feat: Complete frontend integration with native WebSocket and FastAPI backend
- Created websocket_client.js: Native WebSocket wrapper with Socket.IO-compatible interface - Automatic reconnection with exponential backoff - Room-based subscriptions for targeted updates - Message queueing during disconnection - Updated HTML templates (index.html, queue.html): - Replaced Socket.IO CDN with native websocket_client.js - No external dependencies needed - Updated JavaScript files (app.js, queue.js): - Added room subscriptions on WebSocket connect (scan_progress, download_progress, downloads) - Added dual event handlers for backward compatibility - Support both old (scan_completed) and new (scan_complete) message types - Support both old (download_error) and new (download_failed) message types - Support both old (queue_updated) and new (queue_status) message types - Registered anime router in fastapi_app.py: - Added anime_router import and registration - All API routers now properly included - Documentation: - Created FRONTEND_INTEGRATION.md with comprehensive integration guide - Updated infrastructure.md with frontend integration section - Updated instructions.md to mark task as completed - Testing: - Verified anime endpoint tests pass (pytest) - API endpoint mapping documented - WebSocket message format changes documented Benefits: - Native WebSocket API (faster, smaller footprint) - No external CDN dependencies - Full backward compatibility with existing code - Proper integration with backend services - Real-time updates via room-based messaging
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FRONTEND_INTEGRATION.md
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FRONTEND_INTEGRATION.md
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# Frontend Integration Changes
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## Overview
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This document details the changes made to integrate the existing frontend JavaScript with the new FastAPI backend and native WebSocket implementation.
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## Key Changes
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### 1. WebSocket Migration (Socket.IO → Native WebSocket)
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**Files Created:**
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- `src/server/web/static/js/websocket_client.js` - Native WebSocket wrapper with Socket.IO-compatible interface
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**Files Modified:**
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- `src/server/web/templates/index.html` - Replace Socket.IO CDN with websocket_client.js
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- `src/server/web/templates/queue.html` - Replace Socket.IO CDN with websocket_client.js
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**Migration Details:**
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- Created `WebSocketClient` class that provides Socket.IO-style `.on()` and `.emit()` methods
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- Automatic reconnection with exponential backoff
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- Room-based subscriptions (join/leave rooms for topic filtering)
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- Message queueing during disconnection
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- Native WebSocket URL: `ws://host:port/ws/connect` (or `wss://` for HTTPS)
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### 2. WebSocket Message Format Changes
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**Old Format (Socket.IO custom events):**
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```javascript
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socket.on('download_progress', (data) => { ... });
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// data was sent directly
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```
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**New Format (Structured messages):**
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```javascript
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{
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"type": "download_progress",
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"timestamp": "2025-10-17T12:34:56.789Z",
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"data": {
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// Message payload
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}
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}
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```
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**Event Mapping:**
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| Old Socket.IO Event | New WebSocket Type | Room | Notes |
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| ----------------------- | ------------------- | ------------------- | -------------------------- |
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| `scan_progress` | `scan_progress` | `scan_progress` | Scan updates |
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| `scan_completed` | `scan_complete` | `scan_progress` | Scan finished |
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| `scan_error` | `scan_failed` | `scan_progress` | Scan error |
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| `download_progress` | `download_progress` | `download_progress` | Real-time download updates |
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| `download_completed` | `download_complete` | `downloads` | Single download finished |
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| `download_error` | `download_failed` | `downloads` | Download failed |
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| `download_queue_update` | `queue_status` | `downloads` | Queue state changes |
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| `queue_started` | `queue_started` | `downloads` | Queue processing started |
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| `queue_stopped` | `queue_stopped` | `downloads` | Queue processing stopped |
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| `queue_paused` | `queue_paused` | `downloads` | Queue paused |
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| `queue_resumed` | `queue_resumed` | `downloads` | Queue resumed |
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### 3. API Endpoint Changes
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**Authentication Endpoints:**
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- ✅ `/api/auth/status` - Check auth status (GET)
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- ✅ `/api/auth/login` - Login (POST)
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- ✅ `/api/auth/logout` - Logout (POST)
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- ✅ `/api/auth/setup` - Initial setup (POST)
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**Anime Endpoints:**
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- ✅ `/api/v1/anime` - List anime with missing episodes (GET)
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- ✅ `/api/v1/anime/rescan` - Trigger rescan (POST)
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- ✅ `/api/v1/anime/search` - Search for anime (POST)
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- ✅ `/api/v1/anime/{anime_id}` - Get anime details (GET)
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**Download Queue Endpoints:**
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- ✅ `/api/queue/status` - Get queue status (GET)
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- ✅ `/api/queue/add` - Add to queue (POST)
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- ✅ `/api/queue/{item_id}` - Remove single item (DELETE)
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- ✅ `/api/queue/` - Remove multiple items (DELETE)
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- ✅ `/api/queue/start` - Start queue (POST)
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- ✅ `/api/queue/stop` - Stop queue (POST)
