New desktop

src/App/App.php

@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App;
+
+use Desktop\AppRegistry;
+use Desktop\DesktopState;
+use Desktop\SkinResolver;
+use Desktop\WindowManager;
+
+final class App
+{
+    public function __construct(
+        private readonly string $projectRoot,
+    ) {
+    }
+
+    /**
+     * @return array<string, mixed>
+     */
+    public function desktopPayload(): array
+    {
+        $registry = new AppRegistry($this->projectRoot . '/config/apps.php');
+        $skins = SkinResolver::all();
+        $activeSkin = SkinResolver::resolve($_GET['skin'] ?? null);
+        $windows = (new WindowManager($registry))->defaultWindows();
+
+        return [
+            'meta' => [
+                'title' => 'Kusche.Berlin Desktop UI',
+                'active_skin' => $activeSkin,
+                'available_skins' => $skins,
+            ],
+            'desktop' => [
+                'greeting' => 'Neue Desktop-Shell fuer Kusche.Berlin',
+                'wallpaper' => SkinResolver::wallpaper($activeSkin),
+                'workspace' => DesktopState::defaultWorkspace(),
+                'login' => [
+                    'authenticated' => false,
+                    'mode' => 'public-home',
+                    'keycloak_theme_handoff' => '/docs/keycloak-theme-handoff.md',
+                ],
+            ],
+            'apps' => $registry->all(),
+            'windows' => $windows,
+            'widgets' => DesktopState::defaultWidgets(),
+            'tray' => DesktopState::trayItems(),
+        ];
+    }
+}