Add comprehensive evaluation and recommendations for version control system

memory-bank/systemPatterns.md

@@ -21,6 +21,72 @@
    - Implement component-based structure
    - Follow progressive enhancement
 
+## Version Control Patterns
+
+### Change Management
+1. Batch Processing
+   ```python
+   class BatchChangeProcessor:
+       def process_changes(self, changes, chunk_size=100):
+           """Process changes in efficient batches"""
+           with transaction.atomic():
+               for chunk in chunked_queryset(changes, chunk_size):
+                   self._process_chunk(chunk)
+   ```
+
+2. Caching Strategy
+   ```python
+   class VersionCache:
+       def cache_history(self, instance):
+           """Cache version history with TTL"""
+           key = f"version_history_{instance.pk}"
+           if not cache.get(key):
+               history = instance.get_history()
+               cache.set(key, history, timeout=3600)
+   ```
+
+3. Change Tracking
+   ```python
+   class ChangeTracker:
+       def track_changes(self, instance):
+           """Track changes with metadata"""
+           return {
+               'changes': self._diff_changes(instance),
+               'metadata': self._collect_metadata(),
+               'performance': self._get_metrics()
+           }
+   ```
+
+### Performance Optimization
+
+1. Query Patterns
+   ```python
+   class HistoryQuerySet:
+       def optimized_history(self):
+           """Optimized history query"""
+           return self.select_related('branch')\
+                     .prefetch_related('changes')\
+                     .defer('large_fields')
+   ```
+
+2. Async Operations
+   ```python
+   class AsyncVersionControl:
+       async def process_large_changes(self):
+           """Handle large changes asynchronously"""
+           async with atomic():
+               # Async processing logic
+   ```
+
+3. Archiving Strategy
+   ```python
+   class HistoryArchiver:
+       def archive_old_versions(self, age_days=90):
+           """Archive old version history"""
+           threshold = timezone.now() - timedelta(days=age_days)
+           return self._move_to_archive(threshold)
+   ```
+
 ## Design Patterns
 
 ### Data Access
@@ -35,6 +101,8 @@
    - Implement model-level caching
    - Use Redis for session storage
    - Cache invalidation rules
+   - Version history caching
+   - Differential caching for changes
 
 ### Frontend Patterns
 
@@ -62,6 +130,35 @@
    </div>
    ```
 
+## Version Control UI Patterns
+
+1. Change Visualization
+   ```html
+   <!-- Diff View Pattern -->
+   <div class="diff-view"
+        x-data="diffViewer"
+        x-init="loadDiff()">
+     <div class="diff-header"></div>
+     <div class="diff-content"></div>
+   </div>
+   ```
+
+2. Branch Management
+   ```html
+   <!-- Branch Selector Pattern -->
+   <div class="branch-selector"
+        x-data="branchManager"
+        @branch-changed="updateContent()">
+   ```
+
+3. Merge Resolution
+   ```html
+   <!-- Conflict Resolution Pattern -->
+   <div class="conflict-resolver"
+        x-data="conflictResolver"
+        @resolve="handleResolution()">
+   ```
+
 ## Authentication Patterns
 
 ### User Management
@@ -123,14 +220,25 @@
 
 ## Testing Patterns
 
-### Unit Tests
+### Performance Testing
 ```python
-class ModelTests(TestCase):
+class VersionControlPerformanceTests(TestCase):
     def setUp(self):
-        # Test setup
+        self.large_dataset = self.create_test_data()
         
-    def test_specific_functionality(self):
-        # Test implementation
+    def test_batch_processing_performance(self):
+        start_time = time.time()
+        self.processor.process_changes(self.large_dataset)
+        duration = time.time() - start_time
+        self.assertLess(duration, self.acceptable_threshold)
+```
+
+### Scale Testing
+```python
+class ScaleTestCase(TestCase):
+    def test_version_history_scaling(self):
+        with self.assertNumQueries(1):  # Ensure efficient querying
+            self.repository.get_history()
 ```
 
 ### Integration Tests
@@ -162,4 +270,10 @@ class ViewTests(TestCase):
    - Code review
    - Testing verification
    - Documentation update
-   - Deployment planning
+   - Deployment planning
+   
+4. Performance Review
+   - Query analysis
+   - Cache efficiency
+   - Load testing
+   - Scalability verification