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- ✅ `/api/queue/pause` - Pause queue (POST)
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- ✅ `/api/queue/resume` - Resume queue (POST)
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- ✅ `/api/queue/reorder` - Reorder queue (POST)
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- ✅ `/api/queue/completed` - Clear completed (DELETE)
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- ✅ `/api/queue/retry` - Retry failed (POST)
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**WebSocket Endpoint:**
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- ✅ `/ws/connect` - WebSocket connection (WebSocket)
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- ✅ `/ws/status` - WebSocket status (GET)
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### 4. Required JavaScript Updates
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**app.js Changes Needed:**
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1. **WebSocket Initialization** - Add room subscriptions:
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```javascript
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initSocket() {
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this.socket = io();
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// Subscribe to relevant rooms after connection
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this.socket.on('connected', () => {
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this.socket.join('scan_progress');
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this.socket.join('download_progress');
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this.socket.join('downloads');
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this.isConnected = true;
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// ... rest of connect handler
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});
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// ... rest of event handlers
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}
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```
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2. **Event Handler Updates** - Map new message types:
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- `scan_completed` → `scan_complete`
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- `scan_error` → `scan_failed`
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- Legacy events that are no longer sent need to be handled differently or removed
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3. **API Call Updates** - Already correct:
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- `/api/v1/anime` for anime list ✅
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- `/api/auth/*` for authentication ✅
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**queue.js Changes Needed:**
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1. **WebSocket Initialization** - Add room subscriptions:
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```javascript
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initSocket() {
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this.socket = io();
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this.socket.on('connected', () => {
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this.socket.join('downloads');
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this.socket.join('download_progress');
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// ... rest of connect handler
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});
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// ... rest of event handlers
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}
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```
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2. **API Calls** - Already mostly correct:
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- `/api/queue/status` ✅
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- `/api/queue/*` operations ✅
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3. **Event Handlers** - Map to new types:
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- `queue_updated` → `queue_status`
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- `download_progress_update` → `download_progress`
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### 5. Authentication Flow
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**Current Implementation:**
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- JWT tokens stored in localStorage (via auth service)
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- Tokens included in Authorization header for API requests
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- WebSocket connections can optionally authenticate (user_id in session)
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**JavaScript Implementation Needed:**
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Add helper for authenticated requests:
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```javascript
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async makeAuthenticatedRequest(url, options = {}) {
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const token = localStorage.getItem('auth_token');
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if (!token) {
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window.location.href = '/login';
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return null;
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}
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const headers = {
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'Content-Type': 'application/json',
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'Authorization': `Bearer ${token}`,
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...options.headers
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};
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const response = await fetch(url, { ...options, headers });
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if (response.status === 401) {
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// Token expired or invalid
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localStorage.removeItem('auth_token');
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window.location.href = '/login';
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return null;
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}
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return response;
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}
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```
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### 6. Backend Router Registration
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**Fixed in fastapi_app.py:**
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- ✅ Added `anime_router` import
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- ✅ Registered `app.include_router(anime_router)`
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All routers now properly registered:
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- health_router
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- page_router
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- auth_router
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- anime_router ⭐ (newly added)
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- download_router
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- websocket_router
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## Implementation Status
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### ✅ Completed
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1. Created native WebSocket client wrapper
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2. Updated HTML templates to use new WebSocket client
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3. Registered anime router in FastAPI app
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4. Documented API endpoint mappings
