# Tasks Document

## Phase 1: Core Domain Layer

- [ ] 1.1 Create core interfaces and model in src/types/feature.ts, src/models/FeatureModel.ts
  - File: src/types/feature.ts, src/models/FeatureModel.ts
  - Define TypeScript interfaces and implement model with validation/CRUD
  - Purpose: Establish type-safe data layer
  - _Leverage: src/types/base.ts, src/models/BaseModel.ts, src/utils/validation.ts_
  - _Requirements: 1.1, 2.1, 2.2_
  - _TestFocus: Interface contract validation, CRUD success/failure, validation boundaries, relationship integrity_
  - _Prompt: Role: TypeScript Developer specializing in type systems and data modeling | Task: Create comprehensive TypeScript interfaces and implement model with validation and CRUD operations following requirements 1.1, 2.1, 2.2, extending existing base interfaces and model from src/types/base.ts and src/models/BaseModel.ts | Restrictions: Do not modify existing base interfaces, maintain backward compatibility, follow project naming conventions | Success: All interfaces compile without errors, model extends BaseModel correctly, validation methods implemented, full type coverage for feature requirements_

- [ ] 1.2 Create service interface and implementation in src/services/IFeatureService.ts, src/services/FeatureService.ts
  - File: src/services/IFeatureService.ts, src/services/FeatureService.ts
  - Define service contract and implement concrete service using FeatureModel
  - Add error handling with existing error utilities
  - Purpose: Provide business logic layer for feature operations
  - _DependsOn: 1.1_
  - _Leverage: src/services/IBaseService.ts, src/services/BaseService.ts, src/utils/errorHandler.ts, src/models/FeatureModel.ts_
  - _Requirements: 3.1, 3.2_
  - _TestFocus: Service contract compliance, error propagation, business logic edge cases, dependency injection_
  - _Prompt: Role: Backend Developer with expertise in service layer architecture | Task: Design service interface and implement concrete FeatureService following requirements 3.1 and 3.2, using FeatureModel and extending BaseService patterns with proper error handling | Restrictions: Must implement interface contract exactly, do not bypass model validation, maintain separation of concerns | Success: Interface is well-defined, service implements all methods correctly, robust error handling, business logic is testable_

- [ ] 1.3 Register service in dependency injection container
  - File: src/utils/di.ts
  - Register FeatureService in DI container with proper lifetime configuration
  - Purpose: Enable service injection throughout application
  - _DependsOn: 1.1, 1.2_
  - _Leverage: existing DI configuration in src/utils/di.ts_
  - _Requirements: 3.1_
  - _TestFocus: Service resolution, dependency chain, lifetime management_
  - _Prompt: Role: Backend Developer with expertise in dependency injection | Task: Register FeatureService in DI container following requirement 3.1, configuring appropriate lifetime and dependencies using existing patterns | Restrictions: Must follow existing DI patterns, do not create circular dependencies | Success: FeatureService is properly registered and resolvable, dependencies correctly configured_

- [ ] 1.4 Review and commit Phase 1
  - _PhaseReview: true_
  - _Prompt: Role: Code reviewer | Task: Review all Phase 1 changes for code quality, consistency, and correctness. Run full test suite and verify all tests pass. Stage and commit with a summary of Phase 1 deliverables. | Success: All tests pass, code review complete, changes committed_

## Phase 2: API Layer

- [ ] 2.1 Create API routing and middleware configuration
  - File: src/api/featureRoutes.ts, src/middleware/featureMiddleware.ts
  - Set up routing with authentication and error handling middleware
  - Purpose: Establish API infrastructure for feature
  - _Leverage: src/api/baseApi.ts, src/middleware/auth.ts, src/middleware/errorHandler.ts_
  - _Requirements: 4.1_
  - _TestFocus: Route registration, middleware chain order, auth enforcement, error response format_
  - _Prompt: Role: Backend API developer specializing in Express.js | Task: Configure API routes and middleware following requirement 4.1, integrating authentication and error handling from existing middleware | Restrictions: Must maintain middleware order, do not bypass security middleware | Success: Routes properly configured with correct middleware chain, authentication works correctly_

