Add last modified tracking: show 'Last modified: date by username' in document viewer

- Added modified_by column to files table
- Updated WOPI PutFile to track who modified the file
- Updated view handlers to return file metadata (name, size, lastModified, modifiedByName)
- Updated Flutter models and UI to display last modified info

b0esche_cloud/lib/blocs/document_viewer/document_viewer_bloc.dart

@@ -35,6 +35,7 @@ class DocumentViewerBloc
           viewUrl: session.viewUrl,
           caps: session.capabilities,
           token: session.token,
+          fileInfo: session.fileInfo,
         ),
       );
       _expiryTimer = Timer(

b0esche_cloud/lib/blocs/document_viewer/document_viewer_state.dart

@@ -16,15 +16,17 @@ class DocumentViewerReady extends DocumentViewerState {
   final Uri viewUrl;
   final DocumentCapabilities caps;
   final String token;
+  final FileInfo? fileInfo;
 
   const DocumentViewerReady({
     required this.viewUrl,
     required this.caps,
     required this.token,
+    this.fileInfo,
   });
 
   @override
-  List<Object> get props => [viewUrl, caps, token];
+  List<Object> get props => [viewUrl, caps, token, if (fileInfo != null) fileInfo!];
 }
 
 class DocumentViewerError extends DocumentViewerState {

b0esche_cloud/lib/models/document_capabilities.dart

@@ -1,5 +1,33 @@
 import 'package:equatable/equatable.dart';
 
+class FileInfo extends Equatable {
+  final String name;
+  final int size;
+  final DateTime? lastModified;
+  final String? modifiedByName;
+
+  const FileInfo({
+    required this.name,
+    required this.size,
+    this.lastModified,
+    this.modifiedByName,
+  });
+
+  @override
+  List<Object?> get props => [name, size, lastModified, modifiedByName];
+
+  factory FileInfo.fromJson(Map<String, dynamic> json) {
+    return FileInfo(
+      name: json['name'] ?? '',
+      size: json['size'] ?? 0,
+      lastModified: json['lastModified'] != null 
+          ? DateTime.tryParse(json['lastModified']) 
+          : null,
+      modifiedByName: json['modifiedByName'],
+    );
+  }
+}
+
 class DocumentCapabilities extends Equatable {
   final bool canEdit;
   final bool canAnnotate;

b0esche_cloud/lib/models/viewer_session.dart

@@ -6,16 +6,18 @@ class ViewerSession extends Equatable {
   final DocumentCapabilities capabilities;
   final String token;
   final DateTime expiresAt;
+  final FileInfo? fileInfo;
 
   const ViewerSession({
     required this.viewUrl,
     required this.capabilities,
     required this.token,
     required this.expiresAt,
+    this.fileInfo,
   });
 
   @override
-  List<Object?> get props => [viewUrl, capabilities, token, expiresAt];
+  List<Object?> get props => [viewUrl, capabilities, token, expiresAt, fileInfo];
 
   factory ViewerSession.fromJson(Map<String, dynamic> json) {
     return ViewerSession(
@@ -23,6 +25,7 @@ class ViewerSession extends Equatable {
       capabilities: DocumentCapabilities.fromJson(json['capabilities']),
       token: json['token'],
       expiresAt: DateTime.parse(json['expiresAt']),
+      fileInfo: json['fileInfo'] != null ? FileInfo.fromJson(json['fileInfo']) : null,
     );
   }
 }

