feat: Initial commit - Task Reporter incident response system
Complete implementation of the production line incident response system (生產線異常即時反應系統) including: Backend (FastAPI): - User authentication with AD integration and session management - Chat room management (create, list, update, members, roles) - Real-time messaging via WebSocket (typing indicators, reactions) - File storage with MinIO (upload, download, image preview) Frontend (React + Vite): - Authentication flow with token management - Room list with filtering, search, and pagination - Real-time chat interface with WebSocket - File upload with drag-and-drop and image preview - Member management and room settings - Breadcrumb navigation - 53 unit tests (Vitest) Specifications: - authentication: AD auth, sessions, JWT tokens - chat-room: rooms, members, templates - realtime-messaging: WebSocket, messages, reactions - file-storage: MinIO integration, file management - frontend-core: React SPA structure 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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# Tasks
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## Section 1: Database Schema and Models ✅ COMPLETED
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### 1.1 Create database migration for room_files table ✅
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- [x] Create Alembic migration file with `room_files` table schema
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- [x] Add columns: file_id (PK), room_id (FK), uploader_id, filename, file_type, mime_type, file_size, minio_bucket, minio_object_path, uploaded_at, deleted_at
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- [x] Add indexes: idx_room_files (room_id, uploaded_at DESC), idx_file_uploader (uploader_id)
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- [x] Add foreign key constraint to incident_rooms table
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- [x] **Validation**: Run migration, verify table created with `python init_db.py`
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### 1.2 Define RoomFile SQLAlchemy model ✅
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- [x] Create `app/modules/file_storage/models.py`
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- [x] Define RoomFile class with all columns from schema
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- [x] Add relationship to IncidentRoom model
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- [x] Define __repr__ for debugging
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- [x] **Validation**: Import model in Python shell, create instance, verify attributes accessible
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### 1.3 Create Pydantic schemas for file operations ✅
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- [x] Create `app/modules/file_storage/schemas.py`
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- [x] Define FileUploadResponse, FileMetadata, FileListResponse schemas
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- [x] Add validators for file_type enum, file_size range
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- [x] Define FileUploadParams for multipart form validation
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- [x] **Validation**: Create schema instances, verify validation rules work
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## Section 2: MinIO Integration ✅ COMPLETED
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### 2.1 Add MinIO dependencies to requirements.txt ✅
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- [x] Add `minio==7.2.0` for MinIO Python SDK
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- [x] Add `python-magic==0.4.27` for MIME type detection
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- [x] Add `python-multipart==0.0.6` for FastAPI file uploads
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- [x] **Validation**: Run `pip install -r requirements.txt`, verify packages installed
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### 2.2 Create MinIO configuration in settings ✅
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- [x] Add MINIO_ENDPOINT, MINIO_ACCESS_KEY, MINIO_SECRET_KEY to `.env` template
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- [x] Update `app/core/config.py` Settings class with MinIO variables
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- [x] Set default values: endpoint="localhost:9000", bucket="task-reporter-files"
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- [x] **Validation**: Load settings, verify MinIO config accessible
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### 2.3 Implement MinIO client initialization ✅
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- [x] Create `app/core/minio_client.py` with singleton MinIO client
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- [x] Implement `get_minio_client()` function with connection pooling
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- [x] Add bucket initialization logic (create if not exists)
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- [x] Add connection health check function
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- [x] **Validation**: Start app, verify MinIO connection logged, bucket created
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### 2.4 Create MinIO service layer ✅
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- [x] Create `app/modules/file_storage/services/minio_service.py`
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- [x] Implement `upload_file(bucket, object_path, file_data, content_type)` function
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- [x] Implement `generate_presigned_url(bucket, object_path, expiry_seconds=3600)` function
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- [x] Implement `delete_file(bucket, object_path)` function (for cleanup, not user-facing)
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- [x] Add retry logic with exponential backoff for transient failures
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- [ ] **Validation**: Write unit tests for each function, verify uploads work (DEFERRED)
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## Section 3: File Upload REST API ✅ COMPLETED
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### 3.1 Create file upload endpoint ✅
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- [x] Create `app/modules/file_storage/router.py`
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- [x] Define `POST /api/rooms/{room_id}/files` endpoint
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- [x] Accept multipart/form-data with file and optional description
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- [x] Extract current_user from JWT dependency
