script>
-
-<div class="flex flex-col {className}">
-	<div class="flex flex-row justify-between text-sm px-1">
-		<div class="text-stone-400">
-			{title}:
-		</div>
-		{#if is_valid_function && focussed}
-			<div class={current_valid ? "text-green-400" : "text-red-400"} transition:fade={{ duration: 100 }}>
-				{current_info}
-			</div>
-		{/if}
-	</div>
-	<input
-		bind:value={current_value}
-		type="text"
-		oninput={validate_input}
-		onfocus={() => {
-			focussed = true;
-		}}
-		onfocusout={() => {
-			focussed = false;
-		}}
-		class="{bg} focus:{focus_bg} outline-none py-2 px-3 rounded-xl transition-all duration-100 {get_highlighting_string()}"
-		{placeholder}
-	/>
-</div>

control/frontend/src/lib/components/Button.svelte

@@ -1,7 +1,6 @@
 <script lang="ts">
-	import { flip } from 'svelte/animate';
+	import { get_shifted_color } from '$lib/ts/stores/ui_behavior';
-	import { get_shifted_color } from '../ts/stores/ui_behavior';
+	import type { MenuOption } from '$lib/ts/types';
-	import type { MenuOption } from '../ts/types';
 	import { fade } from 'svelte/transition';
 
 	let {
@@ -11,12 +10,12 @@
 		active_bg = get_shifted_color(bg, 200),
 		disabled = false,
 		title = '',
-		click_function = (e: MouseEvent) => {},
+		click_function = () => {},
-		menu_options = null,
+		menu_options = [],
 		menu_class = 'right-0',
 		div_class = '',
 		children
-	} = $props<{
+	}: {
 		className?: string;
 		bg?: string;
 		hover_bg?: string;
@@ -24,19 +23,19 @@
 		disabled?: boolean;
 		title?: string;
 		click_function?: (e: MouseEvent) => void;
-		menu_options?: MenuOption[] | null;
+		menu_options?: MenuOption[];
 		menu_class?: string;
-		div_class?: string,
+		div_class?: string;
 		children?: any;
-	}>();
+	} = $props();
 
 	let menu_shown = $state(false);
 	let button_element: HTMLButtonElement;
-	let menu_element: HTMLDivElement;
+	let menu_element: HTMLDivElement | null = $state(null);
 	let position_bottom = $state(true);
 
 	function onclick(e: MouseEvent) {
-		if (menu_options !== null) {
+		if (menu_options.length !== 0) {
 			if (menu_shown) {
 				close_menu();
 			} else {
@@ -47,7 +46,7 @@
 	}
 
 	function getPolygon(): [number, number][] | null {
-		if (!button_element || !button_element) return null;
+		if (!button_element || !menu_element) return null;
 		const b = button_element.getBoundingClientRect();
 		const m = menu_element.getBoundingClientRect();
 
@@ -154,7 +153,7 @@
 			transition:fade={{ duration: 50 }}
 			class="absolute {position_bottom
 				? 'top-full'
-				: 'bottom-full'} {menu_class} z-100 my-1.5 min-w-64 rounded-xl backdrop-blur bg-black/20 border border-stone-400/10 shadow-xl/20 p-2 flex flex-col gap-2 text-stone-200 cursor-auto"
+				: 'bottom-full'} {menu_class} z-100 my-1.5 min-w-64 rounded-xl backdrop-blur bg-stone-800/45 border border-stone-400/10 shadow-xl/20 p-2 flex flex-col gap-2 text-stone-200 cursor-auto"
 			onclick={(e) => {
 				e.stopPropagation();
 			}}
@@ -166,8 +165,8 @@
 						? 'text-stone-500 cursor-not-allowed'
 						: 'hover:bg-white/35 active:bg-white/60 cursor-pointer ' +
 							option.class} rounded-lg p-2 transition-colors duration-200 select-none flex flex-row gap-2 items-center"
-					onclick={(e) => {
+					onclick={async (e) => {
-						if (option.on_select) option.on_select();
+						if (option.on_select) await option.on_select();
 						close_menu();
 					}}
 				>

control/frontend/src/lib/components/DNDGrip.svelte

@@ -2,10 +2,10 @@
 	import { GripHorizontal } from 'lucide-svelte';
 	import { dragHandle } from 'svelte-dnd-action';
 
-	let { bg, className = "" } = $props<{
+	let { bg, className = "" }: {
 		bg: string;
-        className?: string;
+		className?: string;
-	}>();
+	}  = $props();
 </script>
 
 <div

control/frontend/src/lib/components/DisplayGroupObject.svelte

@@ -0,0 +1,133 @@
+<script lang="ts">
+	import { dragHandleZone, TRIGGERS } from 'svelte-dnd-action';
+	import {
+		dnd_flip_duration_ms,
+		get_selectable_color_classes,
+		is_display_drag,
+		is_group_drag
+	} from '$lib/ts/stores/ui_behavior';
+	import { cubicOut } from 'svelte/easing';
+	import { flip } from 'svelte/animate';
+	import DisplayObject from './DisplayObject.svelte';
+	import {
+		all_displays_of_group_selected,
+		set_select_for_group,
+		update_db_displays,
+		local_displays,
+		set_new_display_order
+	} from '$lib/ts/stores/displays';
+	import DNDGrip from '$lib/components/DNDGrip.svelte';
+	import { fade } from 'svelte/transition';
+	import type { Display, DisplayIdGroup, MenuOption } from '$lib/ts/types';
+	import { selected_display_ids } from '$lib/ts/stores/select';
+	import { liveQuery, type Observable } from 'dexie';
+	import { onMount } from 'svelte';
+	import { get_uuid } from '$lib/ts/utils';
+
+	let {
+		display_id_group,
+		get_display_menu_options,
+		close_pinned_display
+	}: {
+		display_id_group: DisplayIdGroup;
+		get_display_menu_options: (display_id: string) => MenuOption[];
+		close_pinned_display: () => void;
+	} = $props();
+
+	let all_selected: Observable<boolean> | undefined = $state();
+	$effect(() => {
+		const sdi = $selected_display_ids;
+		all_selected = liveQuery(() => all_displays_of_group_selected(display_id_group.id, sdi));
+	});
+
+	let hovering_selectable = $state(false);
+
+	async function select_all_of_this_group() {
+		const new_value = !($all_selected || false);
+		await set_select_for_group(display_id_group.id, new_value);
+	}
+
+	async function handle_consider(e: CustomEvent) {
+		const { items, info } = e.detail;
+
+		if (items.length !== 1 && info.trigger === TRIGGERS.DRAG_STARTED) {
+			$is_display_drag = true;
+			// add empty display group if its not just one group
+			if (!($local_displays.length === 1 && $local_displays[0].displays.length === 1)) {
+				$local_displays.push({
+					id: get_uuid(),
+					displays: []
+				});
+			}
+		}
+		set_new_display_order(display_id_group.id, items);
+	}
+
+	async function handle_finalize(e: CustomEvent) {
+		set_new_display_order(display_id_group.id, e.detail.items);
+		await update_db_displays();
+		$is_display_drag = false;
+	}
+</script>
+
+<div
+	transition:fade={{ duration: 100 }}
+	class="{get_selectable_color_classes(
+		$all_selected || false,
+		{
+			bg: true,
+			hover: hovering_selectable,
+			active: hovering_selectable,
+			text: true
+		},
+		-150,
+		-50
+	)} transition-colors duration-200 rounded-2xl flex flex-row cursor-pointer"
+>
+	<div
+		class="flex flex-col min-w-0 pl-2 py-2 gap-2 w-full"
+		use:dragHandleZone={{
+			items: display_id_group.displays,
+			type: 'item',
+			flipDurationMs: dnd_flip_duration_ms,
+			dropTargetStyle: { outline: 'none' }
+		}}
+		onconsider={handle_consider}
+		onfinalize={handle_finalize}
+	>
+		{#each display_id_group.displays as display_id_object (display_id_object.id)}
+			<!-- Each Group -->
+			<section class="outline-none" role="figure">
+				<!-- animate:flip={{ duration: $is_group_drag ? 0 : dnd_flip_duration_ms, easing: cubicOut }} -->
+				<DisplayObject {display_id_object} {get_display_menu_options} {close_pinned_display} />
+			</section>
+		{/each}
+
+		{#if display_id_group.displays.length === 0}
+			<div class="min-h-10 h-full w-full pl-2 py-2 flex justify-center items-center">
+				Hier in leere neue Gruppe ablegen
+			</div>
+		{/if}
+	</div>
+	<div
+		class="flex items-center justify-center px-2"
+		onclick={select_all_of_this_group}
+		role="button"
+		tabindex="0"
+		onkeydown={async (e) => {
+			if (e.key === 'Enter' || e.key === ' ') await select_all_of_this_group();
+		}}
+		onmouseenter={() => (hovering_selectable = true)}
+		onmouseleave={() => (hovering_selectable = false)}
+	>
+		<DNDGrip
+			bg={get_selectable_color_classes(
+				$all_selected || false,
+				{
+					bg: true
+				},
+				-150
+			)}
+		/>
+	</div>
+</div>

control/frontend/src/lib/components/DisplayObject.svelte

@@ -0,0 +1,145 @@
+<script lang="ts">
+	import Button from '$lib/components/Button.svelte';
+	import {
+		current_height,
+		get_selectable_color_classes,
+		pinned_display_id
+	} from '$lib/ts/stores/ui_behavior';
+	import DNDGrip from '$lib/components/DNDGrip.svelte';
+	import { Menu, Pin, PinOff, VideoOff } from 'lucide-svelte';
+	import OnlineState from './OnlineState.svelte';
+	import type { Display, DisplayIdObject, MenuOption } from '$lib/ts/types';
+	import { is_selected, select, selected_display_ids } from '$lib/ts/stores/select';
+	import { get_display_by_id, screenshot_loop } from '$lib/ts/stores/displays';
+	import { change_file_path, current_file_path } from '$lib/ts/stores/files';
+	import { liveQuery } from 'dexie';
+
+	let {
+		display_id_object,
+		get_display_menu_options,
+		close_pinned_display
+	}: {
+		display_id_object: DisplayIdObject;
+		get_display_menu_options: (display_id: string) => MenuOption[];
+		close_pinned_display: () => void;
+	} = $props();
+
+	let hovering_unselectable = $state(false);
+	let display = liveQuery(() => get_display_by_id(display_id_object.id));
+
+	async function onclick(e: Event) {
+		e.stopPropagation();
+		select(selected_display_ids, display_id_object.id, 'toggle');
+
+		// force file view update
+		await change_file_path($current_file_path);
+	}
+
+	async function on_preview_click(e: MouseEvent) {
+		if ($pinned_display_id === display_id_object.id) {
+			close_pinned_display();
+		} else {
+			$pinned_display_id = display_id_object.id;
+		}
+		await screenshot_loop(display_id_object.id);
+		e.stopPropagation();
+	}
+</script>
+
+<div
+	data-testid="display"
+	role="button"
+	tabindex="0"
+	onkeydown={(e) => {
+		if (e.key === 'Enter' || e.key === ' ') onclick(e);
+	}}
+	{onclick}
+	class="p-1 {get_selectable_color_classes(is_selected(display_id_object.id, $selected_display_ids), {
+		bg: true,
+		hover: true,
+		active: !hovering_unselectable,
+		text: true
+	})} rounded-xl flex flex-row justify-between h-{$current_height.display} transition-colors duration-100 gap-2 cursor-pointer w-full text-stone-200"
+>
+	<div class="flex flex-row gap-4 min-w-0 flex-1">
+		<!-- Left Preview Screen -->
+		<button
+			class="group relative aspect-video bg-stone-800 h-full rounded-lg overflow-hidden cursor-pointer text-stone-200 transition-colors duration-200"
+			onmouseenter={() => (hovering_unselectable = true)}
+			onmouseleave={() => (hovering_unselectable = false)}
+			onclick={on_preview_click}
+		>
+			<div class="flex h-full w-full items-center justify-center">
+				{#if $pinned_display_id === display_id_object.id}
+					<div class="size-[50%]">
+						<Pin class="size-full" />
+					</div>
+				{:else if $display && $display.preview.url}
+					<img src={$display.preview.url} alt="preview" class="w-full object-cover bg-black" />
+				{:else}
+					<!-- No Signal -->
+					<div class="size-full bg-black flex justify-center items-center">
+						<VideoOff class="size-[30%]" />
+					</div>
+				{/if}
+			</div>
+
+			<!-- Hover Effect -->
+			<span
+				class="pointer-events-none absolute inset-0 {$pinned_display_id === display_id_object.id
+					? 'bg-stone-700'
+					: 'bg-stone-700/70'} opacity-0 transition-opacity duration-200 flex items-center justify-center group-hover:opacity-100"
+			>
+				{#if $pinned_display_id === display_id_object.id}
+					<PinOff class="size-[50%]" aria-hidden="true" />
+				{:else}
+					<Pin class="size-[50%]" aria-hidden="true" />
+				{/if}
+			</span>
+		</button>
+		<!-- Middle Text Block -->
+		<div
+			class="h-full flex flex-col justify-center gap-1 select-none
+                min-w-0 basis-0 flex-1"
+		>
+			<div class="text-xl font-bold truncate w-full" title={$display?.name ?? ''}>
+				{$display?.name ?? ''}
+			</div>
+
+			<OnlineState
+				selected={is_selected(display_id_object.id, $selected_display_ids)}
+				status={$display?.status ?? null}
+			/>
+		</div>
+	</div>
+	<!-- Right Controls -->
+	<div class="flex flex-row h-full items-center gap-2 pr-3">
+		<DNDGrip
+			bg={get_selectable_color_classes(is_selected(display_id_object.id, $selected_display_ids), {
+				bg: true
+			})}
+		/>
+
+		<div
+			role="figure"
+			onmouseenter={() => (hovering_unselectable = true)}
+			onmouseleave={() => (hovering_unselectable = false)}
+		>
+			<Button
+				bg="bg-transparent"
+				hover_bg={get_selectable_color_classes(is_selected(display_id_object.id, $selected_display_ids), {
+					bg: true
+				})}
+				active_bg={get_selectable_color_classes(is_selected(display_id_object.id, $selected_display_ids), {
+					bg: true
+				})}
+				click_function={(e) => {
+					e.stopPropagation();
+				}}
+				menu_options={get_display_menu_options(display_id_object.id)}
+			>
+				<Menu />
+			</Button>
+		</div>
+	</div>
+</div>

control/frontend/src/lib/components/HighlightedText.svelte

@@ -0,0 +1,19 @@
+<script lang="ts">
+	let {
+		children,
+		bg = 'bg-stone-750',
+		fg = 'text-stone-200',
+		className = ''
+	}: {
+		children: any;
+		bg?: string;
+		fg?: string;
+		className?: string;
+	} = $props();
+</script>
+
+<div
+	class="{bg} {fg} {className} rounded-lg py-0.5 px-1 inline-block truncate min-w-0 max-w-full align-middle my-[1.5px]"
+>
+	{@render children()}
+</div>

control/frontend/src/lib/components/InodeElement.svelte

@@ -0,0 +1,397 @@
+<script lang="ts">
+	import { ArrowRight, Ban, FileIcon, Folder, Play } from 'lucide-svelte';
+	import {
+		current_height,
+		get_selectable_color_classes,
+		get_shifted_color
+	} from '$lib/ts/stores/ui_behavior';
+	import Button from '$lib/components/Button.svelte';
+	import {
+		supported_file_type_icon,
+		type Inode,
+		get_file_primary_key,
+		type FileOnDisplay,
+		type CompleteFileLoadingData
+	} from '$lib/ts/types';
+
+	import {
+		is_selected,
+		select,
+		selected_display_ids,
+		selected_file_ids
+	} from '$lib/ts/stores/select';
+	import {
+		change_file_path,
+		current_file_path,
+		get_date_mapping,
+		get_missing_colliding_display_ids
+	} from '$lib/ts/stores/files';
+	import RefreshPlay from '../svgs/RefreshPlay.svelte';
+	import { get_file_size_display_string, get_file_type } from '$lib/ts/utils';
+	import { open_file } from '$lib/ts/api_handler';
+	import { get_display_by_id, run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import { get_thumbnail_url } from '$lib/ts/stores/thumbnails';
+	import { liveQuery, type Observable } from 'dexie';
+	import { db } from '$lib/ts/database';
+
+	let { file, not_interactable = false }: { file: Inode; not_interactable?: boolean } = $props();
+
+	let missing_colliding_displays_ids:
+		| Observable<{ missing: string[]; colliding: string[] }>
+		| undefined = $state();
+	$effect(() => {
+		const s = $selected_file_ids;
+		missing_colliding_displays_ids = liveQuery(() => get_missing_colliding_display_ids(file, s));
+	});
+
+	let loading_data:
+		| Observable<CompleteFileLoadingData>
+		| undefined = $state();
+	$effect(() => {
+		const d = $selected_display_ids;
+		loading_data = liveQuery(() => get_loading_data(get_file_primary_key(file), d));
+	});
+
+	let loading_finished = $state(false);
+	$effect(() => {
+		if (!loading_data) return;
+		let prev: boolean | undefined;
+		const sub = loading_data.subscribe((v) => {
+			if (prev === true && v.is_loading === false) {
+				loading_finished = true;
+				setTimeout(() => (loading_finished = false), 200);
+			}
+			prev = v.is_loading;
+		});
+		return () => sub.unsubscribe();
+	});
+
+	let thumbnail_url = liveQuery(() => get_thumbnail_url(get_file_primary_key(file)));
+	let date_mapping: Observable<Record<string, Date>> = liveQuery(() =>
+		get_date_mapping(get_file_primary_key(file))
+	);
+
+	const is_folder = file.type === 'inode/directory';
+
+	function get_created_info(date_mapping: Record<string, Date> | undefined, full_string = false) {
+		if (!date_mapping) return '';
+		const keys = Object.keys(date_mapping);
+		if (keys.length === 0) return '';
+
+		if (keys.length === 1) return get_formated_created_string(date_mapping[keys[0]], full_string);
+
+		let out = '';
+		let is_different = false;
+		const first_formated_created_string = get_formated_created_string(
+			date_mapping[keys[0]],
+			full_string
+		);
+		out += `${keys[0]}: ${first_formated_created_string}`;
+
+		for (const key of keys.splice(0, 1)) {
+			const current_formated_created_string = get_formated_created_string(
+				date_mapping[key],
+				full_string
+			);
+			if (!is_different && current_formated_created_string !== first_formated_created_string)
+				is_different = true;
+			out += `\n${key}: ${current_formated_created_string}`;
+		}
+
+		if (full_string) {
+			return is_different ? out : first_formated_created_string;
+		} else {
+			return is_different ? 'versch.' : first_formated_created_string;
+		}
+	}
+
+	function get_formated_created_string(date_object: Date, full_string: boolean) {
+		if (full_string) {
+			return (
+				get_formated_date_string(date_object, true) + ' ' + get_formated_time_string(date_object)
+			);
+		} else if (date_object.toDateString() === new Date().toDateString()) {
+			return get_formated_time_string(date_object);
+		} else {
+			return get_formated_date_string(date_object);
+		}
+	}
+
+	function get_formated_time_string(date_object: Date) {
+		return `${date_object.getHours().toString().padStart(2, '0')}:${date_object.getMinutes().toString().padStart(2, '0')}`;
+	}
+
+	function get_formated_date_string(date_object: Date, full_year = false) {
+		return `${date_object.getDate().toString().padStart(2, '0')}.${(date_object.getMonth() + 1).toString().padStart(2, '0')}.${date_object
+			.getFullYear()
+			.toString()
+			.slice(full_year ? 0 : 2)}`;
+	}
+
+	function get_grayed_out_text_color_strings(is_selected: boolean): string {
+		if (not_interactable) return 'text-stone-400';
+		if ($loading_data?.is_loading) return 'text-white/20';
+		const color = is_selected ? 'text-stone-600' : 'text-stone-400';
+		const factor = is_selected ? -1 : 1;
+		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
+	}
+
+	function get_grayed_out_border_color_strings(is_selected: boolean): string {
+		if (not_interactable) return 'border-stone-550';
+		if ($loading_data?.is_loading) return 'border-white/10';
+		const color = is_selected ? 'border-stone-450' : 'border-stone-550';
+		const factor = is_selected ? 1 : 1;
+		return `${color} group-hover:${get_shifted_color(color, factor * 100)} group-active:${get_shifted_color(color, factor * 150)}`;
+	}
+
+	function onclick(e: Event) {
+		if (not_interactable || $loading_data?.is_loading) return;
+		select(selected_file_ids, get_file_primary_key(file), 'toggle');
+		e.stopPropagation();
+	}
+
+	async function open() {
+		if (is_folder) {
+			await change_file_path($current_file_path + file.name + '/');
+		} else {
+			const path_to_file = $current_file_path + file.name;
+			await run_on_all_selected_displays((d) => open_file(d.ip, path_to_file));
+		}
+	}
+
+	function get_main_classes(): string {
+		let out = '';
+
+		if (loading_finished) {
+			out += 'bg-stone-500 text-white/30';
+		} else if ($loading_data?.is_loading) {
+			out += 'bg-stone-700 text-white/30';
+		} else {
+			out += get_selectable_color_classes(
+				!not_interactable && is_selected(get_file_primary_key(file), $selected_file_ids),
+				{
+					bg: true,
+					hover: !not_interactable,
+					active: !not_interactable,
+					text: true
+				}
+			);
+		}
+
+		if (not_interactable) {
+			out += ' rounded-lg';
+		} else if ($loading_data?.is_loading) {
+			out += ' rounded-r-lg';
+		} else {
+			out += ' rounded-r-lg cursor-pointer';
+		}
+
+		return out;
+	}
+
+	async function get_loading_data(
+		file_primary_key: string,
+		selected_display_ids: string[]
+	): Promise<CompleteFileLoadingData> {
+		const file_on_display_data: FileOnDisplay[] = await db.files_on_display
+			.where('file_primary_key')
+			.equals(file_primary_key)
+			.filter((e) => selected_display_ids.includes(e.display_id))
+			.toArray();
+		if (file_on_display_data.length === 0) {
+			return {
+				is_loading: true,
+				total_percentage: 0,
+				total_seconds_until_finish: -1,
+				display_data: []
+			};
+		}
+		const display_data = [];
+		let is_loading = false;
+		let percentage_sum = 0;
+		let total_seconds_until_finish = 0;
+		for (const fod of file_on_display_data) {
+			if (!!fod.loading_data) {
+				if (!is_loading) is_loading = true;
+				percentage_sum += fod.loading_data.percentage;
+				total_seconds_until_finish += fod.loading_data.seconds_until_finish;
+				const display = await get_display_by_id(fod.display_id);
+				if (!display) continue;
+				const display_data_element = {
+					loading_data: fod.loading_data,
+					display_name: display.name
+				};
+				if (fod.loading_data.type === 'sync_download') {
+					display_data.unshift(display_data_element); // insert sync_download element at beginning
+				} else {
+					display_data.push(display_data_element);
+				}
+			} else {
+				percentage_sum += 100;
+			}
+		}
+		let total_percentage = percentage_sum / display_data.length;
+		return {
+			is_loading,
+			total_percentage,
+			total_seconds_until_finish,
+			display_data
+		};
+	}
+</script>
+
+<div
+	data-testid="inode"
+	class="flex flex-row h-{$current_height.file} w-full {loading_finished
+		? 'scale-105'
+		: ''} transition-[scale] duration-300"
+>
+	{#if !not_interactable}
+		<div class="h-{$current_height.file} aspect-square max-w-15 flex">
+			<Button
+				disabled={!is_folder && get_file_type(file) === null}
+				title={!is_folder && get_file_type(file) === null ? 'Dateityp nicht unterstützt' : ''}
+				className="flex rounded-l-lg rounded-r-none {is_folder
+					? 'text-stone-450'
+					: 'text-stone-800'} w-full"
+				div_class="w-full"
+				bg={get_selectable_color_classes(
+					!is_folder && get_file_type(file) !== null,
+					{
+						bg: true
+					},
+					-50
+				)}
+				hover_bg={get_selectable_color_classes(
+					!is_folder,
+					{
+						bg: true
+					},
+					50
+				)}
+				active_bg={get_selectable_color_classes(
+					!is_folder,
+					{
+						bg: true
+					},
+					100
+				)}
+				click_function={(e) => {
+					open();
+					e.stopPropagation();
+				}}
+			>
+				{#if is_folder}
+					<ArrowRight class="size-full" strokeWidth="3" />
+				{:else if $missing_colliding_displays_ids && $missing_colliding_displays_ids.missing.length !== 0}
+					<RefreshPlay className="size-full" />
+				{:else if get_file_type(file) !== null}
+					<Play class="size-full" strokeWidth="3" />
+				{:else}
+					<Ban class="size-full" strokeWidth="3" />
+				{/if}
+			</Button>
+		</div>
+	{/if}
+	<div
+		role="button"
+		tabindex="0"
+		onkeydown={(e) => {
+			if (e.key === 'Enter' || e.key === ' ') onclick(e);
+		}}
+		{onclick}
+		class="{get_main_classes()} relative transition-colors duration-200 gap-4 flex flex-row justify-between group w-full min-w-0"
+	>
+		{#if $loading_data?.is_loading}
+			<div
+				class="absolute pointer-events-none inset-y-0 left-0 transition-[width] duration-200 bg-stone-600 rounded-r-lg"
+				style={`width: ${Math.min($loading_data.total_percentage, 100)}%;`}
+			></div>
+		{/if}
+		<div class="flex flex-row gap-2 min-w-0 w-full z-10">
+			<div class="aspect-square rounded-md flex justify-center items-center">
+				{#if is_folder}
+					<Folder class="size-full p-2" />
+				{:else if $thumbnail_url || null}
+					<img
+						src={$thumbnail_url || null}
+						alt="ERR"
+						class="object-contain size-full select-none block p-1 rounded-lg text-center content-center text-red-300"
+						draggable="false"
+					/>
+				{:else if supported_file_type_icon[get_file_type(file)?.display_name || '']}
+					{@const Icon = supported_file_type_icon[get_file_type(file)?.display_name || '']}
+					<Icon class="size-full p-2" />
+				{:else}
+					<FileIcon class="size-full p-2" />
+				{/if}
+			</div>
+			<div class="content-center truncate select-none w-full" title={file.name}>
+				{file.name.includes('.') && !is_folder && get_file_type(file)
+					? file.name.slice(0, file.name.lastIndexOf('.'))
+					: file.name}
+			</div>
+		</div>
+		<div
+			class=" p-1 flex flex-row items-center gap-1 pr-1 z-10 {get_grayed_out_text_color_strings(
+				is_selected(get_file_primary_key(file), $selected_file_ids)
+			)} duration-200 transition-colors"
+		>
+			<!-- {#if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[1].length !== 0}
+				<Button
+					className="h-8 aspect-square transition-colors duration-200 !p-1.5 text-stone-100"
+					bg="bg-red-500"
+					click_function={(e) => {
+						e.stopPropagation();
+					}}
+				>
+					<TriangleAlert class="size-full" />
+				</Button>
+			{:else if get_display_ids_where_file_is_missing($current_file_path, file, $selected_display_ids, $all_files)[0].length !== 0}
+				<Button
+					className="h-8 aspect-square transition-colors duration-200 !p-1.5"
+					bg="bg-transparent"
+					hover_bg={get_selectable_color_classes(false, {
+						bg: true
+					})}
+					active_bg={get_selectable_color_classes(false, {
+						bg: true
+					})}
+					click_function={(e) => {
+						e.stopPropagation();
+					}}
+				>
+					<RefreshCcwDot class="size-full" />
+				</Button>
+			{/if} -->
+			<div
+				class="w-14 content-center text-center select-none text-xs whitespace-nowrap"
+				title={get_created_info($date_mapping, true)}
+			>
+				{get_created_info($date_mapping)}
+			</div>
+			<div
+				class="h-[70%] border {get_grayed_out_border_color_strings(
+					is_selected(get_file_primary_key(file), $selected_file_ids)
+				)} duration-200 transition-colors my-1"
+			></div>
+			<div
+				class="w-12 content-center text-center select-none text-xs whitespace-nowrap truncate"
+				title={file.type}
+			>
+				{is_folder ? 'Ordner' : (get_file_type(file)?.display_name ?? '?')}
+			</div>
+			<div
+				class="h-[70%] border {get_grayed_out_border_color_strings(
+					is_selected(get_file_primary_key(file), $selected_file_ids)
+				)} duration-200 transition-colors"
+			></div>
+			<div
+				class="w-12 content-center text-center select-none text-xs whitespace-nowrap"
+				title={get_file_size_display_string(file.size, 3)}
+			>
+				{get_file_size_display_string(file.size)}
+			</div>
+		</div>
+	</div>
+</div>

control/frontend/src/lib/components/NumberSettingInput.svelte

@@ -0,0 +1,66 @@
+<script lang="ts">
+	import type { NumberSetting } from '$lib/ts/types';
+	import { ChevronDown, ChevronUp, Minus, Plus } from 'lucide-svelte';
+	import Button from './Button.svelte';
+
+	let {
+		number_setting,
+		on_change,
+		className = '',
+        disabled = false,
+	}: {
+		number_setting: NumberSetting;
+		on_change: (new_value: number) => void;
+		className?: string;
+        disabled?: boolean;
+	} = $props();
+
+	let el: HTMLInputElement | null = null;
+
+	function increase() {
+        if (!el) return;
+		el.stepUp();
+		el.dispatchEvent(new Event('input', { bubbles: true }));
+		on_change(Number(el.value));
+	}
+
+	function decrease() {
+        if (!el) return;
+		el.stepDown();
+		el.dispatchEvent(new Event('input', { bubbles: true }));
+        on_change(Number(el.value));
+	}
+
+    function on_blur() {
+        if (!el) return;
+        let value = Number(el.value);
+        if (value > number_setting.max) value = number_setting.max;
+        else if (value < number_setting.min) value = number_setting.min;
+        el.value = String(value);
+        on_change(value);
+    }
+</script>
+
+<div class="flex flex-row {className}">
+	<Button click_function={increase} className="rounded-r-none" disabled={disabled}>
+        <ChevronUp />
+    </Button>
+	<input
+        bind:this={el}
+		class="bg-stone-700 focus:bg-stone-550 focus:outline-none transition-colors duration-200 py-2 px-4 w-15 text-center
+        {disabled ? 'text-stone-500 cursor-not-allowed' : 'hover:bg-stone-600'}
+        [appearance:textfield]
+        [&::-webkit-outer-spin-button]:appearance-none
+        [&::-webkit-inner-spin-button]:appearance-none"
+		type="number"
+        disabled={disabled}
+		max={number_setting.max}
+		min={number_setting.min}
+		value={number_setting.now}
+		step={number_setting.step}
+        onblur={on_blur}
+	/>
+    <Button click_function={decrease} className="rounded-l-none" disabled={disabled}>
+        <ChevronDown />
+    </Button>
+</div>

control/frontend/src/lib/components/OnlineState.svelte

@@ -1,11 +1,16 @@
 <script lang="ts">
-	import { display_status_to_info, type DisplayStatus } from "../ts/types";
+	import { type DisplayStatus } from '$lib/ts/types';
+	import { display_status_to_info } from '$lib/ts/utils';
 
-	let { selected, status, className = "" } = $props<{
+	let {
+		selected,
+		status,
+		className = ''
+	}: {
 		selected: boolean;
 		status: DisplayStatus;
-        className?: string;
+		className?: string;
-	}>();
+	} = $props();
 
 	function get_text_color(selected: boolean, status: DisplayStatus) {
 		switch (status) {

control/frontend/src/lib/components/PopUp.svelte

@@ -0,0 +1,80 @@
+<script lang="ts">
+	import { X } from 'lucide-svelte';
+	import Button from './Button.svelte';
+	import type { PopupContent } from '$lib/ts/types';
+	import { fade } from 'svelte/transition';
+	import { onMount } from 'svelte';
+
+	let {
+		content,
+		close_function,
+		className = '',
+		snippet_container_class = ''
+	}: {
+		content: PopupContent;
+		close_function: () => void;
+		className?: string;
+		snippet_container_class?: string;
+	} = $props();
+
+	function try_to_close() {
+		if (!content.closable || !content.open) return;
+		close_function();
+	}
+
+	function handleKeydown(e: KeyboardEvent) {
+		if (e.key === 'Escape') {
+			try_to_close();
+		}
+	}
+
+	onMount(() => {
+		window.addEventListener('keydown', handleKeydown);
+		return () => window.removeEventListener('keydown', handleKeydown);
+	});
+</script>
+
+{#if content.open}
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
+	<!-- svelte-ignore a11y_click_events_have_key_events -->
+	<div
+		class="absolute inset-0 backdrop-blur flex justify-center items-center z-50 {className}"
+		onclick={try_to_close}
+		transition:fade={{ duration: 100 }}
+	>
+		<!-- svelte-ignore a11y_no_static_element_interactions -->
+		<!-- svelte-ignore a11y_click_events_have_key_events -->
+		<div
+			class="bg-stone-800 rounded-2xl min-w-[30%] max-w-[90%] max-h-[85%] flex flex-col shadow-2xl/60 overflow-hidden {content.window_class ??
+				''}"
+			onclick={(e) => e.stopPropagation()}
+		>
+			{#if content.title}
+				<div class="font-bold bg-stone-700 p-1.5 flex flex-row justify-between gap-8 w-full">
+					<div
+						class="flex flex-row flex-1 gap-3 pl-2 py-1 items-center grow whitespace-nowrap min-w-0 shrink-0 text-lg {content.title_class ??
+							''}"
+					>
+						{#if content.title_icon}
+							{@const Icon = content.title_icon}
+							<Icon strokeWidth="2" class="shrink-0" />
+						{/if}
+						<div class="shrink-0">
+							{content.title}
+						</div>
+					</div>
+					<div class="flex aspect-square shrink-0">
+						{#if content.closable}
+							<Button className="aspect-square p-1.5!" click_function={try_to_close}>
+								<X />
+							</Button>
+						{/if}
+					</div>
+				</div>
+			{/if}
+			<div class="p-2 min-h-0 overflow-auto flex flex-col gap-2 {snippet_container_class}">
+				{@render content.snippet(content.snippet_arg)}
+			</div>
+		</div>
+	</div>
+{/if}

control/frontend/src/lib/components/TextInput.svelte

@@ -0,0 +1,134 @@
+<script lang="ts">
+	import { fade } from 'svelte/transition';
+	import { get_shifted_color } from '$lib/ts/stores/ui_behavior';
+	import { onMount } from 'svelte';
+	import { selected_display_ids } from '$lib/ts/stores/select';
+
+	let {
+		current_value = $bindable(),
+		current_valid = $bindable(),
+		className = '',
+		bg = 'bg-stone-750',
+		title,
+		placeholder = '',
+		is_valid_function = null,
+		focused_on_start = false,
+		extension = null,
+		enter_mode = 'none',
+		enter_function = null
+	}: {
+		current_value: string;
+		current_valid: boolean;
+		className?: string;
+		bg?: string;
+		title: string;
+		placeholder?: string;
+		is_valid_function?: ((input: string) => [boolean, string] | Promise<[boolean, string]>) | null;
+		focused_on_start?: boolean;
+		extension?: string | null;
+		enter_mode?: 'none' | 'focus_next' | 'submit';
+		enter_function?: (() => void) | null;
+	} = $props();
+
+	let focus_bg = get_shifted_color(bg, 100);
+	let focused: boolean = $state(false);
+	let current_info = $state('');
+	let input_element: HTMLInputElement;
+
+	async function validate_input() {
+		if (!is_valid_function) return;
+		[current_valid, current_info] = await is_valid_function(current_value.trim());
+	}
+
+	function get_highlighting_string(): string {
+		if (!is_valid_function) return '';
+		if (current_valid) {
+			return 'focus-within:inset-ring-2 focus-within:inset-ring-green-400';
+		} else {
+			return 'inset-ring-2 inset-ring-red-400';
+		}
+	}
+
+	function focus_next_element() {
+		const focusable = Array.from(document.querySelectorAll<HTMLElement>('input')).filter(
+			(el) => !el.hasAttribute('disabled')
+		);
+
+		const index = focusable.indexOf(input_element);
+		if (index !== -1 && index < focusable.length - 1) {
+			focusable[index + 1].focus();
+		}
+	}
+
+	function handle_keydown(event: KeyboardEvent) {
+		if (event.key !== 'Enter' || !current_valid) return;
+
+		if (enter_mode === 'focus_next') {
+			event.preventDefault();
+			focus_next_element();
+		} else if (enter_mode === 'submit' && enter_function) {
+			event.preventDefault();
+			enter_function();
+		}
+	}
+
+	onMount(async () => {
+		await validate_input();
+		if (focused_on_start && input_element) input_element.focus();
+
+		selected_display_ids.subscribe(async () => {
+			await validate_input();
+		});
+	});
+</script>
+
+<div class="flex flex-col {className} relative">
+	<div class="flex flex-row justify-between text-sm px-1 gap-4">
+		<div class="text-stone-400">
+			{title}:
+		</div>
+		{#if is_valid_function && focused}
+			<div
+				class={current_valid ? 'text-green-400' : 'text-red-400'}
+				transition:fade={{ duration: 100 }}
+			>
+				{current_info}
+			</div>
+		{/if}
+	</div>
+	<!-- <input
+		bind:this={input_element}
+		bind:value={current_value}
+		bind:focused
+		onkeydown={handle_keydown}
+		type="text"
+		oninput={validate_input}
+		class="{bg} focus:{focus_bg} outline-none py-2 px-3 rounded-xl transition-all duration-100 {get_highlighting_string()}"
+		{placeholder}
+	/> -->
+
+	<!-- svelte-ignore a11y_no_static_element_interactions -->
+	<!-- svelte-ignore a11y_click_events_have_key_events -->
+	<div
+		onclick={() => {
+			input_element.focus();
+		}}
+		class="{bg} focus-within:{focus_bg} flex items-center rounded-xl {get_highlighting_string()} cursor-text"
+	>
+		<input
+			bind:this={input_element}
+			bind:value={current_value}
+			bind:focused
+			onkeydown={handle_keydown}
+			oninput={validate_input}
+			type="text"
+			class=" outline-none py-2 px-3 transition-all duration-100 grow group"
+			{placeholder}
+		/>
+		{#if extension}
+			<span class="pr-3 text-stone-400 select-none pointer-events-none">
+				{extension}
+			</span>
+		{/if}
+	</div>
+</div>

control/frontend/src/lib/index.ts

@@ -1 +0,0 @@
-// place files you want to import through the `$lib` alias in this folder.