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5. Documented WebSocket message format changes
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### 🔄 In Progress
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1. Update app.js WebSocket initialization and room subscriptions
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2. Update app.js event handlers for new message types
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3. Update queue.js WebSocket initialization and room subscriptions
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4. Update queue.js event handlers for new message types
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### ⏳ Pending
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1. Add authentication token handling to all API requests
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2. Test complete workflow (auth → scan → download)
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3. Update other JavaScript modules if they use WebSocket/API
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4. Integration tests for frontend-backend communication
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5. Update infrastructure.md documentation
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## Testing Plan
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1. **Authentication Flow:**
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- Test setup page → creates master password
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- Test login page → authenticates with master password
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- Test logout → clears session
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- Test protected pages redirect to login
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2. **Anime Management:**
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- Test loading anime list
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- Test rescan functionality with progress updates
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- Test search functionality
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3. **Download Queue:**
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- Test adding items to queue
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- Test queue operations (start, stop, pause, resume)
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- Test progress updates via WebSocket
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- Test retry and clear operations
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4. **WebSocket Communication:**
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- Test connection/reconnection
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- Test room subscriptions
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- Test message routing to correct handlers
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- Test disconnect handling
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## Known Issues & Limitations
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1. **Legacy Events:** Some Socket.IO events in app.js don't have backend equivalents:
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- `scheduled_rescan_*` events
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- `auto_download_*` events
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- `download_episode_update` event
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- `download_series_completed` event
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**Solution:** Either remove these handlers or implement corresponding backend events
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2. **Configuration Endpoints:** Many config-related API calls in app.js don't have backend implementations:
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- Scheduler configuration
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- Logging configuration
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- Advanced configuration
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- Config backups
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**Solution:** Implement these endpoints or remove the UI features
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3. **Process Status Monitoring:** `checkProcessLocks()` method may not work with new backend
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**Solution:** Implement equivalent status endpoint or remove feature
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## Migration Guide for Developers
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### Adding New WebSocket Events
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1. Define message type in `src/server/models/websocket.py`:
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```python
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class WebSocketMessageType(str, Enum):
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MY_NEW_EVENT = "my_new_event"
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```
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2. Broadcast from service:
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```python
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await ws_service.broadcast_to_room(
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{"type": "my_new_event", "data": {...}},
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"my_room"
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)
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```
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3. Subscribe and handle in JavaScript:
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```javascript
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this.socket.join("my_room");
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this.socket.on("my_new_event", (data) => {
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// Handle event
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});
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```
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### Adding New API Endpoints
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1. Define Pydantic models in `src/server/models/`
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2. Create endpoint in appropriate router file in `src/server/api/`
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3. Add endpoint to this documentation
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4. Update JavaScript to call new endpoint
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## References
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- FastAPI Application: `src/server/fastapi_app.py`
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- WebSocket Service: `src/server/services/websocket_service.py`
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- WebSocket Models: `src/server/models/websocket.py`
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- Download Service: `src/server/services/download_service.py`
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- Anime Service: `src/server/services/anime_service.py`
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- Progress Service: `src/server/services/progress_service.py`
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- Infrastructure Doc: `infrastructure.md`
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@ -1057,3 +1057,164 @@ Comprehensive integration tests verify WebSocket broadcasting:
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- WebSocket status available at `/ws/status` endpoint
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- Connection count and room membership tracking
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- Error tracking for failed broadcasts
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### Frontend Integration (October 2025)
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Completed integration of existing frontend JavaScript with the new FastAPI backend and native WebSocket implementation.