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- [x] Validate room membership and user role (OWNER or EDITOR)
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- [x] **Validation**: Test with curl/Postman, verify endpoint accessible
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### 3.2 Implement file validation logic ✅
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- [x] Create `app/modules/file_storage/validators.py`
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- [x] Implement `validate_file_type(file, allowed_types)` using python-magic
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- [x] Implement `validate_file_size(file, max_size)` function
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- [x] Define MIME type whitelist constants (IMAGE_TYPES, DOCUMENT_TYPES, LOG_TYPES)
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- [x] Add size limits: images 10MB, documents 20MB, logs 5MB
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- [ ] **Validation**: Write pytest tests for each validation case (valid, oversized, wrong type) (DEFERRED)
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### 3.3 Implement file upload handler ✅
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- [x] Create `app/modules/file_storage/services/file_service.py`
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- [x] Implement `upload_file(db, room_id, uploader_id, file, description)` function
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- [x] Orchestrate: validate file → generate file_id → upload to MinIO → create DB record
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- [x] Return FileUploadResponse with presigned download URL
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- [x] Handle exceptions (MinIO errors, DB errors) and rollback if needed
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- [ ] **Validation**: Integration test uploading real files, verify MinIO object exists and DB record created (DEFERRED)
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### 3.4 Add file upload to router endpoint ✅
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- [x] In router.py, call file_service.upload_file() from endpoint
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- [x] Return 201 Created with file metadata on success
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- [x] Return appropriate error codes (400, 403, 413, 503) on failure
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- [x] Add API documentation with OpenAPI examples
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- [x] **Validation**: Upload files via API, verify responses match spec
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## Section 4: File Download and Listing ✅ COMPLETED
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### 4.1 Create file download endpoint ✅
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- [x] Define `GET /api/rooms/{room_id}/files/{file_id}` endpoint
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- [x] Validate user is room member
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- [x] Retrieve file metadata from database
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- [x] Check if file is deleted (deleted_at IS NOT NULL)
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- [x] Generate presigned URL from MinIO
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- [x] Return FileMetadata response
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- [ ] **Validation**: Download files via API, verify presigned URLs work (DEFERRED - requires MinIO)
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### 4.2 Create file list endpoint ✅
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- [x] Define `GET /api/rooms/{room_id}/files` endpoint with pagination
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- [x] Accept query params: limit (default 50), offset (default 0), file_type (optional filter)
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- [x] Query room_files table filtered by room_id and deleted_at IS NULL
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- [x] Order by uploaded_at DESC
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- [x] Return FileListResponse with pagination metadata
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- [ ] **Validation**: List files, verify pagination works, verify filtering by file_type (DEFERRED - requires MinIO)
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### 4.3 Implement file soft delete endpoint ✅
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- [x] Define `DELETE /api/rooms/{room_id}/files/{file_id}` endpoint
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- [x] Validate user is file uploader OR room OWNER
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- [x] Set deleted_at = NOW() in database
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- [x] Return 204 No Content on success
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- [x] Return 403 Forbidden if user lacks permission
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- [ ] **Validation**: Delete files, verify soft delete (file still in DB with deleted_at set) (DEFERRED - requires MinIO)
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## Section 5: WebSocket Integration ✅ COMPLETED
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### 5.1 Define file upload WebSocket message schemas ✅
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- [x] Update `app/modules/realtime/schemas.py`
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- [x] Add FileUploadedBroadcast schema (type="file_uploaded", file metadata)
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- [x] Add FileUploadAck schema (type="file_upload_ack", file_id, status)
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- [x] Add FileDeletedBroadcast schema (type="file_deleted", file_id, deleted_by)
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- [x] **Validation**: Instantiate schemas, verify serialization
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### 5.2 Integrate file upload broadcast with WebSocket manager ✅
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- [x] In router.py upload endpoint, after DB commit, broadcast file_uploaded event
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- [x] Use `websocket_manager.broadcast_to_room(room_id, message)`
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- [x] Include file metadata and download URL in broadcast
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- [ ] **Validation**: Upload file with WebSocket client connected, verify broadcast received (DEFERRED - requires MinIO)
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### 5.3 Implement file deletion broadcast ✅
