c# Active Context

## Current Focus
- **COMPLETED: RideModel API Directory Structure Reorganization**: Successfully reorganized API directory structure to match nested URL organization with mandatory nested file structure
- **COMPLETED: RideModel API Reorganization**: Successfully reorganized RideModel endpoints from separate top-level `/api/v1/ride-models/` to nested `/api/v1/rides/manufacturers/<manufacturerSlug>/<ridemodelSlug>/` structure
- **COMPLETED: django-cloudflare-images Integration**: Successfully implemented complete Cloudflare Images integration across rides and parks models with full API support including banner/card image settings
- **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
  - **Cloudflare Images**: Model field updates, API serializer enhancements, image variants, transformations, upload examples, comprehensive documentation
  - **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:**
- **Reorganized**: API directory structure from `backend/apps/api/v1/ride_models/` to `backend/apps/api/v1/rides/manufacturers/`
- **Files Moved**:
  - `backend/apps/api/v1/ride_models/__init__.py` → `backend/apps/api/v1/rides/manufacturers/__init__.py`
  - `backend/apps/api/v1/ride_models/urls.py` → `backend/apps/api/v1/rides/manufacturers/urls.py`
  - `backend/apps/api/v1/ride_models/views.py` → `backend/apps/api/v1/rides/manufacturers/views.py`
- **Import Path Updated**: `backend/apps/api/v1/rides/urls.py` - Updated include path from `apps.api.v1.ride_models.urls` to `apps.api.v1.rides.manufacturers.urls`
- **Directory Structure**: Now properly nested to match URL organization as mandated
- **Testing**: All endpoints verified working correctly with new nested structure

**RideModel API Reorganization - COMPLETED:**
- **Reorganized**: RideModel endpoints from `/api/v1/ride-models/` to `/api/v1/rides/manufacturers/<manufacturerSlug>/<ridemodelSlug>/`
- **Slug System**: Updated to manufacturer-scoped slugs (e.g., `dive-coaster` instead of `bolliger-mabillard-dive-coaster`)
- **Database Migrations**: Applied migrations to fix slug constraints and update existing data
- **Files Modified**:
  - `backend/apps/api/v1/rides/urls.py` - Added nested include for manufacturers.urls
  - `backend/apps/api/v1/urls.py` - Removed top-level ride-models endpoint
  - `backend/apps/rides/models/rides.py` - Updated slug generation and unique constraints
- **Endpoint Structure**: All RideModel functionality now accessible under `/api/v1/rides/manufacturers/<manufacturerSlug>/`
- **Integration**: RideModel selection already integrated in ride creation/editing serializers via `ride_model_id` field
- **Testing**: All endpoints verified working correctly:
  - `/api/v1/rides/manufacturers/<manufacturerSlug>/` - List/create ride models for manufacturer
  - `/api/v1/rides/manufacturers/<manufacturerSlug>/<ridemodelSlug>/` - Detailed ride model view
  - `/api/v1/rides/manufacturers/<manufacturerSlug>/<ridemodelSlug>/photos/` - Ride model photos
  - `/api/v1/rides/search/ride-models/` - Ride model search for ride creation
- **Old Endpoint**: `/api/v1/ride-models/` now returns 404 as expected

**django-cloudflare-images Integration - COMPLETED:**
- **Implemented**: Complete Cloudflare Images integration for rides and parks models
- **Files Created/Modified**:
  - `backend/apps/rides/models/media.py` - Updated RidePhoto.image to CloudflareImagesField
  - `backend/apps/parks/models/media.py` - Updated ParkPhoto.image to CloudflareImagesField
  - `backend/apps/api/v1/rides/serializers.py` - Enhanced with image_url and image_variants fields
  - `backend/apps/api/v1/parks/serializers.py` - Enhanced with image_url and image_variants fields
  - `backend/apps/api/v1/maps/views.py` - Fixed OpenApiParameter examples for schema generation
  - `backend/docs/cloudflare_images_integration.md` - Comprehensive documentation with upload examples and transformations
- **Database Migrations**: Applied successfully without data loss
- **Banner/Card Images**: Added banner_image and card_image fields to Park and Ride models with API endpoints
- **Schema Generation**: Fixed and working properly with OpenAPI documentation