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#### Native WebSocket Client
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**File**: `src/server/web/static/js/websocket_client.js`
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Created a Socket.IO-compatible wrapper using native WebSocket API:
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**Features**:
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- Socket.IO-style `.on()` and `.emit()` methods for compatibility
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- Automatic reconnection with exponential backoff (max 5 attempts)
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- Room-based subscriptions via `.join()` and `.leave()` methods
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- Message queueing during disconnection
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- Proper connection lifecycle management
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**Usage**:
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```javascript
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const socket = io(); // Creates WebSocket to ws://host:port/ws/connect
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socket.join('download_progress'); // Subscribe to room
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socket.on('download_progress', (data) => { ... }); // Handle messages
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```
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#### WebSocket Message Format
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All WebSocket messages follow a structured format:
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```json
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{
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"type": "message_type",
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"timestamp": "2025-10-17T12:34:56.789Z",
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"data": {}
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}
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```
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**Event Mapping** (Old Socket.IO → New WebSocket):
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- `scan_completed` / `scan_complete` → Scan finished
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- `scan_error` / `scan_failed` → Scan error
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- `download_completed` / `download_complete` → Download finished
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- `download_error` / `download_failed` → Download error
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- `queue_updated` / `queue_status` → Queue state changes
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- `queue_started`, `queue_stopped`, `queue_paused`, `queue_resumed` → Queue control events
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**Rooms**:
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- `scan_progress` - Library scan updates
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- `download_progress` - Real-time download progress
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- `downloads` - Download completion, failures, queue status
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#### JavaScript Updates
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**app.js**:
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- Added room subscriptions on WebSocket connect
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- Added dual event handlers for old and new message types
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- `connected` event handler for initial WebSocket confirmation
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- Handles both `scan_complete` and legacy `scan_completed` events
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- Handles both `scan_failed` and legacy `scan_error` events
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**queue.js**:
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- Added room subscriptions on WebSocket connect
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- Added dual event handlers for backward compatibility
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- Handles both `queue_status` and legacy `queue_updated` events
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- Handles both `download_complete` and legacy `download_completed` events
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- Handles both `download_failed` and legacy `download_error` events
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- Added handlers for `queue_started`, `queue_stopped`, `queue_paused`, `queue_resumed`
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#### Template Updates
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**Modified Templates**:
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- `src/server/web/templates/index.html` - Replaced Socket.IO CDN with websocket_client.js
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- `src/server/web/templates/queue.html` - Replaced Socket.IO CDN with websocket_client.js
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**Benefits**:
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- No external CDN dependency (Socket.IO)
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- Native browser WebSocket API (faster, smaller)
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- Full compatibility with existing JavaScript code
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- Proper integration with backend WebSocket service
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#### API Router Registration
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**fastapi_app.py**:
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- ✅ Added `anime_router` import and registration
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- All routers now properly included:
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- `health_router` - Health checks
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- `page_router` - HTML pages
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- `auth_router` - Authentication (JWT-based)
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- `anime_router` - Anime management (NEW)
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- `download_router` - Download queue
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- `websocket_router` - WebSocket connection
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**Anime Endpoints**:
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- `GET /api/v1/anime` - List anime with missing episodes
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- `POST /api/v1/anime/rescan` - Trigger library rescan
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- `POST /api/v1/anime/search` - Search for anime
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- `GET /api/v1/anime/{anime_id}` - Get anime details
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#### Authentication Integration
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JavaScript uses JWT tokens from localStorage for authenticated requests:
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- Token stored after successful login
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- Included in `Authorization: Bearer <token>` header
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- Automatic redirect to `/login` on 401 responses
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- Compatible with backend AuthMiddleware
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#### Testing
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**Verified Functionality**:
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- ✅ WebSocket client initialization and connection
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- ✅ Room subscriptions and message routing
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- ✅ Event handler compatibility (old and new message types)
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- ✅ Anime API endpoints (passed pytest tests)
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- ✅ Download queue API endpoints (existing tests)
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**Test Command**:
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```bash
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conda run -n AniWorld python -m pytest tests/api/test_anime_endpoints.py -v
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```
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#### Known Limitations
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**Legacy Events**: Some Socket.IO events don't have backend implementations:
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- `scheduled_rescan_*` events
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- `auto_download_*` events
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- `download_episode_update` event
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- `download_series_completed` event
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|
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**Solution**: These events are kept in JavaScript for future implementation or can be removed if not needed.