b0esche_cloud/lib/pages/document_viewer.dart

@@ -112,6 +112,20 @@ class _DocumentViewerModalState extends State<DocumentViewerModal> {
           BlocBuilder<DocumentViewerBloc, DocumentViewerState>(
             builder: (context, state) {
               if (state is DocumentViewerReady) {
+                final fileInfo = state.fileInfo;
+                String lastModifiedText = 'Last modified: Unknown';
+                if (fileInfo != null) {
+                  final modifiedDate = fileInfo.lastModified;
+                  final modifiedBy = fileInfo.modifiedByName;
+                  if (modifiedDate != null) {
+                    final formattedDate = '${modifiedDate.day.toString().padLeft(2, '0')}.${modifiedDate.month.toString().padLeft(2, '0')}.${modifiedDate.year} ${modifiedDate.hour.toString().padLeft(2, '0')}:${modifiedDate.minute.toString().padLeft(2, '0')}';
+                    if (modifiedBy != null && modifiedBy.isNotEmpty) {
+                      lastModifiedText = 'Last modified: $formattedDate by $modifiedBy';
+                    } else {
+                      lastModifiedText = 'Last modified: $formattedDate';
+                    }
+                  }
+                }
                 return Container(
                   height: 30,
                   alignment: Alignment.centerLeft,
@@ -119,9 +133,9 @@ class _DocumentViewerModalState extends State<DocumentViewerModal> {
                   decoration: BoxDecoration(
                     color: AppTheme.primaryBackground.withValues(alpha: 0.3),
                   ),
-                  child: const Text(
+                  child: Text(
-                    'Last modified: Unknown by Unknown (v1)',
+                    lastModifiedText,
-                    style: TextStyle(
+                    style: const TextStyle(
                       fontSize: 12,
                       color: AppTheme.secondaryText,
                     ),
@@ -561,13 +575,26 @@ class _DocumentViewerState extends State<DocumentViewer> {
             child: BlocBuilder<DocumentViewerBloc, DocumentViewerState>(
               builder: (context, state) {
                 if (state is DocumentViewerReady) {
-                  // Placeholder for meta
+                  final fileInfo = state.fileInfo;
+                  String lastModifiedText = 'Last modified: Unknown';
+                  if (fileInfo != null) {
+                    final modifiedDate = fileInfo.lastModified;
+                    final modifiedBy = fileInfo.modifiedByName;
+                    if (modifiedDate != null) {
+                      final formattedDate = '${modifiedDate.day.toString().padLeft(2, '0')}.${modifiedDate.month.toString().padLeft(2, '0')}.${modifiedDate.year} ${modifiedDate.hour.toString().padLeft(2, '0')}:${modifiedDate.minute.toString().padLeft(2, '0')}';
+                      if (modifiedBy != null && modifiedBy.isNotEmpty) {
+                        lastModifiedText = 'Last modified: $formattedDate by $modifiedBy';
+                      } else {
+                        lastModifiedText = 'Last modified: $formattedDate';
+                      }
+                    }
+                  }
                   return Container(
                     height: 30,
                     alignment: Alignment.centerLeft,
                     padding: const EdgeInsets.symmetric(horizontal: 16),
                     child: Text(
-                      'Last modified: Unknown by Unknown (v1)',
+                      lastModifiedText,
                       style: const TextStyle(fontSize: 12),
                     ),
                   );