control/frontend/src/lib/svgs/RefreshPlay.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-    let {className = ''} = $props<{className?: string}>();
+	let { className = '' }: { className?: string } = $props();
 </script>
 
 <svg

control/frontend/src/lib/ts/api_handler.ts

@@ -0,0 +1,305 @@
+import { notifications } from './stores/notification';
+import {
+	to_display_status,
+	type DisplayStatus,
+	type Inode,
+	type RequestResponse,
+	type ShellCommandResponse,
+	type TreeElement
+} from './types';
+import { dev } from '$app/environment';
+import { get_sanitized_file_url } from './utils';
+
+export async function get_screenshot(ip: string): Promise<Blob | null> {
+	const options = { method: 'PATCH' };
+	const response = await request_display(ip, '/takeScreenshot', options);
+	if (!response.ok || !response.blob) return null;
+	return response.blob;
+}
+
+export async function open_file(ip: string, path_to_file: string): Promise<void> {
+	const options = { method: 'PATCH', headers: { 'content-type': 'application/octet-stream' } };
+	await request_display(ip, get_sanitized_file_url(path_to_file), options);
+}
+
+export async function send_keyboard_input(
+	ip: string,
+	inputs: { key: string; action: 'press' | 'release' }[]
+): Promise<void> {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			inputs
+		})
+	};
+	await request_display(ip, '/keyboardInput', options);
+}
+
+export async function show_html(ip: string, html: string): Promise<void> {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			html: html
+		})
+	};
+	await request_display(ip, '/showHTML', options);
+}
+
+export async function get_file_data(
+	ip: string,
+	path: string
+): Promise<{ folder_element: Inode; date_created: Date }[] | null> {
+	interface FileInfo {
+		name: string;
+		type: string;
+		size: string;
+		created: string;
+	}
+	const command = `cd ".${path}" && find . -maxdepth 1 -mindepth 1 -print0 | while IFS= read -r -d '' f; do
+        typ=$(file -b --mime-type -- "$f")
+        size=$(stat -c '%s' -- "$f")
+        created=$(stat -c '%w' -- "$f")
+        [ "$created" = "-" ] && created=$(stat -c '%y' -- "$f")
+        jq -n --arg name "$f" --arg type "$typ" --arg size "$size" --arg created "$created" \
+            '{name:$name, type:$type, size:($size|tostring), created:$created}' | tr -d '\n'
+        echo
+        done
+    `;
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok || !raw_response.json) return null;
+	const json_response = raw_response.json as ShellCommandResponse;
+	if (json_response.exitCode === 0 && json_response.stdout.trim() === '') return [];
+	if (handle_shell_error(ip, json_response, command, true)) return null;
+	if (json_response.stdout.trim() === '') return null;
+
+	const response: FileInfo[] = json_response.stdout
+		.trim()
+		.split('\n')
+		.filter(Boolean)
+		.map((line: string) => JSON.parse(line) as FileInfo);
+
+	const folder_element_list: { folder_element: Inode; date_created: Date }[] = [];
+
+	for (const response_element of response) {
+		// filter hidden files (start with '.' -> './.config')
+		if (response_element.name.charAt(2) === '.') continue;
+		const folder_element: Inode = {
+			path: path,
+			name: response_element.name.slice(2), // remove "./"
+			type: response_element.type,
+			size: Number(response_element.size),
+			thumbnail: null
+		};
+		folder_element_list.push({ folder_element, date_created: new Date(response_element.created) });
+	}
+	return folder_element_list;
+}
+
+export async function get_file_tree_data(ip: string, path: string): Promise<TreeElement[] | null> {
+	const command = `cd ".${path}" && tree -Js`;
+	const raw_response = await run_shell_command(ip, command);
+
+	if (!raw_response.ok || !raw_response.json) return null;
+	const json_response = raw_response.json as ShellCommandResponse;
+	if (handle_shell_error(ip, json_response, command, true)) return null;
+
+	const tree_element: TreeElement | null = JSON.parse(json_response.stdout.trim())[0] || null;
+
+	return tree_element?.contents || null;
+}
+
+export async function create_path(ip: string, path: string): Promise<void> {
+	const command = `mkdir -p ".${path}"`;
+
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok || !raw_response.json) return;
+	const json_response = raw_response.json as ShellCommandResponse;
+	handle_shell_error(ip, json_response, command, true);
+}
+
+export async function rename_file(
+	ip: string,
+	path: string,
+	old_file_name: string,
+	new_file_name: string
+): Promise<void> {
+	const command: string = `cd ".${path}" && mv "${old_file_name}" "${new_file_name}"`;
+
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok || !raw_response.json) return;
+	const json_response = raw_response.json as ShellCommandResponse;
+	handle_shell_error(ip, json_response, command, true);
+}
+
+export async function delete_files(
+	ip: string,
+	current_path: string,
+	file_names: string[]
+): Promise<void> {
+	let command: string = `cd ".${current_path}"`;
+	for (const file_name of file_names) {
+		command += ` && rm -r "${file_name}"`;
+	}
+	const raw_response = await run_shell_command(ip, command);
+	if (!raw_response.ok || !raw_response.json) return;
+	const json_response = raw_response.json as ShellCommandResponse;
+	handle_shell_error(ip, json_response, command, true);
+}
+
+export async function show_blackscreen(ip: string): Promise<void> {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			html: '<p></p>'
+		})
+	};
+	await request_display(ip, '/showHTML', options);
+}
+
+export async function get_thumbnail_blob(ip: string, path_to_file: string): Promise<Blob | null> {
+	const raw_response = await request_display(
+		ip,
+		get_sanitized_file_url(path_to_file, true),
+		{ method: 'GET' },
+		[415]
+	);
+	if (!raw_response.ok || !raw_response.blob) return null;
+	return raw_response.blob;
+}
+
+export async function ping_ip(ip: string): Promise<DisplayStatus> {
+	const raw_response = await request_control(`/ping?ip=${ip}`, { method: 'GET' });
+	if (!raw_response.ok || !raw_response.json) return null;
+
+	const status = raw_response.json.status;
+	if (typeof status === 'string') {
+		return to_display_status(status);
+	}
+	return null;
+}
+
+async function request_display(
+	ip: string,
+	api_route: string,
+	options: { method: string; headers?: Record<string, string>; body?: string },
+	supress_error_handling_http_codes: number[] = []
+): Promise<RequestResponse> {
+	const url = `http://${ip}:1323/api${api_route}`;
+	return await request(url, options, supress_error_handling_http_codes);
+}
+
+async function request_control(
+	api_route: string,
+	options: { method: string; headers?: Record<string, string>; body?: string }
+): Promise<RequestResponse> {
+	const url = `http://127.0.0.1:8080/api${api_route}`;
+	return await request(url, options);
+}
+
+async function request(
+	url: string,
+	options: { method: string; headers?: Record<string, string>; body?: string },
+	supress_error_handling_http_codes: number[] = []
+): Promise<RequestResponse> {
+	try {
+		const cache_buster = `${url.includes('?') ? '&' : '?'}=${Date.now()}`;
+		if (dev) {
+			console.debug('Sending request: ', url + cache_buster, 'with', options.body ?? 'none');
+		}
+		const response = await fetch(url + cache_buster, options);
+		if (response.ok || supress_error_handling_http_codes.includes(response.status)) {
+			const contentType = response.headers.get('content-type') || '';
+			let request_response: RequestResponse;
+			if (!contentType.includes('application/json')) {
+				const blob: Blob = await response.blob();
+				request_response = { ok: response.ok, http_code: response.status, blob: blob };
+			} else {
+				const json: Record<string, unknown> = await response.json();
+				request_response = { ok: response.ok, http_code: response.status, json: json };
+				if (dev) {
+					console.debug(request_response);
+				}
+			}
+			return request_response;
+		}
+
+		let error_description = url;
+		if (response.headers.get('content-type')?.includes('application/json')) {
+			try {
+				const json: { description: string } = await response.json();
+				error_description += '\n' + json.description;
+			} catch {
+				error_description += '\nCould not parse error description';
+			}
+		}
+		notifications.push(
+			'error',
+			`Fehler bei API-Anfrage`,
+			`\nHTTP: ${response.status}\n${error_description}`
+		);
+	} catch (error: unknown) {
+		if (error instanceof TypeError && /fetch|NetworkError/i.test(error.message)) {
+			if (dev) {
+				console.warn('Request failed - Is the targeted device online?');
+			}
+		} else {
+			console.error(url, error);
+			notifications.push('error', `Fataler Fehler bei API-Anfrage`, `${url}\nFehler: ${error}`);
+		}
+	}
+	return { ok: false };
+}
+
+function handle_shell_error(
+	ip: string,
+	shell_response: ShellCommandResponse,
+	shell_command: string,
+	command_includs_cd: boolean
+): boolean {
+	if (shell_response.exitCode !== 0) {
+		if (
+			command_includs_cd &&
+			shell_response.stderr &&
+			/bash: line \d+: cd: .+: No such file or directory/.test(shell_response.stderr)
+		) {
+			if (dev) {
+				console.debug('current file_path does not exist on display:', ip);
+			}
+			return true;
+		}
+		console.error(shell_response);
+		notifications.push(
+			'error',
+			`Fehler in API-Shell`,
+			`${ip}\n${shell_command}\nFehler (${shell_response.exitCode}): ${shell_response.stderr}`
+		);
+		return true;
+	}
+	return false;
+}
+
+async function run_shell_command(ip: string, command: string): Promise<RequestResponse> {
+	const options = {
+		method: 'PATCH',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({
+			command: command
+		})
+	};
+	return await request_display(ip, '/shellCommand', options);
+}
+
+export async function shutdown(ip: string): Promise<RequestResponse> {
+	return await run_shell_command(ip, 'xfce4-session-logout --halt');
+}
+
+export async function startup(mac: string): Promise<RequestResponse> {
+	return await request_control(`/wakeOnLan`, {
+		method: 'POST',
+		headers: { 'content-type': 'application/json' },
+		body: JSON.stringify({ mac_address: mac })
+	});
+}

control/frontend/src/lib/ts/database.ts

@@ -0,0 +1,47 @@
+import Dexie, { type Table } from 'dexie';
+import type { Display, DisplayGroup, FileOnDisplay, Inode } from './types';
+
+export class FileDatabase extends Dexie {
+	files!: Table<Inode, [string, string, number, string]>;
+	files_on_display!: Table<FileOnDisplay, [string, string]>;
+	displays!: Table<Display, string>;
+	display_groups!: Table<DisplayGroup, string>;
+
+	constructor() {
+		super('FileDatabase');
+
+		this.version(1).stores({
+			files: `
+        [path+name+size+type],
+        path,
+        name,
+        size,
+        type,
+        thumbnail
+      `,
+			files_on_display: `
+        [display_id+file_primary_key],
+        display_id,
+        file_primary_key,
+        date_created,
+        loading_data
+      `,
+			displays: `
+        id,
+        ip,
+        mac,
+        position,
+        preview,
+        group_id,
+        name,
+        status
+      `,
+			display_groups: `
+        id,
+        position
+      `
+		});
+	}
+}
+
+export const db = new FileDatabase();

control/frontend/src/lib/ts/file_transfer_handler.ts

@@ -0,0 +1,454 @@
+import { db } from './database';
+import { get_display_by_id } from './stores/displays';
+import {
+	create_path_on_all_selected_displays,
+	get_folder_elements,
+	get_file_by_id,
+	remove_all_files_without_display,
+	remove_file_from_display_recusively
+} from './stores/files';
+import { notifications } from './stores/notification';
+import { generate_thumbnail } from './stores/thumbnails';
+import {
+	get_file_primary_key,
+	type FileLoadingData,
+	type FileOnDisplay,
+	type FileTransferTask,
+	type Inode,
+	type ShortDisplay
+} from './types';
+import { get_sanitized_file_url, get_uuid, make_valid_name } from './utils';
+
+let is_processing: boolean = false;
+const tasks: FileTransferTask[] = [];
+
+export async function add_upload(
+	file_list: FileList,
+	selected_display_ids: string[],
+	current_file_path: string
+) {
+	if (file_list.length === 0) return console.warn('Upload canceled: no selected files');
+
+	await create_path_on_all_selected_displays(current_file_path, selected_display_ids);
+
+	const used_file_names: string[] = await (
+		await get_folder_elements(current_file_path, selected_display_ids)
+	).map((e) => e.name);
+
+	for (const file of file_list) {
+		const file_name = generate_valid_file_name(file.name, used_file_names);
+		used_file_names.push(file_name);
+
+		const db_file: Inode = {
+			path: current_file_path,
+			name: file_name,
+			size: file.size,
+			type: file.type,
+			thumbnail: null
+		};
+		const file_primary_key = get_file_primary_key(db_file);
+		await db.files.put(db_file);
+
+		const upload_task_promises = selected_display_ids.map(async (display_id) => {
+			const display_ip = (await get_display_by_id(display_id))?.ip;
+			if (!display_ip) return;
+
+			const db_file_on_display: FileOnDisplay = {
+				display_id,
+				file_primary_key,
+				date_created: new Date(),
+				loading_data: {
+					type: 'upload',
+					percentage: 0,
+					bytes_per_second: 0,
+					seconds_until_finish: -1
+				}
+			};
+			await db.files_on_display.put(db_file_on_display);
+
+			return {
+				data: {
+					type: 'upload' as const,
+					file
+				},
+				display: {
+					id: display_id,
+					ip: display_ip
+				},
+				path: current_file_path,
+				file_name: file_name,
+				file_primary_key,
+				bytes_total: file.size
+			};
+		});
+
+		const upload_tasks = (await Promise.all(upload_task_promises)).filter((e) => !!e);
+		tasks.push(...upload_tasks);
+	}
+
+	await start_task_processing();
+}
+
+export async function add_sync_recursively(
+	selected_file_id: string,
+	selected_display_ids: string[]
+) {
+	const file_data = await find_file_data_on_active_selected_display(
+		selected_file_id,
+		selected_display_ids
+	);
+	if (!file_data) return console.warn('Sync canceled: no file_data');
+
+	if (file_data.file.type === 'inode/directory') {
+		const new_path = file_data.file.path + file_data.file.name + '/';
+		const elements_in_folder = await get_folder_elements(new_path, selected_display_ids);
+		if (elements_in_folder.length === 0) {
+			await create_path_on_all_selected_displays(new_path, selected_display_ids);
+		} else {
+			for (const el of elements_in_folder) {
+				await add_sync_recursively(get_file_primary_key(el), selected_display_ids);
+			}
+		}
+		return; // cannot sync folder
+	}
+
+	if (file_data.short_displays_without_file.length === 0) return; // file is present on all selected displays
+	await create_path_on_all_selected_displays(file_data.file.path, selected_display_ids);
+
+	tasks.push({
+		data: {
+			type: 'sync',
+			destination_displays: file_data.short_displays_without_file
+		},
+		display: file_data.short_display_with_file,
+		path: file_data.file.path,
+		file_name: file_data.file.name,
+		file_primary_key: selected_file_id,
+		bytes_total: file_data.file.size
+	});
+
+	await db.files_on_display.update([file_data.short_display_with_file.id, selected_file_id], {
+		loading_data: {
+			type: 'sync_download',
+			percentage: 0,
+			bytes_per_second: 0,
+			seconds_until_finish: -1
+		}
+	});
+	const display_ids_without_file = file_data.short_displays_without_file.map((d) => d.id);
+	const new_file_loading_data: FileLoadingData = {
+		type: 'sync_upload',
+		percentage: 0,
+		bytes_per_second: 0,
+		seconds_until_finish: -1
+	};
+	const new_fods: FileOnDisplay[] = display_ids_without_file.map((display_id) => ({
+		display_id,
+		file_primary_key: selected_file_id,
+		date_created: new Date(),
+		loading_data: new_file_loading_data
+	}));
+	console.log("TEST", new_fods)
+	await db.files_on_display.bulkPut(new_fods);
+
+	await start_task_processing();
+}
+
+async function find_file_data_on_active_selected_display(
+	selected_file_id: string,
+	selected_display_ids: string[]
+): Promise<{
+	file_on_display: FileOnDisplay;
+	file: Inode;
+	short_display_with_file: ShortDisplay;
+	short_displays_without_file: ShortDisplay[];
+} | null> {
+	const active_selected_displays = await db.displays
+		.where('id')
+		.anyOf(selected_display_ids)
+		.filter((d) => d.status === 'app_online')
+		.toArray();
+	const active_selected_display_ids = active_selected_displays.map((d) => d.id);
+
+	const fods = await db.files_on_display
+		.where('file_primary_key')
+		.equals(selected_file_id)
+		.filter((e) => active_selected_display_ids.includes(e.display_id))
+		.toArray();
+	if (fods.length < 0) return null;
+	const fod_with_file = fods[0];
+	const display_ids_with_file = fods.map((f) => f.display_id);
+
+	const ip = active_selected_displays.find((e) => e.id === fod_with_file.display_id)?.ip;
+	if (!ip) return null;
+
+	const short_displays_without_file: ShortDisplay[] = selected_display_ids
+		.filter((d) => !display_ids_with_file.includes(d))
+		.map((id) => {
+			const ip = active_selected_displays.find((d) => d.id === id)?.ip;
+			if (!ip) return null;
+			return { id, ip };
+		})
+		.filter((sd) => !!sd);
+
+	const inode = await get_file_by_id(selected_file_id);
+	if (!inode) return null;
+
+	return {
+		file_on_display: fod_with_file,
+		file: inode,
+		short_display_with_file: { id: fod_with_file.display_id, ip },
+		short_displays_without_file
+	};
+}
+
+function generate_valid_file_name(original_file_name: string, used_file_names: string[]): string {
+	const regex = /\s\((\d{1,3})\)$/;
+
+	let name: string = make_valid_name(original_file_name);
+	while (used_file_names.includes(name)) {
+		const last_dot = name.lastIndexOf('.');
+		let name_without_extension = last_dot > 0 ? name.slice(0, last_dot) : name;
+		const extension = last_dot > 0 ? name.slice(last_dot) : '';
+		if (!regex.test(name_without_extension)) {
+			name_without_extension += ' (1)';
+		} else {
+			const match = name_without_extension.match(regex);
+			const current_number: number = match ? Number(match[1]) : 0;
+			name_without_extension = name_without_extension.replace(regex, ` (${current_number + 1})`);
+		}
+		name = name_without_extension + extension;
+	}
+	return name;
+}
+
+async function upload(task: FileTransferTask): Promise<void> {
+	const task_data = task.data;
+	if (task_data.type !== 'upload' || !task_data.file)
+		return console.warn('Task cancelled: wrong task type:', task);
+
+	await upload_file_via_xhr(task, task.display, task_data.file);
+}
+
+export async function sync(task: FileTransferTask) {
+	if (task.data.type !== 'sync') return console.warn('Task cancelled: wrong task type:', task);
+
+	const hasOPFS =
+		typeof navigator !== 'undefined' &&
+		'storage' in navigator &&
+		'getDirectory' in navigator.storage;
+	if (!hasOPFS) {
+		return show_error(
+			task,
+			'OPFS (navigator.storage.getDirectory) nicht verfügbar – bitte Chromium/Edge/Chrome nutzen.'
+		);
+	}
+
+	const temp_name = `sync-${get_uuid()}.tmp`;
+
+	try {
+		// 01 - download file to disk (in browser, not for user)
+		const url = `http://${task.display.ip}:1323/api${get_sanitized_file_url(task.path + task.file_name)}`;
+		const fetch_source = await fetch(url, { method: 'GET' });
+		if (!fetch_source.ok || !fetch_source.body)
+			return show_error(task, `HTTP ${fetch_source.status}`);
+
+		const dir = await navigator.storage.getDirectory();
+		const file_handle = await dir.getFileHandle(temp_name, { create: true });
+		const writable = await file_handle.createWritable();
+		const reader = fetch_source.body.getReader();
+
+		const start_time = new Date();
+		while (true) {
+			const { value, done } = await reader.read();
+			if (done) break;
+			if (!value) continue;
+
+			await update_current_loading_data('sync_download', task, value.byteLength, start_time);
+			await writable.write(value);
+		}
+		await writable.close();
+
+		await db.files_on_display.update([task.display.id, task.file_primary_key], {
+			loading_data: null
+		});
+
+		// 02 - send downloaded file to every destination_display
+		const temp_file = await file_handle.getFile();
+
+		for (const current_short_display of task.data.destination_displays) {
+			await upload_file_via_xhr(task, current_short_display, temp_file);
+		}
+
+		await dir.removeEntry(temp_name);
+	} catch (e) {
+		show_error(task, String(e));
+	}
+}
+
+export async function download_file(selected_file_id: string, selected_display_ids: string[]) {
+	const file_data = await find_file_data_on_active_selected_display(
+		selected_file_id,
+		selected_display_ids
+	);
+	if (!file_data || file_data.file.type === 'inode/directory')
+		return console.warn('Download cancelled: is folder');
+
+	try {
+		const url = `http://${file_data.short_display_with_file.ip}:1323/api${get_sanitized_file_url(file_data.file.path + file_data.file.name)}`;
+
+		const a = document.createElement('a');
+		a.href = url;
+		a.download = file_data.file.name; // Hint für den Browser (Server-Header ist trotzdem besser)
+		a.rel = 'noopener';
+		document.body.appendChild(a);
+		a.click();
+		a.remove();
+	} catch (e) {
+		notifications.push(
+			'error',
+			'Fehler beim Dateidownload',
+			`Datei: "${file_data.file.name}", Display-IP: ${file_data.short_display_with_file.ip}\nFehler: ${e}`
+		);
+	}
+}
+
+async function start_task_processing() {
+	if (!is_processing) {
+		is_processing = tasks.length !== 0;
+		await start_task_loop();
+	}
+}
+
+async function start_task_loop() {
+	while (tasks.length > 0) {
+		const current_task = tasks[0];
+		if (current_task.data.type === 'upload') {
+			await upload(current_task);
+		} else if (current_task.data.type === 'sync') {
+			await sync(current_task);
+		}
+		tasks.shift(); // Remove current_task from tasks
+	}
+	is_processing = false;
+}
+
+async function upload_file_via_xhr(
+	task: FileTransferTask,
+	current_short_display: ShortDisplay,
+	current_file: File
+) {
+	const start_time = new Date();
+	const loading_type = task.data.type === 'upload' ? 'upload' : 'sync_upload';
+
+	return new Promise<void>((resolve) => {
+		const xhr = new XMLHttpRequest();
+		xhr.open(
+			'POST',
+			`http://${current_short_display.ip}:1323/api${get_sanitized_file_url(task.path + task.file_name)}`,
+			true
+		);
+		xhr.setRequestHeader('content-type', 'application/octet-stream');
+
+		xhr.upload.onprogress = (e) => {
+			const apply = async () => {
+				await update_current_loading_data(
+					loading_type,
+					task,
+					e.loaded,
+					start_time,
+					current_short_display.id
+				);
+			};
+			apply();
+		};
+
+		xhr.onerror = async (e: ProgressEvent) => {
+			await show_error(task, e);
+			resolve();
+		};
+
+		xhr.onreadystatechange = async () => {
+			if (xhr.readyState === 4) {
+				if (xhr.status == 200) {
+					// set loading_data to 100%
+					await db.files_on_display.update([current_short_display.id, task.file_primary_key], {
+						date_created: new Date(),
+						loading_data: null
+					});
+					// Generate Thumbnail if not done already
+					setTimeout(async () => {
+						const inode_element: Inode | undefined = await db.files.get(
+							JSON.parse(task.file_primary_key) as [string, string, number, string]
+						);
+						if (!!inode_element && inode_element.thumbnail === null) {
+							await generate_thumbnail(task.display.ip, task.path, inode_element);
+						}
+					}, 10);
+				} else {
+					await show_error(task, `HTTP ${xhr.status}`);
+				}
+				resolve();
+			}
+		};
+
+		xhr.send(current_file);
+	});
+}
+
+async function update_current_loading_data(
+	type: FileLoadingData['type'],
+	task: FileTransferTask,
+	current_bytes: number,
+	start_time: Date,
+	other_display_id: string | null = null
+) {
+	const current_percentage = Math.min(
+		task.bytes_total > 0 ? Math.round((current_bytes / task.bytes_total) * 100) : 1,
+		99
+	); // calculate percantage, but maximum value is 99%
+	const prognosed_data = get_prognosed_data(start_time, current_bytes, task.bytes_total);
+
+	await db.files_on_display.update(
+		[other_display_id ? other_display_id : task.display.id, task.file_primary_key],
+		{
+			loading_data: {
+				type,
+				percentage: current_percentage,
+				bytes_per_second: prognosed_data.bytes_per_second,
+				seconds_until_finish: prognosed_data.seconds_until_finish
+			}
+		}
+	);
+}
+
+function get_prognosed_data(
+	start_time: Date,
+	bytes_done: number,
+	bytes_total: number
+): { bytes_per_second: number; seconds_until_finish: number } {
+	const diff_seconds = (Date.now() - start_time.getTime()) / 1000;
+	const bytes_per_second = bytes_done / diff_seconds;
+
+	const seconds_until_finish = bytes_total / bytes_per_second;
+	return { bytes_per_second, seconds_until_finish };
+}
+
+async function show_error(task: FileTransferTask, error: ProgressEvent | string) {
+	const task_data = task.data;
+	console.error('Error in File-Transfer-Handler:', error, task);
+	notifications.push(
+		'error',
+		`Fehler beim ${task_data.type === 'upload' ? 'Dateiupload' : 'Sychronisieren von Dateien'}`,
+		`Datei: "${task.file_name}", Display-IP: ${task.display.ip}\nFehler: ${error}`
+	);
+	if (task_data.type === 'upload') {
+		await remove_file_from_display_recusively(task.display.id, task.file_primary_key);
+		await remove_all_files_without_display();
+	} else if (task_data.type === 'sync') {
+		for (const display_id of task_data.destination_displays.map((e) => e.id)) {
+			await remove_file_from_display_recusively(display_id, task.file_primary_key);
+		}
+		await remove_all_files_without_display();
+	}
+}

control/frontend/src/lib/ts/main.ts

@@ -0,0 +1,67 @@
+import { screenshot_loop } from './stores/displays';
+import { ping_ip } from './api_handler';
+import type { Display } from './types';
+import { update_folder_elements_recursively } from './stores/files';
+import { db } from './database';
+
+const update_display_status_interval_seconds = 20;
+const update_display_loading_status_interval_seconds = 2;
+
+const loading_display_ids: string[] = [];
+
+export async function on_app_start() {
+	await db.files.clear();
+	await db.files_on_display.clear();
+	await update_all_display_status(false);
+	await setInterval(
+		() => update_all_display_status(false),
+		update_display_status_interval_seconds * 1000
+	);
+	await setInterval(
+		() => update_all_display_status(true),
+		update_display_loading_status_interval_seconds * 1000
+	);
+}
+
+async function update_all_display_status(only_loading_displays: boolean) {
+	const not_loading_displays: Display[] = await db.displays
+		.filter((d) =>
+			only_loading_displays
+				? loading_display_ids.includes(d.id)
+				: !loading_display_ids.includes(d.id)
+		)
+		.toArray();
+	for (const display of not_loading_displays) {
+		await update_display_status(display);
+	}
+}
+
+export async function update_display_status(display: Display) {
+	const new_status = await ping_ip(display.ip);
+	if (new_status === null && display.status !== null) return;
+	if (new_status !== display.status) {
+		// status change
+		if (new_status === 'app_offline') {
+			loading_display_ids.push(display.id);
+		} else {
+			remove_display_from_loading_displays(display.id);
+			if (new_status === 'app_online') {
+				on_display_start(display);
+			}
+		}
+		display.status = new_status;
+		await db.displays.put(display); // save
+	}
+}
+
+export function remove_display_from_loading_displays(display_id: string) {
+	const index = loading_display_ids.indexOf(display_id);
+	if (index !== -1) {
+		loading_display_ids.splice(index, 1);
+	}
+}
+
+async function on_display_start(display: Display) {
+	await update_folder_elements_recursively(display, '/');
+	await screenshot_loop(display.id);
+}

control/frontend/src/lib/ts/stores/displays.ts

@@ -0,0 +1,251 @@
+import { get, writable, type Writable } from 'svelte/store';
+import type {
+	Display,
+	DisplayGroup,
+	DisplayIdGroup,
+	DisplayIdObject,
+	DisplayStatus
+} from '../types';
+import { is_selected, select, selected_display_ids } from './select';
+import { get_uuid, image_content_hash } from '../utils';
+import { get_screenshot } from '../api_handler';
+import { delete_and_deselect_unique_files_from_display } from './files';
+import { db } from '../database';
+import { dev } from '$app/environment';
+import { remove_display_from_loading_displays } from '../main';
+import { preview_settings } from './ui_behavior';
+
+export const local_displays: Writable<DisplayIdGroup[]> = writable<DisplayIdGroup[]>([]);
+
+export async function is_display_name_taken(name: string): Promise<boolean> {
+	const exists = await db.displays.where('name').equals(name).first();
+	return !!exists;
+}
+
+export async function add_display(
+	ip: string,
+	mac: string | null,
+	name: string,
+	status: DisplayStatus
+): Promise<Display | null> {
+	if (await is_display_name_taken(name)) return null;
+	const new_id = get_uuid();
+	const group = await db.display_groups.toCollection().first();
+	let group_id: string;
+	if (group) {
+		group_id = group.id;
+	} else {
+		group_id = get_uuid();
+		await db.display_groups.put({ id: group_id, position: 0 });
+	}
+	const element_count_in_group = (await db.displays.where('group_id').equals(group_id).toArray())
+		.length;
+	const display = {
+		id: new_id,
+		ip,
+		mac,
+		position: element_count_in_group,
+		preview: { currently_updating: false, url: null },
+		group_id: group_id,
+		name,
+		status
+	};
+	await db.displays.put(display);
+	return display;
+}
+
+export async function edit_display_data(
+	display_id: string,
+	ip: string,
+	mac: string | null,
+	name: string
+): Promise<Display | null> {
+	let display = await db.displays.get(display_id);
+	if (!display) return null;
+	display = { ...display, ip: ip, mac: mac, name: name };
+	await db.displays.put(display); // save
+	return display;
+}
+
+export async function remove_display(display_id: string) {
+	select(selected_display_ids, display_id, 'deselect');
+	await delete_and_deselect_unique_files_from_display(display_id);
+
+	const group_id = (await db.displays.get(display_id))?.group_id;
+	await db.displays.delete(display_id);
+	if (group_id && (await db.displays.where('group_id').equals(group_id).toArray()).length === 0) {
+		await db.display_groups.delete(group_id); // delete empty group
+	}
+	await remove_display_from_loading_displays(display_id);
+}
+
+export async function all_displays_of_group_selected(
+	display_group_id: string,
+	current_selected_displays: string[]
+): Promise<boolean> {
+	const displays_of_group: Display[] = await db.displays
+		.where('group_id')
+		.equals(display_group_id)
+		.toArray();
+	if (displays_of_group.length === 0) return false;
+
+	for (const display of displays_of_group) {
+		if (!is_selected(display.id, current_selected_displays)) {
+			return false;
+		}
+	}
+	return true;
+}
+
+export async function set_select_for_group(display_group_id: string, new_value: boolean) {
+	const displays_of_group: Display[] = await db.displays
+		.where('group_id')
+		.equals(display_group_id)
+		.toArray();
+	for (const display of displays_of_group) {
+		let action: string;
+		if (new_value === true) {
+			action = 'select';
+		} else {
+			action = 'deselect';
+		}
+
+		select(selected_display_ids, display.id, action as 'toggle' | 'select' | 'deselect');
+	}
+}
+
+export async function get_display_by_id(display_id: string): Promise<Display | null> {
+	return (await db.displays.get(display_id)) ?? null;
+}
+
+export async function screenshot_loop(display_id: string) {
+	const settings = get(preview_settings);
+	if (settings.mode === 'never') return;
+
+	const initial_retry_count = settings.retry_count.now;
+	const retry_seconds = get(preview_settings).retry_seconds.now;
+
+	const display = await db.displays.get(display_id);
+	if (!display || display.preview.currently_updating) return;
+
+	display.preview.currently_updating = true;
+	await db.displays.update(display.id, { preview: display.preview });
+
+	let last_hash: number | null = null;
+
+	let retry_count = initial_retry_count;
+	while (retry_count > 0) {
+		if (settings.mode !== 'always') retry_count -= 1;
+
+		const new_blob = await get_screenshot(display.ip);
+		if (!new_blob) {
+			display.preview = { currently_updating: false, url: null };
+			await db.displays.update(display.id, { preview: display.preview });
+			return;
+		}
+		const new_hash = await image_content_hash(new_blob);
+		if (last_hash !== new_hash) {
+			if (display.preview.url) {
+				URL.revokeObjectURL(display.preview.url);
+			}
+
+			last_hash = new_hash;
+			display.preview.url = URL.createObjectURL(new_blob);
+			await db.displays.update(display.id, { preview: display.preview });
+
+			retry_count = initial_retry_count;
+		}
+
+		await new Promise((resolve) => setTimeout(resolve, retry_seconds * 1000)); // sleep
+	}
+
+	display.preview.currently_updating = false;
+	await db.displays.update(display.id, { preview: display.preview });
+}
+
+export async function run_on_all_selected_displays(
+	run_function: (display: Display) => void | Promise<void>,
+	update_screenshot_afterwards: boolean = true,
+	ignore_offline: boolean = true
+) {
+	const maybe_displays: (Display | null)[] = await Promise.all(
+		// fails when only a single promis fails
+		get(selected_display_ids).map(async (id) => await get_display_by_id(id))
+	);
+	const displays: Display[] = maybe_displays.filter((d): d is Display => d !== null);
+
+	Promise.all(
+		displays.map(async (display) => {
+			if (!display || (ignore_offline && display.status === 'host_offline')) return;
+			await run_function(display);
+			if (update_screenshot_afterwards) {
+				await screenshot_loop(display.id);
+			}
+		})
+	);
+}
+
+export async function get_display_groups(): Promise<DisplayGroup[]> {
+	return await db.display_groups.orderBy('position').toArray();
+}
+
+export async function update_local_displays() {
+	const display_groups = await db.display_groups.orderBy('position').toArray();
+	const displays = await db.displays.orderBy('position').toArray();
+	const out: DisplayIdGroup[] = [];
+	for (const group of display_groups) {
+		out.push({
+			id: group.id,
+			displays: (await displays).filter((d) => d.group_id === group.id).map((d) => ({ id: d.id }))
+		});
+	}
+	return out;
+}
+
+export async function update_db_displays() {
+	local_displays.update((groups) => groups.filter((g) => g.displays.length !== 0));
+	const filtered_local_display_groups = get(local_displays)
+	const db_display_group_ids = (await db.display_groups.toArray()).map((group) => group.id);
+	const local_display_group_ids = filtered_local_display_groups.map((group) => group.id);
+
+	const display_group_ids_to_delete = db_display_group_ids.filter(
+		(group) => !local_display_group_ids.includes(group)
+	);
+	await db.display_groups.where('id').anyOf(display_group_ids_to_delete).delete();
+
+	for (let i = 0; i < filtered_local_display_groups.length; i++) {
+		const group = filtered_local_display_groups[i];
+		if (db_display_group_ids.includes(group.id)) {
+			await db.display_groups.update(group.id, { position: i });
+		} else {
+			await db.display_groups.put({
+				id: group.id,
+				position: i
+			});
+		}
+
+		for (let j = 0; j < group.displays.length; j++) {
+			const display_id = group.displays[j].id;
+			await db.displays.update(display_id, { position: j, group_id: group.id });
+		}
+	}
+}
+
+export function set_new_display_order(display_id_group_id: string, new_data: DisplayIdObject[]) {
+	local_displays.update((local_displays: DisplayIdGroup[]) => {
+		for (const display_id_group of local_displays) {
+			if (display_id_group.id === display_id_group_id) {
+				display_id_group.displays = new_data;
+			}
+		}
+		return local_displays;
+	});
+}
+
+if (dev) {
+	setTimeout(add_testing_displays, 0);
+	async function add_testing_displays() {
+		await add_display('127.0.0.1', '00:1A:2B:3C:4D:5E', 'PC', 'host_offline');
+		// await add_display("192.168.178.111", "D4:81:D7:C0:DF:3C", "Laptop", "host_offline");
+	}
+}

