Frontend: restore PDF bytes loading for public viewer to fix loading, add SfTheme for app styling consistency

b0esche_cloud/lib/pages/public_file_viewer.dart

@@ -2,7 +2,7 @@ import 'package:flutter/material.dart';
 import 'package:go_router/go_router.dart';
 import 'package:web/web.dart' as web;
 import 'dart:ui_web' as ui_web;
-import 'package:syncfusion_flutter_pdfviewer/pdfviewer.dart';
+import 'package:syncfusion_flutter_theme/syncfusion_flutter_theme.dart';
 import 'package:video_player/video_player.dart';
 import 'package:flutter/foundation.dart' show kIsWeb;
 import '../theme/app_theme.dart';
@@ -25,6 +25,7 @@ class _PublicFileViewerState extends State<PublicFileViewer> {
   String? _error;
   Map<String, dynamic>? _fileData;
   VideoPlayerController? _videoController;
+  List<int>? _pdfBytes;
   String? _videoViewType;
 
   @override
@@ -49,6 +50,11 @@ class _PublicFileViewerState extends State<PublicFileViewer> {
         _isLoading = false;
       });
 
+      // Load PDF bytes if it's a PDF file
+      if (_isPdfFile()) {
+        await _loadPdfBytes();
+      }
+
       // Initialize video player if it's a video file
       if (_isVideoFile()) {
         await _initializeVideoPlayer();
@@ -61,7 +67,27 @@ class _PublicFileViewerState extends State<PublicFileViewer> {
     }
   }
 
-  Future<void> _initializeVideoPlayer() async {
+  Future<void> _loadPdfBytes() async {
+    if (_fileData?['viewUrl'] != null) {
+      try {
+        final apiClient = getIt<ApiClient>();
+        // Extract the path from viewUrl and call it directly
+        final viewUrl = _fileData!['viewUrl'] as String;
+        final uri = Uri.parse(viewUrl);
+        final path = uri.path + (uri.query.isNotEmpty ? '?${uri.query}' : '');
+
+        final bytes = await apiClient.getBytes(path);
+        setState(() {
+          _pdfBytes = bytes;
+        });
+      } catch (e) {
+        // If loading fails, we'll show an error or fallback
+        setState(() {
+          _error = 'Failed to load PDF content.';
+        });
+      }
+    }
+  }
     if (!kIsWeb) {
       // For mobile, use VideoPlayerController
       final url = _fileData?['viewUrl'] ?? _fileData?['downloadUrl'];
@@ -155,20 +181,49 @@ class _PublicFileViewerState extends State<PublicFileViewer> {
     if (viewUrl == null) return const SizedBox();
 
     if (_isPdfFile()) {
-      return Expanded(
-        child: SfPdfViewer.network(
-          viewUrl,
-          onDocumentLoadFailed: (details) {
-            setState(() {
-              _error = 'Failed to load PDF: ${details.description}';
-            });
-          },
-          canShowScrollHead: false,
-          canShowScrollStatus: false,
-          enableDoubleTapZooming: true,
-          enableTextSelection: false,
-        ),
-      );
+      if (_pdfBytes != null) {
+        return Expanded(
+          child: SfTheme(
+            data: SfThemeData(
+              pdfViewerThemeData: SfPdfViewerThemeData(
+                backgroundColor: AppTheme.primaryBackground,
+                progressBarColor: AppTheme.accentColor,
+                scrollStatusStyle: PdfScrollStatusStyle(
+                  backgroundColor: AppTheme.primaryBackground,
+                ),
+                scrollHeadStyle: PdfScrollHeadStyle(
+                  backgroundColor: AppTheme.accentColor,
+                ),
+              ),
+            ),
+            child: SfPdfViewer.memory(
+              Uint8List.fromList(_pdfBytes!),
+              canShowScrollHead: false,
+              canShowScrollStatus: false,
+              enableDoubleTapZooming: true,
+              enableTextSelection: false,
+            ),
+          ),
+        );
+      } else if (_error != null) {
+        return Expanded(
+          child: Center(
+            child: Text(
+              _error!,
+              style: TextStyle(color: AppTheme.primaryText),
+              textAlign: TextAlign.center,
+            ),
+          ),
+        );
+      } else {
+        return const Expanded(
+          child: Center(
+            child: CircularProgressIndicator(
+              valueColor: AlwaysStoppedAnimation<Color>(AppTheme.accentColor),
+            ),
+          ),
+        );
+      }
     } else if (_isVideoFile()) {
       if (kIsWeb && _videoViewType != null) {
         // Use HTML video element for web