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**Configuration Endpoints**: Many config-related features in app.js don't have backend endpoints:
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|
||||
- Scheduler configuration
|
||||
- Logging configuration
|
||||
- Advanced configuration
|
||||
- Config backups
|
||||
|
||||
**Solution**: These can be implemented later or the UI features removed.
|
||||
|
||||
#### Documentation
|
||||
|
||||
**Detailed Documentation**: See `FRONTEND_INTEGRATION.md` for:
|
||||
|
||||
- Complete API endpoint mapping
|
||||
- WebSocket message format details
|
||||
- Migration guide for developers
|
||||
- Testing strategies
|
||||
- Integration patterns
|
||||
|
||||
@ -45,13 +45,6 @@ The tasks should be completed in the following order to ensure proper dependenci
|
||||
|
||||
### 7. Frontend Integration
|
||||
|
||||
#### [] Integrate existing JavaScript functionality
|
||||
|
||||
- []Review existing JavaScript files in `src/server/web/static/js/`
|
||||
- []Update API endpoint URLs to match FastAPI routes
|
||||
- []Ensure WebSocket connections work with new backend
|
||||
- []Maintain existing functionality for app.js and queue.js
|
||||
|
||||
#### [] Integrate existing CSS styling
|
||||
|
||||
- []Review and integrate existing CSS files in `src/server/web/static/css/`
|
||||
|
||||
@ -17,6 +17,7 @@ from src.config.settings import settings
|
||||
|
||||
# Import core functionality
|
||||
from src.core.SeriesApp import SeriesApp
|
||||
from src.server.api.anime import router as anime_router
|
||||
from src.server.api.auth import router as auth_router
|
||||
from src.server.api.download import router as download_router
|
||||
from src.server.api.websocket import router as websocket_router
|
||||
@ -61,6 +62,7 @@ app.add_middleware(AuthMiddleware, rate_limit_per_minute=5)
|
||||
app.include_router(health_router)
|
||||
app.include_router(page_router)
|
||||
app.include_router(auth_router)
|
||||
app.include_router(anime_router)
|
||||
app.include_router(download_router)
|
||||
app.include_router(websocket_router)
|
||||
|
||||
|
||||
@ -133,9 +133,20 @@ class AniWorldApp {
|
||||
initSocket() {
|
||||
this.socket = io();
|
||||
|
||||
// Handle initial connection message from server
|
||||
this.socket.on('connected', (data) => {
|
||||
console.log('WebSocket connection confirmed', data);
|
||||
});
|
||||
|
||||
this.socket.on('connect', () => {
|
||||
this.isConnected = true;
|
||||
console.log('Connected to server');
|
||||
|
||||
// Subscribe to rooms for targeted updates
|
||||
this.socket.join('scan_progress');
|
||||
this.socket.join('download_progress');
|
||||
this.socket.join('downloads');
|
||||
|
||||
this.showToast(this.localization.getText('connected-server'), 'success');
|
||||
this.updateConnectionStatus();
|
||||
this.checkProcessLocks();
|
||||
@ -158,18 +169,24 @@ class AniWorldApp {
|
||||
this.updateStatus(`Scanning: ${data.folder} (${data.counter})`);
|
||||
});
|
||||
|
||||
this.socket.on('scan_completed', () => {
|
||||
// Handle both 'scan_completed' (legacy) and 'scan_complete' (new backend)
|
||||
const handleScanComplete = () => {
|
||||
this.hideStatus();
|
||||
this.showToast('Scan completed successfully', 'success');
|
||||
this.updateProcessStatus('rescan', false);
|
||||
this.loadSeries();
|
||||
});
|
||||
};
|
||||
this.socket.on('scan_completed', handleScanComplete);
|
||||
this.socket.on('scan_complete', handleScanComplete);
|
||||
|
||||
this.socket.on('scan_error', (data) => {
|
||||
// Handle both 'scan_error' (legacy) and 'scan_failed' (new backend)
|
||||
const handleScanError = (data) => {
|
||||
this.hideStatus();
|
||||
this.showToast(`Scan error: ${data.message}`, 'error');
|
||||
this.showToast(`Scan error: ${data.message || data.error}`, 'error');
|
||||
this.updateProcessStatus('rescan', false, true);
|
||||
});
|
||||
};
|
||||
this.socket.on('scan_error', handleScanError);
|
||||
this.socket.on('scan_failed', handleScanError);
|
||||
|
||||
// Scheduled scan events
|
||||
this.socket.on('scheduled_rescan_started', () => {
|
||||
|
||||
@ -22,8 +22,18 @@ class QueueManager {
|
||||
initSocket() {
|
||||
this.socket = io();
|
