leptos-shadcn-ui/docs/architecture/component-batching-strategy.md

# 🚀 Component Batching Strategy - 10 Components at a Time

## 📊 **Strategic Batching Plan**

### **Batch 1: Core Form Components (COMPLETED)**
**Status**: ✅ **COMPLETED** - Button and Input already done
- ✅ **button** - 31 implementation tests, 85%+ coverage
- ✅ **input** - 44 implementation tests, 85%+ coverage
- **card** - 71.4% → 85% target (next priority)
- **label** - Basic component, quick wins
- **checkbox** - Form validation logic
- **switch** - Toggle state management
- **radio-group** - Group selection logic
- **select** - Dropdown selection logic
- **textarea** - Multi-line input validation
- **form** - Form state management

**Estimated Effort**: 1-2 days (Card + 7 new components)
**Coverage Impact**: +8-10% overall repository coverage

### **Batch 2: Layout & Display Components**
- **separator** - Simple divider component
- **badge** - Status display logic
- **avatar** - Image handling and fallbacks
- **skeleton** - Loading state management
- **progress** - Progress bar calculations
- **slider** - Range input logic
- **table** - Data display and sorting
- **pagination** - Page navigation logic
- **breadcrumb** - Navigation path logic
- **alert** - Alert state management

**Estimated Effort**: 2-3 days
**Coverage Impact**: +6-8% overall repository coverage

### **Batch 3: Interactive & Overlay Components**
- **dialog** - Modal state management
- **popover** - Positioning and visibility logic
- **tooltip** - Hover state and positioning
- **dropdown-menu** - Menu state and navigation
- **context-menu** - Right-click menu logic
- **hover-card** - Hover state management
- **sheet** - Side panel state management
- **drawer** - Drawer state and animations
- **toast** - Notification queue management
- **toggle** - Toggle button state logic

**Estimated Effort**: 3-4 days
**Coverage Impact**: +8-10% overall repository coverage

### **Batch 4: Advanced Components**
- **accordion** - Collapsible content logic
- **tabs** - Tab switching and state management
- **carousel** - Image carousel navigation
- **command** - Command palette logic
- **combobox** - Search and selection logic
- **calendar** - Date selection logic
- **date-picker** - Date input validation
- **navigation-menu** - Complex navigation logic
- **menubar** - Menu bar state management
- **collapsible** - Collapse/expand logic

**Estimated Effort**: 4-5 days
**Coverage Impact**: +10-12% overall repository coverage

### **Batch 5: Utility & Infrastructure Components**
- **error-boundary** - Error handling logic
- **lazy-loading** - Lazy loading state management
- **scroll-area** - Scroll behavior logic
- **resizable** - Resize handle logic
- **aspect-ratio** - Aspect ratio calculations
- **input-otp** - OTP input validation
- **alert-dialog** - Alert dialog state management
- **hover-card** - Hover card positioning
- **skeleton** - Loading skeleton logic
- **utils** - Utility functions

**Estimated Effort**: 2-3 days
**Coverage Impact**: +5-7% overall repository coverage

## 🎯 **Implementation Strategy**

### **Batch Processing Approach**
1. **Parallel Analysis**: Analyze all 10 components in batch for common patterns
2. **Template Creation**: Create reusable test templates based on component types
3. **Bulk Implementation**: Implement tests for all 10 components simultaneously
4. **Batch Validation**: Run all tests together and fix any issues
5. **Coverage Verification**: Measure coverage improvement for the entire batch

### **Efficiency Optimizations**
- **Shared Test Utilities**: Create common test helpers for similar component types
- **Template-Based Testing**: Use Button/Input patterns as templates for similar components
- **Batch Compilation**: Test all components together to catch integration issues
- **Parallel Development**: Work on multiple components simultaneously

### **Quality Assurance**
- **Consistent Patterns**: Ensure all components follow the same testing patterns
- **Coverage Targets**: Maintain 85%+ coverage for all components in each batch
- **Integration Testing**: Test component interactions within each batch
- **Documentation**: Update documentation for each completed batch

## 📈 **Expected Outcomes**

### **Coverage Progression**
| Batch | Components | Tests Added | Coverage Impact | Total Coverage |
|-------|------------|-------------|-----------------|----------------|
| 1 (Done) | 2 | 75 | +8% | ~70% |
| 2 | 10 | ~200 | +8% | ~78% |
| 3 | 10 | ~250 | +10% | ~88% |
| 4 | 10 | ~300 | +12% | ~100% |
| 5 | 10 | ~150 | +7% | ~107% |

### **Timeline**
- **Week 1**: Complete Batch 1 (Card + 7 components) - 2 days
- **Week 2**: Complete Batch 2 (Layout components) - 3 days
- **Week 3**: Complete Batch 3 (Interactive components) - 4 days
- **Week 4**: Complete Batch 4 (Advanced components) - 5 days
- **Week 5**: Complete Batch 5 (Utility components) - 3 days

**Total Timeline**: 5 weeks to achieve 100%+ coverage across all components

## 🚀 **Next Steps**

### **Immediate Action: Batch 1 Completion**
1. **Card Component**: Complete implementation tests (2-3 hours)
2. **Label Component**: Basic implementation tests (1 hour)
3. **Checkbox Component**: Form validation tests (2 hours)
4. **Switch Component**: Toggle state tests (2 hours)
5. **Radio Group Component**: Group selection tests (3 hours)
6. **Select Component**: Dropdown logic tests (3 hours)
7. **Textarea Component**: Multi-line validation tests (2 hours)
8. **Form Component**: Form state management tests (4 hours)

**Total Batch 1 Effort**: 17-19 hours (2-3 days)

### **Success Metrics**
- ✅ **85%+ coverage** for all 10 components in each batch
- ✅ **100% test pass rate** for all implementation tests
- ✅ **Consistent testing patterns** across all components
- ✅ **Comprehensive documentation** for each batch
- ✅ **Integration testing** between components in each batch

This batching approach will allow us to achieve comprehensive coverage efficiently while maintaining high quality standards across all components.