control/frontend/src/lib/ts/stores/files.ts

@@ -0,0 +1,445 @@
+import { get, writable, type Writable } from 'svelte/store';
+import {
+	get_file_primary_key,
+	type Display,
+	type FileOnDisplay,
+	type Inode,
+	type TreeElement
+} from '../types';
+import { get_display_by_id } from './displays';
+import { is_selected, select, selected_display_ids, selected_file_ids } from './select';
+import { create_path, get_file_data, get_file_tree_data } from '../api_handler';
+import { deactivate_old_thumbnail_urls, generate_thumbnail } from './thumbnails';
+import { db } from '../database';
+
+export const current_file_path: Writable<string> = writable<string>('/');
+
+export async function change_file_path(new_path: string) {
+	current_file_path.update(() => {
+		return new_path;
+	});
+	selected_file_ids.update(() => {
+		return [];
+	});
+
+	deactivate_old_thumbnail_urls();
+
+	const displays = await db.displays.toArray();
+
+	for (const display of displays) {
+		const changed_paths = await get_changed_directory_paths(display, new_path);
+		if (!changed_paths) continue;
+		console.debug('Update file system from', display.name, ':', changed_paths);
+		for (const path of changed_paths) {
+			await update_folder_elements_recursively(display, path);
+		}
+	}
+}
+
+export async function delete_and_deselect_unique_files_from_display(display_id: string) {
+	const files_on_display = await db.files_on_display
+		.where('display_id')
+		.equals(display_id)
+		.toArray();
+	for (const file of files_on_display) {
+		await remove_file_from_display_recusively(display_id, file.file_primary_key);
+	}
+	await remove_all_files_without_display();
+}
+
+export async function remove_file_from_display_recusively(
+	display_id: string,
+	file_primary_key: string
+) {
+	const found = await db.files_on_display.get([display_id, file_primary_key]);
+	if (!found) return;
+	select(selected_file_ids, file_primary_key, 'deselect');
+	await db.files_on_display.delete([display_id, file_primary_key]);
+
+	const inode_element = await get_file_by_id(found.file_primary_key);
+	if (!inode_element) return;
+	if (inode_element.type === 'inode/directory') {
+		const path_inside_folder = inode_element.path + inode_element.name + `/`;
+		const primary_file_keys_in_folder = (
+			await db.files.where('path').equals(path_inside_folder).toArray()
+		).map((e) => get_file_primary_key(e));
+		const primary_file_keys_in_folder_on_display = (
+			await db.files_on_display
+				.where('file_primary_key')
+				.anyOf(primary_file_keys_in_folder)
+				.filter((file) => file.display_id === display_id)
+				.toArray()
+		).map((e) => e.file_primary_key);
+		for (const file_key of primary_file_keys_in_folder_on_display) {
+			await remove_file_from_display_recusively(display_id, file_key);
+		}
+	}
+}
+
+export async function remove_all_files_without_display() {
+	const existing_file_id_strings: string[] = (await db.files_on_display
+		.orderBy('file_primary_key')
+		.uniqueKeys()) as string[];
+	const existing_file_id_objects: [string, string, number, string][] = existing_file_id_strings.map(
+		(e) => JSON.parse(e) as [string, string, number, string]
+	);
+	await db.files.where('[path+name+size+type]').noneOf(existing_file_id_objects).delete();
+}
+
+export async function update_current_folder_on_selected_displays() {
+	selected_file_ids.update(() => {
+		return [];
+	});
+	const current_path = get(current_file_path);
+
+	for (const display of await db.displays.where('id').anyOf(get(selected_display_ids)).toArray()) {
+		await update_folder_elements_recursively(display, current_path);
+	}
+}
+
+export async function get_missing_colliding_display_ids(
+	file: Inode,
+	selected_display_ids: string[]
+): Promise<{ missing: string[]; colliding: string[] }> {
+	const missing: string[] = await get_display_ids_where_file_is_missing(file, selected_display_ids);
+
+	const colliding: string[] = [];
+	const colliding_files = await db.files
+		.where('[path+name]')
+		.equals([file.path, file.name])
+		.filter((e) => e.size !== file.size || e.type !== file.type)
+		.toArray();
+	for (const colliding_file of colliding_files) {
+		colliding.push(
+			...(await get_display_ids_where_file_is_missing(colliding_file, selected_display_ids))
+		);
+	}
+
+	return { missing, colliding };
+}
+
+async function get_display_ids_where_file_is_missing(
+	file: Inode,
+	selected_display_ids: string[]
+): Promise<string[]> {
+	const file_primary_key = get_file_primary_key(file);
+	const files_on_selected_displays = await db.files_on_display
+		.where('file_primary_key')
+		.equals(file_primary_key)
+		.filter((e) => selected_display_ids.includes(e.display_id))
+		.toArray();
+	return selected_display_ids.filter(
+		(id) => !files_on_selected_displays.some((item) => item.display_id === id)
+	);
+}
+
+export async function get_displays_where_path_not_exists(
+	path: string,
+	selected_display_ids: string[]
+): Promise<Display[]> {
+	if (path === '/') return await db.displays.where('id').anyOf(selected_display_ids).toArray();
+	const last_path_part =
+		path
+			.slice(0, path.length - 1)
+			.split('/')
+			.at(-1) ?? '';
+	const path_without_last_part = path.slice(0, path.length - (last_path_part.length + 1));
+
+	const folders_of_current_path = await db.files
+		.where('name')
+		.equals(last_path_part)
+		.filter((inode) => inode.path === path_without_last_part && inode.type === 'inode/directory')
+		.first();
+	if (!folders_of_current_path) return [];
+	const folder_primary_key = get_file_primary_key(folders_of_current_path);
+
+	const display_ids_with_folder = (
+		await db.files_on_display.where('file_primary_key').equals(folder_primary_key).toArray()
+	).map((fod) => fod.display_id);
+
+	const display_ids = selected_display_ids.filter((display_id) => {
+		return !display_ids_with_folder.includes(display_id);
+	});
+
+	return (await db.displays.bulkGet(display_ids)).filter((e) => e !== undefined);
+}
+
+async function get_changed_directory_paths(
+	display: Display,
+	file_path: string
+): Promise<string[] | null> {
+	const current_folder = await get_file_tree_data(display.ip, file_path);
+	const directory_strings = await get_recursive_changed_directory_paths(
+		display,
+		file_path,
+		current_folder
+	);
+	if (directory_strings.size === 0) return null;
+	const directory_strings_array = [...directory_strings];
+	return directory_strings_array.filter(
+		(e) => !directory_strings_array.some((f) => f !== e && f.startsWith(e))
+	);
+}
+
+async function get_recursive_changed_directory_paths(
+	display: Display,
+	current_file_path: string,
+	current_folder_elements: TreeElement[] | null
+): Promise<Set<string>> {
+	const files_folder: Inode[] = await db.files.where('path').equals(current_file_path).toArray();
+	if (
+		(!files_folder || files_folder.length === 0) &&
+		(!current_folder_elements || current_folder_elements.length === 0)
+	) {
+		return new Set([]); // no data -> no update needed
+	} else if (
+		!files_folder ||
+		!current_folder_elements ||
+		current_folder_elements.length !== files_folder.length
+	) {
+		return new Set([current_file_path]); // existing data does not match new data -> update
+	}
+
+	const has_changed: Set<string> = new Set();
+	for (const tree_folder_element of current_folder_elements) {
+		const folder_element = files_folder.find((e) => e.name === tree_folder_element.name);
+		if (
+			!folder_element ||
+			(tree_folder_element.type !== 'directory' && folder_element.size !== tree_folder_element.size)
+		) {
+			return new Set([current_file_path]);
+		}
+
+		if (tree_folder_element.type === 'directory' && tree_folder_element.contents) {
+			const new_file_path = current_file_path + tree_folder_element.name + '/';
+			for (const string of await get_recursive_changed_directory_paths(
+				display,
+				new_file_path,
+				tree_folder_element.contents
+			)) {
+				has_changed.add(string);
+			}
+		}
+	}
+	return has_changed;
+}
+
+export async function update_folder_elements_recursively(
+	display: Display,
+	file_path: string = '/'
+): Promise<void> {
+	const new_folder_elements = await get_file_data(display.ip, file_path);
+	if (!new_folder_elements) return;
+
+	const existing_files_on_display_in_path: FileOnDisplay[] = await db.files_on_display
+		.where('display_id')
+		.equals(display.id)
+		.toArray();
+	const existing_file_keys_on_display_in_path: [string, string, number, string][] =
+		existing_files_on_display_in_path.map(
+			(e) => JSON.parse(e.file_primary_key) as [string, string, number, string]
+		);
+	const existing_files: Inode[] = await db.files
+		.where('[path+name+size+type]')
+		.anyOf(existing_file_keys_on_display_in_path)
+		.filter((e) => e.path === file_path)
+		.toArray();
+
+	const existing_files_with_loading_state: { folder_element: Inode; is_loading: boolean }[] =
+		existing_files.map((folder_element) => ({
+			folder_element,
+			is_loading: !!existing_files_on_display_in_path.find(
+				(e) => e.file_primary_key === get_file_primary_key(folder_element)
+			)?.loading_data
+		}));
+
+	const diff = get_folder_elements_difference(
+		existing_files_with_loading_state,
+		new_folder_elements
+	);
+
+	if (diff.new.length > 0) {
+		// Add new Folder-Elements
+		for (const new_element of diff.new) {
+			await db.files.put(new_element.folder_element);
+			const file_on_display: FileOnDisplay = {
+				display_id: display.id,
+				file_primary_key: get_file_primary_key(new_element.folder_element),
+				loading_data: null,
+				date_created: new_element.date_created
+			};
+			await db.files_on_display.put(file_on_display);
+
+			if (new_element.folder_element.type === 'inode/directory') {
+				await update_folder_elements_recursively(
+					display,
+					file_path + new_element.folder_element.name + '/'
+				);
+			}
+		}
+
+		// Generate Thumbnails:
+		setTimeout(async () => {
+			for (const new_element of diff.new) {
+				await generate_thumbnail(display.ip, file_path, new_element.folder_element);
+			}
+		}, 0);
+	}
+	if (diff.deleted.length > 0) {
+		// Remove old Folder-Elements
+		for (const old_element of diff.deleted) {
+			remove_file_from_display_recusively(display.id, get_file_primary_key(old_element));
+		}
+		await remove_all_files_without_display();
+	}
+}
+
+function get_folder_elements_difference(
+	old_elements: { folder_element: Inode; is_loading: boolean }[],
+	new_elements: { folder_element: Inode; date_created: Date }[]
+): { deleted: Inode[]; new: { folder_element: Inode; date_created: Date }[] } {
+	const old_keys = new Set(old_elements.map((e) => get_file_primary_key(e.folder_element)));
+	const new_keys = new Set(new_elements.map((e) => get_file_primary_key(e.folder_element)));
+
+	const only_in_old = old_elements
+		.filter((e) => !new_keys.has(get_file_primary_key(e.folder_element)) && !e.is_loading)
+		.map((e) => e.folder_element);
+	const only_in_new = new_elements.filter(
+		(e) => !old_keys.has(get_file_primary_key(e.folder_element))
+	);
+	return { deleted: only_in_old, new: only_in_new };
+}
+
+export async function get_folder_elements(
+	file_path: string,
+	selected_display_ids: string[]
+): Promise<Inode[]> {
+	const existing_file_keys_on_selected_displays: [string, string, number, string][] = (
+		await db.files_on_display.where('display_id').anyOf(selected_display_ids).toArray()
+	).map((e) => JSON.parse(e.file_primary_key) as [string, string, number, string]);
+	const existing_files_on_selected_displays_in_path: Inode[] = await db.files
+		.where('[path+name+size+type]')
+		.anyOf(existing_file_keys_on_selected_displays)
+		.filter((e) => e.path === file_path)
+		.toArray();
+
+	return sort_files(existing_files_on_selected_displays_in_path);
+}
+
+function sort_files(files: Inode[]) {
+	files.sort((a, b) => {
+		const isDirA = a.type === 'inode/directory';
+		const isDirB = b.type === 'inode/directory';
+
+		// Ordner zuerst
+		if (isDirA && !isDirB) return -1;
+		if (!isDirA && isDirB) return 1;
+
+		// Danach alphabetisch nach name (case-insensitive)
+		const nameCompare = a.name.localeCompare(b.name, undefined, { sensitivity: 'base' });
+		if (nameCompare !== 0) return nameCompare;
+
+		return -1;
+	});
+	return files;
+}
+
+export async function get_file_by_id(
+	file_primary_key: string,
+	only_from_selected_displays: boolean = false
+): Promise<Inode | null> {
+	const file = (await db.files.get(JSON.parse(file_primary_key))) ?? null;
+	if (!file || !only_from_selected_displays) {
+		return file;
+	} else {
+		const exist_on_selected_display = !!(await db.files_on_display
+			.where('file_primary_key')
+			.equals(file_primary_key)
+			.filter((e) => get(selected_display_ids).includes(e.display_id))
+			.first());
+		return exist_on_selected_display ? file : null;
+	}
+}
+
+export async function run_for_selected_files_on_selected_displays(
+	action: (ip: string, file_names: string[]) => Promise<void>
+): Promise<void> {
+	for (const display_id of get(selected_display_ids)) {
+		const file_key_strings_on_display: string[] = (
+			await db.files_on_display.where('display_id').equals(display_id).toArray()
+		).map((e) => e.file_primary_key);
+
+		const selected_file_keys_on_display: [string, string, number, string][] =
+			file_key_strings_on_display
+				.filter((primary_key_string) => is_selected(primary_key_string, get(selected_file_ids)))
+				.map(
+					(primary_key_string) => JSON.parse(primary_key_string) as [string, string, number, string]
+				);
+		if (selected_file_keys_on_display.length === 0) continue;
+
+		const selected_file_names_on_display: string[] = (
+			await db.files.where('[path+name+size+type]').anyOf(selected_file_keys_on_display).toArray()
+		).map((e) => e.name);
+
+		const display = await get_display_by_id(display_id);
+		if (!display) continue;
+
+		await action(display.ip, selected_file_names_on_display);
+	}
+}
+
+export async function create_folder_on_all_selected_displays(
+	folder_name: string,
+	path: string,
+	selected_display_ids: string[]
+): Promise<void> {
+	const path_with_folder_name = (path += folder_name + '/');
+	await create_path_on_all_selected_displays(path_with_folder_name, selected_display_ids);
+}
+
+export async function create_path_on_all_selected_displays(
+	path: string,
+	selected_display_ids: string[]
+) {
+	const displays_without_path = await get_displays_where_path_not_exists(
+		path,
+		selected_display_ids
+	);
+	if (displays_without_path.length === 0) return;
+	for (const display of displays_without_path) {
+		await create_path(display.ip, path);
+	}
+	setTimeout(async () => {
+		for (const display of displays_without_path) {
+			const changed_paths = await get_changed_directory_paths(display, '/');
+			if (!changed_paths) continue;
+			console.debug('Update file system from', display.name, ':', changed_paths);
+			for (const path of changed_paths) {
+				await update_folder_elements_recursively(display, path);
+			}
+		}
+	}, 0);
+}
+
+export async function get_date_mapping(file_primary_key: string): Promise<Record<string, Date>> {
+	const same_file_on_displays: FileOnDisplay[] = await db.files_on_display
+		.where('file_primary_key')
+		.equals(file_primary_key)
+		.toArray();
+	const displays_with_that_file: Display[] = await db.displays
+		.where('id')
+		.anyOf(same_file_on_displays.map((e) => e.display_id))
+		.toArray();
+
+	const out: Record<string, Date> = {};
+	for (const current_file_on_display of same_file_on_displays) {
+		const current_name = displays_with_that_file.find(
+			(e) => e.id === current_file_on_display.display_id
+		)?.name;
+		if (!current_name) continue;
+		const current_date = current_file_on_display.date_created;
+		out[current_name] = current_date;
+	}
+
+	return out;
+}

control/frontend/src/lib/ts/stores/notification.ts

@@ -1,4 +1,4 @@
-import { get, writable } from "svelte/store";
+import { writable } from "svelte/store";
 
 export type Notification = {
   id: number;
@@ -14,7 +14,7 @@ function createNotifications() {
 
   function push(type: "error" | "success" | "info", title: string, message: string = "", className: string = "") {
     const id = Date.now();
-    const duration = type === "error" ? 8000 : 4000;
+    const duration = type === "error" ? 16000 : 4000;
     update((n) => [...n, { id, title, message, duration, className, type }]);
     setTimeout(() => {
       update((n) => n.filter((x) => x.id !== id));

control/frontend/src/lib/ts/stores/select.ts

@@ -0,0 +1,26 @@
+import { writable, type Writable } from 'svelte/store';
+
+export const selected_file_ids: Writable<string[]> = writable<string[]>([]); // JSON.stringify([string, string, number, string])
+export const selected_display_ids: Writable<string[]> = writable<string[]>([]);
+
+export function select(
+	selected_ids: Writable<string[]>,
+	id: string,
+	action: 'toggle' | 'select' | 'deselect'
+) {
+	selected_ids.update((all_ids: string[]) => {
+		if (all_ids.includes(id)) {
+			const index = all_ids.indexOf(id);
+			if (index > -1 && action !== 'select') {
+				all_ids.splice(index, 1);
+			}
+		} else if (action !== 'deselect') {
+			all_ids.push(id);
+		}
+		return all_ids;
+	});
+}
+
+export function is_selected(id: string, selected_ids: string[]): boolean {
+	return selected_ids.includes(id);
+}

control/frontend/src/lib/ts/stores/thumbnails.ts

@@ -0,0 +1,45 @@
+import { get, writable, type Writable } from 'svelte/store';
+import { get_thumbnail_blob } from '../api_handler';
+import { type Inode } from '../types';
+import { db } from '../database';
+import { get_file_type } from '../utils';
+import { get_file_by_id } from './files';
+
+export const active_thumbnail_urls: Writable<string[]> = writable<string[]>([]);
+
+export async function generate_thumbnail(
+	display_ip: string,
+	path: string,
+	folder_element: Inode
+): Promise<void> {
+	const supported_file_type = get_file_type(folder_element);
+	if (!supported_file_type) return;
+
+	const thumbnail_blob = await get_thumbnail_blob(display_ip, path + folder_element.name);
+	if (!thumbnail_blob) return;
+
+	folder_element.thumbnail = thumbnail_blob;
+
+	await db.files.put(folder_element); // save
+}
+
+export async function get_thumbnail_url(file_primary_key: string): Promise<string | null> {
+	const file: Inode | null = await get_file_by_id(file_primary_key);
+	if (!file || !file.thumbnail) return null;
+	const new_url = URL.createObjectURL(file.thumbnail);
+	active_thumbnail_urls.update((current: string[]) => {
+		current.push(new_url);
+		return current;
+	});
+	return new_url;
+}
+
+export function deactivate_old_thumbnail_urls() {
+	const current_urls = get(active_thumbnail_urls);
+	for (const url of current_urls) {
+		URL.revokeObjectURL(url);
+	}
+	active_thumbnail_urls.update(() => {
+		return [];
+	});
+}

control/frontend/src/lib/ts/stores/ui_behavior.ts

@@ -0,0 +1,96 @@
+import { writable, type Writable } from 'svelte/store';
+import type { NumberSetting } from '../types';
+
+export const dnd_flip_duration_ms = 300;
+
+const heights_options: Record<string, { min: number; max: number; step: number }> = {
+	display: {
+		min: 15,
+		max: 40,
+		step: 5
+	},
+	file: {
+		min: 10,
+		max: 20,
+		step: 5
+	}
+};
+
+export const current_height: Writable<Record<string, number>> = writable<Record<string, number>>({
+	display: 25,
+	file: 10
+});
+
+export const is_group_drag: Writable<boolean> = writable<boolean>(false);
+export const is_display_drag: Writable<boolean> = writable<boolean>(false);
+
+export const preview_settings: Writable<{
+	mode: 'never' | 'normal' | 'always';
+	retry_seconds: NumberSetting;
+	retry_count: NumberSetting;
+}> = writable<{
+	mode: 'never' | 'normal' | 'always';
+	retry_seconds: NumberSetting;
+	retry_count: NumberSetting;
+}>({
+	mode: 'normal',
+	retry_seconds: {
+		max: 10,
+		min: 0.5,
+		now: 2,
+		step: 0.5
+	},
+	retry_count: {
+		max: 10,
+		min: 1,
+		now: 5,
+		step: 1
+	}
+});
+
+export const pinned_display_id: Writable<string | null> = writable<string | null>(null);
+
+export function change_height(key: 'display' | 'file', factor: number) {
+	current_height.update((height) => {
+		height[key] = next_height_step_size(key, height, factor) || height[key];
+		return height;
+	});
+}
+
+export function next_height_step_size(
+	key: 'display' | 'file',
+	current_height_array: Record<string, number>,
+	factor: number
+): number {
+	const new_size = current_height_array[key] + factor * heights_options[key].step;
+	if (new_size > heights_options[key].max || new_size < heights_options[key].min) {
+		return 0;
+	} else {
+		return new_size;
+	}
+}
+
+export function get_selectable_color_classes(
+	selected: boolean,
+	returning_classes: { bg?: boolean; hover?: boolean; active?: boolean; text?: boolean } = {},
+	base_bg_distance: number = 0,
+	shifted_distance: number = 0
+) {
+	let base_bg = selected ? 'bg-stone-400' : 'bg-stone-600';
+	const base_text = selected ? 'text-stone-950' : 'text-stone-200';
+	base_bg = get_shifted_color(base_bg, base_bg_distance);
+
+	const { bg = false, hover = false, active = false, text = false } = returning_classes;
+
+	const out: string[] = [];
+	if (bg) out.push(base_bg);
+	if (hover) out.push('hover:' + get_shifted_color(base_bg, 100 + shifted_distance));
+	if (active) out.push('active:' + get_shifted_color(base_bg, 150 + shifted_distance));
+	if (text) out.push(base_text);
+
+	return out.join(' ');
+}
+
+export function get_shifted_color(base_color: string, distance: number): string {
+	return base_color.replace(/(\d+)(?=(?:\/\d+)?$)/, (m: string) => String(+Number(m) - distance));
+}

control/frontend/src/lib/ts/types.ts

@@ -0,0 +1,157 @@
+import { FileBox, FileImage, FileText, FileVideoCamera, ImagePlay, type X } from 'lucide-svelte';
+import type { Snippet } from 'svelte';
+
+export type RequestResponse = {
+	ok: boolean;
+	http_code?: number;
+	blob?: Blob;
+	json?: Record<string, unknown>;
+};
+
+export type ShellCommandResponse = {
+	stdout: string;
+	stderr: string;
+	exitCode: number;
+};
+
+export type SupportedFileType = {
+	display_name: string;
+	mime_type: string;
+};
+export const supported_file_type_icon: Record<string, typeof X> = {
+	MP4: FileVideoCamera,
+	JPG: FileImage,
+	PNG: FileImage,
+	GIF: ImagePlay,
+	PPTX: FileBox,
+	ODP: FileBox,
+	PDF: FileText
+};
+
+export type FileTransferTask = {
+	data: FileTransferTaskData;
+	display: ShortDisplay;
+	path: string;
+	file_name: string;
+	file_primary_key: string;
+	bytes_total: number; // if type === 'sync' -> bytes_total = file_size * 2 (1x download + 1x upload)
+};
+
+export type FileTransferTaskData =
+	| {
+			type: 'upload';
+			file: File;
+	  }
+	| {
+			type: 'sync';
+			destination_displays: ShortDisplay[];
+	  };
+
+export type ShortDisplay = {
+	id: string;
+	ip: string;
+};
+
+export type FileOnDisplay = {
+	display_id: string;
+	file_primary_key: string; // JSON.stringify([string, string, number, string])
+	date_created: Date;
+	loading_data: FileLoadingData | null; // null if not loading
+};
+
+export type FileLoadingData = {
+	type: 'upload' | 'download' | 'sync_download' | 'sync_upload';
+	percentage: number;
+	bytes_per_second: number;
+	seconds_until_finish: number;
+};
+
+export type CompleteFileLoadingData = {
+	is_loading: boolean;
+	total_percentage: number;
+	total_seconds_until_finish: number;
+	display_data: { loading_data: FileLoadingData; display_name: string }[];
+};
+
+export type Inode = {
+	path: string;
+	name: string;
+	size: number;
+	type: string;
+	thumbnail: Blob | null;
+};
+
+export function get_file_primary_key(file: Inode): string {
+	return JSON.stringify([file.path, file.name, file.size, file.type]);
+}
+
+export type TreeElement = {
+	contents?: TreeElement[];
+	type: 'file' | 'directory';
+	name: string;
+	size: number;
+};
+
+export type Display = {
+	id: string;
+	ip: string;
+	mac: string | null;
+	position: number;
+	preview: PreviewObject;
+	group_id: string;
+	name: string;
+	status: DisplayStatus;
+};
+
+export type DisplayGroup = {
+	id: string;
+	position: number;
+};
+
+export type DisplayIdGroup = {
+	id: string;
+	displays: DisplayIdObject[];
+};
+
+export type DisplayIdObject = {
+	id: string;
+};
+
+export type PreviewObject = {
+	currently_updating: boolean;
+	url: string | null;
+};
+
+export type MenuOption = {
+	icon?: typeof X;
+	name: string;
+	class?: string;
+	on_select?: () => void | Promise<void>;
+	disabled?: boolean;
+};
+
+export type PopupContent = {
+	open: boolean;
+	snippet: Snippet<[string]> | null;
+	snippet_arg?: string;
+	title?: string;
+	title_class?: string;
+	title_icon?: typeof X | null;
+	window_class?: string;
+	closable?: boolean;
+};
+
+export type NumberSetting = {
+	max: number,
+	min: number,
+	now: number,
+	step: number
+}
+
+export type DisplayStatus = 'host_offline' | 'app_offline' | 'app_online' | null;
+
+export function to_display_status(value: string): DisplayStatus {
+	return ['host_offline', 'app_offline', 'app_online'].includes(value)
+		? (value as DisplayStatus)
+		: null;
+}

control/frontend/src/lib/ts/utils.ts

@@ -0,0 +1,115 @@
+import type { DisplayStatus, Inode, SupportedFileType } from './types';
+import supported_file_types_json from './../../../../../shared/supported_file_types.json';
+
+const supported_file_types: Record<string, SupportedFileType> = supported_file_types_json as Record<
+	string,
+	SupportedFileType
+>;
+
+const invalid_first_regex = /^[^a-zA-ZäöüßÄÖÜ0-9_]/u;
+const invalid_rest_regex = /[^a-zA-ZäöüßÄÖÜ0-9 _\-()$${}.,+$€!=/]/gu;
+
+export function is_valid_name(input: string): boolean {
+	return !invalid_rest_regex.test(input) && first_letter_is_valid(input);
+}
+
+export function first_letter_is_valid(input: string): boolean {
+	if (input.length === 0) return false;
+	return !invalid_first_regex.test(input);
+}
+
+export function make_valid_name(input: string): string {
+	const s = input.normalize('NFC');
+	if (s.length === 0) return 'Datei';
+	let out = s.replace(invalid_rest_regex, '_');
+	out = out.replace(invalid_first_regex, '_');
+
+	return out;
+}
+
+export function get_file_type(file: Inode): SupportedFileType | null {
+	for (const key of Object.keys(supported_file_types)) {
+		if (file.type === supported_file_types[key].mime_type) {
+			return supported_file_types[key];
+		}
+	}
+	// Fallback:
+	const extension = file.name.split('.').pop();
+	if (extension) {
+		if (Object.keys(supported_file_types).includes('.' + extension)) {
+			return supported_file_types['.' + extension];
+		}
+	}
+	return null;
+}
+
+export function get_accepted_file_type_string(): string {
+	return Object.values(supported_file_types)
+		.map((e) => e.mime_type)
+		.join(',');
+}
+
+export function get_uuid(): string {
+	return crypto.randomUUID();
+}
+
+export function get_file_size_display_string(size: number, toFixed: number | null = null): string {
+	if (size < 0)
+		return toFixed === null ? 'versch.' : 'Verschiedene Größen auf verschiedenen Bildschirmen';
+	if (size === 0) return '0 B';
+
+	const k = 1024;
+	const sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
+
+	const i = Math.floor(Math.log(size) / Math.log(k));
+	const value = size / Math.pow(k, i);
+
+	const size_string = `${value.toFixed(toFixed !== null ? toFixed : Math.max(0, 2 - Math.floor(Math.log10(value))))} ${sizes[i]}`;
+
+	return size_string.replace('.', ',');
+}
+
+export async function image_content_hash(blob: Blob, size = 32): Promise<number> {
+	// Blob → ImageBitmap (GPU-dekodiert, superschnell)
+	const bitmap = await createImageBitmap(blob);
+
+	// OffscreenCanvas ist sehr schnell (kein Layout nötig)
+	const canvas = new OffscreenCanvas(size, size);
+	const ctx = canvas.getContext('2d')!;
+	ctx.drawImage(bitmap, 0, 0, size, size);
+
+	// Pixel-Daten holen
+	const { data } = ctx.getImageData(0, 0, size, size);
+
+	// Einfacher, schneller Integer-Hash (FNV-1a)
+	let hash = 2166136261;
+	for (let i = 0; i < data.length; i++) {
+		hash ^= data[i];
+		hash = Math.imul(hash, 16777619);
+	}
+
+	bitmap.close(); // GPU-Ressourcen freigeben
+	return hash >>> 0; // unsigned int
+}
+
+export function display_status_to_info(status: DisplayStatus): string {
+	switch (status) {
+		case 'app_online':
+			return 'Online';
+		case 'app_offline':
+			return 'Lädt';
+		case 'host_offline':
+			return 'Offline';
+		case null:
+			return '???';
+	}
+}
+
+export function get_sanitized_file_url(file_path: string, is_preview = false) {
+	const pathSegments = file_path
+		.split('/')
+		.filter(Boolean)
+		.map((seg) => encodeURIComponent(seg));
+
+	return `/file/${is_preview ? 'preview/' : ''}${[...pathSegments].join('/')}`;
+}

control/frontend/src/routes/+layout.svelte

@@ -1,10 +1,29 @@
 <script lang="ts">
 	import '../app.css';
-	import Notification from '../components/Notification.svelte';
+	import Notification from './Notification.svelte';
+	import SplashScreen from './../../../../shared/splash_screen.html?raw';
+	import version from './../../../../shared/version.txt?raw';
+	import { dev } from '$app/environment';
 
 	let { children } = $props();
+
+	let versionSplashScreen = SplashScreen.replaceAll('%%APP-VERSION%%', version.trim());
 </script>
 
+<svelte:head>
+	<title>PLG MuDiCS Control</title>
+</svelte:head>
+
+{#if !dev}
+	{@html versionSplashScreen}
+{/if}
+
 {@render children()}
 