**Enhanced Stats API Endpoint - COMPLETED:**
- **Updated**: `/api/v1/stats/` endpoint for platform statistics
- **Files Created/Modified**:
  - `backend/apps/api/v1/views/stats.py` - Enhanced stats view with new fields
  - `backend/apps/api/v1/serializers/stats.py` - Updated serializer with new fields
  - `backend/apps/api/v1/signals.py` - Django signals for automatic cache invalidation
  - `backend/apps/api/apps.py` - App config to load signals
  - `backend/apps/api/v1/urls.py` - Stats URL routing

**Maps API Implementation - COMPLETED:**
- **Implemented**: Complete maps API with 4 main endpoints
- **Files Created/Modified**:
  - `backend/apps/api/v1/maps/views.py` - All map view implementations
  - `backend/apps/api/v1/serializers/maps.py` - Comprehensive map serializers
  - `backend/apps/api/v1/maps/urls.py` - Map URL routing (existing)

**Comprehensive Rides Filtering System - COMPLETED:**
- **Implemented**: Complete comprehensive filtering system for rides API
- **Files Modified**:
  - `backend/apps/api/v1/rides/views.py` - Enhanced RideListCreateAPIView with 25+ filter parameters and comprehensive FilterOptionsAPIView
- **Filter Categories Implemented**:
  - **Basic Filters**: Text search, park filtering (ID/slug), pagination
  - **Category Filters**: Multiple ride categories (RC, DR, FR, WR, TR, OT) with multiple value support
  - **Status Filters**: Multiple ride statuses with multiple value support
  - **Company Filters**: Manufacturer and designer filtering by ID/slug
  - **Ride Model Filters**: Filter by specific ride models (ID or slug with manufacturer)
  - **Rating Filters**: Min/max average rating filtering (1-10 scale)
  - **Physical Spec Filters**: Height requirements, capacity ranges
  - **Date Filters**: Opening year, date ranges, specific years
  - **Roller Coaster Specific**: Type, track material, launch type, height/speed/inversions
  - **Boolean Filters**: Has inversions toggle
  - **Ordering**: 14 different ordering options including coaster stats
- **Filter Options Endpoint**: Enhanced `/api/v1/rides/filter-options/` with comprehensive metadata
  - Categories, statuses, roller coaster types, track materials, launch types
  - Ordering options with human-readable labels
  - Filter ranges with min/max/step/unit metadata
  - Boolean filter definitions
- **Performance Optimizations**: Optimized querysets with select_related and prefetch_related
- **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**: 
  - GET `/api/v1/maps/locations/` - Get map locations with filtering, bounds, search, clustering
  - GET `/api/v1/maps/locations/<type>/<id>/` - Get detailed location information
  - GET `/api/v1/maps/search/` - Search locations by text query with pagination
  - GET `/api/v1/maps/bounds/` - Get locations within geographic bounds
  - GET `/api/v1/maps/stats/` - Get map service statistics
  - DELETE/POST `/api/v1/maps/cache/` - Cache management endpoints
- **Authentication**: Public endpoints (AllowAny permission)
- **Caching**: 5-minute cache with automatic invalidation for maps, immediate cache for stats
- **Documentation**: Full OpenAPI schema with drf-spectacular for all endpoints
- **Response Format**: JSON with comprehensive location data, statistics, and metadata
- **Features**: Geographic bounds filtering, text search, pagination, clustering support, detailed location info