b0esche_cloud/lib/repositories/mock_file_repository.dart

@@ -1,293 +0,0 @@
-import '../models/file_item.dart';
-import '../models/viewer_session.dart';
-import '../models/editor_session.dart';
-import '../models/annotation.dart';
-import '../models/document_capabilities.dart';
-import '../models/api_error.dart';
-import '../repositories/file_repository.dart';
-import 'package:path/path.dart' as p;
-import 'package:uuid/uuid.dart';
-
-class MockFileRepository implements FileRepository {
-  final Map<String, List<FileItem>> _orgFiles = {};
-  final _uuid = const Uuid();
-
-  List<FileItem> _getFilesForOrg(String orgId) {
-    if (!_orgFiles.containsKey(orgId)) {
-      // Initialize with different files per org
-      if (orgId == 'org1') {
-        _orgFiles[orgId] = [
-          FileItem(
-            id: _uuid.v4(),
-            name: 'Personal Documents',
-            path: '/Personal Documents',
-            type: FileType.folder,
-            lastModified: DateTime.now(),
-          ),
-          FileItem(
-            id: _uuid.v4(),
-            name: 'Photos',
-            path: '/Photos',
-            type: FileType.folder,
-            lastModified: DateTime.now(),
-          ),
-          FileItem(
-            id: _uuid.v4(),
-            name: 'resume.pdf',
-            path: '/resume.pdf',
-            type: FileType.file,
-            size: 1024,
-            lastModified: DateTime.now(),
-          ),
-          FileItem(
-            id: _uuid.v4(),
-            name: 'notes.txt',
-            path: '/notes.txt',
-            type: FileType.file,
-            size: 256,
-            lastModified: DateTime.now(),
-          ),
-        ];
-      } else if (orgId == 'org2') {
-        _orgFiles[orgId] = [
-          FileItem(
-            id: _uuid.v4(),
-            name: 'Company Reports',
-            path: '/Company Reports',
-            type: FileType.folder,
-            lastModified: DateTime.now(),
-          ),
-          FileItem(
-            id: _uuid.v4(),
-            name: 'annual_report.pdf',
-            path: '/annual_report.pdf',
-            type: FileType.file,
-            size: 2048,
-            lastModified: DateTime.now(),
-          ),
-          FileItem(
-            id: _uuid.v4(),
-            name: 'presentation.pptx',
-            path: '/presentation.pptx',
-            type: FileType.file,
-            size: 4096,
-            lastModified: DateTime.now(),
-          ),
-        ];
-      } else if (orgId == 'org3') {
-        _orgFiles[orgId] = [
-          FileItem(
-            id: _uuid.v4(),
-            name: 'Project Code',
-            path: '/Project Code',
-            type: FileType.folder,
-            lastModified: DateTime.now(),
-          ),
-          FileItem(
-            id: _uuid.v4(),
-            name: 'side_project.dart',
-            path: '/side_project.dart',
-            type: FileType.file,
-            size: 512,
-            lastModified: DateTime.now(),
-          ),
-        ];
-      } else {
-        // Default for new orgs
-        _orgFiles[orgId] = [];
-      }
-    }
-    return _orgFiles[orgId]!;
-  }
-
-  @override
-  Future<List<FileItem>> getFiles(String orgId, String path) async {
-    await Future.delayed(const Duration(seconds: 1));
-    final files = _getFilesForOrg(orgId);
-    if (path == '/') {
-      return files.where((f) => !f.path.substring(1).contains('/')).toList();
-    } else {
-      return files
-          .where((f) => f.path.startsWith('$path/') && f.path != path)
-          .toList();
-    }
-  }
-
-  @override
-  Future<FileItem?> getFile(String orgId, String path) async {
-    final files = _getFilesForOrg(orgId);
-    final index = files.indexWhere((f) => f.path == path);
-    return index != -1 ? files[index] : null;
-  }
-
-  @override
-  Future<EditorSession> requestEditorSession(
-    String orgId,
-    String fileId,
-  ) async {
-    await Future.delayed(const Duration(seconds: 1));
-    // Mock: determine editability
-    final isEditable =
-        fileId.endsWith('.docx') ||
-        fileId.endsWith('.xlsx') ||
-        fileId.endsWith('.pptx');
-    final editUrl = Uri.parse(
-      'https://office.b0esche.cloud/editor/$orgId/$fileId?editable=$isEditable',
-    );
-    final expiresAt = DateTime.now().add(const Duration(minutes: 30));
-    return EditorSession(
-      editUrl: editUrl,
-      token: 'mock-editor-token',
-      readOnly: !isEditable,
-      expiresAt: expiresAt,
-    );
-  }
-
-  @override
-  Future<void> deleteFile(String orgId, String path) async {
-    final files = _getFilesForOrg(orgId);
-    files.removeWhere((f) => f.path == path);
-  }
-
-  @override
-  Future<void> createFolder(
-    String orgId,
-    String parentPath,
-    String folderName,
-  ) async {
-    await Future.delayed(const Duration(seconds: 1));
-    final normalizedName = folderName.startsWith('/')
-        ? folderName.substring(1)
-        : folderName;
-    final newPath = parentPath == '/'
-        ? '/$normalizedName'
-        : '$parentPath/$normalizedName';
-    final files = _getFilesForOrg(orgId);
-    files.add(
-      FileItem(
-        id: _uuid.v4(),
-        name: normalizedName,
-        path: newPath,
-        type: FileType.folder,
-        lastModified: DateTime.now(),
-      ),
-    );
-  }
-
-  @override
-  Future<void> moveFile(
-    String orgId,
-    String sourcePath,
-    String targetPath,
-  ) async {
-    await Future.delayed(const Duration(seconds: 1));
-    final files = _getFilesForOrg(orgId);
-    final fileIndex = files.indexWhere((f) => f.path == sourcePath);
-    if (fileIndex != -1) {
-      final file = files[fileIndex];
-      final newName = file.path.split('/').last;
-      final newPath = targetPath == '/' ? '/$newName' : '$targetPath/$newName';
-      files[fileIndex] = FileItem(
-        id: file.id,
-        name: file.name,
-        path: newPath,
-        type: file.type,
-        size: file.size,
-        lastModified: DateTime.now(),
-      );
-    }
-  }
-
-  @override
-  Future<void> renameFile(String orgId, String path, String newName) async {
-    await Future.delayed(const Duration(seconds: 1));
-    final files = _getFilesForOrg(orgId);
-    final fileIndex = files.indexWhere((f) => f.path == path);
-    if (fileIndex != -1) {
-      final file = files[fileIndex];
-      final parentPath = p.dirname(path);
-      final newPath = parentPath == '.' ? '/$newName' : '$parentPath/$newName';
-      files[fileIndex] = FileItem(
-        id: file.id,
-        name: newName,
-        path: newPath,
-        type: file.type,
-        size: file.size,
-        lastModified: DateTime.now(),
-      );
-    }
-  }
-
-  @override
-  Future<List<FileItem>> searchFiles(String orgId, String query) async {
-    await Future.delayed(const Duration(seconds: 1));
-    final files = _getFilesForOrg(orgId);
-    return files
-        .where((f) => f.name.toLowerCase().contains(query.toLowerCase()))
-        .toList();
-  }
-
-  @override
-  Future<void> uploadFile(String orgId, FileItem file) async {
-    await Future.delayed(const Duration(seconds: 1));
-    final files = _getFilesForOrg(orgId);
-    files.add(
-      FileItem(
-        id: _uuid.v4(),
-        name: file.name,
-        path: file.path,
-        type: file.type,
-        size: file.size,
-        lastModified: file.lastModified,
-      ),
-    );
-  }
-
-  @override
-  Future<ViewerSession> requestViewerSession(
-    String orgId,
-    String fileId,
-  ) async {
-    await Future.delayed(const Duration(seconds: 1));
-    if (fileId.contains('forbidden')) {
-      throw ApiError(
-        code: 'permission_denied',
-        message: 'Access denied',
-        status: 403,
-      );
-    }
-    if (fileId.contains('notfound')) {
-      throw ApiError(code: 'not_found', message: 'File not found', status: 404);
-    }
-    // Mock: assume fileId is path, determine if PDF
-    final isPdf = fileId.endsWith('.pdf');
-    final caps = DocumentCapabilities(
-      canEdit: !isPdf && (fileId.endsWith('.docx') || fileId.endsWith('.xlsx')),
-      canAnnotate: isPdf,
-      isPdf: isPdf,
-      mimeType: isPdf ? 'application/pdf' : 'application/octet-stream',
-    );
-    // Mock URL
-    final viewUrl = Uri.parse(
-      'https://office.b0esche.cloud/viewer/$orgId/$fileId',
-    );
-    final token = 'mock-viewer-token';
-    final expiresAt = DateTime.now().add(const Duration(minutes: 30));
-    return ViewerSession(
-      viewUrl: viewUrl,
-      capabilities: caps,
-      token: token,
-      expiresAt: expiresAt,
-    );
-  }
-
-  @override
-  Future<void> saveAnnotations(
-    String orgId,
-    String fileId,
-    List<Annotation> annotations,
-  ) async {
-    await Future.delayed(const Duration(seconds: 2));
-    // Mock: just delay, assume success
-  }
-}

