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cline_docs/activeContext.md

@@ -7,6 +7,11 @@ c# Active Context
 - **COMPLETED: Enhanced Stats API Endpoint**: Successfully updated `/api/v1/stats/` endpoint with comprehensive platform statistics
 - **COMPLETED: Maps API Implementation**: Successfully implemented all map endpoints with full functionality
 - **COMPLETED: Comprehensive Rides Filtering System**: Successfully implemented comprehensive filtering capabilities for rides API with 25+ filter parameters and enhanced filter options endpoint
+- **COMPLETED: New Content API Field Updates**: Successfully updated the "newly_opened" API response to replace "location" field with "park" and "date_opened" fields
+- **COMPLETED: Celery Integration for Trending Content**: Successfully implemented Celery asynchronous task processing for trending content calculations with Redis backend
+- **COMPLETED: Manual Trigger Endpoint for Trending Content**: Successfully implemented admin-only POST endpoint to manually trigger trending content calculations
+- **COMPLETED: URL Fields in Trending and New Content Endpoints**: Successfully added url fields to all trending and new content API responses for frontend navigation
+- **COMPLETED: Park URL Optimization**: Successfully optimized park URL usage to use `ride.park.url` instead of redundant `ride.park_url` field for better data consistency
 - **Features Implemented**: 
   - **RideModel API Directory Structure**: Moved files from `backend/apps/api/v1/ride_models/` to `backend/apps/api/v1/rides/manufacturers/` to match nested URL organization
   - **RideModel API Reorganization**: Nested endpoints under rides/manufacturers, manufacturer-scoped slugs, integrated with ride creation/editing, removed top-level endpoint
@@ -14,6 +19,8 @@ c# Active Context
   - **Stats API**: Entity counts, photo counts, category breakdowns, status breakdowns, review counts, automatic cache invalidation, caching, public access, OpenAPI documentation
   - **Maps API**: Location retrieval, bounds filtering, text search, location details, clustering support, caching, comprehensive serializers, OpenAPI documentation
   - **Comprehensive Rides Filtering**: 25+ filter parameters, enhanced filter options endpoint, roller coaster specific filters, range filters, boolean filters, multiple value support, comprehensive ordering options
+  - **Celery Integration**: Asynchronous trending content calculation, Redis broker configuration, real database-driven responses replacing mock data
+  - **Manual Trigger Endpoint**: Admin-only POST /api/v1/trending/calculate/ endpoint with task ID responses and proper error handling
 
 ## Recent Changes
 **RideModel API Directory Structure Reorganization - COMPLETED:**
@@ -97,6 +104,33 @@ c# Active Context
 - **Error Handling**: Graceful handling of invalid filter values with try/catch blocks
 - **Multiple Value Support**: Categories and statuses support multiple values via getlist()
 
+**Celery Integration for Trending Content - COMPLETED:**
+- **Implemented**: Complete Celery integration for asynchronous trending content calculations
+- **Files Created/Modified**:
+  - `backend/config/celery.py` - Celery configuration with Redis broker and result backend
+  - `backend/thrillwiki/celery.py` - Celery app initialization and autodiscovery
+  - `backend/apps/core/tasks/__init__.py` - Tasks package initialization
+  - `backend/apps/core/tasks/trending.py` - Celery tasks for trending and new content calculation
+  - `backend/apps/core/services/trending_service.py` - Updated to use Celery tasks and return proper field structure
+  - `backend/apps/api/v1/views/trending.py` - Removed mock data, integrated with Celery-powered service
+- **Database Migrations**: Applied Celery database tables successfully
+- **Field Structure Updates**: Updated "newly_opened" response to include "park" and "date_opened" fields instead of "location"
+- **Mock Data Removal**: Completely removed all mock data from trending endpoints, now using real database queries
+- **Redis Integration**: Configured Redis as Celery broker and result backend for task processing
+- **Task Processing**: Asynchronous calculation of trending content with proper caching and performance optimization
+
+**Manual Trigger Endpoint for Trending Content - COMPLETED:**
+- **Implemented**: Admin-only POST endpoint to manually trigger trending content calculations
+- **Files Modified**:
+  - `backend/apps/api/v1/views/trending.py` - Added TriggerTrendingCalculationAPIView with admin permissions
+  - `backend/apps/api/v1/urls.py` - Added URL routing for manual trigger endpoint
+  - `backend/apps/api/v1/views/__init__.py` - Added new view to exports
+  - `docs/frontend.md` - Updated with comprehensive endpoint documentation
+- **Endpoint**: POST `/api/v1/trending/calculate/` - Triggers both trending and new content calculation tasks
+- **Permissions**: Admin-only access (IsAdminUser permission class)
+- **Response**: Returns task IDs and estimated completion times for both triggered tasks
+- **Error Handling**: Proper error responses for failed task triggers and unauthorized access
+
 **Technical Implementation:**
 - **Stats Endpoint**: GET `/api/v1/stats/` - Returns comprehensive platform statistics
 - **Maps Endpoints**: 
@@ -144,6 +178,17 @@ c# Active Context
 - `backend/apps/api/v1/serializers/maps.py` - Comprehensive map serializers for all response types
 - `backend/apps/api/v1/maps/urls.py` - Map URL routing configuration
 
+### Celery Integration Files
+- `backend/config/celery.py` - Main Celery configuration with Redis broker
+- `backend/thrillwiki/celery.py` - Celery app initialization and task autodiscovery
+- `backend/apps/core/tasks/__init__.py` - Tasks package initialization
+- `backend/apps/core/tasks/trending.py` - Trending content calculation tasks
+- `backend/apps/core/services/trending_service.py` - Updated service using Celery tasks
+- `backend/apps/api/v1/views/trending.py` - Updated views without mock data, includes manual trigger endpoint
+- `backend/apps/api/v1/urls.py` - Updated with manual trigger endpoint routing
+- `backend/apps/api/v1/views/__init__.py` - Updated exports for new trigger view
+- `docs/frontend.md` - Updated with manual trigger endpoint documentation
+
 ## Permanent Rules Established
 **CREATED**: `cline_docs/permanent_rules.md` - Permanent development rules that must be followed in all future work.
 
@@ -228,6 +273,15 @@ c# Active Context
 - **Performance**: Cached responses for optimal performance (5-minute cache)
 - **Access**: Public endpoints, no authentication required (except photo uploads)
 - **Documentation**: Full OpenAPI documentation available
+- **Celery Integration**: ✅ Successfully implemented and tested
+  - **Configuration**: Redis broker configured and working
+  - **Tasks**: Trending content calculation tasks implemented
+  - **Database**: Celery tables created via migrations
+  - **API Response**: "newly_opened" now returns correct structure with "park" and "date_opened" fields
+  - **Mock Data**: Completely removed from all trending endpoints
+  - **Real Data**: All responses now use actual database queries
+  - **Manual Trigger**: POST `/api/v1/trending/calculate/` endpoint implemented with admin permissions
+  - **Task Management**: Returns task IDs for monitoring asynchronous calculations
 
 ## Sample Response
 ```json