## Active Files

### RideModel API Reorganization Files
- `backend/apps/api/v1/rides/urls.py` - Updated to include nested manufacturers endpoints
- `backend/apps/api/v1/urls.py` - Removed top-level ride-models endpoint
- `backend/apps/api/v1/rides/manufacturers/urls.py` - Comprehensive URL patterns with manufacturer-scoped slugs
- `backend/apps/api/v1/rides/manufacturers/views.py` - Comprehensive view implementations with manufacturer filtering
- `backend/apps/api/v1/serializers/ride_models.py` - Comprehensive serializers (unchanged)
- `backend/apps/api/v1/serializers/rides.py` - Already includes ride_model_id integration
- `backend/apps/rides/models/rides.py` - Updated with manufacturer-scoped slug constraints
- `backend/apps/rides/migrations/0013_fix_ride_model_slugs.py` - Database migration for slug constraints
- `backend/apps/rides/migrations/0014_update_ride_model_slugs_data.py` - Data migration to update existing slugs

### Cloudflare Images Integration Files
- `backend/apps/rides/models/media.py` - RidePhoto model with CloudflareImagesField
- `backend/apps/parks/models/media.py` - ParkPhoto model with CloudflareImagesField
- `backend/apps/api/v1/rides/serializers.py` - Enhanced serializers with image variants
- `backend/apps/api/v1/parks/serializers.py` - Enhanced serializers with image variants
- `backend/apps/api/v1/rides/photo_views.py` - Photo upload endpoints for rides
- `backend/apps/api/v1/parks/views.py` - Photo upload endpoints for parks
- `backend/docs/cloudflare_images_integration.md` - Complete documentation

### Stats API Files
- `backend/apps/api/v1/views/stats.py` - Main statistics view with comprehensive entity counting
- `backend/apps/api/v1/serializers/stats.py` - Response serializer with field documentation
- `backend/apps/api/v1/urls.py` - URL routing including new stats endpoint

### Maps API Files
- `backend/apps/api/v1/maps/views.py` - All map view implementations with full functionality
- `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.

**MANDATORY NESTING ORGANIZATION**: All API directory structures must match URL nesting patterns. No exceptions.

**RIDE TYPES vs RIDE MODELS DISTINCTION (ALL RIDE CATEGORIES)**: 
- **Ride Types**: Operational characteristics/classifications for ALL ride categories (not just roller coasters)
  - **Roller Coasters**: "inverted", "suspended", "wing", "dive", "flying", "spinning", "wild mouse"
  - **Dark Rides**: "trackless", "boat", "omnimover", "simulator", "walk-through"  
  - **Flat Rides**: "spinning", "swinging", "drop tower", "ferris wheel", "carousel"
  - **Water Rides**: "log flume", "rapids", "water coaster", "splash pad"
  - **Transport**: "monorail", "gondola", "train", "people mover"
- **Ride Models**: Specific manufacturer designs/products stored in `RideModel` (e.g., "B&M Dive Coaster", "Vekoma Boomerang", "RMC I-Box")
- **Critical**: These are separate concepts for ALL ride categories, not just roller coasters
- **Current Gap**: System only has roller coaster types in `RollerCoasterStats.roller_coaster_type` - needs extension to all categories
- Individual ride installations reference both: the `RideModel` (what specific design) and the type classification (how it operates)

## Next Steps
1. **RideModel System Enhancements**:
   - Consider adding bulk operations for ride model management
   - Implement ride model comparison features
   - Add ride model recommendation system based on park characteristics
   - Consider adding ride model popularity tracking
   - Ensure ride type classifications are properly separated from ride model catalogs
2. **Cloudflare Images Enhancements**:
   - Consider implementing custom variants for specific use cases
   - Add signed URLs for private images
   - Implement batch upload capabilities
   - Add image analytics integration
3. **Maps API Enhancements**:
   - Implement clustering algorithm for high-density areas
   - Add nearby locations functionality
   - Implement relevance scoring for search results
   - Add cache statistics tracking
   - Add admin permission checks for cache management endpoints
4. **Stats API Enhancements**:
   - Consider adding more granular statistics if needed
   - Monitor cache performance and adjust cache duration if necessary
   - Add unit tests for the stats endpoint
   - Consider adding filtering or query parameters for specific stat categories
5. **Testing**: Add comprehensive unit tests for all endpoints
6. **Performance**: Monitor and optimize database queries for large datasets

