thrillwiki_django_no_react/memory-bank/features/version-control/implementation-plan.md

Version Control System Enhancement Plan

Current Implementation

The project currently uses django-simple-history with custom extensions:

• HistoricalModel base class for history tracking
• HistoricalChangeMixin for change tracking and diff computation
• HistoricalSlug for slug history management

Enhanced Version Control Standards

1. Core VCS Features

Branching System

class VersionBranch:
    name = models.CharField(max_length=255)
    parent = models.ForeignKey('self', null=True)
    created_at = models.DateTimeField(auto_now_add=True)
    metadata = models.JSONField()

• Support for feature branches
• Parallel version development
• Branch merging capabilities
• Conflict resolution system

Tagging System

class VersionTag:
    name = models.CharField(max_length=255)
    version = models.ForeignKey(HistoricalRecord)
    metadata = models.JSONField()

• Named versions (releases, milestones)
• Semantic versioning support
• Tag annotations and metadata

Change Sets

class ChangeSet:
    branch = models.ForeignKey(VersionBranch)
    changes = models.JSONField()  # Structured changes
    metadata = models.JSONField()
    dependencies = models.JSONField()

• Atomic change grouping
• Dependency tracking
• Rollback capabilities

2. Full Stack Integration

Frontend Integration

Version Control UI

interface VersionControlUI {
  // Core Components
  VersionHistory: Component;
  BranchView: Component;
  DiffViewer: Component;
  MergeResolver: Component;
  
  // State Management
  versionStore: {
    currentVersion: Version;
    branches: Branch[];
    history: HistoryEntry[];
    pendingChanges: Change[];
  };
  
  // Actions
  actions: {
    createBranch(): Promise<void>;
    mergeBranch(): Promise<void>;
    revertChanges(): Promise<void>;
    resolveConflicts(): Promise<void>;
  };
}

Real-time Collaboration

interface CollaborationSystem {
  // WebSocket integration
  socket: WebSocket;
  
  // Change tracking
  pendingChanges: Map<string, Change>;
  
  // Conflict resolution
  conflictResolver: ConflictResolver;
}

HTMX Integration

<!-- Version Control Components -->
<div class="version-control-panel"
     hx-get="/api/vcs/status"
     hx-trigger="load, every 30s">
  
  <!-- Branch Selector -->
  <div class="branch-selector"
       hx-get="/api/vcs/branches"
       hx-target="#branch-list">
  </div>
  
  <!-- Change History -->
  <div class="history-view"
       hx-get="/api/vcs/history"
       hx-trigger="load, branch-change from:body">
  </div>
  
  <!-- Merge Interface -->
  <div class="merge-panel"
       hx-post="/api/vcs/merge"
       hx-trigger="merge-requested">
  </div>
</div>

Backend Integration

API Layer

class VersionControlViewSet(viewsets.ModelViewSet):
    @action(detail=True, methods=['post'])
    def create_branch(self, request):
        """Create new version branch"""
        
    @action(detail=True, methods=['post'])
    def merge_branch(self, request):
        """Merge branches with conflict resolution"""
        
    @action(detail=True, methods=['post'])
    def tag_version(self, request):
        """Create version tag"""
        
    @action(detail=True, methods=['get'])
    def changelog(self, request):
        """Get structured change history"""

Change Tracking System

class ChangeTracker:
    """Track changes across the system"""
    def track_change(self, instance, change_type, metadata=None):
        """Record a change in the system"""
        
    def batch_track(self, changes):
        """Track multiple changes atomically"""
        
    def compute_diff(self, version1, version2):
        """Compute detailed difference between versions"""

3. Data Integrity & Validation

Validation System

class VersionValidator:
    """Validate version control operations"""
    def validate_branch_creation(self, branch_data):
        """Validate branch creation request"""
        
    def validate_merge(self, source_branch, target_branch):
        """Validate branch merge possibility"""
        
    def validate_revert(self, version, target_state):
        """Validate revert operation"""

Consistency Checks

class ConsistencyChecker:
    """Ensure data consistency"""
    def check_reference_integrity(self):
        """Verify all version references are valid"""
        
    def verify_branch_hierarchy(self):
        """Verify branch relationships"""
        
    def validate_change_sets(self):
        """Verify change set consistency"""

4. Advanced Features

Merge Strategies

class MergeStrategy:
    """Define how merges are handled"""
    def auto_merge(self, source, target):
        """Attempt automatic merge"""
        
    def resolve_conflicts(self, conflicts):
        """Handle merge conflicts"""
        
    def apply_resolution(self, resolution):
        """Apply conflict resolution"""

Dependency Management

class DependencyTracker:
    """Track version dependencies"""
    def track_dependencies(self, change_set):
        """Record dependencies for changes"""
        
    def verify_dependencies(self, version):
        """Verify all dependencies are met"""
        
    def resolve_dependencies(self, missing_deps):
        """Resolve missing dependencies"""

Implementation Phases

Phase 1: Core VCS Enhancement (Weeks 1-4)

1. Implement branching system
2. Add tagging support
3. Develop change set tracking
4. Create basic frontend interface

Phase 2: Full Stack Integration (Weeks 5-8)

1. Build comprehensive frontend UI
2. Implement real-time collaboration
3. Develop API endpoints
4. Add WebSocket support

Phase 3: Advanced Features (Weeks 9-12)

1. Implement merge strategies
2. Add dependency tracking
3. Enhance conflict resolution
4. Build monitoring system

Phase 4: Testing & Optimization (Weeks 13-16)

1. Comprehensive testing
2. Performance optimization
3. Security hardening
4. Documentation completion

Success Metrics

Technical Metrics

• Branch operation speed (<500ms)
• Merge success rate (>95%)
• Conflict resolution time (<5min avg)
• Version retrieval speed (<200ms)

User Experience Metrics

• UI response time (<300ms)
• Successful merges (>90%)
• User satisfaction score (>4.5/5)
• Feature adoption rate (>80%)

System Health Metrics

• System uptime (>99.9%)
• Data integrity (100%)
• Backup success rate (100%)
• Recovery time (<5min)

Monitoring & Maintenance

System Monitoring

• Real-time performance tracking
• Error rate monitoring
• Resource usage tracking
• User activity monitoring

Maintenance Tasks

• Regular consistency checks
• Automated testing
• Performance optimization
• Security updates

Security Considerations

Access Control

• Role-based permissions
• Audit logging
• Activity monitoring
• Security scanning

Data Protection

• Encryption at rest
• Secure transmission
• Regular backups
• Data retention policies