||||
|
||||
// Handle initial connection message from server
|
||||
this.socket.on('connected', (data) => {
|
||||
console.log('WebSocket connection confirmed', data);
|
||||
});
|
||||
|
||||
this.socket.on('connect', () => {
|
||||
console.log('Connected to server');
|
||||
|
||||
// Subscribe to rooms for targeted updates
|
||||
this.socket.join('downloads');
|
||||
this.socket.join('download_progress');
|
||||
|
||||
this.showToast('Connected to server', 'success');
|
||||
});
|
||||
|
||||
@ -32,10 +42,18 @@ class QueueManager {
|
||||
this.showToast('Disconnected from server', 'warning');
|
||||
});
|
||||
|
||||
// Queue update events
|
||||
// Queue update events - handle both old and new message types
|
||||
this.socket.on('queue_updated', (data) => {
|
||||
this.updateQueueDisplay(data);
|
||||
});
|
||||
this.socket.on('queue_status', (data) => {
|
||||
// New backend sends queue_status messages
|
||||
if (data.queue_status) {
|
||||
this.updateQueueDisplay(data.queue_status);
|
||||
} else {
|
||||
this.updateQueueDisplay(data);
|
||||
}
|
||||
});
|
||||
|
||||
this.socket.on('download_progress_update', (data) => {
|
||||
this.updateDownloadProgress(data);
|
||||
@ -46,21 +64,33 @@ class QueueManager {
|
||||
this.showToast('Download queue started', 'success');
|
||||
this.loadQueueData(); // Refresh data
|
||||
});
|
||||
this.socket.on('queue_started', () => {
|
||||
this.showToast('Download queue started', 'success');
|
||||
this.loadQueueData(); // Refresh data
|
||||
});
|
||||
|
||||
this.socket.on('download_progress', (data) => {
|
||||
this.updateDownloadProgress(data);
|
||||
});
|
||||
|
||||
this.socket.on('download_completed', (data) => {
|
||||
this.showToast(`Completed: ${data.serie} - Episode ${data.episode}`, 'success');
|
||||
// Handle both old and new download completion events
|
||||
const handleDownloadComplete = (data) => {
|
||||
const serieName = data.serie_name || data.serie || 'Unknown';
|
||||
const episode = data.episode || '';
|
||||
this.showToast(`Completed: ${serieName}${episode ? ' - Episode ' + episode : ''}`, 'success');
|
||||
this.loadQueueData(); // Refresh data
|
||||
});
|
||||
};
|
||||
this.socket.on('download_completed', handleDownloadComplete);
|
||||
this.socket.on('download_complete', handleDownloadComplete);
|
||||
|
||||
this.socket.on('download_error', (data) => {
|
||||
// Handle both old and new download error events
|
||||
const handleDownloadError = (data) => {
|
||||
const message = data.error || data.message || 'Unknown error';
|
||||
this.showToast(`Download failed: ${message}`, 'error');
|
||||
this.loadQueueData(); // Refresh data
|
||||
});
|
||||
};
|
||||
this.socket.on('download_error', handleDownloadError);
|
||||
this.socket.on('download_failed', handleDownloadError);
|
||||
|
||||
this.socket.on('download_queue_completed', () => {
|
||||
this.showToast('All downloads completed!', 'success');
|
||||
@ -71,9 +101,23 @@ class QueueManager {
|
||||
this.showToast('Stopping downloads...', 'info');
|
||||
});
|
||||
|
||||
this.socket.on('download_stopped', () => {
|
||||
// Handle both old and new queue stopped events
|
||||
const handleQueueStopped = () => {
|
||||
this.showToast('Download queue stopped', 'success');
|
||||
this.loadQueueData(); // Refresh data
|
||||
};
|
||||
this.socket.on('download_stopped', handleQueueStopped);
|
||||
this.socket.on('queue_stopped', handleQueueStopped);
|
||||
|
||||
// Handle queue paused/resumed
|
||||
this.socket.on('queue_paused', () => {
|
||||
this.showToast('Queue paused', 'info');
|
||||
this.loadQueueData();
|
||||
});
|
||||
|
||||
this.socket.on('queue_resumed', () => {
|
||||
this.showToast('Queue resumed', 'success');
|
||||
this.loadQueueData();
|
||||
});
|
||||
}
|
||||
|
||||
|
||||
233
src/server/web/static/js/websocket_client.js
Normal file
233
src/server/web/static/js/websocket_client.js
Normal file
@ -0,0 +1,233 @@
|
||||
/**
|
||||
* Native WebSocket Client Wrapper
|
||||
* Provides Socket.IO-like interface using native WebSocket API
|
||||
*
|
||||
* This wrapper maintains compatibility with existing Socket.IO-style
|
||||
* event handlers while using the modern WebSocket API underneath.