-<Notification />
+<Notification />
+
+<style>
+	:root {
+		--splash-fade-out-delay: 3.5s !important;
+	}
+</style>

control/frontend/src/routes/+layout.ts

@@ -1 +1,2 @@
 export const prerender = true;
+export const ssr = false;

control/frontend/src/routes/+page.svelte

@@ -1,26 +1,40 @@
 <script lang="ts">
-	import { Monitor, Plus, Radio, Settings, Trash2, X } from 'lucide-svelte';
+	import {
-	import Button from '../components/Button.svelte';
+		Monitor,
-	import FileView from '../components/FileView.svelte';
+		Plus,
-	import ControlView from '../components/ControlView.svelte';
+		Radio,
-	import DisplayView from '../components/DisplayView.svelte';
+		Settings,
-	import SplashScreen from './../../../../shared/splash_screen.html?raw';
+		Trash2,
-	import PopUp from '../components/PopUp.svelte';
+		Menu,
-	import { display_status_to_info, type PopupContent } from '../ts/types';
+		ChevronDown,
-	import TextInput from '../components/TextInput.svelte';
+		icons,
+		SquareCheckBig,
+		Square,
+		X,
+		Info
+	} from 'lucide-svelte';
+	import Button from '$lib/components/Button.svelte';
+	import FileView from './FileView.svelte';
+	import ControlView from './ControlView.svelte';
+	import DisplayView from './DisplayView.svelte';
+	import PopUp from '$lib/components/PopUp.svelte';
+	import { type Display, type PopupContent } from '$lib/ts/types';
+	import TextInput from '$lib/components/TextInput.svelte';
 	import {
 		add_display,
-		displays,
 		edit_display_data,
 		get_display_by_id,
 		is_display_name_taken,
 		remove_display
-	} from '../ts/stores/displays';
+	} from '$lib/ts/stores/displays';
-	import { text } from '@sveltejs/kit';
+	import { notifications } from '$lib/ts/stores/notification';
-	import { notifications } from '../ts/stores/notification';
+	import { ping_ip } from '$lib/ts/api_handler';
-	import { ping_ip } from '../ts/api_handler';
 	import { onMount } from 'svelte';
-	import { on_start } from '../ts/main';
+	import { on_app_start, update_display_status } from '$lib/ts/main';
+	import { display_status_to_info } from '$lib/ts/utils';
+	import HighlightedText from '$lib/components/HighlightedText.svelte';
+	import { preview_settings } from '$lib/ts/stores/ui_behavior';
+	import NumberSettingInput from '$lib/components/NumberSettingInput.svelte';
 
 	const ip_regex =
 		/^(?:(?:10|127)\.(?:25[0-5]|2[0-4]\d|1?\d?\d)\.(?:25[0-5]|2[0-4]\d|1?\d?\d)\.(?:25[0-5]|2[0-4]\d|1?\d?\d)|192\.168\.(?:25[0-5]|2[0-4]\d|1?\d?\d)\.(?:25[0-5]|2[0-4]\d|1?\d?\d)|172\.(?:1[6-9]|2\d|3[0-1])\.(?:25[0-5]|2[0-4]\d|1?\d?\d)\.(?:25[0-5]|2[0-4]\d|1?\d?\d))$/;
@@ -30,8 +44,10 @@
 		open: false,
 		snippet: null,
 		title: '',
+		title_class: '!text-xl',
 		closable: true
 	});
+	let remove_display_name = $state('');
 
 	const text_inputs_valid_null_values = {
 		name: { valid: false, value: '' },
@@ -50,16 +66,31 @@
 	}
 
 	async function finalize_add_edit_display(existing_display_id: string | null) {
+		popup_close_function();
 		const ip = text_inputs_valid.ip.value;
 		const mac = text_inputs_valid.mac.value === '' ? null : text_inputs_valid.mac.value;
 		const name = text_inputs_valid.name.value;
+		let display: Display | null = null;
 		if (!!existing_display_id) {
-			edit_display_data(existing_display_id, ip, mac, name);
+			display = await edit_display_data(existing_display_id, ip, mac, name);
 		} else {
 			const status = await ping_ip(text_inputs_valid.ip.value);
-			add_display(ip, mac, name, status);
+			display = await add_display(ip, mac, name, status);
+		}
+		if (!!display) {
+			await update_display_status(display);
+		}
+	}
+
+	function get_display_preview_mode(mode: 'never' | 'normal' | 'always') {
+		switch (mode) {
+			case 'never':
+				return 'Nie';
+			case 'normal':
+				return 'Normal';
+			case 'always':
+				return 'Dauerhaft';
 		}
-		popup_close_function();
 	}
 
 	function popup_close_function() {
@@ -70,27 +101,42 @@
 		text_inputs_valid = text_inputs_valid_null_values;
 		popup_content = {
 			open: true,
-			snippet: add_new_display_popup,
+			snippet: display_popup,
 			title: 'Neuen Bildschirm hinzufügen',
 			title_icon: Monitor,
+			title_class: '!text-xl',
+			window_class: 'w-3xl',
 			closable: true
 		};
 	};
 
-	const show_remove_display_popup = (display_id: string) => {
+	const show_settings_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: settings_popup,
+			title: 'Einstellungen',
+			title_icon: Settings,
+			title_class: '!text-xl',
+			window_class: 'w-3xl',
+			closable: true
+		};
+	};
+
+	const show_remove_display_popup = async (display_id: string) => {
+		remove_display_name = (await get_display_by_id(display_id))?.name || '?';
 		popup_content = {
 			open: true,
 			snippet: remove_display_popup,
 			snippet_arg: display_id,
 			title: 'Bildschirm wirklich löschen?',
-			title_class: 'text-red-400',
+			title_class: 'text-red-400 !text-xl',
 			title_icon: Trash2,
 			closable: true
 		};
 	};
 
-	const show_edit_display_popup = (display_id: string) => {
+	const show_edit_display_popup = async (display_id: string) => {
-		const display = get_display_by_id(display_id, $displays);
+		const display = await get_display_by_id(display_id);
 		if (!display) return;
 		// insert existing values in text_inputs_valid
 		for (const key of Object.keys(text_inputs_valid) as (keyof typeof text_inputs_valid)[]) {
@@ -99,54 +145,109 @@
 		}
 		popup_content = {
 			open: true,
-			snippet: add_new_display_popup,
+			snippet: display_popup,
 			snippet_arg: display_id,
 			title: 'Bildschirm bearbeiten',
 			title_icon: Monitor,
+			title_class: '!text-xl',
 			closable: true
 		};
 	};
 
-	onMount(() => {
+	onMount(on_app_start);
-		on_start();
+
-	});
+	const show_about_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: about_popup,
+			title: 'Über PLG MuDiCS',
+			title_icon: Info,
+			title_class: '!text-xl',
+			closable: true
+		};
+	};
 </script>
 
+{#snippet about_popup(_: string)}
+	<div class="px-2">
+		<h3 class="text-lg font-bold mt-4">Entwickler</h3>
+		<p>
+			<a target="_blank" class="link" href="https://github.com/programmer-44">E44</a>
+			<a target="_blank" class="link" href="https://codeberg.org/2mal3">2mal3</a>,
+		</p>
+
+		<h3 class="text-lg font-bold mt-4">Lizenz</h3>
+		<a
+			target="_blank"
+			class="link"
+			href="https://github.com/PLG-Development/PLG-MuDiCS/blob/main/LICENSE.txt"
+		>
+			GNU Affero General Public License v3 (AGPL-3.0)
+		</a>
+
+		<h3 class="text-lg font-bold mt-4">Verwendete Bibliotheken</h3>
+		<ul class="list-disc list-inside">
+			<li><a target="_blank" href="https://svelte.dev/" class="link">Svelte & SvelteKit</a></li>
+			<li><a target="_blank" href="https://tailwindcss.com/" class="link">TailwindCSS</a></li>
+			<li><a target="_blank" href="https://lucide.dev/" class="link">Lucide Icons</a></li>
+			<li><a target="_blank" href="https://tiptap.dev/" class="link">Tiptap</a></li>
+			<li><a target="_blank" href="https://dexie.org/" class="link">Dexie.js</a></li>
+			<li>
+				<a target="_blank" href="https://github.com/orefalo/svelte-splitpanes" class="link"
+					>svelte-splitpanes</a
+				>
+			</li>
+			<li>
+				<a target="_blank" href="https://github.com/thisux/sveltednd" class="link"
+					>@thisux/sveltednd</a
+				>
+			</li>
+			<li><a target="_blank" href="https://echo.labstack.com/" class="link">Echo</a></li>
+			<li><a target="_blank" href="https://github.com/mdlayher/wol" class="link">wol</a></li>
+		</ul>
+	</div>
+	<div class="flex justify-end pt-2">
+		<Button click_function={popup_close_function} className="px-4">Schließen</Button>
+	</div>
+{/snippet}
+
 {#snippet remove_display_popup(display_id: string)}
 	<div class="max-w-prose px-2">
-		Soll der Bildschirm "{get_display_by_id(display_id, $displays)?.name || '?'}" wirklich gelöscht
+		Soll der Bildschirm <HighlightedText>{remove_display_name}</HighlightedText> wirklich gelöscht werden?
-		werden? Dadurch wird es von diesem Controller nicht mehr erreichbar. Die Installation auf dem
+		Dadurch wird es von diesem Controller nicht mehr erreichbar. Die Installation auf dem Gerät bleibt
-		Gerät bleibt bestehen. Mit dem erneuten Hinzufügen des Bildschirms wird er wieder steuerbar.
+		bestehen. Mit dem erneuten Hinzufügen des Bildschirms wird er wieder steuerbar.
 	</div>
 	<div class="flex flex-row justify-end gap-2">
-		<Button className="px-4 font-bold" click_function={popup_close_function}>Abbrechen</Button>
+		<Button className="button space font-bold" click_function={popup_close_function}>
+			Abbrechen
+		</Button>
 		<Button
-			hover_bg="bg-red-400"
+			className="error button space"
-			active_bg="bg-red-500"
+			click_function={async () => {
-			className="px-4 flex text-red-400 hover:text-stone-100"
-			click_function={() => {
-				remove_display(display_id);
 				popup_close_function();
+				await remove_display(display_id);
 			}}>Löschen</Button
 		>
 	</div>
 {/snippet}
 
-{#snippet add_new_display_popup(existing_display_id: string | null = null)}
+{#snippet display_popup(existing_display_id: string | null = null)}
 	<TextInput
+		focused_on_start
 		bind:current_value={text_inputs_valid.name.value}
 		bind:current_valid={text_inputs_valid.name.valid}
 		title="Anzeigename"
 		placeholder="z.B. Beamer vorne links"
-		is_valid_function={(input: string) => {
+		is_valid_function={async (input: string) => {
 			if (!!existing_display_id) {
-				if (input === get_display_by_id(existing_display_id, $displays)?.name)
+				if (input === (await get_display_by_id(existing_display_id))?.name)
 					return [true, 'Gültiger Name'];
 			}
 			if (input.length === 0 || input.length > 50) return [false, 'Ungültige Länge'];
-			if (is_display_name_taken(input)) return [false, 'Name bereits verwendet'];
+			if (await is_display_name_taken(input)) return [false, 'Name bereits verwendet'];
 			return [true, 'Gültiger Name'];
 		}}
+		enter_mode="focus_next"
 	/>
 	<div class="flex flex-row gap-2">
 		<TextInput
@@ -160,6 +261,7 @@
 					: [false, 'Ungültige IP-Adresse'];
 			}}
 			className="grow"
+			enter_mode="focus_next"
 		/>
 		<div class="flex items-end shrink-0">
 			<Button
@@ -180,7 +282,7 @@
 	<TextInput
 		bind:current_value={text_inputs_valid.mac.value}
 		bind:current_valid={text_inputs_valid.mac.valid}
-		title="MAC-Adresse (optional)"
+		title="MAC-Adresse (optional, wird zum aufwecken des Displays benötigt)"
 		placeholder="z.B. D4:81:A6:C4:BF:3F"
 		is_valid_function={(input: string) => {
 			return input === ''
@@ -189,6 +291,10 @@
 					? [true, 'Gültige MAC-Adresse']
 					: [false, 'Ungültige MAC-Adresse'];
 		}}
+		enter_mode="submit"
+		enter_function={async () => {
+			await finalize_add_edit_display(existing_display_id);
+		}}
 	/>
 	<div class="flex flex-row gap-2 justify-end pt-2">
 		{#if !!existing_display_id}
@@ -199,8 +305,8 @@
 			disabled={!all_text_inputs_valid()}
 			className="{!!existing_display_id ? 'px-4' : 'pl-3 pr-4 gap-2'} font-bold"
 			bg="bg-stone-650"
-			click_function={() => {
+			click_function={async () => {
-				finalize_add_edit_display(existing_display_id);
+				await finalize_add_edit_display(existing_display_id);
 			}}
 			>{#if !!existing_display_id}
 				Speichern
@@ -211,14 +317,59 @@
 	</div>
 {/snippet}
 
-<main class="bg-stone-900 h-dvh w-dvw text-stone-200 px-4 py-2 gap-2 grid grid-rows-[3rem_auto]">
+{#snippet settings_popup()}
-	<!-- {@html SplashScreen} -->
+	<div class="flex flex-col gap-2 pl-1">
+		<span class="font-bold text-lg">Vorschau-Verhalten</span>
+		<div class="flex flex-col gap-2 ml-2">
+			<span class="text-stone-400 text-sm max-w-prose"
+				>Die Vorschau eines Bildschirms ist das Bild, welches links neben dem Display-Namen zu sehen
+				ist. Es zeigt relativ aktuell das an, was auf dem jeweiligen Bildschirm zu sehen ist.</span
+			>
+			<div class="flex flex-row justify-between items-center">
+				<span>Aktualisierungs-Verhalten</span>
+				<Button
+					className="gap-3 pl-4 pr-3 w-35"
+					menu_options={(['never', 'normal', 'always'] as const).map((mode) => ({
+						icon: mode === $preview_settings.mode ? SquareCheckBig : Square,
+						name: get_display_preview_mode(mode),
+						on_select: () => {
+							$preview_settings.mode = mode;
+						}
+					}))}>{get_display_preview_mode($preview_settings.mode)} <ChevronDown /></Button
+				>
+			</div>
+			<div class="flex flex-row justify-between items-center">
+				<span>Intervall zwischen den Aktualisierungs-Anfragen</span>
+				<NumberSettingInput
+					disabled={$preview_settings.mode === 'never'}
+					number_setting={$preview_settings.retry_seconds}
+					on_change={(new_value: number) => {
+						$preview_settings.retry_seconds.now = new_value;
+					}}
+				/>
+			</div>
+			<div class="flex flex-row justify-between items-center max-w-full gap-8">
+				<span class="">Anzahl der änderungslosen Aktualisierungen bis pausiert wird</span>
+				<NumberSettingInput
+					disabled={$preview_settings.mode !== 'normal'}
+					number_setting={$preview_settings.retry_count}
+					on_change={(new_value: number) => {
+						$preview_settings.retry_count.now = new_value;
+					}}
+				/>
+			</div>
+		</div>
+	</div>
+	<div class="flex justify-end pt-4">
+		<Button click_function={popup_close_function} className="px-4">Schließen</Button>
+	</div>
+{/snippet}
 
+<main class="bg-stone-900 h-dvh w-dvw text-stone-200 px-4 py-2 gap-2 grid grid-rows-[3rem_auto]">
 	<div class="w-[calc(100dvw-(8*var(--spacing)))] flex justify-between">
 		<span class="text-4xl font-bold content-center pl-1"> PLG MuDiCS </span>
 		<Button
 			className="aspect-square"
-			bg="bg-stone-800"
 			div_class="aspect-square"
 			menu_options={[
 				{
@@ -228,11 +379,17 @@
 				},
 				{
 					icon: Settings,
-					name: 'Weitere Einstellungen'
+					name: 'Einstellungen',
+					on_select: show_settings_popup
+				},
+				{
+					icon: Info,
+					name: 'Über',
+					on_select: show_about_popup
 				}
 			]}
 		>
-			<Settings></Settings>
+			<Menu />
 		</Button>
 	</div>
 	<div class="w-[calc(100dvw-(8*var(--spacing)))] grid grid-cols-2 gap-2">
@@ -247,5 +404,10 @@
 			<FileView />
 		</div>
 	</div>
-	<PopUp content={popup_content} close_function={popup_close_function} />
+	<PopUp
+		content={popup_content}
+		close_function={popup_close_function}
+		className="bg-white/10"
+		snippet_container_class="min-w-115"
+	/>
 </main>

control/frontend/src/routes/ControlView.svelte

@@ -0,0 +1,299 @@
+<script lang="ts">
+	import {
+		ArrowBigLeft,
+		ArrowBigRight,
+		ChevronDown,
+		Keyboard,
+		Power,
+		PowerOff,
+		Presentation,
+		SquareTerminal,
+		TextAlignStart,
+		TrafficCone,
+		Globe
+	} from 'lucide-svelte';
+	import Button from '$lib/components/Button.svelte';
+	import PopUp from '$lib/components/PopUp.svelte';
+	import type { PopupContent } from '$lib/ts/types';
+	import KeyInput from './KeyInput.svelte';
+	import {
+		send_keyboard_input,
+		show_blackscreen,
+		shutdown,
+		startup,
+		show_html
+	} from '$lib/ts/api_handler';
+	import { get_display_by_id, run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import { selected_display_ids } from '$lib/ts/stores/select';
+	import TipTapInput from './TipTapInput.svelte';
+	import { db } from '$lib/ts/database';
+	import { liveQuery, type Observable } from 'dexie';
+	import TextInput from '$lib/components/TextInput.svelte';
+
+	let all_display_states: Observable<'on' | 'off' | 'mixed'> | undefined = $state();
+	$effect(() => {
+		const ids = $selected_display_ids;
+		all_display_states = liveQuery(() => all_state(ids));
+	});
+
+	let popup_content: PopupContent = $state({
+		open: false,
+		snippet: null,
+		title: '',
+		closable: true
+	});
+
+	function popup_close_function() {
+		popup_content.open = false;
+	}
+
+	const show_send_keys_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: send_keys_popup,
+			title: 'Tastatur-Eingaben durchgeben',
+			title_icon: Keyboard,
+			closable: true
+		};
+	};
+
+	const show_text_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: text_popup,
+			title: 'Text anzeigen',
+			title_icon: TextAlignStart,
+			closable: true,
+			window_class: 'size-full'
+		};
+	};
+
+	const show_website_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: website_popup,
+			title: 'Webseite anzeigen',
+			window_class: 'w-xl',
+			title_icon: Globe,
+			closable: true
+		};
+	};
+
+	async function all_state(selected_display_ids: string[]): Promise<'on' | 'off' | 'mixed'> {
+		const selected_displays = await Promise.all(
+			selected_display_ids.map(async (id) => await get_display_by_id(id))
+		);
+		const selected_display_states = selected_displays.map((display) => display?.status ?? '');
+		if (selected_display_states.every((state) => state === 'app_online')) {
+			return 'on';
+		} else if (selected_display_states.every((state) => state !== 'app_online')) {
+			return 'off';
+		} else {
+			return 'mixed';
+		}
+	}
+
+	async function ask_shutdonw() {
+		popup_content = {
+			open: true,
+			snippet: ask_shutdonw_popup,
+			title: 'PC Herunterfahren',
+			title_icon: PowerOff,
+			closable: true
+		};
+	}
+
+	async function shutdown_action() {
+		popup_content.open = false;
+		await run_on_all_selected_displays((d) => {
+			shutdown(d.ip); // no await here because we want to be fast
+			db.displays.update(d.id, { status: 'app_offline' });
+		}, false);
+	}
+
+	async function startup_action() {
+		await run_on_all_selected_displays(
+			async (d) => {
+				if (!d.mac) return;
+				startup(d.mac); // no await here because we want to be fast
+				db.displays.update(d.id, { status: 'app_offline' });
+			},
+			false,
+			false
+		);
+	}
+
+	async function send_single_key_press(key: string) {
+		await run_on_all_selected_displays((d) =>
+			send_keyboard_input(d.ip, [{ key, action: 'press' }])
+		);
+		setTimeout(
+			async () =>
+				await run_on_all_selected_displays((d) =>
+					send_keyboard_input(d.ip, [{ key, action: 'release' }])
+				),
+			10
+		);
+	}
+	let website_url = $state('');
+	let website_url_valid = $state(false);
+
+	function validate_website_url(url: string): [boolean, string] {
+		if (url === '') return [true, ''];
+		const regex = /^https?:\/\/[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}/;
+		if (regex.test(url)) {
+			return [true, ''];
+		}
+		return [false, 'Ungültige URL'];
+	}
+
+	async function send_website() {
+		popup_content.open = false;
+		await run_on_all_selected_displays((d) =>
+			show_html(d.ip, `<iframe src="${website_url}"></iframe>`)
+		);
+		website_url = '';
+	}
+</script>
+
+{#snippet website_popup()}
+	<div class="flex flex-col gap-2">
+		<TextInput
+			title="URL"
+			placeholder="https://example.com"
+			bind:current_value={website_url}
+			bind:current_valid={website_url_valid}
+			is_valid_function={validate_website_url}
+			enter_mode="submit"
+			enter_function={send_website}
+		/>
+		<div class="flex flex-row justify-end gap-2">
+			<Button className="button space font-bold" click_function={popup_close_function}>
+				Abbrechen
+			</Button>
+			<Button
+				click_function={send_website}
+				disabled={!website_url_valid || website_url === ''}
+				className="button success space">Anzeigen</Button
+			>
+		</div>
+	</div>
+{/snippet}
+
+{#snippet ask_shutdonw_popup()}
+	<p>Bist du sicher, dass du alle ausgewählten Displays herunterfahren möchtest?</p>
+
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="button space font-bold" click_function={() => (popup_content.open = false)}>
+			Abbrechen
+		</Button>
+		<Button click_function={shutdown_action} className="button error space">Herunterfahren</Button>
+	</div>
+{/snippet}
+
+{#snippet send_keys_popup()}
+	<div class="overflow-hidden flex flex-col gap-2">
+		<div>
+			<KeyInput />
+		</div>
+		<div class="flex flex-row justify-end gap-2">
+			<Button className="px-4 font-bold" click_function={popup_close_function}>Fertig</Button>
+		</div>
+	</div>
+{/snippet}
+
+{#snippet text_popup()}
+	<TipTapInput />
+{/snippet}
+
+<div class="grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl min-w-0">
+	<div class="text-xl font-bold pl-3 content-center bg-stone-700 rounded-t-2xl truncate min-w-0">
+		Bildschirme steuern
+	</div>
+	<div class="relative flex flex-col gap-2 p-2 overflow-auto">
+		<div class="flex flex-row justify-between gap-2">
+			<div class="flex flex-col gap-2">
+				<div class="flex flex-row gap-2 w-75 justify-normal">
+					<Button
+						title="Vorherige Folie (Pfeil nach Links)"
+						className="px-9"
+						disabled={$selected_display_ids.length === 0}
+						click_function={async () => {
+							await send_single_key_press('VK_LEFT');
+						}}><ArrowBigLeft /></Button
+					>
+					<Button
+						title="Nächste Folie (Pfeil nach Rechts)"
+						className="px-9"
+						disabled={$selected_display_ids.length === 0}
+						click_function={async () => {
+							await send_single_key_press('VK_RIGHT');
+						}}><ArrowBigRight /></Button
+					>
+				</div>
+
+				<Button
+					className="px-3 flex gap-3 w-75 justify-normal"
+					disabled={$selected_display_ids.length === 0}
+					click_function={show_text_popup}><TextAlignStart /> Text anzeigen</Button
+				>
+
+				<Button
+					className="px-3 flex gap-3 w-75 justify-normal"
+					disabled={$selected_display_ids.length === 0}
+					click_function={show_website_popup}><Globe /> Webseite anzeigen</Button
+				>
+
+				<Button
+					className="px-3 flex gap-3 w-75 justify-normal"
+					disabled={$selected_display_ids.length === 0}
+					click_function={async () => {
+						await run_on_all_selected_displays((d) => show_blackscreen(d.ip));
+					}}><Presentation />Blackout</Button
+				>
+
+				<div class="flex flex-row justify-normal">
+					<Button className="rounded-r-none pl-3 flex gap-3 grow w-65 justify-normal" disabled>
+						<TrafficCone /> Fallback-Bild anzeigen
+					</Button>
+					<Button className="rounded-l-none flex grow-0 w-10" disabled><ChevronDown /></Button>
+				</div>
+
+				<Button
+					className="px-3 flex gap-3 w-75 justify-normal"
+					disabled={$selected_display_ids.length === 0}
+					click_function={show_send_keys_popup}><Keyboard /> Tastatur-Eingaben durchgeben</Button
+				>
+			</div>
+			<div class="flex flex-col gap-2 justify-between">
+				<div class="flex flex-col gap-2">
+					<Button
+						className="px-3 flex gap-3 w-full xl:w-75 justify-normal"
+						disabled={$all_display_states === 'on' || $selected_display_ids.length === 0}
+						click_function={startup_action}
+					>
+						<Power /> PC hochfahren
+					</Button>
+
+					<Button
+						className="px-3 flex gap-3 w-full xl:w-75 justify-normal"
+						disabled={$all_display_states === 'off' || $selected_display_ids.length === 0}
+						click_function={ask_shutdonw}
+					>
+						<PowerOff /> PC herunterfahren</Button
+					>
+				</div>
+				<Button className="px-3 flex gap-3 w-full xl:w-75 justify-normal" disabled>
+					<SquareTerminal />
+					Shell-Befehl ausführen
+				</Button>
+			</div>
+		</div>
+		<PopUp
+			content={popup_content}
+			close_function={popup_close_function}
+			className="rounded-b-2xl"
+			snippet_container_class="size-full"
+		/>
+	</div>
+</div>

control/frontend/src/routes/DisplayView.svelte

@@ -0,0 +1,297 @@
+<script lang="ts">
+	import { fade, scale } from 'svelte/transition';
+	import {
+		all_displays_of_group_selected,
+		get_display_by_id,
+		set_select_for_group,
+		local_displays,
+		update_local_displays,
+		update_db_displays,
+		get_display_groups
+	} from '$lib/ts/stores/displays';
+	import {
+		change_height,
+		current_height,
+		dnd_flip_duration_ms,
+		is_display_drag,
+		is_group_drag,
+		next_height_step_size,
+		pinned_display_id
+	} from '$lib/ts/stores/ui_behavior';
+	import { type Display, type DisplayGroup, type MenuOption } from '$lib/ts/types';
+	import Button from '$lib/components/Button.svelte';
+	import OnlineState from '../lib/components/OnlineState.svelte';
+	import { Menu, Pencil, PinOff, Trash2, VideoOff, ZoomIn, ZoomOut } from 'lucide-svelte';
+	import { selected_display_ids } from '$lib/ts/stores/select';
+	import { dragHandleZone } from 'svelte-dnd-action';
+	import DisplayGroupObject from '../lib/components/DisplayGroupObject.svelte';
+	import { Pane, Splitpanes } from 'svelte-splitpanes';
+	import HighlightedText from '$lib/components/HighlightedText.svelte';
+	import { liveQuery, type Observable } from 'dexie';
+	import { onMount } from 'svelte';
+	import { flip } from 'svelte/animate';
+	import { cubicOut } from 'svelte/easing';
+
+	let {
+		handle_display_deletion,
+		handle_display_editing
+	}: {
+		handle_display_deletion: (display_id: string) => void;
+		handle_display_editing: (display_id: string) => void;
+	} = $props();
+
+	let displays_scroll_box: HTMLElement;
+	let pinned_display: Observable<Display | null> | undefined = $state();
+	$effect(() => {
+		const pdi = $pinned_display_id;
+		pinned_display = liveQuery(() => get_display_by_id(pdi || ''));
+	});
+
+	let display_groups = liveQuery(() => get_display_groups());
+	let display_id_groups = liveQuery(() => update_local_displays());
+	$effect(() => {
+		const current_displays = $display_id_groups;
+		if (!$is_group_drag && !$is_display_drag && current_displays) {
+			$local_displays = current_displays;
+		}
+	});
+
+	let all_groups_selected: Observable<boolean> | undefined = $state();
+	$effect(() => {
+		const d = $display_groups;
+		const sdi = $selected_display_ids;
+		all_groups_selected = liveQuery(() => all_selected(d || [], sdi));
+	});
+
+	let last_pinned_pane_size: number = 45;
+	let pinned_pane_size: number = $state(last_pinned_pane_size);
+
+	function close_pinned_display() {
+		last_pinned_pane_size = pinned_pane_size;
+		pinned_pane_size = 0;
+	}
+
+	function get_display_menu_options(display_id: string): MenuOption[] {
+		return [
+			{
+				icon: Pencil,
+				name: 'Bildschirm bearbeiten',
+				on_select: () => {
+					handle_display_editing(display_id);
+				}
+			},
+			{
+				icon: Trash2,
+				name: 'Bildschirm löschen',
+				class: 'text-red-400 hover:text-stone-200 hover:!bg-red-400 active:!bg-red-500',
+				on_select: () => {
+					handle_display_deletion(display_id);
+				}
+			}
+		];
+	}
+
+	async function toggle_all_selected_displays(current_displays: DisplayGroup[]) {
+		const new_value = !$all_groups_selected;
+		for (const display_group of current_displays) {
+			await set_select_for_group(display_group.id, new_value);
+		}
+	}
+
+	async function all_selected(
+		current_displays: DisplayGroup[],
+		current_selected_display_ids: string[]
+	) {
+		for (const display_group of current_displays) {
+			if (!(await all_displays_of_group_selected(display_group.id, current_selected_display_ids))) {
+				return false;
+			}
+		}
+		return true;
+	}
+
+	function handle_splitpane_resize(e: any) {
+		if (e.detail[0].size === 0) {
+			$pinned_display_id = null;
+			pinned_pane_size = last_pinned_pane_size;
+		}
+	}
+
+	function on_wheel(e: WheelEvent) {
+		if (!$is_group_drag && !$is_display_drag) return;
+		if (!displays_scroll_box) return;
+
+		// apply custom scroll feature
+		e.preventDefault();
+		(displays_scroll_box as HTMLElement).scrollBy?.({
+			top: e.deltaY,
+			behavior: 'auto'
+		});
+	}
+</script>
+
+<svelte:window on:wheel={on_wheel} />
+
+<div class="h-[calc(100dvh-3rem-(6*var(--spacing)))] flex flex-col gap-2">
+	<Splitpanes
+		horizontal
+		theme="mudics-stone-theme"
+		on:resized={handle_splitpane_resize}
+		dblClickSplitter={false}
+	>
+		{#if $pinned_display_id}
+			<!-- Pinned Item -->
+			<Pane maxSize={60} snapSize={20} bind:size={pinned_pane_size}>
+				<div class="h-full" transition:fade>
+					<div class="grid grid-rows-[2.5rem_auto] will-change-[height,opacity] h-full">
+						<div
+							class="bg-stone-700 rounded-t-2xl flex justify-between w-full p-1 min-w-0 basis-0 flex-1"
+						>
+							<span
+								class="text-xl font-bold pl-2 content-center truncate min-w-0"
+								title={$pinned_display?.name || '...'}
+							>
+								{$pinned_display?.name || '...'}
+							</span>
+							<div class="flex flex-row gap-1">
+								<div class="flex flex-row items-center mr-1">
+									<span class="text-stone-400"> Aktueller Status: </span>
+									<OnlineState
+										selected={false}
+										status={$pinned_display?.status ?? null}
+										className="flex items-center px-2"
+									/>
+								</div>
+								<Button
+									className="aspect-square p-1!"
+									bg="bg-stone-600"
+									click_function={(e) => {
+										e.stopPropagation();
+									}}
+									menu_options={get_display_menu_options($pinned_display_id)}
+								>
+									<Menu />
+								</Button>
+
+								<Button
+									title="Bildschirm nicht mehr anpinnen"
+									className="aspect-square p-1!"
+									bg="bg-stone-600"
+									click_function={close_pinned_display}
+								>
+									<PinOff />
+								</Button>
+							</div>
+						</div>
+
+						<div
+							class="h-full bg-stone-800 rounded-b-2xl overflow-hidden flex justify-center items-center"
+						>
+							{#if $pinned_display?.preview.url}
+								<img
+									src={$pinned_display.preview.url}
+									alt="preview"
+									class="max-h-full max-w-full object-cover bg-black"
+								/>
+							{:else}
+								<div class="size-full bg-black flex justify-center items-center">
+									<VideoOff class="size-[20%]" />
+								</div>
+							{/if}
+						</div>
+					</div>
+				</div>
+			</Pane>
+		{/if}
+
+		<Pane>
+			<div
+				class="min-h-0 h-full grid grid-rows-[2.5rem_auto] bg-stone-800 rounded-2xl overflow-hidden"
+			>
+				<!-- Normal Heading Left -->
+				<div class="bg-stone-700 flex justify-between w-full p-1 gap-2 min-w-0">
+					<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
+						Verbundene Bildschirme
+					</span>
+					<div class="flex flex-row gap-1">
+						<button
+							class="min-w-40 px-4 rounded-xl cursor-pointer duration-200 transition-colors bg-stone-600"
+							onclick={async () => await toggle_all_selected_displays($display_groups)}
+						>
+							<span>{$all_groups_selected || false ? 'Alle abwählen' : 'Alle auswählen'}</span>
+						</button>
+						<div class="flex flex-row">
+							<Button
+								title="Bildschirme größer darstellen"
+								className="aspect-square p-1.5! pr-1! rounded-r-none"
+								bg="bg-stone-600"
+								disabled={!Boolean(next_height_step_size('display', $current_height, 1))}
+								click_function={() => {
+									change_height('display', 1);
+								}}
+							>
+								<ZoomIn class="size-full" />
+							</Button>
+							<Button
+								title="Bildschirme kleiner darstellen"
+								className="aspect-square p-1.5! pl-1! rounded-l-none"
+								bg="bg-stone-600"
+								disabled={!Boolean(next_height_step_size('display', $current_height, -1))}
+								click_function={() => {
+									change_height('display', -1);
+								}}
+							>
+								<ZoomOut class="size-full" />
+							</Button>
+						</div>
+					</div>
+				</div>
+				<div class="min-h-0 overflow-y-auto overflow-x-hidden" bind:this={displays_scroll_box}>
+					{#if $local_displays.length === 0}
+						<div class="text-stone-500 px-10 py-6 leading-relaxed text-center">
+							Es wurden noch keine Bildschirme hinzugefügt. Klicke oben rechts auf
+							<HighlightedText fg="text-stone-450" className="p-1!">
+								<Menu class="inline pb-1" />
+							</HighlightedText>
+							und
+							<HighlightedText fg="text-stone-450">Neuen Bildschirm hinzufügen</HighlightedText>.
+						</div>
+					{:else}
+						<div
+							class="min-h-full p-2 flex flex-col gap-4"
+							use:dragHandleZone={{
+								items: $local_displays,
+								type: 'group',
+								flipDurationMs: dnd_flip_duration_ms,
+								dropFromOthersDisabled: true,
+								dropTargetStyle: { outline: 'none' }
+							}}
+							onconsider={(e: CustomEvent) => {
+								$is_group_drag = true;
+								$local_displays = e.detail.items;
+							}}
+							onfinalize={async (e: CustomEvent) => {
+								$local_displays = e.detail.items;
+								await update_db_displays();
+								$is_group_drag = false;
+							}}
+						>
+							{#each $local_displays as display_id_group (display_id_group.id)}
+								<!-- Each Group -->
+								<section class="outline-none">
+									<!-- out:scale={{ duration: dnd_flip_duration_ms, easing: cubicOut }}
+										animate:flip={{ duration: dnd_flip_duration_ms, easing: cubicOut }} -->
+									<DisplayGroupObject
+										{display_id_group}
+										{get_display_menu_options}
+										{close_pinned_display}
+									/>
+								</section>
+							{/each}
+						</div>
+					{/if}
+				</div>
+			</div>
+		</Pane>
+	</Splitpanes>
+</div>

