implemented a comprehensive client-side demo mode triggered by a "demo@" username prefix, serving curated fixture data for all app modules

2026-07-07 20:24:16 +02:00
parent 2668b111f1
commit 9b74c9fd81
45 changed files with 1409 additions and 43 deletions
@@ -0,0 +1,155 @@
+import '../../marianumcloud/webdav/queries/list_files/cacheable_file.dart';
+import '../../marianumcloud/webdav/queries/list_files/list_files_response.dart';
+
+/// Curated WebDAV listings for the demo mode. Everything is built on
+/// [CacheableFile] (the app-level model the file UI renders) so no `nextcloud`
+/// DAV objects need to be faked and no network is ever touched.
+///
+/// `hasPreview`/`fileId` are left null on purpose: without them the file list
+/// won't try to fetch server-side thumbnails for the fixtures.
+class DemoFiles {
+  const DemoFiles._();
+
+  /// Returns the listing for [path] as passed to `FilesDataProvider.listFiles`
+  /// (`/` or empty for the root, otherwise the joined folder display names).
+  /// Unknown folders resolve to an empty listing rather than an error.
+  static ListFilesResponse listing(String path) {
+    final key = path.replaceAll('/', '').trim();
+    switch (key) {
+      case '':
+        return _root();
+      case 'Hausaufgaben':
+        return _hausaufgaben();
+      case 'Arbeitsblätter':
+        return _arbeitsblaetter();
+      case 'Klausuren':
+        return _klausuren();
+      case 'Schuljahr 2025-26':
+        return _schuljahr();
+      default:
+        return ListFilesResponse({});
+    }
+  }
+
+  static ListFilesResponse _root() => ListFilesResponse({
+    _folder('Hausaufgaben', daysAgo: 1),
+    _folder('Arbeitsblätter', daysAgo: 3),
+    _folder('Klausuren', daysAgo: 12),
+    _folder('Schuljahr 2025-26', daysAgo: 30),
+    _file('Deutsch Lektüre.pdf', size: 2_480_000, daysAgo: 2),
+    _file('Mathe Formelsammlung.pdf', size: 890_000, daysAgo: 9),
+    _file('Bio Referat.pptx', size: 5_120_000, daysAgo: 5),
+    _file('Stundenplan.pdf', size: 145_000, daysAgo: 14),
+  });
+
+  static ListFilesResponse _hausaufgaben() => ListFilesResponse({
+    _file(
+      'Deutsch Aufsatz.docx',
+      parent: 'Hausaufgaben',
+      size: 42_000,
+      daysAgo: 1,
+    ),
+    _file(
+      'Mathe Übungen KW28.pdf',
+      parent: 'Hausaufgaben',
+      size: 310_000,
+      daysAgo: 2,
+    ),
+    _file(
+      'Englisch Vokabeln.pdf',
+      parent: 'Hausaufgaben',
+      size: 96_000,
+      daysAgo: 4,
+    ),
+  });
+
+  static ListFilesResponse _arbeitsblaetter() => ListFilesResponse({
+    _file(
+      'Physik Optik.pdf',
+      parent: 'Arbeitsblätter',
+      size: 720_000,
+      daysAgo: 6,
+    ),
+    _file(
+      'Geschichte Weimar.pdf',
+      parent: 'Arbeitsblätter',
+      size: 540_000,
+      daysAgo: 8,
+    ),
+  });
+
+  static ListFilesResponse _klausuren() => ListFilesResponse({
+    _file(
+      'Mathe Klausur 1.pdf',
+      parent: 'Klausuren',
+      size: 630_000,
+      daysAgo: 20,
+    ),
+    _file(
+      'Deutsch Klausur 1.pdf',
+      parent: 'Klausuren',
+      size: 580_000,
+      daysAgo: 34,
+    ),
+  });
+
+  static ListFilesResponse _schuljahr() => ListFilesResponse({
+    _folder('Halbjahr 1', parent: 'Schuljahr 2025-26', daysAgo: 40),
+    _file(
+      'Klassenliste 10b.pdf',
+      parent: 'Schuljahr 2025-26',
+      size: 78_000,
+      daysAgo: 60,
+    ),
+  });
+
+  static CacheableFile _folder(
+    String name, {
+    String? parent,
+    required int daysAgo,
+  }) {
+    final base = parent == null ? '' : '/$parent';
+    return CacheableFile(
+      path: '$base/$name/',
+      isDirectory: true,
+      name: name,
+      modifiedAt: _relative(daysAgo),
+      createdAt: _relative(daysAgo + 30),
+    );
+  }
+
+  static CacheableFile _file(
+    String name, {
+    String? parent,
+    required int size,
+    required int daysAgo,
+  }) {
+    final base = parent == null ? '' : '/$parent';
+    return CacheableFile(
+      path: '$base/$name',
+      isDirectory: false,
+      name: name,
+      mimeType: _mimeFor(name),
+      size: size,
+      modifiedAt: _relative(daysAgo),
+      createdAt: _relative(daysAgo + 30),
+    );
+  }
+
+  static DateTime _relative(int daysAgo) =>
+      DateTime.now().subtract(Duration(days: daysAgo, hours: 3));
+
+  static String _mimeFor(String name) {
+    final ext = name.split('.').last.toLowerCase();
+    switch (ext) {
+      case 'pdf':
+        return 'application/pdf';
+      case 'pptx':
+        return 'application/vnd.openxmlformats-officedocument.presentationml.presentation';
+      case 'docx':
+        return 'application/vnd.openxmlformats-officedocument.wordprocessingml.document';
+      default:
+        return 'application/octet-stream';
+    }
+  }
+}