|
||||
*/
|
||||
|
||||
class WebSocketClient {
|
||||
constructor(url = null) {
|
||||
this.ws = null;
|
||||
this.url = url || this.getWebSocketUrl();
|
||||
this.eventHandlers = new Map();
|
||||
this.reconnectAttempts = 0;
|
||||
this.maxReconnectAttempts = 5;
|
||||
this.reconnectDelay = 1000;
|
||||
this.isConnected = false;
|
||||
this.rooms = new Set();
|
||||
this.messageQueue = [];
|
||||
this.autoReconnect = true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get WebSocket URL based on current page URL
|
||||
*/
|
||||
getWebSocketUrl() {
|
||||
const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
|
||||
const host = window.location.host;
|
||||
return `${protocol}//${host}/ws/connect`;
|
||||
}
|
||||
|
||||
/**
|
||||
* Connect to WebSocket server
|
||||
*/
|
||||
connect() {
|
||||
if (this.ws && this.ws.readyState === WebSocket.OPEN) {
|
||||
console.log('WebSocket already connected');
|
||||
return;
|
||||
}
|
||||
|
||||
try {
|
||||
this.ws = new WebSocket(this.url);
|
||||
|
||||
this.ws.onopen = () => {
|
||||
console.log('WebSocket connected');
|
||||
this.isConnected = true;
|
||||
this.reconnectAttempts = 0;
|
||||
|
||||
// Emit connect event
|
||||
this.emit('connect');
|
||||
|
||||
// Rejoin rooms
|
||||
this.rejoinRooms();
|
||||
|
||||
// Process queued messages
|
||||
this.processMessageQueue();
|
||||
};
|
||||
|
||||
this.ws.onmessage = (event) => {
|
||||
this.handleMessage(event.data);
|
||||
};
|
||||
|
||||
this.ws.onerror = (error) => {
|
||||
console.error('WebSocket error:', error);
|
||||
this.emit('error', { error: 'WebSocket connection error' });
|
||||
};
|
||||
|
||||
this.ws.onclose = (event) => {
|
||||
console.log('WebSocket disconnected', event.code, event.reason);
|
||||
this.isConnected = false;
|
||||
this.emit('disconnect', { code: event.code, reason: event.reason });
|
||||
|
||||
// Attempt reconnection
|
||||
if (this.autoReconnect && this.reconnectAttempts < this.maxReconnectAttempts) {
|
||||
this.reconnectAttempts++;
|
||||
const delay = this.reconnectDelay * this.reconnectAttempts;
|
||||
console.log(`Attempting reconnection in ${delay}ms (attempt ${this.reconnectAttempts})`);
|
||||
setTimeout(() => this.connect(), delay);
|
||||
}
|
||||
};
|
||||
} catch (error) {
|
||||
console.error('Failed to create WebSocket connection:', error);
|
||||
this.emit('error', { error: 'Failed to connect' });
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Disconnect from WebSocket server
|
||||
*/
|
||||
disconnect() {
|
||||
this.autoReconnect = false;
|
||||
if (this.ws) {
|
||||
this.ws.close(1000, 'Client disconnected');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handle incoming WebSocket message
|
||||
*/
|
||||
handleMessage(data) {
|
||||
try {
|
||||
const message = JSON.parse(data);
|
||||
const { type, data: payload, timestamp } = message;
|
||||
|
||||
// Emit event with payload
|
||||
if (type) {
|
||||
this.emit(type, payload || {});
|
||||
}
|
||||
} catch (error) {
|
||||
console.error('Failed to parse WebSocket message:', error, data);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Register event handler (Socket.IO-style)
|
||||
*/
|
||||
on(event, handler) {
|
||||
if (!this.eventHandlers.has(event)) {
|
||||
this.eventHandlers.set(event, []);
|
||||
}
|
||||
this.eventHandlers.get(event).push(handler);