control/frontend/src/routes/FileView.svelte

@@ -0,0 +1,421 @@
+<script lang="ts">
+	import {
+		ClipboardPaste,
+		Download,
+		FolderPlus,
+		Pen,
+		RefreshCcw,
+		Scissors,
+		Trash2,
+		Upload,
+		ZoomIn,
+		ZoomOut
+	} from 'lucide-svelte';
+	import { change_height, current_height, next_height_step_size } from '$lib/ts/stores/ui_behavior';
+	import Button from '$lib/components/Button.svelte';
+	import PathBar from './PathBar.svelte';
+	import { selected_display_ids, selected_file_ids } from '$lib/ts/stores/select';
+	import {
+		current_file_path,
+		get_folder_elements,
+		get_file_by_id,
+		run_for_selected_files_on_selected_displays,
+		update_current_folder_on_selected_displays,
+		get_displays_where_path_not_exists,
+		create_folder_on_all_selected_displays
+	} from '$lib/ts/stores/files';
+	import { slide } from 'svelte/transition';
+	import InodeElement from '../lib/components/InodeElement.svelte';
+	import PopUp from '$lib/components/PopUp.svelte';
+	import { get_file_primary_key, type Inode, type PopupContent } from '$lib/ts/types';
+	import TextInput from '$lib/components/TextInput.svelte';
+	import {
+		first_letter_is_valid,
+		get_accepted_file_type_string,
+		is_valid_name
+	} from '$lib/ts/utils';
+	import { delete_files, rename_file } from '$lib/ts/api_handler';
+	import HighlightedText from '$lib/components/HighlightedText.svelte';
+	import { liveQuery, type Observable } from 'dexie';
+	import { download_file, add_upload, add_sync_recursively } from '$lib/ts/file_transfer_handler';
+
+	let current_name: string = $state('');
+	let current_valid: boolean = $state(false);
+
+	let display_names_where_path_does_not_exist: string[] = $state([]);
+	let selected_files: Observable<Inode[]> | undefined = $state();
+	$effect(() => {
+		const s = $selected_file_ids;
+		selected_files = liveQuery(() => get_selected_files(s));
+	});
+	let current_folder_elements: Observable<Inode[]> | undefined = $state();
+	$effect(() => {
+		const path = $current_file_path,
+			display_ids = $selected_display_ids;
+		current_folder_elements = liveQuery(() => get_folder_elements(path, display_ids));
+	});
+	let one_file_selected: Observable<boolean> | undefined = $state();
+	$effect(() => {
+		const s = $selected_file_ids;
+		one_file_selected = liveQuery(async () => {
+			return s.length === 1 && (await get_file_by_id(s[0]))?.type !== 'inode/directory';
+		});
+	});
+
+	let popup_content: PopupContent = $state({
+		open: false,
+		snippet: null,
+		title: '',
+		closable: true
+	});
+
+	let file_input: HTMLInputElement;
+
+	async function get_selected_files(selected_file_ids: string[]): Promise<Inode[]> {
+		try {
+			const results = await Promise.all(selected_file_ids.map((id) => get_file_by_id(id)));
+			return results.filter((element) => element !== null);
+		} catch (e: unknown) {
+			console.error('Error on generating selected_files');
+			return [];
+		}
+	}
+
+	function popup_close_function() {
+		popup_content.open = false;
+	}
+
+	async function create_new_folder() {
+		popup_close_function();
+		await create_folder_on_all_selected_displays(
+			current_name.trim(),
+			$current_file_path,
+			$selected_display_ids
+		);
+		await update_current_folder_on_selected_displays();
+	}
+
+	async function edit_file_name(new_file_name: string) {
+		popup_close_function();
+		await run_for_selected_files_on_selected_displays(async (ip: string, file_names: string[]) => {
+			if (file_names.length !== 1) {
+				console.error(file_names);
+				return; // Error
+			}
+			await rename_file(ip, $current_file_path, file_names[0], new_file_name);
+		});
+		await update_current_folder_on_selected_displays();
+	}
+
+	const show_edit_file_popup = async () => {
+		const file = await get_file_by_id($selected_file_ids[0]);
+		if (!file) return;
+		const is_folder = file.type === 'inode/directory';
+		const extension = is_folder ? '' : '.' + file.name.split('.').at(-1) || '';
+		current_name = file.name.slice(0, file.name.length - extension.length);
+		current_valid = true;
+		popup_content = {
+			open: true,
+			snippet: edit_file_name_popup,
+			title: `${is_folder ? 'Ordner' : 'Datei'} umbenennen`,
+			title_icon: FolderPlus,
+			snippet_arg: extension,
+			closable: true
+		};
+	};
+
+	const show_new_folder_popup = async () => {
+		current_name = '';
+		current_valid = false;
+		display_names_where_path_does_not_exist = (
+			await get_displays_where_path_not_exists($current_file_path, $selected_display_ids)
+		).map((display) => display.name);
+		popup_content = {
+			open: true,
+			snippet: new_folder_popup,
+			title: 'Neuen Ordner erstellen',
+			title_icon: FolderPlus,
+			closable: true
+		};
+	};
+
+	const delete_folder_element_popup = () => {
+		popup_content = {
+			open: true,
+			snippet: delete_request_popup,
+			title: `${$selected_file_ids.length} ${$selected_file_ids.length === 1 ? 'Objekt' : 'Objekte'} wirklich löschen?`,
+			title_icon: Trash2,
+			closable: true
+		};
+	};
+
+	async function sync_selected_files(
+		selected_file_ids: string[],
+		selected_display_ids: string[],
+		current_folder_elements: Inode[]
+	) {
+		if (selected_file_ids.length === 0 && current_folder_elements.length > 0) {
+			selected_file_ids = current_folder_elements.map((inode) => get_file_primary_key(inode));
+		}
+		if (selected_file_ids.length === 0) return;
+		// Mit For-Schleife über ausgewählte Elemente gehen
+		for (const file_id of selected_file_ids) {
+			await add_sync_recursively(file_id, selected_display_ids);
+		}
+	}
+</script>
+
+{#snippet new_folder_popup()}
+	{#if display_names_where_path_does_not_exist.length > 0}
+		<span class="leading-relaxed"
+			>Der aktuelle Pfad <HighlightedText
+				>{$current_file_path.slice(0, $current_file_path.length - 1)}</HighlightedText
+			> existiert nicht auf {display_names_where_path_does_not_exist.length === 1
+				? 'dem Bildschirm'
+				: 'den Bildschirmen'}
+			{#each display_names_where_path_does_not_exist as display_name, i}
+				{#if i !== 0}
+					,
+				{/if}
+				<HighlightedText>{display_name}</HighlightedText>
+			{/each}. Mit der Erstellung dieses Ordners wird der Pfad automatisch mit leeren Ordnern bis
+			zum aktuellen Pfad aufgefüllt.
+		</span>
+	{/if}
+	<TextInput
+		focused_on_start={true}
+		bind:current_value={current_name}
+		bind:current_valid
+		title="Ordnername"
+		is_valid_function={async (input: string) => {
+			const trimmed_input = input.trim();
+			if (trimmed_input.length === 0 || trimmed_input.length > 50)
+				return [false, 'Ungültige Länge'];
+			if (!first_letter_is_valid(trimmed_input))
+				return [false, `Name darf nicht mit ${trimmed_input[0]} beginnen`];
+			if (!is_valid_name(trimmed_input)) return [false, 'Name enthält ungültige Zeichen'];
+			if (($current_folder_elements ?? []).some((e) => e.name === trimmed_input))
+				return [false, 'Name bereits verwendet'];
+			return [true, 'Gültiger Name'];
+		}}
+		enter_mode="submit"
+		enter_function={create_new_folder}
+	/>
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="px-4 font-bold" click_function={create_new_folder} disabled={!current_valid}
+			>Neuen Ordner erstellen</Button
+		>
+	</div>
+{/snippet}
+
+{#snippet edit_file_name_popup(extension: string)}
+	<TextInput
+		focused_on_start={true}
+		bind:current_value={current_name}
+		bind:current_valid
+		title="Neuer {extension === '' ? 'Ordner' : 'Datei'}name"
+		is_valid_function={async (input: string) => {
+			const trimmed_input = input.trim() + extension;
+			if (trimmed_input.length === 0 || trimmed_input.length > 50)
+				return [false, 'Ungültige Länge'];
+			if (!first_letter_is_valid(trimmed_input))
+				return [false, `Name darf nicht mit ${trimmed_input[0]} beginnen`];
+			if (!is_valid_name(trimmed_input)) return [false, 'Name enthält ungültige Zeichen'];
+			if (
+				($current_folder_elements ?? []).some(
+					(e) => e.name === trimmed_input && get_file_primary_key(e) !== $selected_file_ids[0]
+				)
+			)
+				return [false, 'Name bereits verwendet'];
+			return [true, 'Gültiger Name'];
+		}}
+		enter_mode="submit"
+		enter_function={async () => await edit_file_name(current_name.trim() + extension)}
+		{extension}
+	/>
+	<div class="flex flex-row justify-end gap-2">
+		<Button
+			className="px-4 font-bold"
+			click_function={async () => await edit_file_name(current_name.trim() + extension)}
+			disabled={!current_valid}>{extension === '' ? 'Ordner' : 'Datei'} umbenennen</Button
+		>
+	</div>
+{/snippet}
+
+{#snippet delete_request_popup()}
+	<div class="flex flex-col gap-1 h-full min-h-0 grow-0">
+		<span class="text-stone-400 px-1"
+			>{`${$selected_file_ids.length === 1 ? 'Folgendes Objekt' : `Folgende ${$selected_file_ids.length} Objekte`} löschen? (Wiederherstellung nicht möglich)`}</span
+		>
+		<div class="flex flex-col gap-2 overflow-y-auto h-full min-h-0 grow-0">
+			{#each $selected_files || [] as file}
+				<InodeElement {file} not_interactable />
+			{/each}
+		</div>
+	</div>
+	<div class="flex flex-row justify-end gap-2">
+		<Button className="button space font-bold" click_function={popup_close_function}>
+			Abbrechen
+		</Button>
+		<Button
+			className="button error space"
+			click_function={async () => {
+				popup_close_function();
+				await run_for_selected_files_on_selected_displays(
+					async (ip: string, file_names: string[]) => {
+						await delete_files(ip, $current_file_path, file_names);
+					}
+				);
+				await update_current_folder_on_selected_displays();
+			}}>Löschen</Button
+		>
+	</div>
+{/snippet}
+
+<input
+	class="hidden"
+	type="file"
+	bind:this={file_input}
+	multiple
+	accept={get_accepted_file_type_string()}
+	onchange={(e) =>
+		add_upload((e.target as HTMLInputElement).files!, $selected_display_ids, $current_file_path)}
+/>
+
+<div class="bg-stone-800 h-full rounded-2xl grid grid-rows-[2.5rem_1fr] min-h-0">
+	<div class="bg-stone-700 flex justify-between w-full p-1 rounded-t-2xl min-w-0 gap-2">
+		<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
+			Dateien anzeigen und verwalten
+		</span>
+		<div class="flex flex-row">
+			<Button
+				title="Dateien größer darstellen"
+				className="aspect-square p-1.5! pr-1! rounded-r-none"
+				bg="bg-stone-600"
+				disabled={!Boolean(next_height_step_size('file', $current_height, 1))}
+				click_function={() => {
+					change_height('file', 1);
+				}}
+			>
+				<ZoomIn class="size-full" />
+			</Button>
+			<Button
+				title="Dateien kleiner darstellen"
+				className="aspect-square p-1.5! pl-1! rounded-l-none"
+				bg="bg-stone-600"
+				disabled={!Boolean(next_height_step_size('file', $current_height, -1))}
+				click_function={() => {
+					change_height('file', -1);
+				}}
+			>
+				<ZoomOut class="size-full" />
+			</Button>
+		</div>
+	</div>
+	<div class="flex flex-col gap-2 p-2 overflow-hidden relative rounded-b-2xl">
+		<div class="flex flex-col gap-2 p-2 bg-stone-750 rounded-xl">
+			<PathBar />
+			<div class="flex flex-row justify-between gap-6">
+				<div class="flex flex-row gap-2 shrink-0">
+					<Button
+						title="Neuen Ordner erstellen (Neuen Ordner mit ausgewählten Objekten erstellen)"
+						className="px-3 flex"
+						click_function={show_new_folder_popup}
+						disabled={$selected_display_ids.length === 0}><FolderPlus /></Button
+					>
+					<div class="border border-stone-700 my-1"></div>
+					<Button
+						title="Datei(en) hochladen"
+						className="px-3 flex"
+						click_function={() => {
+							if (file_input) file_input.click();
+						}}
+						disabled={$selected_display_ids.length === 0}><Upload /></Button
+					>
+					<Button
+						title="Ausgewählte Datei herunterladen"
+						className="px-3 flex"
+						click_function={async () =>
+							await download_file($selected_file_ids[0], $selected_display_ids)}
+						disabled={!$one_file_selected}><Download /></Button
+					>
+					<div class="border border-stone-700 my-1"></div>
+					<Button
+						title="Aktuellen Ordner / Ausgewählte Datei(en) zwischen Bildschirmen synchronisieren"
+						className="px-3 flex gap-3"
+						click_function={async () =>
+							await sync_selected_files(
+								$selected_file_ids,
+								$selected_display_ids,
+								$current_folder_elements ?? []
+							)}
+						disabled={$selected_display_ids.length === 0}
+						><RefreshCcw />
+						<span class="hidden 2xl:flex">Synchronisieren</span>
+					</Button>
+				</div>
+				<div class="flex flex-row gap-2">
+					<Button
+						title="Ausgewählte Datei(en) ausschneiden"
+						className="px-3 flex"
+						disabled={$selected_file_ids.length === 0}><Scissors /></Button
+					>
+					<Button
+						title="Ausgewählte Datei(en) einfügen"
+						className="px-3 flex"
+						disabled={$selected_display_ids.length === 0}
+					>
+						<ClipboardPaste />
+					</Button>
+					<div class="border border-stone-700 my-1"></div>
+					<Button
+						title="Ausgewählte Datei umbenennen"
+						className="px-3 flex"
+						click_function={show_edit_file_popup}
+						disabled={$selected_file_ids.length !== 1}><Pen /></Button
+					>
+					<Button
+						title="Ausgewählte Datei(en) löschen"
+						hover_bg="bg-red-400"
+						active_bg="bg-red-500"
+						className="px-3 flex"
+						disabled={$selected_file_ids.length === 0}
+						click_function={delete_folder_element_popup}><Trash2 /></Button
+					>
+				</div>
+			</div>
+		</div>
+		<div class="min-h-0 h-full overflow-y-auto overflow-x-hidden bg-stone-750 rounded-xl">
+			<div class="flex flex-col gap-2 p-2 min-h-0 max-w-full">
+				{#if $selected_display_ids.length === 0}
+					<span class="text-stone-450 px-10 py-6 leading-relaxed text-center">
+						Es sind keine Bildschirme ausgewählt.
+					</span>
+				{:else}
+					{#each $current_folder_elements ?? [] as folder_element (get_file_primary_key(folder_element))}
+						<section in:slide={{ duration: 100 }} class="outline-none">
+							<InodeElement file={folder_element} />
+						</section>
+					{/each}
+					{#if ($current_folder_elements ?? []).length === 0}
+						<span class="text-stone-450 px-10 py-6 leading-relaxed text-center max-w-full">
+							Es existieren keine Dateien auf {$selected_display_ids.length === 1
+								? 'dem ausgewähltem Bildchirm'
+								: 'den ausgewählten Bildschirmen'} im aktuellen Ordner. Klicke auf <HighlightedText
+								bg="bg-stone-700"
+								fg="text-stone-400"
+								className="p-1!"><Upload class="inline pb-1" /></HighlightedText
+							> um Datei(en) hochzuladen.
+						</span>
+					{/if}
+				{/if}
+			</div>
+		</div>
+		<PopUp
+			content={popup_content}
+			close_function={popup_close_function}
+			className="rounded-b-2xl"
+			snippet_container_class="overflow-hidden min-w-90"
+		/>
+	</div>
+</div>

control/frontend/src/routes/KeyInput.svelte

@@ -0,0 +1,106 @@
+<script lang="ts">
+	import { flip } from 'svelte/animate';
+	import { get_selectable_color_classes } from '$lib/ts/stores/ui_behavior';
+	import key_map_json from './../../../../shared/keys.json';
+	import { fade } from 'svelte/transition';
+	import { run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import { send_keyboard_input } from '$lib/ts/api_handler';
+
+	const key_map: Record<string, string> = key_map_json as Record<string, string>;
+
+	let active = $state(false);
+	const current_keys: string[] = $state([]);
+	let last_keys: { id: number; key: string }[] = $state([]);
+
+	let el: HTMLDivElement;
+
+	function add_to_last_keys(name: string) {
+		const id = Date.now();
+		last_keys.push({ id, key: name });
+		setTimeout(() => {
+			last_keys = last_keys.filter((e) => e.id !== id);
+		}, 1500);
+	}
+
+	async function on_key(e: KeyboardEvent, key_down: boolean) {
+		if (!active) return;
+		const id = key_map[e.code];
+		if (!id) return;
+
+		if (key_down) {
+			if (current_keys.includes(e.code)) return;
+			current_keys.push(e.code);
+		} else {
+			const index = current_keys.indexOf(e.code);
+			if (index === -1) return;
+			current_keys.splice(index, 1);
+		}
+
+		if (e.repeat) return;
+
+		e.preventDefault();
+		e.stopPropagation();
+
+		const action: 'press' | 'release' = key_down ? 'press' : 'release';
+
+		add_to_last_keys(action.toUpperCase() + ' ' + e.code);
+
+		await run_on_all_selected_displays(
+			(d) => send_keyboard_input(d.ip, [{ key: id, action }]),
+			true
+		);
+	}
+
+	async function release_all_pressed_keys() {
+		const inputs: {key: string; action: 'press' | 'release' }[] = [];
+		for (let i = current_keys.length - 1; i >= 0; i--) {
+			inputs.push({key: current_keys[i], action: 'release'})
+			current_keys.splice(i, 1);
+		}
+
+		await run_on_all_selected_displays(
+			(d) => send_keyboard_input(d.ip, inputs),
+			true
+		);
+	}
+</script>
+
+<div
+	role="textbox"
+	tabindex="0"
+	bind:this={el}
+	onclick={() => {
+		if (active) {
+			el.blur();
+		} else {
+			el.focus();
+			active = true;
+		}
+	}}
+	onblur={async () => {
+		active = false;
+		await release_all_pressed_keys();
+	}}
+	onkeydown={(e) => on_key(e, true)}
+	onkeyup={(e) => on_key(e, false)}
+	class="relative flex justify-center items-center h-15 w-full cursor-pointer rounded-xl transition-colors duration-200 select-none {get_selectable_color_classes(
+		active,
+		{
+			bg: true,
+			hover: true,
+			active: true,
+			text: true
+		}
+	)}"
+>
+	{active ? 'Erfassung aktiv' : 'Hier für Erfassung klicken'}
+	<div class="absolute top-full left-0 ml-1 mt-0.5 flex flex-col-reverse text-sm text-stone-400">
+		{#each last_keys as key (key.id)}
+			<span
+				animate:flip={{ duration: 200 }}
+				in:fade={{ duration: 200 }}
+				out:fade={{ duration: 500 }}>{key.key}</span
+			>
+		{/each}
+	</div>
+</div>

control/frontend/src/routes/Notification.svelte

@@ -0,0 +1,54 @@
+<script lang="ts">
+	import { fade } from 'svelte/transition';
+	import Button from '$lib/components/Button.svelte';
+	import { X } from 'lucide-svelte';
+	import { notifications } from '$lib/ts/stores/notification';
+</script>
+
+<div
+	data-testid="notification"
+	class="fixed flex flex-col gap-2 top-[41%] right-2 left-2 md:top-auto md:left-auto md:bottom-2 md:w-100 z-50"
+>
+	{#each $notifications as n (n.id)}
+		<div
+			transition:fade={{ duration: 200 }}
+			class="p-2 pl-4 pb-3 rounded-lg shadow-xl/30 text-white flex flex-col gap-2 overflow-hidden relative border border-black/20 {n.className}"
+			class:bg-red-900={n.type === 'error'}
+			class:bg-green-900={n.type === 'success'}
+			class:bg-sky-900={n.type === 'info'}
+			style="--dur: {n.duration}ms"
+		>
+			<div class="flex flex-row justify-between">
+				<span class="text-xl font-bold flex items-center">{n.title}</span>
+				<Button
+					click_function={() => notifications.remove(n.id)}
+					className="p-2"
+					bg="bg-stone-900/50"
+					hover_bg="bg-stone-600/70"
+					active_bg="bg-stone-500/80"><X /></Button
+				>
+			</div>
+
+			<span class="max-h-[60vh] overflow-y-auto overflow-x-hidden whitespace-pre-line max-w-full break-normal wrap-anywhere">{n.message}</span>
+
+			<div class="absolute inset-x-0 bottom-0 h-1 bg-white/25">
+				<div class="block h-full w-full bg-white/80 origin-left animate-progress-bar"></div>
+			</div>
+		</div>
+	{/each}
+</div>
+
+<style>
+	@keyframes progress {
+		from {
+			transform: scaleX(0);
+		}
+		to {
+			transform: scaleX(1);
+		}
+	}
+	.animate-progress-bar {
+		animation: progress var(--dur) linear forwards;
+		transform-origin: left;
+	}
+</style>

control/frontend/src/routes/PathBar.svelte

@@ -1,16 +1,17 @@
 <script lang="ts">
 	import { ChevronRight, House } from 'lucide-svelte';
-	import Button from './Button.svelte';
+	import Button from '$lib/components/Button.svelte';
 	import { onDestroy, onMount } from 'svelte';
-	import type { MenuOption } from '../ts/types';
+	import type { MenuOption } from '$lib/ts/types';
-	import { change_file_path, current_file_path } from '../ts/stores/files';
+	import { change_file_path, current_file_path } from '$lib/ts/stores/files';
-	import { fade } from 'svelte/transition';
 	import { flip } from 'svelte/animate';
 	import { cubicOut } from 'svelte/easing';
 
-	let { bg = 'bg-stone-700' } = $props<{
+	let {
+		bg = 'bg-stone-700'
+	}: {
 		bg?: string;
-	}>();
+	} = $props();
 
 	let outside_container: HTMLDivElement;
 	let inside_container: HTMLDivElement;
@@ -79,21 +80,21 @@
 			out.push({
 				name: '  '.repeat(i) + hidden_folders[i],
 				class: 'truncate max-w-80',
-				on_select: () => {
+				on_select: async () => {
-					open_path(i + 1, path);
+					await open_path(i + 1, path);
 				}
 			});
 		}
 		return out;
 	}
 
-	function open_path(index_of_all_folders: number, path: string) {
+	async function open_path(index_of_all_folders: number, path: string) {
 		let new_path = '/';
 		const all_folders = get_folders(path);
 		for (let i = 0; i < index_of_all_folders; i++) {
 			new_path += all_folders[i] + '/';
 		}
-		change_file_path(new_path);
+		await change_file_path(new_path);
 	}
 
 	onMount(() => {
@@ -113,11 +114,14 @@
 				<Button
 					className="py-1 shrink-0 grow-0 w-10"
 					{bg}
-					click_function={(e) => {
+					click_function={async () => {
-						open_path(0, $current_file_path);
+						await open_path(0, $current_file_path);
 					}}
 				>
-					<House class="size-full transition-all duration-100" strokeWidth={$current_file_path === '/' ? 2.7 : 2}/>
+					<House
+						class="size-full transition-all duration-100"
+						strokeWidth={$current_file_path === '/' ? 2.7 : 2}
+					/>
 				</Button>
 			</div>
 			{#if cut_folders !== 0}
@@ -144,8 +148,8 @@
 							? 'max-w-80 font-bold'
 							: 'max-w-30'}"
 						{bg}
-						click_function={(e) => {
+						click_function={async () => {
-							open_path(cut_folders + i + 1, $current_file_path);
+							await open_path(cut_folders + i + 1, $current_file_path);
 						}}
 					>
 						<ChevronRight class="shrink-0 text-stone-500 h-full" />

control/frontend/src/routes/TipTapInput.svelte

@@ -0,0 +1,249 @@
+<script lang="ts">
+	import { onMount, onDestroy } from 'svelte';
+	import { Editor } from '@tiptap/core';
+	import { StarterKit } from '@tiptap/starter-kit';
+	import Placeholder from '@tiptap/extension-placeholder';
+	import {
+		Baseline,
+		Bold,
+		Highlighter,
+		Italic,
+		PaintBucket,
+		QrCode,
+		Strikethrough
+	} from 'lucide-svelte';
+	import Button from '$lib/components/Button.svelte';
+	import { run_on_all_selected_displays } from '$lib/ts/stores/displays';
+	import { show_html } from '$lib/ts/api_handler';
+	import { get_selectable_color_classes } from '$lib/ts/stores/ui_behavior';
+	import { TextStyle } from '@tiptap/extension-text-style';
+	import { Color } from '@tiptap/extension-text-style';
+	import Highlight from '@tiptap/extension-highlight';
+
+	type TextEditOption = {
+		onclick: () => void;
+		is_selected: () => boolean;
+		icon: typeof Bold;
+		title: string;
+		color?: ColorElement;
+	};
+
+	type ColorElement = {
+		color_string: () => string;
+		color_picker: () => void;
+	};
+
+	type ColorState = {
+		el: HTMLInputElement | null;
+		value: string;
+	};
+
+	let element = $state<HTMLElement>();
+	let editor_state = $state<{ editor: Editor | null }>({ editor: null });
+
+	let color_states: { text: ColorState; highlight: ColorState; bg: ColorState } = $state({
+		text: { el: null, value: '#b91c1c' },
+		highlight: { el: null, value: '#0c4a6e' },
+		bg: { el: null, value: '#1c1917' }
+	});
+
+	const text_edit_options: TextEditOption[][] = [
+		[
+			{
+				onclick: () => editor_state.editor?.chain().focus().toggleBold().run(),
+				is_selected: () => editor_state.editor?.isActive('bold') ?? false,
+				title: 'Fett (STRG+B)',
+				icon: Bold
+			},
+			{
+				onclick: () => editor_state.editor?.chain().focus().toggleItalic().run(),
+				is_selected: () => editor_state.editor?.isActive('italic') ?? false,
+				title: 'Kursiv (STRG+I)',
+				icon: Italic
+			},
+			{
+				onclick: () => editor_state.editor?.chain().focus().toggleStrike().run(),
+				is_selected: () => editor_state.editor?.isActive('strike') ?? false,
+				title: 'Durchgestrichen',
+				icon: Strikethrough
+			}
+		],
+		[
+			{
+				onclick: () => editor_state.editor?.chain().focus().setColor(color_states.text.value).run(),
+				is_selected: () =>
+					editor_state.editor?.isActive('textStyle', { color: color_states.text.value }) ?? false,
+				icon: Baseline,
+				title: 'Textfarbe',
+				color: get_color_element(color_states.text)
+			},
+			{
+				onclick: () =>
+					editor_state.editor
+						?.chain()
+						.focus()
+						.toggleHighlight({ color: color_states.highlight.value })
+						.run(),
+				is_selected: () =>
+					editor_state.editor?.isActive('highlight', { color: color_states.highlight.value }) ??
+					false,
+				icon: Highlighter,
+				title: 'Markierungsfarbe',
+				color: get_color_element(color_states.highlight)
+			},
+			{
+				onclick: () => color_states.bg.el?.click(),
+				is_selected: () => false,
+				title: 'Hintergrundfarbe',
+				icon: PaintBucket
+			}
+		]
+	];
+
+	function get_color_element(color_state: ColorState) {
+		return {
+			color_string: () => color_state.value,
+			color_picker: () => color_state.el?.click()
+		};
+	}
+
+	async function show_text() {
+		const html =
+			editor_state.editor?.getHTML() +
+			`<style>:root {--background-color: ${color_states.bg.value} !important;}</style>`;
+		await run_on_all_selected_displays((d) => show_html(d.ip, html));
+	}
+
+	onMount(() => {
+		editor_state.editor = new Editor({
+			element: element,
+			extensions: [
+				StarterKit,
+				Placeholder.configure({
+					placeholder: 'Text hier eingeben ...'
+				}),
+				TextStyle,
+				Color,
+				Highlight.configure({
+					multicolor: true
+				})
+			],
+			content: '',
+			onTransaction: ({ editor }) => {
+				// Increment the state signal to force a re-render
+				editor_state = { editor };
+			},
+			autofocus: true
+		});
+	});
+	onDestroy(() => {
+		editor_state.editor?.destroy();
+	});
+</script>
+
+{#each Object.values(color_states) as color_state}
+	<input type="color" bind:this={color_state.el} bind:value={color_state.value} class="hidden" />
+{/each}
+
+<div data-testid="text-popup" class="flex flex-row gap-2 size-full">
+	<div
+		class="rounded-xl size-full shrink min-w-0 flex"
+		style="background-color: {color_states.bg.value};"
+	>
+		<div bind:this={element} class="size-full overflow-auto px-3 py-2"></div>
+	</div>
+
+	<div class="flex flex-col gap-2 justify-between">
+		<div class="flex flex-col gap-2">
+			{#each text_edit_options as edit_row}
+				<div class="flex flex-row gap-1">
+					{#each edit_row as option}
+						<div class="flex flex-row">
+							<button
+								title={option.title}
+								onclick={option.onclick}
+								class="p-1 {option.color
+									? 'rounded-l-xl'
+									: 'rounded-xl'} cursor-pointer duration-200 transition-colors {get_selectable_color_classes(
+									option.is_selected(),
+									{
+										bg: true,
+										hover: true,
+										active: true,
+										text: true
+									},
+									-100,
+									50
+								)}"
+							>
+								{#if option.icon}
+									{@const Icon = option.icon}
+									<Icon class="h-7 w-7" />
+								{/if}
+							</button>
+							{#if option.color}
+								<button
+									aria-label="Color"
+									onclick={option.color.color_picker}
+									title={option.title}
+									class="flex p-1 rounded-r-xl cursor-pointer duration-200 transition-colors justify-center items-center {get_selectable_color_classes(
+										option.is_selected(),
+										{
+											bg: true,
+											hover: true,
+											active: true,
+											text: true
+										},
+										-100,
+										50
+									)}"
+								>
+									<span
+										class="h-7 w-3 rounded-full"
+										style="background-color: {option.color.color_string()};"
+									></span>
+								</button>
+							{/if}
+						</div>
+					{/each}
+				</div>
+			{/each}
+		</div>
+
+		<Button click_function={show_text} className="w-full font-bold">Text anzeigen</Button>
+	</div>
+</div>
+
+<style>
+	:global(.tiptap) {
+		width: 100%;
+		height: 100%;
+		--tw-outline-style: none;
+		outline-style: none;
+	}
+
+	:global(.tiptap ul),
+	:global(.tiptap ol) {
+		padding-left: 1.5rem;
+	}
+
+	:global(.tiptap ul) {
+		list-style: disc;
+	}
+
+	:global(.tiptap ol) {
+		list-style: decimal;
+	}
+
+	:global(.tiptap p) {
+		margin-bottom: 0.5rem;
+	}
+	:global(.tiptap p.is-editor-empty:first-child::before) {
+		content: attr(data-placeholder);
+		pointer-events: none;
+		color: oklch(44.4% 0.011 73.639);
+		float: left;
+		height: 0;
+		opacity: 0.7;
+	}
+</style>

control/frontend/src/routes/test/+page.svelte

@@ -1,47 +0,0 @@
-<script>
-	import { Minus, Settings, TvMinimalPlay } from 'lucide-svelte';
-
-	import Button from '../../components/Button.svelte';
-	import { pinned_display_id } from '../../ts/stores/ui_behavior';
-	import { fade, slide } from 'svelte/transition';
-</script>
-
-<main class="bg-stone-900 h-dvh w-dvw text-stone-200 p-4 gap-4 grid grid-rows-[3rem_auto]">
-	<div class="w-[calc(100dvw-(8*var(--spacing)))] flex justify-between">
-		<span class="text-4xl font-bold content-center h-full"> PLG MuDiCS </span>
-		<Button className="aspect-square" bg="bg-stone-800">
-			<Settings></Settings>
-		</Button>
-	</div>
-	<div class="w-[calc(100dvw-(8*var(--spacing)))] grid grid-cols-2 gap-2">
-		<div class="h-[calc(100dvh-3rem-(12*var(--spacing)))] flex flex-col gap-2"></div>
-		<div
-			class="col-start-2 h-[calc(100dvh-3rem-(12*var(--spacing)))] rounded-2xl flex flex-col gap-2"
-		>
-			<div class="bg-stone-800 h-full rounded-2xl grid grid-rows-[2.5rem_auto]">
-				<div class="bg-stone-700 flex justify-between w-full p-1 rounded-t-2xl min-w-0 gap-2">
-					<span class="text-xl font-bold pl-2 content-center truncate min-w-0">
-						Dateien anzeigen und verwalten
-					</span>
-					<div class="flex flex-ro"></div>
-				</div>
-				<div class="flex flex-col gap-2 p-2 max-w-full overflow-hidden min-w-0">
-					<div class="flex flex-row justify-between gap-4 min-w-0">
-						<div class="flex flex-row gap-2 min-w-0 flex-1">
-							<Button className="px-3 flex items-center gap-3 min-w-0 flex-1 justify-start">
-								<TvMinimalPlay />
-								<!-- Text: nimmt Restbreite, darf schrumpfen & ellipsieren -->
-								<span class="truncate min-w-0 flex-1">Sehr lange Beschriftung für den Button</span>
-							</Button>
-							<div class="relative min-w-0 flex">
-								<button class="text-xl font-bold pl-2 content-center truncate min-w-0">
-									Dateien anzeigen und verwalten
-								</button>
-							</div>
-						</div>
-					</div>
-				</div>
-			</div>
-		</div>
-	</div>
-</main>

control/frontend/src/tailwind.config.js

@@ -1,220 +1,221 @@
 module.exports = {
-  content: ['./src/**/*.{html,js,svelte,ts}'],
+	content: ['./src/**/*.{html,js,svelte,ts}'],
-  safelist: [
+	safelist: [
-    'bg-stone-50',
+		'bg-stone-50',
-    'bg-stone-100',
+		'bg-stone-100',
-    'bg-stone-150',
+		'bg-stone-150',
-    'bg-stone-200',
+		'bg-stone-200',
-    'bg-stone-250',
+		'bg-stone-250',
-    'bg-stone-300',
+		'bg-stone-300',
-    'bg-stone-350',
+		'bg-stone-350',
-    'bg-stone-400',
+		'bg-stone-400',
-    'bg-stone-450',
+		'bg-stone-450',
-    'bg-stone-500',
+		'bg-stone-500',
-    'bg-stone-550',
+		'bg-stone-550',
-    'bg-stone-600',
+		'bg-stone-600',
-    'bg-stone-650',
+		'bg-stone-650',
-    'bg-stone-700',
+		'bg-stone-700',
-    'bg-stone-750',
+		'bg-stone-750',
-    'bg-stone-800',
+		'bg-stone-800',
-    'bg-stone-850',
+		'bg-stone-850',
-    'bg-stone-900',
+		'bg-stone-900',
-    'bg-stone-950',
+		'bg-stone-950',
 
-    'hover:bg-stone-50',
+		'hover:bg-stone-50',
-    'hover:bg-stone-100',
+		'hover:bg-stone-100',
-    'hover:bg-stone-150',
+		'hover:bg-stone-150',
-    'hover:bg-stone-200',
+		'hover:bg-stone-200',
-    'hover:bg-stone-250',
+		'hover:bg-stone-250',
-    'hover:bg-stone-300',
+		'hover:bg-stone-300',
-    'hover:bg-stone-350',
+		'hover:bg-stone-350',
-    'hover:bg-stone-400',
+		'hover:bg-stone-400',
-    'hover:bg-stone-450',
+		'hover:bg-stone-450',
-    'hover:bg-stone-500',
+		'hover:bg-stone-500',
-    'hover:bg-stone-550',
+		'hover:bg-stone-550',
-    'hover:bg-stone-600',
+		'hover:bg-stone-600',
-    'hover:bg-stone-650',
+		'hover:bg-stone-650',
-    'hover:bg-stone-700',
+		'hover:bg-stone-700',
-    'hover:bg-stone-750',
+		'hover:bg-stone-750',
-    'hover:bg-stone-800',
+		'hover:bg-stone-800',
-    'hover:bg-stone-850',
+		'hover:bg-stone-850',
-    'hover:bg-stone-900',
+		'hover:bg-stone-900',
-    'hover:bg-stone-950',
+		'hover:bg-stone-950',
 
-    'active:bg-stone-50',
+		'active:bg-stone-50',
-    'active:bg-stone-100',
+		'active:bg-stone-100',
-    'active:bg-stone-150',
+		'active:bg-stone-150',
-    'active:bg-stone-200',
+		'active:bg-stone-200',
-    'active:bg-stone-250',
+		'active:bg-stone-250',
-    'active:bg-stone-300',
+		'active:bg-stone-300',
-    'active:bg-stone-350',
+		'active:bg-stone-350',
-    'active:bg-stone-400',
+		'active:bg-stone-400',
-    'active:bg-stone-450',
+		'active:bg-stone-450',
-    'active:bg-stone-500',
+		'active:bg-stone-500',
-    'active:bg-stone-550',
+		'active:bg-stone-550',
-    'active:bg-stone-600',
+		'active:bg-stone-600',
-    'active:bg-stone-650',
+		'active:bg-stone-650',
-    'active:bg-stone-700',
+		'active:bg-stone-700',
-    'active:bg-stone-750',
+		'active:bg-stone-750',
-    'active:bg-stone-800',
+		'active:bg-stone-800',
-    'active:bg-stone-850',
+		'active:bg-stone-850',
-    'active:bg-stone-900',
+		'active:bg-stone-900',
-    'active:bg-stone-950',
+		'active:bg-stone-950',
 