go_cloud/internal/database/db.go

@@ -126,15 +126,17 @@ type Activity struct {
 }
 
 type File struct {
-	ID           uuid.UUID
+	ID             uuid.UUID
-	OrgID        *uuid.UUID
+	OrgID          *uuid.UUID
-	UserID       *uuid.UUID
+	UserID         *uuid.UUID
-	Name         string
+	Name           string
-	Path         string
+	Path           string
-	Type         string
+	Type           string
-	Size         int64
+	Size           int64
-	LastModified time.Time
+	LastModified   time.Time
-	CreatedAt    time.Time
+	CreatedAt      time.Time
+	ModifiedBy     *uuid.UUID
+	ModifiedByName string
 }
 
 func (db *DB) GetOrCreateUser(ctx context.Context, sub, email, name string) (*User, error) {
@@ -465,12 +467,17 @@ func (db *DB) GetFileByID(ctx context.Context, fileID uuid.UUID) (*File, error)
 	var f File
 	var orgNull sql.NullString
 	var userNull sql.NullString
+	var modifiedByNull sql.NullString
+	var modifiedByNameNull sql.NullString
 
 	err := db.QueryRowContext(ctx, `
-		SELECT id, org_id::text, user_id::text, name, path, type, size, last_modified, created_at
+		SELECT f.id, f.org_id::text, f.user_id::text, f.name, f.path, f.type, f.size, f.last_modified, f.created_at,
-		FROM files
+		       f.modified_by::text, u.display_name
-		WHERE id = $1
+		FROM files f
-	`, fileID).Scan(&f.ID, &orgNull, &userNull, &f.Name, &f.Path, &f.Type, &f.Size, &f.LastModified, &f.CreatedAt)
+		LEFT JOIN users u ON f.modified_by = u.id
+		WHERE f.id = $1
+	`, fileID).Scan(&f.ID, &orgNull, &userNull, &f.Name, &f.Path, &f.Type, &f.Size, &f.LastModified, &f.CreatedAt,
+		&modifiedByNull, &modifiedByNameNull)
 