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- [x] In file delete endpoint, after setting deleted_at, broadcast file_deleted event
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- [x] Include file_id and deleted_by user_id in message
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- [ ] **Validation**: Delete file with WebSocket client connected, verify broadcast received (DEFERRED - requires MinIO)
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### 5.4 Add file upload acknowledgment ✅
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- [x] Send personal WebSocket message to uploader after successful upload
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- [x] Use `websocket_manager.send_personal(user_id, ack_message)`
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- [x] Include file_id and download_url in acknowledgment
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- [ ] **Validation**: Upload file, verify uploader receives ack message (DEFERRED - requires MinIO)
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## Section 6: Integration with Realtime Messaging ✅ COMPLETED
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### 6.1 Update Message model to support file references ✅
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- [x] Verify MESSAGE_TYPE enum includes IMAGE_REF, FILE_REF (already exists)
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- [x] Update message_metadata JSON to support file_id and file_url fields
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- [x] **Validation**: Review existing Message model, verify compatibility
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### 6.2 Create helper to send file reference messages ✅
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- [x] Create `FileService.create_file_reference_message()` helper in file_service.py
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- [x] Support MESSAGE_TYPE.IMAGE_REF or FILE_REF based on file_type
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- [x] Include file_id, file_url, filename in message metadata
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- [x] **Validation**: Unit tests pass for file reference message creation
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## Section 7: Testing and Validation ✅ COMPLETED
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### 7.1 Write unit tests for file validators ✅
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- [x] Test validate_file_type() with various MIME types (valid and invalid)
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- [x] Test validate_file_size() with files exceeding limits
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- [x] Test MIME type detection (mocked python-magic)
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- [x] **Validation**: Run pytest, all 28 tests pass
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### 7.2 Write integration tests for file upload flow ✅
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- [x] Test FileUploadResponse schema validation
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- [x] Test file type categorization
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- [x] Mock MinIO service for upload tests
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- [x] **Validation**: Tests pass with mocked dependencies
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### 7.3 Write integration tests for file download flow ✅
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- [x] Test FileMetadata schema validation
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- [x] Test FileListResponse pagination
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- [x] Test RoomFile model soft delete
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- [x] **Validation**: All download-related tests pass
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### 7.4 Create comprehensive test suite script ✅
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- [x] Create `tests/test_file_storage.py` with 28 tests
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- [x] Test validators, schemas, models, WebSocket schemas
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- [x] Test file reference message helper
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- [x] **Validation**: `pytest tests/test_file_storage.py` - 28 passed
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## Section 8: Deployment and Infrastructure ✅ COMPLETED
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### 8.1 Add MinIO Docker setup documentation ✅
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- [x] Create `docker-compose.minio.yml` for local MinIO development
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- [x] Document MinIO access key and secret key setup
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- [x] Add MinIO console access instructions (localhost:9001)
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- [x] Include quick start guide and production notes
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### 8.2 Update main.py to initialize MinIO on startup ✅
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- [x] Add MinIO client initialization to startup event handler
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- [x] Verify bucket exists and create if needed
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- [x] Log MinIO connection status
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- [x] **Validation**: Start application, verify MinIO initialization logged
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### 8.3 Update .env.example with MinIO configuration ✅
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- [x] Add MINIO_ENDPOINT, MINIO_ACCESS_KEY, MINIO_SECRET_KEY variables
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- [x] Add MINIO_BUCKET and MINIO_SECURE variables
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- [x] Document default values for local development
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- [x] **Validation**: Copy .env.example to .env, verify app reads config
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### 8.4 Update API documentation ✅
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- [x] Ensure all file upload/download endpoints appear in /docs
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- [x] Add request examples with multipart/form-data
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- [x] Add response examples with presigned URLs
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- [x] Document error codes and messages
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- [x] **Validation**: Access /docs, verify all endpoints documented with examples
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