-    'focus:bg-stone-50',
+		'focus:bg-stone-50',
-    'focus:bg-stone-100',
+		'focus:bg-stone-100',
-    'focus:bg-stone-150',
+		'focus:bg-stone-150',
-    'focus:bg-stone-200',
+		'focus:bg-stone-200',
-    'focus:bg-stone-250',
+		'focus:bg-stone-250',
-    'focus:bg-stone-300',
+		'focus:bg-stone-300',
-    'focus:bg-stone-350',
+		'focus:bg-stone-350',
-    'focus:bg-stone-400',
+		'focus:bg-stone-400',
-    'focus:bg-stone-450',
+		'focus:bg-stone-450',
-    'focus:bg-stone-500',
+		'focus:bg-stone-500',
-    'focus:bg-stone-550',
+		'focus:bg-stone-550',
-    'focus:bg-stone-600',
+		'focus:bg-stone-600',
-    'focus:bg-stone-650',
+		'focus:bg-stone-650',
-    'focus:bg-stone-700',
+		'focus:bg-stone-700',
-    'focus:bg-stone-750',
+		'focus:bg-stone-750',
-    'focus:bg-stone-800',
+		'focus:bg-stone-800',
-    'focus:bg-stone-850',
+		'focus:bg-stone-850',
-    'focus:bg-stone-900',
+		'focus:bg-stone-900',
-    'focus:bg-stone-950',
+		'focus:bg-stone-950',
 
-    'text-stone-50',
+		'text-stone-50',
-    'text-stone-150',
+		'text-stone-150',
-    'text-stone-200',
+		'text-stone-200',
-    'text-stone-250',
+		'text-stone-250',
-    'text-stone-300',
+		'text-stone-300',
-    'text-stone-350',
+		'text-stone-350',
-    'text-stone-100',
+		'text-stone-100',
-    'text-stone-400',
+		'text-stone-400',
-    'text-stone-450',
+		'text-stone-450',
-    'text-stone-500',
+		'text-stone-500',
-    'text-stone-550',
+		'text-stone-550',
-    'text-stone-600',
+		'text-stone-600',
-    'text-stone-650',
+		'text-stone-650',
-    'text-stone-700',
+		'text-stone-700',
-    'text-stone-750',
+		'text-stone-750',
-    'text-stone-800',
+		'text-stone-800',
-    'text-stone-850',
+		'text-stone-850',
-    'text-stone-900',
+		'text-stone-900',
-    'text-stone-950',
+		'text-stone-950',
 
-    'group-hover:text-stone-100',
+		'group-hover:text-stone-100',
-    'group-hover:text-stone-150',
+		'group-hover:text-stone-150',
-    'group-hover:text-stone-200',
+		'group-hover:text-stone-200',
-    'group-hover:text-stone-50',
+		'group-hover:text-stone-50',
-    'group-hover:text-stone-250',
+		'group-hover:text-stone-250',
-    'group-hover:text-stone-300',
+		'group-hover:text-stone-300',
-    'group-hover:text-stone-350',
+		'group-hover:text-stone-350',
-    'group-hover:text-stone-400',
+		'group-hover:text-stone-400',
-    'group-hover:text-stone-450',
+		'group-hover:text-stone-450',
-    'group-hover:text-stone-500',
+		'group-hover:text-stone-500',
-    'group-hover:text-stone-550',
+		'group-hover:text-stone-550',
-    'group-hover:text-stone-600',
+		'group-hover:text-stone-600',
-    'group-hover:text-stone-650',
+		'group-hover:text-stone-650',
-    'group-hover:text-stone-700',
+		'group-hover:text-stone-700',
-    'group-hover:text-stone-750',
+		'group-hover:text-stone-750',
-    'group-hover:text-stone-800',
+		'group-hover:text-stone-800',
-    'group-hover:text-stone-850',
+		'group-hover:text-stone-850',
-    'group-hover:text-stone-900',
+		'group-hover:text-stone-900',
-    'group-hover:text-stone-950',
+		'group-hover:text-stone-950',
 
-    'group-active:text-stone-50',
+		'group-active:text-stone-50',
-    'group-active:text-stone-100',
+		'group-active:text-stone-100',
-    'group-active:text-stone-150',
+		'group-active:text-stone-150',
-    'group-active:text-stone-200',
+		'group-active:text-stone-200',
-    'group-active:text-stone-250',
+		'group-active:text-stone-250',
-    'group-active:text-stone-300',
+		'group-active:text-stone-300',
-    'group-active:text-stone-350',
+		'group-active:text-stone-350',
-    'group-active:text-stone-400',
+		'group-active:text-stone-400',
-    'group-active:text-stone-450',
+		'group-active:text-stone-450',
-    'group-active:text-stone-500',
+		'group-active:text-stone-500',
-    'group-active:text-stone-550',
+		'group-active:text-stone-550',
-    'group-active:text-stone-600',
+		'group-active:text-stone-600',
-    'group-active:text-stone-650',
+		'group-active:text-stone-650',
-    'group-active:text-stone-700',
+		'group-active:text-stone-700',
-    'group-active:text-stone-750',
+		'group-active:text-stone-750',
-    'group-active:text-stone-800',
+		'group-active:text-stone-800',
-    'group-active:text-stone-850',
+		'group-active:text-stone-850',
-    'group-active:text-stone-950',
+		'group-active:text-stone-950',
-    'group-active:text-stone-900',
+		'group-active:text-stone-900',
 
-    'border-stone-50',
+		'border-stone-50',
-    'border-stone-100',
+		'border-stone-100',
-    'border-stone-150',
+		'border-stone-150',
-    'border-stone-200',
+		'border-stone-200',
-    'border-stone-250',
+		'border-stone-250',
-    'border-stone-300',
+		'border-stone-300',
-    'border-stone-350',
+		'border-stone-350',
-    'border-stone-400',
+		'border-stone-400',
-    'border-stone-450',
+		'border-stone-450',
-    'border-stone-500',
+		'border-stone-500',
-    'border-stone-550',
+		'border-stone-550',
-    'border-stone-600',
+		'border-stone-600',
-    'border-stone-650',
+		'border-stone-650',
-    'border-stone-700',
+		'border-stone-700',
-    'border-stone-750',
+		'border-stone-750',
-    'border-stone-800',
+		'border-stone-800',
-    'border-stone-850',
+		'border-stone-850',
-    'border-stone-900',
+		'border-stone-900',
-    'border-stone-950',
+		'border-stone-950',
 
-    'group-hover:border-stone-50',
+		'group-hover:border-stone-50',
-    'group-hover:border-stone-100',
+		'group-hover:border-stone-100',
-    'group-hover:border-stone-150',
+		'group-hover:border-stone-150',
-    'group-hover:border-stone-200',
+		'group-hover:border-stone-200',
-    'group-hover:border-stone-250',
+		'group-hover:border-stone-250',
-    'group-hover:border-stone-300',
+		'group-hover:border-stone-300',
-    'group-hover:border-stone-350',
+		'group-hover:border-stone-350',
-    'group-hover:border-stone-400',
+		'group-hover:border-stone-400',
-    'group-hover:border-stone-450',
+		'group-hover:border-stone-450',
-    'group-hover:border-stone-500',
+		'group-hover:border-stone-500',
-    'group-hover:border-stone-550',
+		'group-hover:border-stone-550',
-    'group-hover:border-stone-600',
+		'group-hover:border-stone-600',
-    'group-hover:border-stone-650',
+		'group-hover:border-stone-650',
-    'group-hover:border-stone-700',
+		'group-hover:border-stone-700',
-    'group-hover:border-stone-750',
+		'group-hover:border-stone-750',
-    'group-hover:border-stone-800',
+		'group-hover:border-stone-800',
-    'group-hover:border-stone-850',
+		'group-hover:border-stone-850',
-    'group-hover:border-stone-950',
+		'group-hover:border-stone-950',
-    'group-hover:border-stone-900',
+		'group-hover:border-stone-900',
 
-    'group-active:border-stone-50',
+		'group-active:border-stone-50',
-    'group-active:border-stone-100',
+		'group-active:border-stone-100',
-    'group-active:border-stone-150',
+		'group-active:border-stone-150',
-    'group-active:border-stone-200',
+		'group-active:border-stone-200',
-    'group-active:border-stone-250',
+		'group-active:border-stone-250',
-    'group-active:border-stone-300',
+		'group-active:border-stone-300',
-    'group-active:border-stone-350',
+		'group-active:border-stone-350',
-    'group-active:border-stone-400',
+		'group-active:border-stone-400',
-    'group-active:border-stone-450',
+		'group-active:border-stone-450',
-    'group-active:border-stone-500',
+		'group-active:border-stone-500',
-    'group-active:border-stone-550',
+		'group-active:border-stone-550',
-    'group-active:border-stone-600',
+		'group-active:border-stone-600',
-    'group-active:border-stone-650',
+		'group-active:border-stone-650',
-    'group-active:border-stone-700',
+		'group-active:border-stone-700',
-    'group-active:border-stone-750',
+		'group-active:border-stone-750',
-    'group-active:border-stone-800',
+		'group-active:border-stone-800',
-    'group-active:border-stone-850',
+		'group-active:border-stone-850',
-    'group-active:border-stone-900',
+		'group-active:border-stone-900',
-    'group-active:border-stone-950',
+		'group-active:border-stone-950',
 
-    'h-15',
+		'h-10',
-    'h-20',
+		'h-15',
-    'h-25',
+		'h-20',
-    'h-30',
+		'h-25',
-    'h-35',
+		'h-30',
-    'h-40',
+		'h-35',
+		'h-40',
 
-    'right-0',
+		'right-0',
-    'left-0',
+		'left-0',
 
-    'hover:bg-red-400',
+		'hover:bg-red-400',
-    'active:bg-red-500',
+		'active:bg-red-500',
 
-    'hover:bg-stone-600/70',
+		'hover:bg-stone-600/70',
-    'active:bg-stone-500/80',
+		'active:bg-stone-500/80'
-  ],
+	]
-}
+};

control/frontend/src/ts/api_handler.ts

@@ -1,117 +0,0 @@
-import { notifications } from "./stores/notification";
-import { to_display_status, type DisplayStatus, type FolderElement } from "./types";
-import { get_uuid } from "./utils";
-
-export async function get_screenshot(ip: string) {
-    const options = { method: 'PATCH' };
-    return await request_display(ip, '/takeScreenshot', options);
-}
-
-export async function open_file(ip: string, path_to_file: string): Promise<boolean> {
-    const options = { method: 'PATCH', headers: { 'content-type': 'application/octet-stream' } };
-    const raw_response = await request_display(ip, `/file${path_to_file}`, options);
-    return !!raw_response;
-}
-
-export async function get_file_data(ip: string, path: string): Promise<FolderElement[]> {
-    interface FileInfo {
-        name: string;
-        type: string;
-        size: string;
-        created: string;
-    }
-
-    const options = {
-        method: 'PATCH',
-        headers: { 'content-type': 'application/json' },
-        body: JSON.stringify({
-            command: `cd ".${path}" && find . -maxdepth 1 -mindepth 1 -print0 | while IFS= read -r -d '' f; do
-  typ=$(file -b --mime-type -- "$f")
-  size=$(stat -c '%s' -- "$f")
-  created=$(stat -c '%w' -- "$f")
-  [ "$created" = "-" ] && created=$(stat -c '%y' -- "$f")
-  jq -n --arg name "$f" --arg type "$typ" --arg size "$size" --arg created "$created" \
-    '{name:$name, type:$type, size:($size|tostring), created:$created}' | tr -d '\n'
-  echo
-done
-` })
-    };
-    const raw_response = await request_display(ip, '/shellCommand', options);
-    if (!raw_response) return [];
-    const response: FileInfo[] = raw_response.stdout.trim()
-        .split("\n")
-        .filter(Boolean)
-        .map((line: string) => JSON.parse(line) as FileInfo);
-
-    const folder_element_list: FolderElement[] = [];
-
-    for (const response_element of response) {
-        // filter hidden files (start with '.' -> './.config')
-        if (response_element.name.charAt(2) !== '.') {
-            const folder_element: FolderElement = {
-                id: get_uuid(),
-                hash: JSON.stringify(response),
-                thumbnail_url: null,
-                name: response_element.name.slice(2), // remove "./"
-                type: response_element.type,
-                date_created: new Date(response_element.created),
-                size: Number(response_element.size),
-            };
-            folder_element_list.push(folder_element);
-        }
-    }
-    return folder_element_list;
-}
-
-
-
-export async function ping_ip(ip: string): Promise<DisplayStatus> {
-    const raw_response = await request_control(`/ping?ip=${ip}`, { method: 'GET' });
-    if (!raw_response) return null;
-    return raw_response.status ? to_display_status(raw_response.status) : null;
-}
-
-
-
-
-async function request_display(ip: string, api_route: string, options: { method: string, headers?: Record<string, string>, body?: any }): Promise<null | any> {
-    const url = `http://${ip}:1323/api${api_route}`;
-    return await raw_request(url, options);
-}
-
-async function request_control(api_route: string, options: { method: string, headers?: Record<string, string>, body?: any }): Promise<null | any> {
-    const url = `${window.location.origin}/api${api_route}`;
-    return await raw_request(url, options);
-}
-
-
-async function raw_request(url: string, options: { method: string, headers?: Record<string, string>, body?: any }): Promise<null | any> {
-    try {
-        const cache_buster = `${url.includes('?') ? '&' : '?'}=${Date.now()}`;
-        console.log(url + cache_buster)
-        const response = await fetch(url + cache_buster, options);
-        if (!response.ok) {
-            console.error(`HTTP error! Status: ${response.status}`);
-            notifications.push("error", `HTTP-Fehler bei API-Anfrage`, `${url}\nHTTP-Status: ${response.status}`);
-        }
-        const contentType = response.headers.get("content-type") || "";
-        if (!contentType.includes("application/json")) {
-            return await response.blob();
-        } else {
-            const json = await response.json();
-            if (json.error && json.error !== '') {
-                notifications.push("error", `Interner Fehler bei API-Anfrage`, `${url}\nJSON: ${JSON.stringify(json)}`);
-            }
-            return json;
-        }
-    } catch (error: any) {
-        if (error instanceof TypeError && /fetch|NetworkError/i.test(error.message)) {
-            console.log("Request failed - Is the targeted device online?")
-        } else {
-            console.log(typeof error, error instanceof TypeError, error.message);
-            console.error(error);
-            notifications.push("error", `Fehler bei API-Anfrage`, `${url}\nFehler: ${error}`);
-        }
-        return null;
-    }
-}

control/frontend/src/ts/main.ts

@@ -1,23 +0,0 @@
-import { get } from "svelte/store";
-import { displays, update_displays_with_map } from "./stores/displays"
-import { ping_ip } from "./api_handler";
-import type { Display } from "./types";
-import { change_file_path, update_all_display_files } from "./stores/files";
-
-const update_display_status_interval_seconds = 20;
-
-export function on_start() {
-    update_all_display_status();
-    setInterval(update_all_display_status, update_display_status_interval_seconds * 1000);
-    update_all_display_files('/');
-}
-
-
-async function update_all_display_status() {
-    update_displays_with_map(async (display: Display) => {
-        const new_status = await ping_ip(display.ip);
-        if (new_status === null && display.status !== null) return display;
-        return { ...display, status: new_status, };
-    });
-    console.log("Display Status updated")
-}

control/frontend/src/ts/stores/displays.ts

@@ -1,171 +0,0 @@
-import { get, writable, type Writable } from "svelte/store";
-import type { Display, DisplayGroup, DisplayStatus } from "../types";
-import { is_selected, select, selected_display_ids } from "./select";
-import { get_uuid, image_content_hash } from "../utils";
-import { get_screenshot } from "../api_handler";
-import DisplayGroupObject from "../../components/DisplayGroupObject.svelte";
-
-export const displays: Writable<DisplayGroup[]> = writable<DisplayGroup[]>([{
-    id: get_uuid(),
-    data: []
-}]);
-
-
-export function is_display_name_taken(name: string): boolean {
-    const display_groups = get(displays);
-    return display_groups.some(group =>
-        group.data.some(display => display.name.trim().toLowerCase() === name.trim().toLowerCase())
-    );
-}
-
-export function add_display(ip: string, mac: string | null, name: string, status: DisplayStatus) {
-    displays.update((displays: DisplayGroup[]) => {
-        displays[0].data.push({ id: get_uuid(), ip, preview_url: null, preview_timeout_id: null, mac, name, status });
-        return displays;
-    });
-}
-
-export function edit_display_data(display_id: string, ip: string, mac: string | null, name: string) {
-    update_displays_with_map((display: Display) => {
-        if (display.id !== display_id) return display;
-        return { ...display, ip: ip, mac: mac, name: name };
-    })
-}
-
-export function remove_display(display_id: string) {
-    console.log(display_id);
-    displays.update((displays: DisplayGroup[]) => {
-        displays = displays.map(display_group => ({
-            ...display_group,
-            data: display_group.data.filter(display => display.id !== display_id)
-        }));
-        return displays;
-    });
-
-    // TODO remove ID from Files usw.
-}
-
-export function all_displays_of_group_selected(display_group: DisplayGroup, current_selected_displays: string[]) {
-    if (display_group.data.length === 0) return false;
-    for (const display of display_group.data) {
-        if (!is_selected(display.id, current_selected_displays)) {
-            return false;
-        }
-    }
-    return true;
-}
-
-export function select_all_of_group(display_group: DisplayGroup, new_value: boolean | null = null) {
-    for (const display of display_group.data) {
-        select(selected_display_ids, display.id, new_value);
-    }
-}
-
-export function set_new_display_group_data(display_group_id: string, new_data: Display[]) {
-    displays.update((displays: DisplayGroup[]) => {
-        for (const display_group of displays) {
-            if (display_group.id === display_group_id) {
-                display_group.data = new_data;
-            }
-        }
-        return displays;
-    });
-}
-
-export function get_display_by_id(display_id: string, display_group_array: DisplayGroup[]) {
-    const displays_array = display_group_array;
-    for (const display_group of displays_array) {
-        for (const display of display_group.data) {
-            if (display.id === display_id) {
-                return display;
-            }
-        }
-    }
-    return null;
-}
-
-
-export function add_empty_display_group() {
-    displays.update((displays: DisplayGroup[]) => {
-        displays.push({
-            id: get_uuid(),
-            data: [],
-        });
-        return displays;
-    });
-}
-
-
-export function remove_empty_display_groups() {
-    displays.update((displays: DisplayGroup[]) => {
-        for (let i = displays.length - 1; i >= 0; i--) {
-            if (displays[i].data.length === 0) {
-                displays.splice(i, 1);
-            }
-        }
-        return displays;
-    });
-}
-
-export async function update_screenshot(display_id: string, check_type: "first_check" | "last_check_different" | "last_check_same" = "first_check") {
-    const display_ip = get_display_by_id(display_id, get(displays))?.ip;
-    if (!display_ip) return;
-    const new_blob = await get_screenshot(display_ip);
-    const display = get_display_by_id(display_id, get(displays));
-
-    let update_needed = check_type === "first_check";
-    if (check_type !== "first_check") {
-        if (display && display.preview_url) {
-            const old_blob = await fetch(display.preview_url).then(r => r.blob());
-            const new_hash = await image_content_hash(new_blob);
-            const old_hash = await image_content_hash(old_blob);
-            console.log(old_hash, new_hash);
-            update_needed = old_hash !== new_hash; // if different -> update
-        }
-    }
-
-    let new_preview_timeout_id: number | null = null;
-    if (update_needed || check_type === "last_check_different") {
-        new_preview_timeout_id = setTimeout(async () => { await update_screenshot(display_id, update_needed ? "last_check_different" : "last_check_same") }, 2 * 1000);
-    }
-    if (display?.preview_timeout_id) {
-        clearInterval(display.preview_timeout_id);
-    }
-
-    if (update_needed) {
-        update_displays_with_map((display: Display) => {
-            if (display.id !== display_id) return display;
-            if (display.preview_url) {
-                URL.revokeObjectURL(display.preview_url);
-            }
-            const new_url = URL.createObjectURL(new_blob);
-            return { ...display, preview_url: new_url, preview_timeout_id: new_preview_timeout_id };
-        })
-    }
-}
-
-
-export async function update_displays_with_map(update_function: (display: Display) => Display | Promise<Display>) {
-    const display_groups = get(displays);
-    const updated_groups = await Promise.all(
-        display_groups.map(async (group: DisplayGroup) => ({
-            ...group,
-            data: await Promise.all(group.data.map(update_function)),
-        }))
-    );
-    displays.set(updated_groups);
-}
-
-
-
-
-add_testing_displays();
-function add_testing_displays() {
-    // const names = ["Vorne Rechts", "Vorne Links", "Vorne Mitte", "Fernseher Rechts", "Fernseher Bühne", "UIUIUIUIUIUIUISEHRLANGERTEXT DER IST WIRKLICH LANG, DER TEXT, so lang, dass er wirklich nirgendswo hinpasst, nichtmal da oben /\\"];
-    // for (const name of names) {
-    //     add_display("127.0.0.1", "00:1A:2B:3C:4D:5E", name, "Offline");
-    // }
-
-    add_display("127.0.0.1", "00:1A:2B:3C:4D:5E", "PC", "host_offline");
-    // add_display("192.168.178.111", "D4:81:D7:C0:DF:3C", "Laptop", "host_offline");
-}

control/frontend/src/ts/stores/files.ts

@@ -1,203 +0,0 @@
-import { get, writable, type Writable } from "svelte/store";
-import type { Display, FolderElement } from "../types";
-import { displays, update_displays_with_map } from "./displays";
-import { selected_display_ids, selected_file_ids } from "./select";
-import { get_file_data } from "../api_handler";
-import { get_uuid } from "../utils";
-import type { Folder } from "lucide-svelte";
-import { notifications } from "./notification";
-
-export const all_files: Writable<Record<string, Record<string, FolderElement[]>>> = writable<Record<string, Record<string, FolderElement[]>>>({});
-// {
-// path: {
-//          display_id: FolderElement[]
-//          ...
-//      },
-// path2: {
-//          display_id: FolderElement[]
-//          ...
-//      },
-// ...
-// }
-
-export const current_file_path: Writable<string> = writable<string>('/');
-
-
-export function change_file_path(new_path: string) {
-    current_file_path.update(() => {
-        return new_path;
-    });
-    selected_file_ids.update(() => {
-        return [];
-    })
-    setTimeout(async () => { await update_all_display_files(new_path) }, 0);
-}
-
-export function get_display_ids_where_file_is_missing(path: string, file: FolderElement, selected_display_ids: string[], all_files: Record<string, Record<string, FolderElement[]>>): string[][] {
-    if (!all_files.hasOwnProperty(path)) return [];
-    const missing: string[] = [];
-    const colliding: string[] = [];
-    Display:
-    for (const selected_display_id of selected_display_ids) {
-        if (!all_files[path].hasOwnProperty(selected_display_id)) {
-            missing.push(selected_display_id);
-            continue;
-        }
-        for (const folder_element of all_files[path][selected_display_id]) {
-            if (folder_element.name === file.name) {
-                if (folder_element.hash !== file.hash) {
-                    colliding.push(selected_display_id);
-                }
-                continue Display;
-            }
-        }
-        missing.push(selected_display_id);
-    }
-    return [missing, colliding];
-}
-
-export async function update_all_display_files(path: string) {
-    for (const display_group of get(displays)) {
-        for (const display of display_group.data) {
-            await update_folder_elements_recursively(display, path);
-        }
-    }
-}
-
-async function update_folder_elements_recursively(display: Display, file_path: string = '/'): Promise<number> {
-    const new_folder_elements = await get_file_data(display.ip, file_path);
-    all_files.update((files: Record<string, Record<string, FolderElement[]>>) => {
-        if (!files.hasOwnProperty(file_path)) {
-            files[file_path] = {};
-        }
-        if (!files[file_path].hasOwnProperty(display.id)) {
-            files[file_path][display.id] = [];
-        }
-
-        const existing_folder_elements = files[file_path].hasOwnProperty(display.id) ? files[file_path][display.id] : [];
-
-        const diff = get_folder_elements_difference(existing_folder_elements, new_folder_elements);
-        files[file_path][display.id].push(...diff.new);
-        return remove_folder_elements_recursively(files, display, diff.deleted, file_path);
-    })
-
-    let folder_size = 0;
-    for (const element of new_folder_elements) {
-        if (element.type === 'inode/directory') {
-            const folder_content_size = await update_folder_elements_recursively(display, file_path + element.name + '/');
-            folder_size += folder_content_size;
-            // Update foldersize
-            all_files.update((files: Record<string, Record<string, FolderElement[]>>) => {
-                for (const current_folder_element of files[file_path][display.id]) {
-                    if (current_folder_element.id === element.id) {
-                        current_folder_element.size = folder_content_size;
-                    }
-                }
-                return files;
-            })
-        } else {
-            folder_size += element.size;
-        }
-    }
-    return folder_size;
-}
-
-function remove_folder_elements_recursively(files: Record<string, Record<string, FolderElement[]>>, display: Display, folder_elements: FolderElement[], file_path: string): Record<string, Record<string, FolderElement[]>> {
-    if (!files.hasOwnProperty(file_path) || !files[file_path].hasOwnProperty(display.id)) {
-        console.error("File remove path does not exist:", files, display, folder_elements, file_path);
-        notifications.push("error", "Fehler beim Aktualisieren der Dateien", `File remove path does not exist: ${file_path} display_ip: ${display.ip}`);
-        return {};
-    }
-    for (const folder_element of folder_elements) {
-        files[file_path][display.id] = files[file_path][display.id].filter((f) => f.id !== folder_element.id);
-
-        if (folder_element.type === 'inode/directory') {
-            const new_file_path = file_path + folder_element.name + '/';
-            if (!files.hasOwnProperty(new_file_path) || !files[new_file_path].hasOwnProperty(display.id)) {
-                console.error("File remove path does not exist (recursion):", files, display, folder_elements, file_path, new_file_path);
-                notifications.push("error", "Fehler beim Aktualisieren der Dateien", `File remove path does not exist (recursion): ${new_file_path} display_ip: ${display.ip}`);
-                return {};
-            }
-            const sub_folder = files[new_file_path][display.id];
-            remove_folder_elements_recursively(files, display, sub_folder, new_file_path);
-        }
-    }
-
-    return files;
-}
-
-function get_folder_elements_difference(old_elements: FolderElement[], new_elements: FolderElement[]): { deleted: FolderElement[], new: FolderElement[] } {
-    const old_hashes = new Set(old_elements.map(e => e.hash));
-    const new_hashes = new Set(new_elements.map(e => e.hash));
-
-    const only_in_old = old_elements.filter(e => !new_hashes.has(e.hash));
-    const only_in_new = new_elements.filter(e => !old_hashes.has(e.hash));
-    return { deleted: only_in_old, new: only_in_new };
-}
-
-
-
-// export function updates_files_on_display(display_id: string, new_folder_elements: FolderElement[], file_path: string) {
-//     all_files.update((files) => {
-//         if (!files.hasOwnProperty(file_path)) {
-//             files[file_path] = {};
-//         }
-//         files[file_path][display_id] = new_folder_elements;
-//         return files;
-//     });
-// }
-
-// async function get_files_on_all_displays(current_file_path: string) {
-//     for (const display_group of get(displays)) {
-//         for (const display of display_group.data) {
-//             const new_folder_elements = await get_file_data(display.ip, current_file_path);
-//             updates_files_on_display(display.id, new_folder_elements, current_file_path)
-//             console.log(new_folder_elements)
-//         }
-//     }
-// }
-
-
-export function get_current_folder_elements(all_files: Record<string, Record<string, FolderElement[]>>, current_file_path: string, selected_display_ids: string[]) {
-    if (!all_files.hasOwnProperty(current_file_path)) return [];
-
-    const files_on_display_array = all_files[current_file_path];
-    const files: FolderElement[] = [];
-    for (const key of Object.keys(files_on_display_array)) {
-        if (selected_display_ids.includes(key)) {
-            FileOnDisplay:
-            for (const file_on_display of files_on_display_array[key]) {
-                for (const existing_file of files) {
-                    if (file_on_display.name === existing_file.name) {
-                        if (file_on_display.hash === existing_file.hash) {
-                            continue FileOnDisplay;
-                        }
-                    }
-                }
-                files.push(file_on_display);
-            }
-        }
-    }
-
-    return sort_files(files);
-}
-
-function sort_files(files: FolderElement[]) {
-    files.sort((a, b) => {
-        const isDirA = a.type === 'inode/directory';
-        const isDirB = b.type === 'inode/directory';
-
-        // Ordner zuerst
-        if (isDirA && !isDirB) return -1;
-        if (!isDirA && isDirB) return 1;
-
-        // Danach alphabetisch nach name (case-insensitive)
-        const nameCompare = a.name.localeCompare(b.name, undefined, { sensitivity: 'base' });
-        if (nameCompare !== 0) return nameCompare;
-
-        // Wenn name gleich, absteigend nach date_created
-        return b.date_created.getTime() - a.date_created.getTime();
-    });
-    return files;
-}
-

control/frontend/src/ts/stores/select.ts

@@ -1,23 +0,0 @@
-import { writable, type Writable } from "svelte/store";
-
-export const selected_file_ids: Writable<string[]> = writable<string[]>([]);
-export const selected_display_ids: Writable<string[]> = writable<string[]>([]);
-
-
-export function select(selected_ids: Writable<string[]>, id: string, new_value: boolean | null = null) {
-    selected_ids.update((all_ids: string[]) => {
-        if (all_ids.includes(id)) {
-            const index = all_ids.indexOf(id);
-            if (index > -1 && new_value !== true) {
-                all_ids.splice(index, 1);
-            }
-        } else if (new_value !== false) {
-            all_ids.push(id);
-        }
-        return all_ids;
-    });
-}
-
-export function is_selected(id: string, selected_ids: string[]): boolean {
-    return selected_ids.includes(id);
-}

control/frontend/src/ts/stores/ui_behavior.ts

@@ -1,72 +0,0 @@
-import { writable, type Writable } from "svelte/store";
-
-export const dnd_flip_duration_ms = 300;
-
-const heights_options: Record<string, { min: number; max: number; step: number }> = {
-    display: {
-        min: 15,
-        max: 40,
-        step: 5,
-    },
-    file: {
-        min: 10,
-        max: 20,
-        step: 5,
-    }
-}
-
-export const current_height: Writable<Record<string, number>> = writable<Record<string, number>>({
-    display: 25,
-    file: 10,
-});
-
-
-export const is_group_drag: Writable<boolean> = writable<boolean>(false);
-export const is_display_drag: Writable<boolean> = writable<boolean>(false);
-
-export const pinned_display_id: Writable<string | null> = writable<string | null>(null);
-
-
-export function change_height(key: 'display' | 'file', factor: number) {
-    current_height.update((height) => {
-        height[key] = next_height_step_size(key, height, factor) || height[key];
-        return height;
-    });
-}
-
-export function next_height_step_size(key: 'display' | 'file', current_height_array: Record<string, number>, factor: number): number {
-    const new_size = current_height_array[key] + (factor * heights_options[key].step);
-    if (new_size > heights_options[key].max || new_size < heights_options[key].min) {
-        return 0;
-    } else {
-        return new_size;
-    }
-}
-
-
-
-
-export function get_selectable_color_classes(
-    selected: boolean,
-    returning_classes: { bg?: boolean; hover?: boolean; active?: boolean; text?: boolean } = {},
-    base_bg_distance: number = 0,
-    shifted_distance: number = 0
-) {
-    let base_bg = selected ? 'bg-stone-400' : 'bg-stone-600';
-    const base_text = selected ? 'text-stone-950' : 'text-stone-200';
-    base_bg = get_shifted_color(base_bg, base_bg_distance);
-
-    const { bg = false, hover = false, active = false, text = false } = returning_classes;
-
-    const out: string[] = [];
-    if (bg) out.push(base_bg);
-    if (hover) out.push('hover:' + get_shifted_color(base_bg, 100 + shifted_distance));
-    if (active) out.push('active:' + get_shifted_color(base_bg, 150 + shifted_distance));
-    if (text) out.push(base_text);
-
-    return out.join(' ');
-}
-
-export function get_shifted_color(base_color: string, distance: number): string {
-    return base_color.replace(/(\d+)(?=(?:\/\d+)?$)/, (m: string) => String(+Number(m) - distance));
-}

control/frontend/src/ts/types.ts

@@ -1,112 +0,0 @@
-import { FileBox, FileImage, FileVideoCamera, ImagePlay, type X } from "lucide-svelte";
-import type { Snippet } from "svelte";
-
-export type SupportedFileType = {
-    display_name:
-    string; mime_type:
-    string; icon: typeof X;
-};
-
-export const supported_file_types: Record<string, SupportedFileType> = {
-    '.mp4': {
-        display_name: 'MP4',
-        mime_type: 'video/mp4',
-        icon: FileVideoCamera,
-    },
-    '.jpg': {
-        display_name: 'JPG',
-        mime_type: 'image/jpg',
-        icon: FileImage,
-    },
-    '.jpeg': {
-        display_name: 'JPG',
-        mime_type: 'image/jpeg',
-        icon: FileImage,
-    },
-    '.png': {
-        display_name: 'PNG',
-        mime_type: 'image/png',
-        icon: FileImage,
-    },
-    '.gif': {
-        display_name: 'GIF',
-        mime_type: 'image/gif',
-        icon: ImagePlay,
-    },
-    '.pptx': {
-        display_name: 'PPTX',
-        mime_type: 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
-        icon: FileBox,
-    },
-    '.odp': {
-        display_name: 'ODP',
-        mime_type: 'application/vnd.oasis.opendocument.presentation',
-        icon: FileBox,
-    }
-}
-
-export type FolderElement = {
-    id?: string;
-    hash: string | null;
-    thumbnail_url: string | null;
-    name: string;
-    type: string;
-    date_created: Date;
-    size: number;
-}
-
-
-export type Display = {
-    id: string;
-    ip: string;
-    preview_url: string | null;
-    preview_timeout_id: number | null;
-    mac: string | null;
-    name: string;
-    status: DisplayStatus;
-}
-
-export type DisplayGroup = {
-    id: string;
-    data: Display[];
-};
-
-
-export type MenuOption = {
-    icon?: typeof X;
-    name: string;
-    class?: string;
-    on_select?: () => void;
-    disabled?: boolean;
-}
-
-export type PopupContent = {
-    open: boolean;
-    snippet: Snippet<[string]> | null;
-    snippet_arg?: string;
-    title: string;
-    title_class?: string;
-    title_icon?: typeof X | null;
-    closable?: boolean;
-}
-
-export type DisplayStatus = "host_offline" | "app_offline" | "app_online" | null;
-
-export function to_display_status(value: string): DisplayStatus {
-    return ["host_offline", "app_offline", "app_online"].includes(value)
-        ? (value as DisplayStatus)
-        : null;
-}
-
-export function display_status_to_info(status: DisplayStatus): string {
-    switch (status) {
-        case 'app_online':
-            return 'Online';
-        case 'app_offline':
-            return 'Lädt';
-        case 'host_offline':
-            return 'Offline';
-        case null:
-            return '???';
-    }
-}