## Current Development State
- Django backend with comprehensive stats API
- Stats endpoint fully functional at `/api/v1/stats/`
- Server running on port 8000
- All middleware issues resolved

## Testing Results
- **RideModel API Directory Structure**: ✅ Successfully reorganized to match nested URL organization
  - **Directory Structure**: Files moved from `backend/apps/api/v1/ride_models/` to `backend/apps/api/v1/rides/manufacturers/`
  - **Import Paths**: Updated to use new nested structure
  - **System Check**: ✅ Django system check passes with no issues
  - **URL Routing**: ✅ All URLs properly resolved with new nested structure
- **RideModel API Reorganization**: ✅ Successfully reorganized and tested
  - **New Endpoints**: All RideModel functionality now under `/api/v1/rides/manufacturers/<manufacturerSlug>/`
  - **List Endpoint**: `/api/v1/rides/manufacturers/bolliger-mabillard/` - ✅ Returns 2 models for B&M
  - **Detail Endpoint**: `/api/v1/rides/manufacturers/bolliger-mabillard/dive-coaster/` - ✅ Returns comprehensive model details
  - **Manufacturer Filtering**: `/api/v1/rides/manufacturers/rocky-mountain-construction/` - ✅ Returns 1 model for RMC
  - **Slug System**: ✅ Updated to manufacturer-scoped slugs (e.g., `dive-coaster`, `i-box-track`)
  - **Database**: ✅ All 6 existing models updated with new slug format
  - **Integration**: `/api/v1/rides/search/ride-models/` - ✅ Available for ride creation
  - **Old Endpoint**: `/api/v1/ride-models/` - ✅ Returns 404 as expected
  - **Ride Integration**: RideModel selection available via `ride_model_id` in ride serializers
- **Cloudflare Images Integration**: ✅ Fully implemented and functional
  - **Models**: RidePhoto and ParkPhoto using CloudflareImagesField
  - **API Serializers**: Enhanced with image_url and image_variants fields
  - **Upload Endpoints**: POST `/api/v1/rides/{id}/photos/` and POST `/api/v1/parks/{id}/photos/`
  - **Schema Generation**: Fixed and working properly
  - **Database Migrations**: Applied successfully
  - **Documentation**: Comprehensive with upload examples and transformations
- **Stats Endpoint**: `/api/v1/stats/` - ✅ Working correctly
- **Maps Endpoints**: All implemented and ready for testing
  - `/api/v1/maps/locations/` - ✅ Implemented with filtering, bounds, search
  - `/api/v1/maps/locations/<type>/<id>/` - ✅ Implemented with detailed location info
  - `/api/v1/maps/search/` - ✅ Implemented with text search and pagination
  - `/api/v1/maps/bounds/` - ✅ Implemented with geographic bounds filtering
  - `/api/v1/maps/stats/` - ✅ Implemented with location statistics
  - `/api/v1/maps/cache/` - ✅ Implemented with cache management
- **Response**: Returns comprehensive JSON with location data and statistics
- **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
{
    "total_parks": 7,
    "total_rides": 10,
    "total_manufacturers": 6,
    "total_operators": 7,
    "total_designers": 4,
    "total_property_owners": 0,
    "total_roller_coasters": 8,
    "total_photos": 0,
    "total_park_photos": 0,
    "total_ride_photos": 0,
    "total_reviews": 8,
    "total_park_reviews": 4,
    "total_ride_reviews": 4,
    "roller_coasters": 10,
    "operating_parks": 7,
    "operating_rides": 10,
    "last_updated": "just_now"
}
```