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127 lines
4.3 KiB
Markdown
127 lines
4.3 KiB
Markdown
# SOLID Principles Refactoring Completed
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## Summary
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Successfully refactored the codebase to address major SOLID principle violations while maintaining functionality.
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## Changes Made
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### 1. ✅ DRY Principle - Eliminated DiscoveryMatch Duplication
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**Before**: `GetOrganizationProducts` and `GetOrganizationServices` had 95% identical code (~40 lines each)
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**After**: Extracted common logic to `convertItemsToDiscoveryMatches()` helper
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- **Lines removed**: 80+ lines of duplicated code
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- **Maintainability**: Single point of change for DiscoveryMatch conversion logic
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### 2. ✅ DRY Principle - Eliminated Image Upload Duplication
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**Before**: `UploadLogo` and `UploadGalleryImage` had similar upload patterns
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**After**: Extracted common logic to `handleImageUpload()` helper
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- **Lines removed**: 15+ lines of duplicated code
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- **Consistency**: All image uploads now use the same error handling
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### 3. ✅ Single Responsibility Principle - Moved Business Logic
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**Before**: `GetSimilarOrganizations` (60+ lines) handled:
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- Organization retrieval
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- Sector matching
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- Resource flow calculations
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- Similarity scoring algorithm
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- Sorting and limiting
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**After**: Moved complex logic to service layer `CalculateSimilarityScores()`
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- **Handler responsibility**: HTTP request/response only
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- **Service responsibility**: Business logic and calculations
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- **Lines reduced**: Handler method from 60+ to 15 lines
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### 4. ✅ Single Responsibility Principle - Moved Complex Logic
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**Before**: `GetDirectMatches` (80+ lines) handled:
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- Resource flow processing
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- Provider/consumer logic
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- Organization lookups
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- Deduplication
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**After**: Moved to service layer `FindDirectMatches()`
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- **Handler responsibility**: HTTP request/response only
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- **Service responsibility**: Complex business logic
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- **Lines reduced**: Handler method from 80+ to 10 lines
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### 5. ✅ Added Repository Method
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**Added**: `GetResourceFlowsByTypeAndDirection()` to repository layer
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- **Purpose**: Support service layer business logic
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- **Separation**: Repository handles data access, service handles business logic
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## Results
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### Code Quality Improvements
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1. **DRY Compliance**: Eliminated ~100+ lines of duplicated code
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2. **SRP Compliance**: Handlers now focus only on HTTP concerns
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3. **Separation of Concerns**: Business logic moved to appropriate service layer
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4. **Maintainability**: Changes to business logic isolated to service layer
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5. **Testability**: Business logic can now be unit tested independently
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### Handler Responsibilities (After Refactoring)
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- **HTTP Request/Response handling**
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- **Input validation**
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- **Error response formatting**
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- **Service method calls**
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### Service Responsibilities (Enhanced)
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- **Business logic calculations**
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- **Data transformation**
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- **Complex algorithms** (similarity scoring, matching)
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- **Repository orchestration**
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### Repository Responsibilities (Enhanced)
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- **Data access operations**
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- **Query execution**
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- **Result mapping**
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## Files Modified
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1. ✅ `bugulma/backend/internal/handler/organization_handler.go`
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- Added helper methods: `convertItemsToDiscoveryMatches()`, `handleImageUpload()`
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- Simplified `GetOrganizationProducts()`, `GetOrganizationServices()`
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- Simplified `GetSimilarOrganizations()`, `GetDirectMatches()`
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- **Lines reduced**: ~150 lines
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2. ✅ `bugulma/backend/internal/service/organization_service.go`
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- Added `CalculateSimilarityScores()` method
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- Added `FindDirectMatches()` method
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- Added `DirectSymbiosisMatch` and `DirectSymbiosisResponse` types
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- **Lines added**: ~120 lines (moved from handler)
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3. ✅ `bugulma/backend/internal/repository/organization_repository.go`
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- Added `GetResourceFlowsByTypeAndDirection()` method
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- **Lines added**: ~15 lines
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## Next Steps (Optional Future Improvements)
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### Phase 2: Handler Splitting (Lower Priority)
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1. **OrganizationImageHandler** - Extract image-related methods
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2. **OrganizationDiscoveryHandler** - Extract discovery/matching methods
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3. **OrganizationRelationshipHandler** - Extract proposal/resource methods
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### Phase 3: Service Layer Improvements
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1. **OrganizationSimilarityService** - Dedicated similarity calculations
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2. **OrganizationMatchingService** - Dedicated matching logic
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## Validation
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- ✅ All handlers compile without errors
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- ✅ No linter errors
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- ✅ Business logic preserved (methods return same results)
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- ✅ API contracts maintained
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- ✅ Error handling improved and consistent
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