control/frontend/src/ts/utils.ts

@@ -1,42 +0,0 @@
-export function get_uuid(): string {
-    return crypto.randomUUID();
-}
-
-export function get_file_size_display_string(size: number, toFixed: number|null = null): string {
-    if (size === 0) return "0 B";
-
-    const k = 1024;
-    const sizes = ["B", "KB", "MB", "GB", "TB"];
-
-    const i = Math.floor(Math.log(size) / Math.log(k));
-    const value = size / Math.pow(k, i);
-
-    const size_string = `${value.toFixed(toFixed !== null ? toFixed : Math.max(0, 2 - Math.floor(Math.log10(value))))} ${sizes[i]}`;
-
-    return size_string.replace('.', ',');
-}
-
-
-export async function image_content_hash(blob: Blob, size = 32): Promise<number> {
-  // Blob → ImageBitmap (GPU-dekodiert, superschnell)
-  const bitmap = await createImageBitmap(blob);
-
-  // OffscreenCanvas ist sehr schnell (kein Layout nötig)
-  const canvas = new OffscreenCanvas(size, size);
-  const ctx = canvas.getContext("2d")!;
-  ctx.drawImage(bitmap, 0, 0, size, size);
-
-  // Pixel-Daten holen
-  const { data } = ctx.getImageData(0, 0, size, size);
-
-  // Einfacher, schneller Integer-Hash (FNV-1a)
-  let hash = 2166136261;
-  for (let i = 0; i < data.length; i++) {
-    hash ^= data[i];
-    hash = Math.imul(hash, 16777619);
-  }
-
-  bitmap.close(); // GPU-Ressourcen freigeben
-  return hash >>> 0; // unsigned int
-}
-

control/go.mod

@@ -2,17 +2,25 @@ module plg-mudics/control
 
 go 1.24.5
 
-require github.com/labstack/echo/v4 v4.13.4
+require (
+	github.com/labstack/echo/v4 v4.15.0
+	github.com/mdlayher/wol v0.0.0-20220221231636-b763a792253a
+)
 
 require (
+	github.com/josharian/native v1.0.0 // indirect
 	github.com/labstack/gommon v0.4.2 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mdlayher/ethernet v0.0.0-20190313224307-5b5fc417d966 // indirect
+	github.com/mdlayher/packet v1.0.0 // indirect
+	github.com/mdlayher/socket v0.2.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
-	golang.org/x/crypto v0.38.0 // indirect
+	golang.org/x/crypto v0.46.0 // indirect
-	golang.org/x/net v0.40.0 // indirect
+	golang.org/x/net v0.48.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
-	golang.org/x/text v0.25.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
-	golang.org/x/time v0.11.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
 )

control/go.sum

@@ -1,13 +1,30 @@
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
+github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.7 h1:81/ik6ipDQS2aGcBfIN5dHDB36BwrStyeAQquSYCV4o=
+github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
+github.com/josharian/native v1.0.0 h1:Ts/E8zCSEsG17dUqv7joXJFybuMLjQfWE04tsBODTxk=
+github.com/josharian/native v1.0.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
 github.com/labstack/echo/v4 v4.13.4 h1:oTZZW+T3s9gAu5L8vmzihV7/lkXGZuITzTQkTEhcXEA=
 github.com/labstack/echo/v4 v4.13.4/go.mod h1:g63b33BZ5vZzcIUF8AtRH40DrTlXnx4UMC8rBdndmjQ=
+github.com/labstack/echo/v4 v4.15.0 h1:hoRTKWcnR5STXZFe9BmYun9AMTNeSbjHi2vtDuADJ24=
+github.com/labstack/echo/v4 v4.15.0/go.mod h1:xmw1clThob0BSVRX1CRQkGQ/vjwcpOMjQZSZa9fKA/c=
 github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=
 github.com/labstack/gommon v0.4.2/go.mod h1:QlUFxVM+SNXhDL/Z7YhocGIBYOiwB0mXm1+1bAPHPyU=
 github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
 github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mdlayher/ethernet v0.0.0-20190313224307-5b5fc417d966 h1:O3p5UmisBhl3V6lgs4Vdfg8HpjzbWJPyOfGLdwVJSmI=
+github.com/mdlayher/ethernet v0.0.0-20190313224307-5b5fc417d966/go.mod h1:5s5p/sMJ6sNsFl6uCh85lkFGV8kLuIYJCRJLavVJwvg=
+github.com/mdlayher/packet v1.0.0 h1:InhZJbdShQYt6XV2GPj5XHxChzOfhJJOMbvnGAmOfQ8=
+github.com/mdlayher/packet v1.0.0/go.mod h1:eE7/ctqDhoiRhQ44ko5JZU2zxB88g+JH/6jmnjzPjOU=
+github.com/mdlayher/raw v0.0.0-20190313224157-43dbcdd7739d/go.mod h1:r1fbeITl2xL/zLbVnNHFyOzQJTgr/3fpf1lJX/cjzR8=
+github.com/mdlayher/socket v0.2.1 h1:F2aaOwb53VsBE+ebRS9bLd7yPOfYUMC8lOODdCBDY6w=
+github.com/mdlayher/socket v0.2.1/go.mod h1:QLlNPkFR88mRUNQIzRBMfXxwKal8H7u1h3bL1CV+f0E=
+github.com/mdlayher/wol v0.0.0-20220221231636-b763a792253a h1:fpQi42PM6HzbHwNg6a7OvLbh5l49Rgr7GCARozjHwio=
+github.com/mdlayher/wol v0.0.0-20220221231636-b763a792253a/go.mod h1:XX6nvyQpGc8E4KaQm62FyexOYd36ilpyfYf8wjgMDV8=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
@@ -16,16 +33,38 @@ github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6Kllzaw
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.2.2 h1:lxLXG0uE3Qnshl9QyaK6XJxMXlQZELvChBOCmQD0Loo=
 github.com/valyala/fasttemplate v1.2.2/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.38.0 h1:jt+WWG8IZlBnVbomuhg2Mdq0+BBQaHbtqHEFEigjUV8=
 golang.org/x/crypto v0.38.0/go.mod h1:MvrbAqul58NNYPKnOra203SB9vpuZW0e+RRZV+Ggqjw=
+golang.org/x/crypto v0.46.0 h1:cKRW/pmt1pKAfetfu+RCEvjvZkA9RimPbh7bhFjGVBU=
+golang.org/x/crypto v0.46.0/go.mod h1:Evb/oLKmMraqjZ2iQTwDwvCtJkczlDuTmdJXoZVzqU0=
+golang.org/x/net v0.0.0-20190313220215-9f648a60d977/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.40.0 h1:79Xs7wF06Gbdcg4kdCCIQArK11Z1hr5POQ6+fIYHNuY=
 golang.org/x/net v0.40.0/go.mod h1:y0hY0exeL2Pku80/zKK7tpntoX23cqL3Oa6njdgRtds=
+golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
+golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.14.0 h1:woo0S4Yywslg6hp4eUFjTVOyKt0RookbpAHG4c1HmhQ=
+golang.org/x/sync v0.14.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220209214540-3681064d5158/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
 golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
+golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
+golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
 golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
 golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

control/main.go

@@ -4,18 +4,42 @@ import (
 	"log/slog"
 	"net"
 	"net/http"
+	"os"
 	"os/exec"
+	"path/filepath"
 	"plg-mudics/control/frontend"
 	"plg-mudics/shared"
 	"time"
 
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
+	"github.com/mdlayher/wol"
 )
 
+var storageFile string
+
 func main() {
+	var err error
+
+	path, err := getStoragePath()
+	if err != nil {
+		slog.Error("Failed to initialize storage path", "error", err)
+		os.Exit(1)
+	}
+	storageFile = filepath.Join(path, "storage.json")
+	// Ensure storage.json exists
+	if _, err := os.Stat(storageFile); os.IsNotExist(err) {
+		if err := os.WriteFile(storageFile, []byte("{}"), 0644); err != nil {
+			slog.Error("Failed to initialize storage.json", "error", err)
+			os.Exit(1)
+		}
+	}
+
 	e := echo.New()
 
+	// Allow requests from everywhere
+	e.Use(middleware.CORS())
+
 	// Serve the embedded SvelteKit frontend
 	e.Use(middleware.StaticWithConfig(middleware.StaticConfig{
 		Filesystem: http.FS(frontend.BuildDirFS),
@@ -25,14 +49,25 @@ func main() {
 	// Servers all API endpoints, e.g. our custom logic
 	apiGroup := e.Group("/api")
 	apiGroup.GET("/ping", pingRoute)
+	apiGroup.POST("/wakeOnLan", wakeOnLanRoute)
+	apiGroup.GET("/storage", getStorageRoute)
+	apiGroup.POST("/storage", setStorageRoute)
 
 	port := "8080"
 
-	go shared.OpenBrowserWindow("http://localhost:"+port, false, false)
+	// the order is important, the open browser command exitsts as soon as the winodw is closed
-
+	// and since its the last action in the main go func all other goroutines (e.g. the webserver) are killed
-	err := e.Start(":" + port)
+	go func() {
+		err := e.Start(":" + port)
+		if err != nil {
+			slog.Error("Failed to start Echo Webserver", "error", err)
+			os.Exit(1)
+		}
+	}()
+	err = shared.OpenBrowserWindow("http://localhost:"+port, false, "control")
 	if err != nil {
-		slog.Error("Failed to start Echo Webserver", "error", err)
+		slog.Error("Failed to open browser window", "error", err)
+		os.Exit(1)
 	}
 }
 
@@ -61,3 +96,31 @@ type PingResponse struct {
 	Status string `json:"status"`
 	Error  string `json:"error"`
 }
+
+type WakeOnLanRequest struct {
+	MACAddress string `json:"mac_address"`
+}
+
+func wakeOnLanRoute(ctx echo.Context) error {
+	var data WakeOnLanRequest
+	if err := ctx.Bind(&data); err != nil {
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
+	}
+	mac, err := net.ParseMAC(data.MACAddress)
+	if err != nil {
+		slog.Warn("Invalid MAC address provided", "mac_address", data.MACAddress, "error", err)
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid MAC address"})
+	}
+
+	client, err := wol.NewClient()
+	if err != nil {
+		slog.Error("Failed to create Wake-on-LAN client", "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to create Wake-on-LAN client"})
+	}
+	if err := client.Wake("255.255.255.255:7", mac); err != nil {
+		slog.Error("Failed to send Wake-on-LAN packet", "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to send Wake-on-LAN packet"})
+	}
+
+	return ctx.JSON(http.StatusOK, struct{}{})
+}

control/requests/Get Store.bru

@@ -0,0 +1,16 @@
+meta {
+  name: Get Store
+  type: http
+  seq: 2
+}
+
+get {
+  url: http://localhost:8080/api/storage
+  body: none
+  auth: inherit
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

control/requests/Set Store.bru

@@ -0,0 +1,22 @@
+meta {
+  name: Set Store
+  type: http
+  seq: 3
+}
+
+post {
+  url: http://localhost:8080/api/storage
+  body: json
+  auth: inherit
+}
+
+body:json {
+  {
+    "key": "value"
+  }
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

control/requests/wakeOnLan.bru

@@ -0,0 +1,22 @@
+meta {
+  name: wakeOnLan
+  type: http
+  seq: 4
+}
+
+post {
+  url: http://localhost:8080/api/wakeOnLan
+  body: json
+  auth: inherit
+}
+
+body:json {
+  {
+    "mac_address": "aa:aa:aa:aa:aa:aa"
+  }
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}

control/storage.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"os"
+	"path/filepath"
+	"plg-mudics/shared"
+
+	"github.com/labstack/echo/v4"
+)
+
+func getStorageRoute(ctx echo.Context) error {
+	data, err := os.ReadFile(storageFile)
+	if err != nil {
+		slog.Error("Could not read storage file", "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Could not read storage file"})
+	}
+
+	var content interface{}
+	if err := json.Unmarshal(data, &content); err != nil {
+		slog.Error("Could not parse storage file", "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Could not parse storage file"})
+	}
+
+	return ctx.JSON(http.StatusOK, content)
+}
+
+func setStorageRoute(ctx echo.Context) error {
+	var payload interface{}
+	if err := ctx.Bind(&payload); err != nil {
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid JSON payload"})
+	}
+
+	data, err := json.MarshalIndent(payload, "", "  ")
+	if err != nil {
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to marshal storage file"})
+	}
+	if err := os.WriteFile(storageFile, data, 0644); err != nil {
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to write storage file"})
+	}
+
+	return ctx.JSON(http.StatusOK, map[string]interface{}{})
+}
+
+func getStoragePath() (string, error) {
+	var storagePath string
+
+	home, err := os.UserHomeDir()
+	if err != nil {
+		return "", fmt.Errorf("unable to determine user home directory: %w", err)
+	}
+	storagePath = filepath.Join(home, ".local", "share", "plg-mudics", "control")
+	if err := os.MkdirAll(storagePath, os.ModePerm); err != nil {
+		return "", fmt.Errorf("failed to create local config directory: %w", err)
+	}
+
+	return storagePath, nil
+}

display/README.md

@@ -1,16 +1,103 @@
-# PLG-MuDiCS Display
+# API
 
-## Runtime Requirements
+All response and request bodies are `application/json` if not otherwise specified. If no response schema is specified an empty json object `{}` is returned.
 
-- Bash
+## Default
-- Chromium
-- LibreOffice (presentation view)
-- ImageMagick (file preview)
-- ffmpeg (file preview)
-- Ghostscript (file preview)
 
-## Development Setup
+### Responses
 
-- install Go (at least version v1.25)
+#### All Errors
-- build template: `go generate ./..`
+
-- run code: `go run .`
+If not specified otherwise.
+
+- `description`: string
+
+#### 400
+
+Request uses invalid JSON syntax or does not follow request schema.
+
+#### 500
+
+Something (undefined) on the display side has gone very wrong.
+
+## GET `/ping`
+
+### Responses
+
+#### 200
+
+- `version`: str
+
+## PATCH `/shellCommand`
+
+### Responses
+
+#### 200
+
+Even when the command itself fails.
+
+- `stdout`: string
+- `stderr`: string
+- `exitCode`: int
+
+## PATCH `/keyboardInput`
+
+### Request Body
+
+- `inputs`: list
+  - `key`: string for key
+  - `action`: "press" or "release"
+
+## PATCH `/showHTML`
+
+### Request Body
+
+- `html`: string
+
+## PATCH `/takeScreenshot`
+
+### Responses
+
+#### 200
+
+The screenshot as binary in the response body.
+
+## POST `/file/<path>` - Upload File
+
+### Responses
+
+#### 409 - Conflict
+
+File with the same path and name already exists.
+
+## GET `/file/<path>`
+
+### Responses
+
+#### 404
+
+Requested file was not found at the path.
+
+## PATCH `/file/<path>` - Open File
+
+### Responses
+
+#### 404
+
+Requested file was not found at the path.
+
+#### 415 - Unsupported Media Type
+
+The type of the file is not available for display.
+
+## GET `/file/preview/<path>`
+
+### Responses
+
+#### 404
+
+Requested file was not found at the path.
+
+#### 415 - Unsupported Media Type
+
+The type of the file is not available preview generation.

display/go.mod

@@ -4,8 +4,10 @@ go 1.24.4
 
 require (
 	github.com/a-h/templ v0.3.960
-	github.com/labstack/echo/v4 v4.13.4
+	github.com/gabriel-vasile/mimetype v1.4.11
+	github.com/labstack/echo/v4 v4.15.0
 	github.com/micmonay/keybd_event v1.1.2
+	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 )
 
 require (
@@ -21,14 +23,14 @@ require (
 	github.com/natefinch/atomic v1.0.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
 	github.com/valyala/fasttemplate v1.2.2 // indirect
-	golang.org/x/crypto v0.40.0 // indirect
+	golang.org/x/crypto v0.46.0 // indirect
-	golang.org/x/mod v0.26.0 // indirect
+	golang.org/x/mod v0.30.0 // indirect
-	golang.org/x/net v0.42.0 // indirect
+	golang.org/x/net v0.48.0 // indirect
-	golang.org/x/sync v0.16.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
-	golang.org/x/sys v0.34.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
-	golang.org/x/text v0.27.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
-	golang.org/x/time v0.11.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
-	golang.org/x/tools v0.35.0 // indirect
+	golang.org/x/tools v0.39.0 // indirect
 )
 
 tool github.com/a-h/templ/cmd/templ

display/go.sum

@@ -14,10 +14,14 @@ github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
 github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
 github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
 github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
+github.com/gabriel-vasile/mimetype v1.4.11 h1:AQvxbp830wPhHTqc1u7nzoLT+ZFxGY7emj5DR5DYFik=
+github.com/gabriel-vasile/mimetype v1.4.11/go.mod h1:d+9Oxyo1wTzWdyVUPMmXFvp4F9tea18J8ufA774AB3s=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/labstack/echo/v4 v4.13.4 h1:oTZZW+T3s9gAu5L8vmzihV7/lkXGZuITzTQkTEhcXEA=
 github.com/labstack/echo/v4 v4.13.4/go.mod h1:g63b33BZ5vZzcIUF8AtRH40DrTlXnx4UMC8rBdndmjQ=
+github.com/labstack/echo/v4 v4.15.0 h1:hoRTKWcnR5STXZFe9BmYun9AMTNeSbjHi2vtDuADJ24=
+github.com/labstack/echo/v4 v4.15.0/go.mod h1:xmw1clThob0BSVRX1CRQkGQ/vjwcpOMjQZSZa9fKA/c=
 github.com/labstack/gommon v0.4.2 h1:F8qTUNXgG1+6WQmqoUWnz8WiEU60mXVVw0P4ht1WRA0=
 github.com/labstack/gommon v0.4.2/go.mod h1:QlUFxVM+SNXhDL/Z7YhocGIBYOiwB0mXm1+1bAPHPyU=
 github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
@@ -30,28 +34,47 @@ github.com/natefinch/atomic v1.0.1 h1:ZPYKxkqQOx3KZ+RsbnP/YsgvxWQPGxjC0oBt2AhwV0
 github.com/natefinch/atomic v1.0.1/go.mod h1:N/D/ELrljoqDyT3rZrsUmtsuzvHkeB/wWjHV22AZRbM=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e h1:MRM5ITcdelLK2j1vwZ3Je0FKVCfqOLp5zO6trqMLYs0=
+github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e/go.mod h1:XV66xRDqSt+GTGFMVlhk3ULuV0y9ZmzeVGR4mloJI3M=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.2.2 h1:lxLXG0uE3Qnshl9QyaK6XJxMXlQZELvChBOCmQD0Loo=
 github.com/valyala/fasttemplate v1.2.2/go.mod h1:KHLXt3tVN2HBp8eijSv/kGJopbvo7S+qRAEEKiv+SiQ=
 golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM=
 golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
+golang.org/x/crypto v0.46.0 h1:cKRW/pmt1pKAfetfu+RCEvjvZkA9RimPbh7bhFjGVBU=
+golang.org/x/crypto v0.46.0/go.mod h1:Evb/oLKmMraqjZ2iQTwDwvCtJkczlDuTmdJXoZVzqU0=
 golang.org/x/mod v0.26.0 h1:EGMPT//Ezu+ylkCijjPc+f4Aih7sZvaAr+O3EHBxvZg=
 golang.org/x/mod v0.26.0/go.mod h1:/j6NAhSk8iQ723BGAUyoAcn7SlD7s15Dp9Nd/SfeaFQ=
+golang.org/x/mod v0.30.0 h1:fDEXFVZ/fmCKProc/yAXXUijritrDzahmwwefnjoPFk=
+golang.org/x/mod v0.30.0/go.mod h1:lAsf5O2EvJeSFMiBxXDki7sCgAxEUcZHXoXMKT4GJKc=
 golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
 golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
+golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
+golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
 golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
 golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
 golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
 golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
+golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
+golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
 golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
 golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
+golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
 golang.org/x/tools v0.35.0 h1:mBffYraMEf7aa0sB+NuKnuCy8qI/9Bughn8dC2Gu5r0=
 golang.org/x/tools v0.35.0/go.mod h1:NKdj5HkL/73byiZSJjqJgKn3ep7KjFkBOkR/Hps3VPw=
+golang.org/x/tools v0.39.0 h1:ik4ho21kwuQln40uelmciQPp9SipgNDdrafrYA4TmQQ=
+golang.org/x/tools v0.39.0/go.mod h1:JnefbkDPyD8UU2kI5fuf8ZX4/yUeh9W877ZeBONxUqQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

display/main.go

@@ -9,8 +9,6 @@ import (
 	"plg-mudics/shared"
 )
 
-const VERSION = "0.1.0"
-
 //go:generate go tool templ generate
 
 func main() {
@@ -24,9 +22,11 @@ func main() {
 		return
 	}
 	port := "1323"
-	go web.StartWebServer(VERSION, port)
 
-	err = shared.OpenBrowserWindow("http://localhost:"+port, true, true)
+	// the order is important, the open browser command exitsts as soon as the winodw is closed
+	// and since its the last action in the main go func all other goroutines (e.g. the webserver) are killed
+	go web.StartWebServer(shared.Version, port)
+	err = shared.OpenBrowserWindow("http://localhost:"+port, true, "display")
 	if err != nil {
 		slog.Error("Failed to open browser window", "error", err)
 		os.Exit(1)

display/pkg/file_handler.go

@@ -0,0 +1,63 @@
+package pkg
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"plg-mudics/shared"
+	"syscall"
+
+	"github.com/gabriel-vasile/mimetype"
+)
+
+var FileHandler fileHandler = fileHandler{}
+
+type fileHandler struct {
+	runningProgram *exec.Cmd
+}
+
+func (fh *fileHandler) OpenFile(path string) error {
+	var err error
+
+	mType, err := mimetype.DetectFile(path)
+	if err != nil {
+		return fmt.Errorf("failed to detect mime type: %w", err)
+	}
+
+	tempDirPath, err := os.MkdirTemp("", "plg-mudics-program-profile-")
+	if err != nil {
+		return fmt.Errorf("failed to create temporary profile directory: %w", err)
+	}
+
+	err = fh.CloseRunningProgram()
+	if err != nil {
+		return err
+	}
+
+	switch mType.String() {
+	case "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation":
+		fh.runningProgram = exec.Command("soffice", "--show", path, "--nologo", "--view", "--norestore", fmt.Sprintf("-env:UserInstallation=file://%s", tempDirPath))
+	case "application/pdf":
+		fh.runningProgram = exec.Command("xreader", path, "--presentation")
+	default:
+		return fmt.Errorf("unsupported file type: %s", mType.String())
+	}
+
+	fh.runningProgram.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+
+	result := shared.RunShellCommandNonBlocking(fh.runningProgram)
+	if result.ExitCode != 0 {
+		return fmt.Errorf("could not open pdf: %s (%d)", result.Stderr, result.ExitCode)
+	}
+
+	return nil
+}
+
+func (fh *fileHandler) CloseRunningProgram() error {
+	if fh.runningProgram == nil {
+		return nil
+	}
+	err := syscall.Kill(-fh.runningProgram.Process.Pid, syscall.SIGTERM)
+	fh.runningProgram = nil
+	return err
+}

display/pkg/file_preview.go

@@ -10,8 +10,9 @@ import (
 	"strings"
 	"time"
 )
-var ErrFileTypePreviewNotSupported = errors.New("file type not supported for preview");
+
-var ErrFilePreviewToolsMissing = errors.New("required tools for file preview are missing");
+var ErrFileTypePreviewNotSupported = errors.New("file type not supported for preview")
+var ErrFilePreviewToolsMissing = errors.New("required tools for file preview are missing")
 
 func GenerateFilePreview(inputPath string) (string, error) {
 	var err error
@@ -36,7 +37,7 @@ func GenerateFilePreview(inputPath string) (string, error) {
 }
 
 func generateImagePreview(inputPath string, outputPath string) error {
-	cmd := exec.Command("magick", inputPath, "-thumbnail", "100x100", "-quality", "50", outputPath)
+	cmd := exec.Command("magick", inputPath, "-gravity", "center", "-crop", "1:1", "-thumbnail", "100", "-quality", "50", outputPath)
 	result := shared.RunShellCommand(cmd)
 	if result.ExitCode != 0 {
 		if result.ExitCode == 127 {
@@ -53,7 +54,7 @@ func generatePDFPreview(inputPath string, outputPath string) error {
 		return ErrFilePreviewToolsMissing
 	}
 
-	cmd := exec.Command("magick", fmt.Sprintf("%s[0]", inputPath), "-thumbnail", "100x100", "-quality", "50", outputPath)
+	cmd := exec.Command("magick", fmt.Sprintf("%s[0]", inputPath), "-gravity", "center", "-crop", "1:1", "-thumbnail", "100x100", "-quality", "50", outputPath)
 	result := shared.RunShellCommand(cmd)
 	if result.ExitCode != 0 {
 		if result.ExitCode == 127 {
@@ -82,4 +83,4 @@ func generateVideoPreview(inputPath string, outputPath string) error {
 	}
 
 	return nil
-}
+}

display/pkg/main.go

@@ -3,7 +3,6 @@ package pkg
 import (
 	"errors"
 	"fmt"
-	"log/slog"
 	"net"
 	"os"
 	"os/exec"
@@ -16,8 +15,6 @@ import (
 	"github.com/micmonay/keybd_event"
 )
 
-
-
 func GetDeviceIp() (string, error) {
 	addrs, err := net.InterfaceAddrs()
 	if err != nil {
@@ -49,24 +46,41 @@ func GetDeviceMac() (string, error) {
 	return "", fmt.Errorf("no suitable MAC address found")
 }
 
-func OpenPresentation(path string) error {
+type KeyAction int
-	cmd := exec.Command("bash", "-c", "-r", fmt.Sprintf("soffice --show %s -nologo -norestore", path))
+
-	result := shared.RunShellCommand(cmd)
+const (
-	if result.ExitCode != 0 {
+	KeyPress KeyAction = iota
-		return errors.New(result.Stderr)
+	KeyRelease
-	}
+)
-	return nil
+
+type Input struct {
+	Key    int
+	Action KeyAction
 }
 
-func KeyboardInput(key int) error {
+func KeyboardInput(inputs []Input) error {
+	var err error
+
 	kb, err := keybd_event.NewKeyBonding()
 	if err != nil {
 		return fmt.Errorf("failed to create key bonding: %w", err)
 	}
-	kb.SetKeys(key)
 
-	if err := kb.Launching(); err != nil {
+	for _, input := range inputs {
-		return fmt.Errorf("failed to launch key event: %w", err)
+		kb.SetKeys(input.Key)
+
+		switch input.Action {
+		case KeyPress:
+			err = kb.Press()
+		case KeyRelease:
+			err = kb.Release()
+		}
+
+		if err != nil {
+			return fmt.Errorf("failed to run key event: %w", err)
+		}
+
+		time.Sleep(time.Microsecond * 100)
 	}
 
 	return nil
@@ -85,12 +99,10 @@ func TakeScreenshot() (string, error) {
 		if commandOutput.ExitCode == 0 {
 			return tempFilePath, nil
 		}
-		slog.Warn("Screenshot error", "error", commandOutput.Stderr)
 	}
 	return "", errors.New("no screenshot utility found or all failed")
 }
 
-
 func GetStoragePath() (string, error) {
 	var storagePath string
 
@@ -98,7 +110,7 @@ func GetStoragePath() (string, error) {
 	if err != nil {
 		return "", fmt.Errorf("unable to determine user home directory: %w", err)
 	}
-	storagePath = filepath.Join(home, ".local", "share", "plg-connect-display")
+	storagePath = filepath.Join(home, ".local", "share", "plg-mudics", "display")
 	if err := os.MkdirAll(storagePath, os.ModePerm); err != nil {
 		return "", fmt.Errorf("failed to create local config directory: %w", err)
 	}
@@ -136,4 +148,3 @@ func ResolveStorageFilePath(pathParam string) (string, bool, error) {
 
 	return fullPath, true, nil
 }
-

display/requests/keyboardInput.bru

@@ -12,10 +12,16 @@ patch {
 
 body:json {
   {
-    "key":  "VK_T"
+    "inputs": [
+      {
+        "key": "VK_T",
+        "action": "press"
+      }
+    ]
   }
 }
 
 settings {
   encodeUrl: true
+  timeout: 0
 }

display/web/embed.go

@@ -0,0 +1,12 @@
+package web
+
+import (
+	"embed"
+	"io/fs"
+)
+
+//go:embed all:static
+var staticDir embed.FS
+
+// BuildDirFS contains the embedded dist directory files (without the "build" prefix)
+var StaticDirFS, _ = fs.Sub(staticDir, "static")

display/web/main.go

@@ -5,37 +5,28 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"image/color"
 	"io"
 	"log/slog"
+	"net"
 	"net/http"
+	"net/url"
 	"os"
 	"os/exec"
 	"path/filepath"
 	shared "plg-mudics/shared"
 	"strings"
 
+	"github.com/gabriel-vasile/mimetype"
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
-	"github.com/micmonay/keybd_event"
+	"github.com/skip2/go-qrcode"
 
 	"plg-mudics/display/pkg"
 )
 
-type ErrorResponse struct {
-	Error string `json:"error"`
-}
-
 var version string
 var sseConnection chan string
-var supportedExtensions = map[string]bool{
-	".mp4":  true,
-	".jpg":  true,
-	".jpeg": true,
-	".png":  true,
-	".gif":  true,
-	".pptx": true,
-	".odp":  true,
-}
 
 func StartWebServer(v string, port string) {
 	version = v
@@ -45,8 +36,17 @@ func StartWebServer(v string, port string) {
 	e.GET("/", indexRoute)
 	e.GET("/sse", sseRoute)
 	e.GET("/splash", func(ctx echo.Context) error {
-		return ctx.HTML(http.StatusOK, shared.SplashScreenTemplate)
+		html := shared.SplashScreenTemplate
+		html = strings.ReplaceAll(html, "%%APP-VERSION%%", version)
+		return ctx.HTML(http.StatusOK, html)
 	})
+	e.GET("/qr", qrRoute)
+
+	staticGroup := e.Group("/static")
+	staticGroup.Use(middleware.StaticWithConfig(middleware.StaticConfig{
+		Filesystem: http.FS(StaticDirFS),
+		HTML5:      true,
+	}))
 
 	apiGroup := e.Group("/api")
 	apiGroup.Use(middleware.CORS())
@@ -94,8 +94,9 @@ func sseRoute(ctx echo.Context) error {
 	if err != nil {
 		slog.Error("Failed to get device MAC address", "error", err)
 	}
+	showQR := !isPortFree(8080)
 	var status bytes.Buffer
-	deviceInfoTemplate(ip, mac).Render(context.Background(), &status)
+	deviceInfoTemplate(ip, mac, showQR).Render(context.Background(), &status)
 	connectedEvent := Event{
 		Data: status.Bytes(),
 	}
@@ -124,14 +125,45 @@ func sseRoute(ctx echo.Context) error {
 	}
 }
 
+func qrRoute(c echo.Context) error {
+	data := c.QueryParam("data")
+	if data == "" {
+		return c.String(http.StatusBadRequest, "missing data")
+	}
+
+	qr, err := qrcode.New(data, qrcode.Medium)
+	if err != nil {
+		return c.String(http.StatusInternalServerError, "could not generate qr")
+	}
+
+	qr.DisableBorder = true
+	qr.ForegroundColor = color.RGBA{R: 0x1c, G: 0x19, B: 0x17, A: 0xff}
+	qr.BackgroundColor = color.RGBA{R: 0xe7, G: 0xe5, B: 0xe4, A: 0xff}
+
+	png, err := qr.PNG(-1)
+	if err != nil {
+		return c.String(http.StatusInternalServerError, "could not encode png")
+	}
+
+	return c.Blob(http.StatusOK, "image/png", png)
+}
+
 func extractFilePathMiddleware(next echo.HandlerFunc) echo.HandlerFunc {
 	return func(ctx echo.Context) error {
-		pathParam := ctx.Param("path")
+		raw := ctx.Param("path")
-		fullPath, exists, err := pkg.ResolveStorageFilePath(pathParam)
+
+		decoded, err := url.PathUnescape(raw)
 		if err != nil {
-			slog.Warn("Failed to validate file path", "path", pathParam, "error", err)
+			slog.Warn("Invalid path encoding", "path", raw, "error", err)
-			return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid file path"})
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid file path"})
 		}
+
+		fullPath, exists, err := pkg.ResolveStorageFilePath(decoded)
+		if err != nil {
+			slog.Warn("Failed to validate file path", "path", decoded, "error", err)
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: "Invalid file path"})
+		}
+
 		ctx.Set("fullPath", fullPath)
 		ctx.Set("fileExists", exists)
 		return next(ctx)
@@ -144,14 +176,14 @@ func shellCommandRoute(ctx echo.Context) error {
 	}
 	if err := ctx.Bind(&commandInput); err != nil {
 		slog.Error("Failed to parse shell command", "error", err)
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid JSON request"})
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
 	cmd := exec.Command("bash", "-c", commandInput.Command)
 	storagePath, err := pkg.GetStoragePath()
 	if err != nil {
 		slog.Error("Failed to get storage path", "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to get storage path"})
 	}
 	cmd.Dir = storagePath
 
@@ -166,117 +198,168 @@ func shellCommandRoute(ctx echo.Context) error {
 
 func keyboardInputRoute(ctx echo.Context) error {
 	var request struct {
-		Key string `json:"key"`
+		Inputs []struct {
+			Key    string `json:"key"`
+			Action string `json:"action"`
+		} `json:"inputs"`
 	}
 	if err := ctx.Bind(&request); err != nil {
 		slog.Error("Failed to parse keyboard input", "error", err)
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid JSON request"})
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
-	code, ok := pkg.KeyboardEvents[request.Key]
+	var inputs []pkg.Input
-	if !ok {
+
-		slog.Error("Unsupported key", "key", request.Key)
+	for _, input := range request.Inputs {
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: fmt.Sprintf("Unsupported key: %s", request.Key)})
+		if input.Action != "press" && input.Action != "release" {
+			slog.Error("Invalid keyboard action", "action", input.Action)
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: fmt.Sprintf("Invalid action: %s", input.Action)})
+		}
+
+		code, ok := pkg.KeyboardEvents[input.Key]
+		if !ok {
+			slog.Error("Unsupported key", "key", input.Key)
+			return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: fmt.Sprintf("Unsupported key: %s", input.Key)})
+		}
+
+		var action pkg.KeyAction
+		if input.Action == "press" {
+			action = pkg.KeyPress
+		}
+		if input.Action == "release" {
+			action = pkg.KeyRelease
+		}
+
+		inputs = append(inputs, pkg.Input{
+			Key:    code,
+			Action: action,
+		})
 	}
 
-	err := pkg.KeyboardInput(code)
+	err := pkg.KeyboardInput(inputs)
 	if err != nil {
-		slog.Error("Failed to send keyboard input", "key", request.Key, "error", err)
+		slog.Error("Failed to send keyboard input", "inputs", inputs, "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to send keyboard input"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to send keyboard input"})
 	}
 
-	slog.Info("Keyboard input sent", "key", request.Key)
+	slog.Info("Keyboard input sent")
-	return ctx.JSON(http.StatusCreated, struct{ Message string }{Message: "Success"})
+	return ctx.JSON(http.StatusOK, struct{}{})
 }
 
 func uploadFileRoute(ctx echo.Context) error {
+	var err error
+
 	fullPath := ctx.Get("fullPath").(string)
 
 	// Ensure parent directories exist
 	if err := os.MkdirAll(filepath.Dir(fullPath), os.ModePerm); err != nil {
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to prepare storage directory"})
+		slog.Error("Failed to create storage path", "error", err, "path", fullPath)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to prepare storage directory"})
 	}
 
 	if ctx.Get("fileExists").(bool) {
-		return ctx.JSON(http.StatusConflict, ErrorResponse{Error: "File already exists"})
+		return ctx.JSON(http.StatusConflict, shared.ErrorResponse{Description: "File already exists"})
 	}
 