- [ ] 2.2 Implement CRUD endpoints with request validation
  - File: src/controllers/FeatureController.ts
  - Create API endpoints with input validation
  - Purpose: Expose feature operations via REST API
  - _Leverage: src/controllers/BaseController.ts, src/utils/validation.ts_
  - _Requirements: 4.2, 4.3_
  - _TestFocus: CRUD endpoint responses, input validation rejection, HTTP status codes, error payloads_
  - _Prompt: Role: Full-stack Developer with expertise in API development | Task: Implement CRUD endpoints following requirements 4.2 and 4.3, extending BaseController patterns with request validation | Restrictions: Must validate all inputs, follow existing controller patterns, ensure proper HTTP status codes | Success: All CRUD operations work correctly, request validation prevents invalid data_

- [ ] 2.3 Review and commit Phase 2
  - _PhaseReview: true_
  - _Prompt: Role: Code reviewer | Task: Review all Phase 2 changes for API design quality, security, and correctness. Run full test suite. Stage and commit with a summary of Phase 2 deliverables. | Success: All tests pass, API endpoints reviewed, changes committed_

## Phase 3: Frontend Components

- [ ] 3.1 Create base UI components
  - File: src/components/feature/FeatureList.tsx, src/components/feature/FeatureForm.tsx
  - Implement reusable components with styling and theming
  - Purpose: Build UI building blocks for feature
  - _Leverage: src/components/BaseComponent.tsx, src/styles/theme.ts_
  - _Requirements: 5.1_
  - _TestFocus: Component rendering, prop handling, accessibility, theme integration_
  - _Prompt: Role: Frontend Developer specializing in React | Task: Create reusable UI components following requirement 5.1, extending BaseComponent patterns and using existing theme system | Restrictions: Must use existing theme variables, follow component patterns, ensure accessibility | Success: Components are reusable, properly themed, accessible and responsive_

- [ ] 3.2 Implement feature-specific components with state and API integration
  - File: src/components/feature/FeaturePage.tsx, src/hooks/useFeature.ts
  - Create feature page with state management connected to API
  - Purpose: Complete frontend user experience
  - _Leverage: src/hooks/useApi.ts, src/components/BaseComponent.tsx_
  - _Requirements: 5.2, 5.3_
  - _TestFocus: State transitions, API integration, loading/error states, user interactions_
  - _Prompt: Role: React Developer with expertise in state management | Task: Implement feature page and custom hook following requirements 5.2 and 5.3, using API hooks and extending BaseComponent patterns | Restrictions: Must use existing state management patterns, handle loading and error states | Success: Components fully functional with proper state, API integration works smoothly_

- [ ] 3.3 Review and commit Phase 3
  - _PhaseReview: true_
  - _Prompt: Role: Code reviewer | Task: Review all Phase 3 changes for component quality, accessibility, and UX. Run full test suite. Stage and commit with a summary of Phase 3 deliverables. | Success: All tests pass, UI reviewed, changes committed_

## Phase 4: Integration

- [ ] 4.1 End-to-end integration and verification
  - File: tests/e2e/feature.e2e.ts
  - Write E2E tests covering critical user journeys across all layers
  - Purpose: Verify full-stack integration works correctly
  - _Leverage: tests/helpers/testUtils.ts, tests/fixtures/data.ts_
  - _Requirements: All_
  - _TestFocus: User journey flows, cross-layer data integrity, error recovery paths_
  - _Prompt: Role: QA Engineer with expertise in E2E testing | Task: Implement end-to-end tests covering all critical user journeys across all layers | Restrictions: Must test real user workflows, ensure tests are maintainable | Success: E2E tests cover critical journeys, tests run reliably_

- [ ] 4.2 Final review and commit Phase 4
  - _PhaseReview: true_
  - _Prompt: Role: Code reviewer | Task: Final review of all integration work. Run full test suite including E2E. Stage and commit with a summary of all deliverables. Clean up any remaining issues. | Success: All tests pass, full integration verified, final commit made_
