thrillwiki_django_no_react/memory-bank/features/version-control/visual-diff-viewer.md

Visual Diff Viewer Implementation Plan

Core Requirements

1. Side-by-side comparison interface
2. Syntax highlighting for code diffs
3. Inline comment anchoring
4. Change navigation controls
5. Performance budget: 200ms render time

Technical Integration

• Frontend
  Extend DiffViewer component (line 62) with:

  interface EnhancedDiffViewer {
    renderStrategy: 'inline' | 'side-by-side';
    syntaxHighlighters: Map<string, Highlighter>;
    commentThreads: CommentThread[];
  }
  

• Backend
  Enhance ChangeTracker.compute_diff() (line 156):

  def compute_enhanced_diff(self, version1, version2):
      """Return structured diff with syntax metadata"""
  

Dependency Matrix

Component	Affected Lines	Modification Type
HistoricalChangeMixin	Current impl. line 6	Extension
CollaborationSystem	line 90	Event handling
VersionControlUI	line 62	Props update

Phase Plan

1. Week 1: Diff algorithm optimization
2. Week 2: UI component development
3. Week 3: Performance testing
4. Week 4: Security review