-	ext := strings.ToLower(filepath.Ext(fullPath))
+	file, err := os.Create(fullPath)
-	if !supportedExtensions[ext] {
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: fmt.Sprintf("Unsupported file extension: %s", ext)})
-	}
-
-	data, err := io.ReadAll(ctx.Request().Body)
 	if err != nil {
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to read file body"})
+		slog.Error("Failed to create file", "file", fullPath, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to create file"})
+	}
+	defer func() {
+		fileCloseErr := file.Close()
+		if fileCloseErr != nil {
+			slog.Error("Failed to close file", "file", fullPath, "error", fileCloseErr)
+		}
+		if err != nil {
+			os.Remove(fullPath)
+		}
+	}()
+
+	_, err = io.Copy(file, ctx.Request().Body)
+	if err != nil {
+		slog.Error("Failed to write file", "file", fullPath, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to write file"})
 	}
 
-	if err := os.WriteFile(fullPath, data, os.ModePerm); err != nil {
+	err = file.Sync() // ensure data is flushed to disk
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to save file"})
+	if err != nil {
+		slog.Error("Failed to sync file to disk", "file", fullPath, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to save file"})
 	}
 
 	slog.Info("File uploaded successfully", "path", fullPath)
-	return ctx.JSON(http.StatusCreated, struct{ Message string }{Message: "File uploaded successfully"})
+	return ctx.JSON(http.StatusOK, struct{}{})
 }
 
 func downloadFileRoute(ctx echo.Context) error {
 	fullPath := ctx.Get("fullPath").(string)
 
 	if !ctx.Get("fileExists").(bool) {
-		return ctx.JSON(http.StatusNotFound, ErrorResponse{Error: "File not found"})
+		return ctx.JSON(http.StatusNotFound, shared.ErrorResponse{Description: "File not found"})
 	}
 
-	err := ctx.File(fullPath)
+	slog.Info("Serving file for download", "path", fullPath)
+
+	file, err := os.Open(fullPath)
 	if err != nil {
-		slog.Error("Failed to serve file", "file", fullPath, "error", err)
+		slog.Error("Failed to open file", "file", fullPath, "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open file"})
 	}
+	defer file.Close()
 
-	slog.Info("File downloaded successfully", "path", fullPath)
+	return ctx.Stream(http.StatusOK, "application/octet-stream", file)
-	return nil
 }
 
 func openFileRoute(ctx echo.Context) error {
+	var err error
+
 	pathParam := ctx.Param("path")
 	fullPath := ctx.Get("fullPath").(string)
 
 	if !ctx.Get("fileExists").(bool) {
-		return ctx.JSON(http.StatusNotFound, ErrorResponse{Error: "File not found"})
+		return ctx.JSON(http.StatusNotFound, shared.ErrorResponse{Description: "File not found"})
 	}
 
 	if sseConnection == nil {
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Cant connect to display browser client"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Cant connect to display browser client"})
 	}
 
-	err := resetView()
+	err = resetView()
 	if err != nil {
 		slog.Error("Failed to reset view", "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to reset view"})
 	}
 
-	ext := strings.ToLower(filepath.Ext(fullPath))
+	mType, err := mimetype.DetectFile(fullPath)
-	switch ext {
+	if err != nil {
-	case ".mp4":
+		slog.Error("Failed to detect mime type", "file", pathParam, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to detect file type"})
+	}
+
+	switch mType.String() {
+	case "video/mp4":
 		var templateBuffer bytes.Buffer
 		videoTemplate(pathParam).Render(context.Background(), &templateBuffer)
 
 		sseConnection <- templateBuffer.String()
-	case ".jpg", ".jpeg", ".png", ".gif":
+	case "image/jpeg", "image/png", "image/gif":
 		var templateBuffer bytes.Buffer
 		imageTemplate(pathParam).Render(context.Background(), &templateBuffer)
 		sseConnection <- templateBuffer.String()
-	case ".pptx", ".odp":
+	case "application/pdf", "application/vnd.openxmlformats-officedocument.presentationml.presentation", "application/vnd.oasis.opendocument.presentation":
-		err := pkg.OpenPresentation(fullPath)
+		err = pkg.FileHandler.OpenFile(fullPath)
-		if err != nil {
-			slog.Error("Failed to open presentation", "file", pathParam, "error", err)
-			return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to open presentation"})
-		}
 	default:
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Unsupported file type"})
+		slog.Info("Unsupported file type", "type", mType)
+		return ctx.JSON(http.StatusUnsupportedMediaType, shared.ErrorResponse{Description: "Unsupported file type: " + mType.String()})
+	}
+
+	if err != nil {
+		slog.Error("Failed to open file", "file", pathParam, "error", err)
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to open file"})
 	}
 
 	slog.Info("Successfully run file", "file", pathParam)
-	return ctx.JSON(http.StatusCreated, struct{ Message string }{Message: "Success"})
+	return ctx.JSON(http.StatusOK, struct{}{})
 }
 
 func showHTMLRoute(ctx echo.Context) error {
@@ -285,19 +368,18 @@ func showHTMLRoute(ctx echo.Context) error {
 	}
 	if err := ctx.Bind(&request); err != nil {
 		slog.Error("Failed to parse request", "error", err)
-		return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "Invalid JSON request"})
+		return ctx.JSON(http.StatusBadRequest, shared.ErrorResponse{Description: shared.BadRequestDescription})
 	}
 
 	err := resetView()
 	if err != nil {
 		slog.Error("Failed to reset view", "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to reset view"})
 	}
 
 	sseConnection <- request.HTML
 
 	slog.Info("HTML content sent to client")
-	return ctx.JSON(http.StatusCreated, struct{ Message string }{Message: "Success"})
+	return ctx.JSON(http.StatusOK, struct{}{})
 }
 
 func pingRoute(ctx echo.Context) error {
@@ -312,13 +394,13 @@ func takeScreenshotRoute(ctx echo.Context) error {
 	screenshotPath, err := pkg.TakeScreenshot()
 	if err != nil {
 		slog.Error("Failed to take screenshot", "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to take screenshot"})
 	}
 
 	err = ctx.File(screenshotPath)
 	if err != nil {
 		slog.Error("Failed to serve file", "file", screenshotPath, "error", err)
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Internal server error"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to serve file"})
 	}
 
 	return nil
@@ -328,19 +410,19 @@ func previewRoute(ctx echo.Context) error {
 	fullPath := ctx.Get("fullPath").(string)
 	exists := ctx.Get("fileExists").(bool)
 	if !exists {
-		return ctx.JSON(http.StatusNotFound, ErrorResponse{Error: "File not found"})
+		return ctx.JSON(http.StatusNotFound, shared.ErrorResponse{Description: "File not found"})
 	}
 
 	outputFilePath, err := pkg.GenerateFilePreview(fullPath)
 	if err != nil {
 		slog.Error("Failed to generate preview", "file", fullPath, "error", err)
 		if errors.Is(err, pkg.ErrFileTypePreviewNotSupported) {
-			return ctx.JSON(http.StatusBadRequest, ErrorResponse{Error: "File type not supported for preview"})
+			return ctx.JSON(http.StatusUnsupportedMediaType, shared.ErrorResponse{Description: "File type not supported for preview"})
 		}
 		if errors.Is(err, pkg.ErrFilePreviewToolsMissing) {
-			return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Required tools for file preview are missing"})
+			return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Required tools for file preview are missing"})
 		}
-		return ctx.JSON(http.StatusInternalServerError, ErrorResponse{Error: "Failed to generate preview"})
+		return ctx.JSON(http.StatusInternalServerError, shared.ErrorResponse{Description: "Failed to generate preview"})
 	}
 
 	return ctx.File(outputFilePath)
@@ -348,11 +430,22 @@ func previewRoute(ctx echo.Context) error {
 
 // Reset previous file views so they dont collide with the new one
 func resetView() error {
-	err := pkg.KeyboardInput(keybd_event.VK_ESC)
+	err := pkg.FileHandler.CloseRunningProgram()
 	if err != nil {
-		return fmt.Errorf("failed to send ESC key: %w", err)
+		return fmt.Errorf("failed to close running program: %w", err)
 	}
+
 	sseConnection <- ""
 
 	return nil
 }
+
+func isPortFree(port int) bool {
+	addr := fmt.Sprintf("127.0.0.1:%d", port)
+	l, err := net.Listen("tcp", addr)
+	if err != nil {
+		return false
+	}
+	_ = l.Close()
+	return true
+}

display/web/main.templ

@@ -6,54 +6,75 @@ templ indexTemplate() {
 		<head>
 			<meta charset="UTF-8"/>
 			<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
-			<title>PLG Connect Display</title>
+			<title>PLG MuDiCS Display</title>
-			<script src="https://cdn.jsdelivr.net/npm/htmx.org@2.0.6/dist/htmx.min.js" integrity="sha384-Akqfrbj/HpNVo8k11SXBb6TlBWmXXlYQrCSqEWmyKJe+hDm3Z/B2WVG4smwBkRVm" crossorigin="anonymous"></script>
+			<script src="/static/htmx.min.js"></script>
-			<script src="https://cdn.jsdelivr.net/npm/htmx-ext-sse@2.2.2" crossorigin="anonymous"></script>
+			<script src="/static/htmx-ext-sse.min.js"></script>
 			<style>
-				body {
+		:root {
-				    display: flex;
+			--background-color: black;
-	                justify-content: center; /* centers horizontally */
+			--foreground-color: oklch(92.3% 0.003 48.717);
-	                align-items: center;     /* centers vertically */
+			--font-size: 5rem;
-	     			width: 100vw;    /* Viewport width */
+		}
-	                height: 100vh;   /* Viewport height */
-	                margin: 0;
-	                padding: 0;
-	                overflow: hidden;
-					background-color: hsl(256, 10%, 10%);
-					color: hsl(256, 90%, 95%);
-				}
 
-				video, img, iframe {
+		body {
-	    			width: 100vw;    /* Viewport width */
+			display: flex;
-	                height: 100vh;   /* Viewport height */
+			justify-content: center;
-	    			object-fit: contain;
+			/* centers horizontally */
-				}
+			align-items: center;
+			/* centers vertically */
+			width: 100vw;
+			/* Viewport width */
+			height: 100vh;
+			/* Viewport height */
+			margin: 0;
+			padding: 0;
+			overflow: hidden;
+			background-color: var(--background-color);
+			color: var(--foreground-color);
+			font-family: ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
+			cursor: none;
+		}
 
-				p {
+		video,
-				    font-size: 6rem;
+		img,
-					line-height: 1;
+		iframe {
-					font-family: ui-sans-serif, system-ui, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji';
+			width: 100vw;
-					text-wrap: balance;
+			/* Viewport width */
-					max-width: 90vw;
+			height: 100vh;
-					word-break: break-word;
+			/* Viewport height */
-					display: block;
+			object-fit: contain;
-				}
+		}
-			</style>
+
+		p,
+		li {
+			font-size: var(--font-size);
+			line-height: 1.2;
+			text-wrap: balance;
+			max-width: 90vw;
+			word-break: break-word;
+			margin: 0 0 calc(var(--font-size) * 0.4) 0;
+		}
+
+		ul,
+		ol {
+			padding-left: calc(var(--font-size)*1.5);
+		}
+	</style>
 			<script>
-				document.addEventListener('keydown', function(event) {
+		document.addEventListener('keydown', function (event) {
-				    if (event.code === 'Space') {
+			if (event.code === 'Space') {
-				        event.preventDefault();
+				event.preventDefault();
-				        var video = document.querySelector('video');
+				var video = document.querySelector('video');
-				        if (video) {
+				if (video) {
-				            if (video.paused) {
+					if (video.paused) {
-				                video.play();
+						video.play();
-				            } else {
+					} else {
-				                video.pause();
+						video.pause();
-				            }
+					}
-				        }
+				}
-				    }
+			}
-				});
+		});
-			</script>
+	</script>
 		</head>
 		<bod>
 			<div hx-get="/splash" hx-trigger="load"></div>
@@ -72,10 +93,31 @@ templ imageTemplate(path string) {
 	<img src={ "/api/file/" + path }/>
 }
 
-templ deviceInfoTemplate(ip string, mac string) {
+templ deviceInfoTemplate(ip string, mac string, showQR bool) {
-	<p>
+	<div style="width: 100vw; height: 100vh; display: flex; flex-direction: row; justify-content: space-between;">
-		{ ip }
+		<div
-		<br/>
+			style="display: flex; flex-direction: column; gap: 1rem; justify-content: end; padding: 2rem; font-size: 4rem;"
-		<span style="text-transform: uppercase;">{ mac }</span>
+		>
-	</p>
+			{ ip }
+			<span style="text-transform: uppercase;">{ mac }</span>
+		</div>
+		if showQR {
+			<div style="display: flex; justify-content: end; align-items: end; padding: 2rem;">
+				<div style="padding: 1rem; background-color: var(--foreground-color); border-radius: 1rem;">
+					<img
+						style="height: 30vh; width: auto; image-rendering: pixelated; image-rendering: crisp-edges;"
+						src={ "/qr?data=http://" + ip + ":8080" }
+						alt="QR-Code"
+					/>
+				</div>
+			</div>
+		}
+	</div>
+	<style>
+	:root {
+		--splash-bg: transparent !important;
+		--splash-fade-out-state: paused !important;
+		--background-color: oklch(21.6% 0.006 56.043);
+	}
+</style>
 }

display/web/static/htmx-ext-sse.min.js

@@ -0,0 +1 @@
+(function(){var g;htmx.defineExtension("sse",{init:function(e){g=e;if(htmx.createEventSource==undefined){htmx.createEventSource=t}},getSelectors:function(){return["[sse-connect]","[data-sse-connect]","[sse-swap]","[data-sse-swap]"]},onEvent:function(e,t){var r=t.target||t.detail.elt;switch(e){case"htmx:beforeCleanupElement":var n=g.getInternalData(r);var s=n.sseEventSource;if(s){g.triggerEvent(r,"htmx:sseClose",{source:s,type:"nodeReplaced"});n.sseEventSource.close()}return;case"htmx:afterProcessNode":i(r)}}});function t(e){return new EventSource(e,{withCredentials:true})}function a(n){if(g.getAttributeValue(n,"sse-swap")){var s=g.getClosestMatch(n,v);if(s==null){return null}var e=g.getInternalData(s);var a=e.sseEventSource;var t=g.getAttributeValue(n,"sse-swap");var r=t.split(",");for(var i=0;i<r.length;i++){const u=r[i].trim();const c=function(e){if(l(s)){return}if(!g.bodyContains(n)){a.removeEventListener(u,c);return}if(!g.triggerEvent(n,"htmx:sseBeforeMessage",e)){return}f(n,e.data);g.triggerEvent(n,"htmx:sseMessage",e)};g.getInternalData(n).sseEventListener=c;a.addEventListener(u,c)}}if(g.getAttributeValue(n,"hx-trigger")){var s=g.getClosestMatch(n,v);if(s==null){return null}var e=g.getInternalData(s);var a=e.sseEventSource;var o=g.getTriggerSpecs(n);o.forEach(function(t){if(t.trigger.slice(0,4)!=="sse:"){return}var r=function(e){if(l(s)){return}if(!g.bodyContains(n)){a.removeEventListener(t.trigger.slice(4),r)}htmx.trigger(n,t.trigger,e);htmx.trigger(n,"htmx:sseMessage",e)};g.getInternalData(n).sseEventListener=r;a.addEventListener(t.trigger.slice(4),r)})}}function i(e,t){if(e==null){return null}if(g.getAttributeValue(e,"sse-connect")){var r=g.getAttributeValue(e,"sse-connect");if(r==null){return}n(e,r,t)}a(e)}function n(r,e,n){var s=htmx.createEventSource(e);s.onerror=function(e){g.triggerErrorEvent(r,"htmx:sseError",{error:e,source:s});if(l(r)){return}if(s.readyState===EventSource.CLOSED){n=n||0;n=Math.max(Math.min(n*2,128),1);var t=n*500;window.setTimeout(function(){i(r,n)},t)}};s.onopen=function(e){g.triggerEvent(r,"htmx:sseOpen",{source:s});if(n&&n>0){const t=r.querySelectorAll("[sse-swap], [data-sse-swap], [hx-trigger], [data-hx-trigger]");for(let e=0;e<t.length;e++){a(t[e])}n=0}};g.getInternalData(r).sseEventSource=s;var t=g.getAttributeValue(r,"sse-close");if(t){s.addEventListener(t,function(){g.triggerEvent(r,"htmx:sseClose",{source:s,type:"message"});s.close()})}}function l(e){if(!g.bodyContains(e)){var t=g.getInternalData(e).sseEventSource;if(t!=undefined){g.triggerEvent(e,"htmx:sseClose",{source:t,type:"nodeMissing"});t.close();return true}}return false}function f(t,r){g.withExtensions(t,function(e){r=e.transformResponse(r,null,t)});var e=g.getSwapSpecification(t);var n=g.getTarget(t);g.swap(n,r,e,{contextElement:t})}function v(e){return g.getInternalData(e).sseEventSource!=null}})();

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1766997096,
+        "narHash": "sha256-uOUlyNs3URxA+r8U7jeMe+W2X9kRriP2DqvaeeGzkTQ=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "088e9a071796304ed9ac3d666164e1ccb9b53f66",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-25.11-small",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,30 @@
+{
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11-small";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+  }: let
+    pkgs = nixpkgs.legacyPackages."x86_64-linux";
+  in {
+    devShells."x86_64-linux".default = pkgs.mkShell {
+      packages = with pkgs; [
+        libreoffice
+        ungoogled-chromium
+        xreader
+        imagemagick
+        ffmpeg
+        ghostscript
+        gnome-screenshot
+
+        playwright-driver.browsers
+      ];
+
+      PLAYWRIGHT_BROWSERS_PATH = pkgs.playwright-driver.browsers;
+      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD = "true";
+      PW_DISABLE_TS_ESM = "true";
+    };
+  };
+}

go.work.sum

@@ -1,24 +1,15 @@
 github.com/a-h/htmlformat v0.0.0-20250209131833-673be874c677/go.mod h1:FMIm5afKmEfarNbIXOaPHFY8X7fo+fRQB6I9MPG2nB0=
-github.com/a-h/templ v0.3.960 h1:trshEpGa8clF5cdI39iY4ZrZG8Z/QixyzEyUnA7feTM=
-github.com/a-h/templ v0.3.960/go.mod h1:oCZcnKRf5jjsGpf2yELzQfodLphd2mwecwG4Crk5HBo=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/rs/cors v1.11.0/go.mod h1:XyqrcTp5zjWr1wsJ8PIRZssZ8b/WMcMf71DJnit4EMU=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM=
-golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
 golang.org/x/mod v0.25.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
-golang.org/x/mod v0.26.0/go.mod h1:/j6NAhSk8iQ723BGAUyoAcn7SlD7s15Dp9Nd/SfeaFQ=
 golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
-golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
+golang.org/x/net v0.47.0/go.mod h1:/jNxtkgq5yWUGYkaZGqo27cfGZ1c5Nen03aYrrKpVRU=
-golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
-golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
-golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
-golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/telemetry v0.0.0-20240521205824-bda55230c457/go.mod h1:pRgIJT+bRLFKnoM1ldnzKoxTIn14Yxz928LQRYYgIN0=
 golang.org/x/telemetry v0.0.0-20250710130107-8d8967aff50b/go.mod h1:4ZwOYna0/zsOKwuR5X/m0QFOJpSZvAxFfkQT+Erd9D4=
+golang.org/x/telemetry v0.0.0-20251111182119-bc8e575c7b54/go.mod h1:hKdjCMrbv9skySur+Nek8Hd0uJ0GuxJIoIX2payrIdQ=
 golang.org/x/term v0.32.0/go.mod h1:uZG1FhGx848Sqfsq4/DlJr3xGGsYMu/L5GW4abiaEPQ=
 golang.org/x/term v0.33.0/go.mod h1:s18+ql9tYWp1IfpV9DmCtQDDSRBUjKaw9M1eAv5UeF0=
-golang.org/x/text v0.27.0 h1:4fGWRpyh641NLlecmyl4LOe6yDdfaYNrGb2zdfo4JV4=
+golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
-golang.org/x/text v0.27.0/go.mod h1:1D28KMCvyooCX9hBiosv5Tz/+YLxj0j7XhWjpSUF7CU=
 golang.org/x/tools v0.34.0/go.mod h1:pAP9OwEaY1CAW3HOmg3hLZC5Z0CCmzjAF2UQMSqNARg=
-golang.org/x/tools v0.35.0/go.mod h1:NKdj5HkL/73byiZSJjqJgKn3ep7KjFkBOkR/Hps3VPw=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

nixos/configuration.nix

@@ -0,0 +1,177 @@
+{
+  inputs,
+  config,
+  pkgs,
+  ...
+}: {
+  imports = [
+    inputs.home-manager.nixosModules.default
+    ./hardware-configuration.nix
+  ];
+
+  ## System Config
+
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  hardware.steam-hardware.enable = true;
+
+  networking.networkmanager.enable = true;
+
+  nix.settings.experimental-features = ["nix-command" "flakes"];
+
+  time.timeZone = "Europe/Berlin";
+
+  i18n.defaultLocale = "en_US.UTF-8";
+  i18n.extraLocaleSettings = {
+    LC_ADDRESS = "de_DE.UTF-8";
+    LC_IDENTIFICATION = "de_DE.UTF-8";
+    LC_MEASUREMENT = "de_DE.UTF-8";
+    LC_MONETARY = "de_DE.UTF-8";
+    LC_NAME = "de_DE.UTF-8";
+    LC_NUMERIC = "de_DE.UTF-8";
+    LC_PAPER = "de_DE.UTF-8";
+    LC_TELEPHONE = "de_DE.UTF-8";
+    LC_TIME = "de_DE.UTF-8";
+  };
+
+  services.xserver.enable = true;
+
+  services.xserver.displayManager.lightdm.enable = true;
+  services.xserver.desktopManager.xfce.enable = true;
+
+  services.xserver.xkb = {
+    layout = "de";
+    variant = "";
+  };
+
+  console.keyMap = "de";
+
+  services.pulseaudio.enable = false;
+  security.rtkit.enable = true;
+  services.pipewire = {
+    enable = true;
+    alsa.enable = true;
+    alsa.support32Bit = true;
+    pulse.enable = true;
+  };
+
+  users.users.mudics = {
+    isNormalUser = true;
+    description = "mudics";
+    extraGroups = ["networkmanager" "wheel"];
+  };
+
+  nixpkgs.config.allowUnfree = true;
+
+  system.stateVersion = "25.05"; # Don't change
+
+  ## User Config
+
+  programs.nix-ld = {
+    enable = true;
+    libraries = with pkgs; [
+      stdenv.cc.cc
+      zlib
+    ];
+  };
+
+  services.displayManager.autoLogin = {
+    enable = true;
+    user = "mudics";
+  };
+
+  networking.hostName = "mudics";
+
+  environment.systemPackages = with pkgs; [
+    # Programs
+    libreoffice
+    ungoogled-chromium
+    xfce.thunar-archive-plugin
+    git
+    nushell
+    unzip
+    iputils
+    xreader
+    tree
+    jq
+
+    # Libraries
+    imagemagick
+    ffmpeg
+    ghostscript
+  ];
+
+  home-manager.users.mudics = {
+    xfconf.settings = {
+      xfce4-power-manager."xfce4-power-manager/dpms-enabled" = false;
+      xfce4-screensaver."saver/enabled" = false;
+    };
+
+    home.stateVersion = "25.05";
+  };
+
+  systemd.services.update-mudics = {
+    wantedBy = ["multi-user.target"];
+    after = ["network-online.target"];
+    wants = ["network-online.target"];
+    path = config.environment.systemPackages;
+    script = "nu ${./update.nu}";
+    serviceConfig = {
+      WorkingDirectory = "/home/mudics/mudics";
+      User = "mudics";
+      Type = "oneshot";
+    };
+  };
+
+  systemd.services.run-mudics = {
+    wantedBy = ["default.target"];
+    after = ["update-mudics.service" "graphical.target"];
+    wants = ["graphical.target"];
+    path = config.environment.systemPackages;
+    script = "./plg-mudics-display";
+    serviceConfig = {
+      WorkingDirectory = "/home/mudics/mudics";
+      User = "mudics";
+      Type = "simple";
+    };
+    environment = {
+      DISPLAY = ":0";
+      XDG_RUNTIME_DIR = "/run/user/1000";
+      XDG_DATA_DIRS = "/run/current-system/sw/share";
+    };
+  };
+
+  systemd.services.build-mudics-system = {
+    wantedBy = ["default.target"];
+    after = ["update-mudics.service"];
+    path = with pkgs; [nixos-rebuild];
+    script = "nixos-rebuild boot --flake .#mudics";
+    serviceConfig = {
+      WorkingDirectory = "/home/mudics/mudics/nixos";
+    };
+  };
+
+  systemd.services.enable-wol = {
+    wantedBy = ["multi-user.target"];
+    after = ["network.target"];
+    path = with pkgs; [ethtool nushell];
+    script = "nu ${./wol.nu}";
+    serviceConfig = {
+      Type = "oneshot";
+      User = "root";
+    };
+  };
+
+  systemd.tmpfiles.rules = [
+    "d /home/mudics/mudics 0755 mudics - -"
+  ];
+
+  networking.firewall = {
+    enable = true;
+    allowedTCPPorts = [
+      1323 # display
+      8080 # control
+    ];
+  };
+}

nixos/flake.lock

@@ -0,0 +1,49 @@
+{
+  "nodes": {
+    "home-manager": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1767910483,
+        "narHash": "sha256-MOU5YdVu4DVwuT5ztXgQpPuRRBjSjUGIdUzOQr9iQOY=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "82fb7dedaad83e5e279127a38ef410bcfac6d77c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "release-25.11",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1767799921,
+        "narHash": "sha256-r4GVX+FToWVE2My8VVZH4V0pTIpnu2ZE8/Z4uxGEMBE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "d351d0653aeb7877273920cd3e823994e7579b0b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-25.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "home-manager": "home-manager",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

nixos/flake.nix

@@ -0,0 +1,27 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+
+    home-manager = {
+      url = "github:nix-community/home-manager/release-25.11";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    ...
+  } @ inputs: {
+    nixosConfigurations.mudics = nixpkgs.lib.nixosSystem {
+      system = "x86_64-linux";
+      specialArgs = {
+        inherit inputs;
+      };
+      modules = [
+        ./configuration.nix
+        inputs.home-manager.nixosModules.default
+      ];
+    };
+  };
+}

nixos/update.nu

@@ -0,0 +1,62 @@
+#!/usr/bin/env nu
+
+print "Checking if we have an internet connection ..."
+
+if (ping google.com -c 5 -W 10 -s 1400 | complete | get exit_code) != 0 {
+    print "No internet connection. Exiting."
+    exit 1
+}
+
+print "Checking for new version of PLG-MuDiCS ..."
+if (new_version_available) {
+    print "New version available. Trying to update ..."
+
+    get_new_display_file
+    get_new_nixos_config
+}
+
+print "Done"
+
+def get_new_nixos_config [] {
+    let temp_folder_path = (mktemp -d "nixos-temp-XXXXXX")
+    let temp_file_path = (mktemp "nixos-temp-XXXXXX")
+    let nixos_config_path = "nixos"
+
+    http get https://github.com/PLG-Development/PLG-MuDiCS/releases/latest/download/nixos.zip | save -p -f $temp_file_path
+
+    unzip $temp_file_path -d $temp_folder_path
+    rm -rf $nixos_config_path
+    mv $temp_folder_path $nixos_config_path
+
+    rm $temp_file_path
+
+    cp /etc/nixos/hardware-configuration.nix $"($nixos_config_path)/hardware-configuration.nix"
+}
+
+def get_new_display_file [] {
+    let temp_file_path = (mktemp "display-temp-XXXXXX")
+
+    http get https://github.com/PLG-Development/PLG-MuDiCS/releases/latest/download/plg-mudics-display | save -p -f $temp_file_path
+
+    chmod +x $temp_file_path
+    mv $temp_file_path plg-mudics-display
+}
+
+def new_version_available [] {
+    let file_path = "version.json"
+    if not ($file_path | path exists) {
+        { "version": ""} | to json | save version.json
+    }
+
+    let current_version = open $file_path | get version
+
+    let new_version = http get https://api.github.com/repos/PLG-Development/PLG-MuDiCS/releases/latest --max-time 5sec | get tag_name
+    # TODO: only write when all operations were successful
+    { "version": $new_version} | to json | save version.json -f
+
+    if $current_version == $new_version {
+        false
+    } else {
+        true
+    }
+}

nixos/wol.nu

@@ -0,0 +1,11 @@
+#!/usr/bin/env nu
+
+ls /sys/class/net | get name | path basename  | where $it != "lo" | each {|iface|
+    print $"Enabling WoL on ($iface)..."
+    try {
+        ethtool -s $iface wol g
+        print $"Successfully enabled WoL on ($iface)"
+    } catch {
+        print $"Failed to enable WoL on ($iface). It might not be supported."
+    }
+}

shared/embed.go

@@ -2,7 +2,12 @@ package shared
 
 import (
 	_ "embed"
+	"strings"
 )
 
 //go:embed splash_screen.html
 var SplashScreenTemplate string
+
+//go:embed version.txt
+var versionNotTrimmed string
+var Version = strings.TrimSpace(versionNotTrimmed)

shared/keys.json

@@ -0,0 +1,114 @@
+{
+  "Escape": "VK_ESC",
+  "Digit1": "VK_1",
+  "Digit2": "VK_2",
+  "Digit3": "VK_3",
+  "Digit4": "VK_4",
+  "Digit5": "VK_5",
+  "Digit6": "VK_6",
+  "Digit7": "VK_7",
+  "Digit8": "VK_8",
+  "Digit9": "VK_9",
+  "Digit0": "VK_0",
+  "KeyQ": "VK_Q",
+  "KeyW": "VK_W",
+  "KeyE": "VK_E",
+  "KeyR": "VK_R",
+  "KeyT": "VK_T",
+  "KeyY": "VK_Y",
+  "KeyU": "VK_U",
+  "KeyI": "VK_I",
+  "KeyO": "VK_O",
+  "KeyP": "VK_P",
+  "KeyA": "VK_A",
+  "KeyS": "VK_S",
+  "KeyD": "VK_D",
+  "KeyF": "VK_F",
+  "KeyG": "VK_G",
+  "KeyH": "VK_H",
+  "KeyJ": "VK_J",
+  "KeyK": "VK_K",
+  "KeyL": "VK_L",
+  "KeyZ": "VK_Z",
+  "KeyX": "VK_X",
+  "KeyC": "VK_C",
+  "KeyV": "VK_V",
+  "KeyB": "VK_B",
+  "KeyN": "VK_N",
+  "KeyM": "VK_M",
+  "F1": "VK_F1",
+  "F2": "VK_F2",
+  "F3": "VK_F3",
+  "F4": "VK_F4",
+  "F5": "VK_F5",
+  "F6": "VK_F6",
+  "F7": "VK_F7",
+  "F8": "VK_F8",
+  "F9": "VK_F9",
+  "F10": "VK_F10",
+  "F11": "VK_F11",
+  "F12": "VK_F12",
+  "F13": "VK_F13",
+  "F14": "VK_F14",
+  "F15": "VK_F15",
+  "F16": "VK_F16",
+  "F17": "VK_F17",
+  "F18": "VK_F18",
+  "F19": "VK_F19",
+  "F20": "VK_F20",
+  "F21": "VK_F21",
+  "F22": "VK_F22",
+  "F23": "VK_F23",
+  "F24": "VK_F24",
+  "NumLock": "VK_NUMLOCK",
+  "ScrollLock": "VK_SCROLLLOCK",
+  "CapsLock": "VK_CAPSLOCK",
+  "Minus": "VK_SP2",
+  "Equal": "VK_SP3",
+  "Backspace": "VK_BACKSPACE",
+  "Tab": "VK_TAB",
+  "BracketLeft": "VK_SP4",
+  "BracketRight": "VK_SP5",
+  "Enter": "VK_ENTER",
+  "Semicolon": "VK_SP6",
+  "Quote": "VK_SP7",
+  "Backquote": "VK_SP1",
+  "Backslash": "VK_SP8",
+  "Comma": "VK_SP9",
+  "Period": "VK_SP10",
+  "Slash": "VK_SP11",
+  "IntlBackslash": "VK_SP12",
+  "NumpadMultiply": "VK_KPASTERISK",
+  "NumpadDivide": "VK_KPSLASH",
+  "NumpadAdd": "VK_KPPLUS",
+  "NumpadSubtract": "VK_KPMINUS",
+  "NumpadDecimal": "VK_KPDOT",
+  "NumpadEnter": "VK_KPENTER",
+  "Space": "VK_SPACE",
+  "Numpad0": "VK_KP0",
+  "Numpad1": "VK_KP1",
+  "Numpad2": "VK_KP2",
+  "Numpad3": "VK_KP3",
+  "Numpad4": "VK_KP4",
+  "Numpad5": "VK_KP5",
+  "Numpad6": "VK_KP6",
+  "Numpad7": "VK_KP7",
+  "Numpad8": "VK_KP8",
+  "Numpad9": "VK_KP9",
+  "PageUp": "VK_PAGEUP",
+  "PageDown": "VK_PAGEDOWN",
+  "End": "VK_END",
+  "Home": "VK_HOME",
+  "ArrowLeft": "VK_LEFT",
+  "ArrowUp": "VK_UP",
+  "ArrowRight": "VK_RIGHT",
+  "ArrowDown": "VK_DOWN",
+  "PrintScreen": "VK_PRINT",
+  "Insert": "VK_INSERT",
+  "Delete": "VK_DELETE",
+  "Help": "VK_HELP",
+  "BrowserBack": "VK_BACK",
+  "Pause": "VK_PAUSE",
+  "Lang1": "VK_HANGUEL",
+  "Lang2": "VK_HANJA"
+}

shared/main.go

@@ -2,8 +2,10 @@ package shared
 
 import (
 	"bytes"
+	"context"
 	"errors"
 	"os/exec"
+	"time"
 )
 
 type CommandResponse struct {
@@ -12,7 +14,11 @@ type CommandResponse struct {
 	ExitCode int    `json:"exitCode"`
 }
 
+type ErrorResponse struct {
+	Description string `json:"description"`
+}
 
+var BadRequestDescription string = "Request uses invalid JSON syntax or does not follow request schema."
 
 func RunShellCommand(cmd *exec.Cmd) CommandResponse {
 	var stdout, stderr bytes.Buffer
@@ -20,6 +26,34 @@ func RunShellCommand(cmd *exec.Cmd) CommandResponse {
 	cmd.Stderr = &stderr
 	err := cmd.Run()
 
+	return parseCmdResult(cmd, stdout, stderr, err)
+
+}
+
+func RunShellCommandNonBlocking(cmd *exec.Cmd) CommandResponse {
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+	cmd.Start()
+
+	ctx, cancel := context.WithTimeout(context.Background(), 500*time.Millisecond)
+	defer cancel()
+
+	done := make(chan error, 1)
+
+	go func() {
+		done <- cmd.Wait()
+	}()
+
+	select {
+	case <-ctx.Done():
+		return CommandResponse{}
+	case err := <-done:
+		return parseCmdResult(cmd, stdout, stderr, err)
+	}
+}
+
+func parseCmdResult(cmd *exec.Cmd, stdout, stderr bytes.Buffer, err error) CommandResponse {
 	commandOutput := CommandResponse{
 		Stdout:   stdout.String(),
 		Stderr:   stderr.String(),
@@ -35,4 +69,4 @@ func RunShellCommand(cmd *exec.Cmd) CommandResponse {
 	}
 
 	return commandOutput
-}
+}