# Issues and Technical Debt Documentation

## Known Bugs

### 1. Data Integrity Issues

#### Historical Slug Resolution
```python
# Current Implementation
class Park(models.Model):
    @classmethod
    def get_by_slug(cls, slug: str):
        # Issue: Race condition possible between slug check and retrieval
        # TODO: Implement proper locking or transaction handling
        try:
            return cls.objects.get(slug=slug)
        except cls.DoesNotExist:
            return cls.objects.get(historical_slugs__slug=slug)
```

#### Media File Management
```python
# Current Issue
class MediaHandler:
    def process_upload(self, file):
        # Bug: Temporary files not always cleaned up
        # TODO: Implement proper cleanup in finally block
        try:
            process_file(file)
        except Exception:
            log_error()
```

### 2. Performance Issues

#### N+1 Query Patterns
```python
# Inefficient Queries in Views
class ParkDetailView(DetailView):
    def get_context_data(self):
        context = super().get_context_data()
        # Issue: N+1 queries for each ride's reviews
        context['rides'] = [
            {
                'ride': ride,
                'reviews': ride.reviews.all()  # Causes N+1 query
            } 
            for ride in self.object.rides.all()
        ]
```

#### Cache Invalidation
```python
# Inconsistent Cache Updates
class ReviewManager:
    def update_stats(self, obj):
        # Bug: Race condition in cache updates
        # TODO: Implement atomic cache updates
        stats = calculate_stats(obj)
        cache.set(f'{obj}_stats', stats)
```

## Technical Debt

### 1. Code Organization

#### Monolithic Views
```python
# views.py
class ParkView(View):
    def post(self, request, *args, **kwargs):
        # TODO: Break down into smaller, focused views
        # Currently handles too many responsibilities:
        # - Park creation
        # - Media processing
        # - Notification sending
        # - Stats updating
```

#### Duplicate Business Logic
```python
# Multiple implementations of similar functionality
class ParkValidator:
    def validate_status(self):
        # TODO: Consolidate with RideValidator.validate_status
        if self.status not in VALID_STATUSES:
            raise ValidationError()

class RideValidator:
    def validate_status(self):
        if self.status not in VALID_STATUSES:
            raise ValidationError()
```

### 2. Infrastructure

#### Configuration Management
```python
# settings.py
# TODO: Move to environment variables
DATABASE_PASSWORD = 'hardcoded_password'
API_KEY = 'hardcoded_key'

# TODO: Implement proper configuration management
FEATURE_FLAGS = {
    'new_review_system': True,
    'beta_features': False
}
```

#### Deployment Process
```bash
# Manual deployment steps
# TODO: Automate deployment process
ssh server
git pull
pip install -r requirements.txt
python manage.py migrate
supervisorctl restart app
```

### 3. Testing

#### Test Coverage Gaps
```python
# Missing test cases for error conditions
class ParkTests(TestCase):
    def test_create_park(self):
        # Only tests happy path
        park = Park.objects.create(name='Test Park')
        self.assertEqual(park.name, 'Test Park')
        
    # TODO: Add tests for:
    # - Invalid input handling
    # - Concurrent modifications
    # - Edge cases
```

#### Integration Test Debt
```python
# Brittle integration tests
class APITests(TestCase):
    # TODO: Replace with proper test doubles
    def setUp(self):
        # Direct database dependencies
        self.park = Park.objects.create()
        # External service calls
        self.geocoder = RealGeocoder()
```

## Enhancement Opportunities

### 1. Feature Enhancements

#### Advanced Search
```python
# Current basic search implementation
class ParkSearch:
    def search(self, query):
        # TODO: Implement advanced search features:
        # - Full-text search
        # - Faceted search
        # - Geographic search
        return Park.objects.filter(name__icontains=query)
```

#### Review System
```python
# Basic review functionality
class Review(models.Model):
    # TODO: Enhance with:
    # - Rich text support
    # - Media attachments
    # - Review responses
    # - Helpful votes
    rating = models.IntegerField()
    comment = models.TextField()
```

### 2. Technical Improvements

#### API Versioning
```python
# Current API structure
# TODO: Implement proper API versioning
urlpatterns = [
    path('api/parks/', ParkViewSet.as_view()),
    # Need to support:
    # - Multiple versions
    # - Deprecation handling
    # - Documentation
]
```

#### Caching Strategy
```python
# Basic caching
# TODO: Implement:
# - Multi-layer caching
# - Cache warming
# - Intelligent invalidation
@cache_page(60 * 15)
def park_detail(request, slug):
    return render(request, 'park_detail.html')
```

### 3. Performance Optimizations

#### Database Optimization
```python
# Current database usage
# TODO: Implement:
# - Connection pooling
# - Read replicas
# - Query optimization
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'thrillwiki',
    }
}
```

#### Asset Delivery
```python
# Static file handling
# TODO: Implement:
# - CDN integration
# - Image optimization pipeline
# - Responsive images
STATIC_URL = '/static/'
MEDIA_URL = '/media/'
```

## Prioritized Improvements

### High Priority
1. Security Fixes
   - Fix authentication vulnerabilities
   - Implement proper input validation
   - Secure file uploads

2. Critical Performance Issues
   - Resolve N+1 queries
   - Implement connection pooling
   - Optimize cache usage

3. Data Integrity
   - Fix race conditions
   - Implement proper transactions
   - Add data validation

### Medium Priority
1. Technical Debt
   - Refactor monolithic views
   - Consolidate duplicate code
   - Improve test coverage

2. Developer Experience
   - Automate deployment
   - Improve documentation
   - Add development tools

3. Feature Enhancements
   - Implement advanced search
   - Enhance review system
   - Add API versioning

### Low Priority
1. Nice-to-have Features
   - Rich text support
   - Enhanced media handling
   - Social features

2. Infrastructure Improvements
   - CDN integration
   - Monitoring enhancements
   - Analytics improvements

## Implementation Plan

### Phase 1: Critical Fixes
```python
# Timeline: Q1 2024
# Focus:
# - Security vulnerabilities
# - Performance bottlenecks
# - Data integrity issues
```

### Phase 2: Technical Debt
```python
# Timeline: Q2 2024
# Focus:
# - Code refactoring
# - Test coverage
# - Documentation
```

### Phase 3: Enhancements
```python
# Timeline: Q3-Q4 2024
# Focus:
# - Feature improvements
# - Infrastructure upgrades
# - User experience