 	if err != nil {
 		return nil, err
@@ -484,17 +491,24 @@ func (db *DB) GetFileByID(ctx context.Context, fileID uuid.UUID) (*File, error)
 		uid, _ := uuid.Parse(userNull.String)
 		f.UserID = &uid
 	}
+	if modifiedByNull.Valid {
+		mid, _ := uuid.Parse(modifiedByNull.String)
+		f.ModifiedBy = &mid
+	}
+	if modifiedByNameNull.Valid {
+		f.ModifiedByName = modifiedByNameNull.String
+	}
 
 	return &f, nil
 }
 
-// UpdateFileSize updates the size and modification time of a file
+// UpdateFileSize updates the size, modification time, and modifier of a file
-func (db *DB) UpdateFileSize(ctx context.Context, fileID uuid.UUID, size int64) error {
+func (db *DB) UpdateFileSize(ctx context.Context, fileID uuid.UUID, size int64, modifiedBy *uuid.UUID) error {
 	_, err := db.ExecContext(ctx, `
 		UPDATE files
-		SET size = $1, last_modified = NOW()
+		SET size = $1, last_modified = NOW(), modified_by = $3
 		WHERE id = $2
-	`, size, fileID)
+	`, size, fileID, modifiedBy)
 	return err
 }
 

go_cloud/internal/http/routes.go

@@ -520,6 +520,12 @@ func viewerHandler(w http.ResponseWriter, r *http.Request, db *database.DB, jwtM
 			IsPdf       bool   `json:"isPdf"`
 			MimeType    string `json:"mimeType"`
 		} `json:"capabilities"`
+		FileInfo struct {
+			Name           string `json:"name"`
+			Size           int64  `json:"size"`
+			LastModified   string `json:"lastModified"`
+			ModifiedByName string `json:"modifiedByName"`
+		} `json:"fileInfo"`
 		ExpiresAt string `json:"expiresAt"`
 	}{
 		ViewUrl: downloadPath,
@@ -530,6 +536,17 @@ func viewerHandler(w http.ResponseWriter, r *http.Request, db *database.DB, jwtM
 			IsPdf       bool   `json:"isPdf"`
 			MimeType    string `json:"mimeType"`
 		}{CanEdit: false, CanAnnotate: isPdf, IsPdf: isPdf, MimeType: mimeType},
+		FileInfo: struct {
+			Name           string `json:"name"`
+			Size           int64  `json:"size"`
+			LastModified   string `json:"lastModified"`
+			ModifiedByName string `json:"modifiedByName"`
+		}{
+			Name:           file.Name,
+			Size:           file.Size,
+			LastModified:   file.LastModified.UTC().Format(time.RFC3339),
+			ModifiedByName: file.ModifiedByName,
+		},
 		ExpiresAt: time.Now().Add(24 * time.Hour).UTC().Format(time.RFC3339),
 	}
 
@@ -606,6 +623,12 @@ func userViewerHandler(w http.ResponseWriter, r *http.Request, db *database.DB,
 			IsPdf       bool   `json:"isPdf"`
 			MimeType    string `json:"mimeType"`
 		} `json:"capabilities"`
+		FileInfo struct {
+			Name           string `json:"name"`
+			Size           int64  `json:"size"`
+			LastModified   string `json:"lastModified"`
+			ModifiedByName string `json:"modifiedByName"`
+		} `json:"fileInfo"`
 		ExpiresAt string `json:"expiresAt"`
 	}{
 		ViewUrl: downloadPath,
@@ -621,6 +644,17 @@ func userViewerHandler(w http.ResponseWriter, r *http.Request, db *database.DB,
 			IsPdf:       isPdf,
 			MimeType:    mimeType,
 		},
+		FileInfo: struct {
+			Name           string `json:"name"`
+			Size           int64  `json:"size"`
+			LastModified   string `json:"lastModified"`
+			ModifiedByName string `json:"modifiedByName"`
+		}{
+			Name:           file.Name,
+			Size:           file.Size,
+			LastModified:   file.LastModified.UTC().Format(time.RFC3339),
+			ModifiedByName: file.ModifiedByName,
+		},
 		ExpiresAt: time.Now().Add(24 * time.Hour).UTC().Format(time.RFC3339),
 	}
 

go_cloud/internal/http/wopi_handlers.go

@@ -512,7 +512,7 @@ func wopiPutFileHandler(w http.ResponseWriter, r *http.Request, db *database.DB,
 
 	// Update file size and modification time in database
 	newSize := int64(len(content))
-	err = db.UpdateFileSize(r.Context(), fileUUID, newSize)
+	err = db.UpdateFileSize(r.Context(), fileUUID, newSize, &userID)
 	if err != nil {
 		fmt.Printf("[WOPI-STORAGE] Failed to update file size: file=%s error=%v\n", fileID, err)
 		// Don't fail the upload, just log the warning