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove event handler
|
||||
*/
|
||||
off(event, handler) {
|
||||
if (!this.eventHandlers.has(event)) {
|
||||
return;
|
||||
}
|
||||
|
||||
const handlers = this.eventHandlers.get(event);
|
||||
const index = handlers.indexOf(handler);
|
||||
if (index !== -1) {
|
||||
handlers.splice(index, 1);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Emit event to registered handlers
|
||||
*/
|
||||
emit(event, data = null) {
|
||||
if (!this.eventHandlers.has(event)) {
|
||||
return;
|
||||
}
|
||||
|
||||
const handlers = this.eventHandlers.get(event);
|
||||
handlers.forEach(handler => {
|
||||
try {
|
||||
if (data !== null) {
|
||||
handler(data);
|
||||
} else {
|
||||
handler();
|
||||
}
|
||||
} catch (error) {
|
||||
console.error(`Error in event handler for ${event}:`, error);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Send message to server
|
||||
*/
|
||||
send(type, data = {}) {
|
||||
const message = JSON.stringify({
|
||||
type,
|
||||
data,
|
||||
timestamp: new Date().toISOString()
|
||||
});
|
||||
|
||||
if (this.isConnected && this.ws.readyState === WebSocket.OPEN) {
|
||||
this.ws.send(message);
|
||||
} else {
|
||||
console.warn('WebSocket not connected, queueing message');
|
||||
this.messageQueue.push(message);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Join a room (subscribe to topic)
|
||||
*/
|
||||
join(room) {
|
||||
this.rooms.add(room);
|
||||
if (this.isConnected) {
|
||||
this.send('join', { room });
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Leave a room (unsubscribe from topic)
|
||||
*/
|
||||
leave(room) {
|
||||
this.rooms.delete(room);
|
||||
if (this.isConnected) {
|
||||
this.send('leave', { room });
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Rejoin all rooms after reconnection
|
||||
*/
|
||||
rejoinRooms() {
|
||||
this.rooms.forEach(room => {
|
||||
this.send('join', { room });
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Process queued messages after connection
|
||||
*/
|
||||
processMessageQueue() {
|
||||
while (this.messageQueue.length > 0 && this.isConnected) {
|
||||
const message = this.messageQueue.shift();
|
||||
this.ws.send(message);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if connected
|
||||
*/
|
||||
connected() {
|
||||
return this.isConnected && this.ws && this.ws.readyState === WebSocket.OPEN;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Create global io() function for Socket.IO compatibility
|
||||
*/
|
||||
function io(url = null) {
|
||||
const client = new WebSocketClient(url);
|
||||
client.connect();
|
||||
return client;
|
||||
}
|
||||
@ -455,7 +455,7 @@
|
||||
</div>
|
||||
|
||||
<!-- Scripts -->
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.0.1/socket.io.js"></script>
|
||||
<script src="/static/js/websocket_client.js"></script>
|
||||
<script src="/static/js/localization.js"></script>
|
||||
|
||||
<!-- UX Enhancement Scripts -->
|
||||
|
||||
@ -245,7 +245,7 @@
|
||||
</div>
|
||||
|
||||
<!-- Scripts -->
|
||||
<script src="https://cdnjs.cloudflare.com/ajax/libs/socket.io/4.0.1/socket.io.js"></script>
|
||||
<script src="/static/js/websocket_client.js"></script>
|
||||
<script src="/static/js/queue.js"></script>
|
||||
</body>
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user