# Feature-Based Architecture Development Checklist

## Domain Analysis & Planning

- [ ] Business domain clearly identified and defined
- [ ] Bounded context boundaries established
- [ ] Domain entities and relationships mapped
- [ ] Feature independence validated (minimal cross-feature dependencies)
- [ ] Ubiquitous language defined for the domain
- [ ] Business requirements thoroughly documented

## Project Structure

- [ ] Feature organized in `(features)/({feature-name})/` route group
- [ ] API layer structured in `api/{entity-name}/` directory
- [ ] Components organized in `components/` directory within feature
- [ ] Custom hooks placed in `hooks/` directory within feature
- [ ] TypeScript types defined in `types/` directory within feature
- [ ] Feature pages organized in appropriate subdirectories

## Schema-First Development

- [ ] Zod schema defined for entity validation
- [ ] TypeScript interfaces derived from Zod schemas
- [ ] Create, Update, and Search schemas properly defined
- [ ] Database model interface created (database-agnostic)
- [ ] API response types properly typed
- [ ] Schema validation covers all business rules

## BaseController Implementation

- [ ] Entity controller extends BaseController abstract class
- [ ] Database-agnostic design maintained
- [ ] `buildSearchFilter` method implemented for entity-specific search
- [ ] CRUD operations properly inherited and customized if needed
- [ ] Error handling follows established patterns
- [ ] Controller uses Zod schema for validation

## API Routes Development

- [ ] Collection routes (`/api/{entity}`) implemented
- [ ] Individual entity routes (`/api/{entity}/[id]`) implemented
- [ ] HTTP methods properly implemented (GET, POST, PUT, DELETE)
- [ ] Error handling with proper HTTP status codes
- [ ] Request/response validation using schemas
- [ ] Database connection properly managed

## Custom Hooks Implementation

- [ ] Data fetching hooks follow naming convention (`use{Entities}`)
- [ ] Mutation hooks follow naming convention (`use{Entity}Mutations`)
- [ ] Single entity hooks follow naming convention (`use{Entity}`)
- [ ] Hooks properly handle loading states
- [ ] Error states handled appropriately
- [ ] Pagination implemented for list operations
- [ ] Search functionality integrated

## React Components

- [ ] Components follow PascalCase naming convention
- [ ] Form components implemented (`{Entity}Form`)
- [ ] List components implemented (`{Entity}List`)
- [ ] Card/detail components implemented (`{Entity}Card`)
- [ ] Search components implemented (`{Entity}Search`)
- [ ] Components are properly typed with TypeScript
- [ ] Tailwind CSS used for styling
- [ ] Components follow accessibility guidelines

## Next.js Pages

- [ ] Feature index page implemented (`page.tsx`)
- [ ] Entity detail pages implemented (`[id]/page.tsx`)
- [ ] Create new entity page implemented (`new/page.tsx`)
- [ ] Edit entity page implemented (`[id]/edit/page.tsx`)
- [ ] Server Components used by default
- [ ] Client Components only used when necessary
- [ ] Proper layouts and navigation implemented

## Type Safety

- [ ] Strict TypeScript configuration enforced
- [ ] No `any` types used
- [ ] End-to-end type safety from database to UI
- [ ] Proper type imports and exports
- [ ] Interface segregation properly implemented
- [ ] Generic types used appropriately

## Code Quality

- [ ] ESLint rules passing without warnings
- [ ] Prettier formatting applied consistently
- [ ] No console statements in production code
- [ ] Import statements properly organized
- [ ] `@/` alias used for internal imports
- [ ] Code follows established conventions

## Testing

- [ ] Unit tests for controller logic
- [ ] API route integration tests
- [ ] React component tests
- [ ] Custom hooks tests
- [ ] Edge cases covered in tests
- [ ] Test data and mocks properly implemented

## Database Integration

- [ ] Database connection abstracted properly
- [ ] ORM/ODM integration follows patterns
- [ ] Migration strategy considered
- [ ] Database queries optimized
- [ ] Indexes planned for search operations
- [ ] Data relationships properly modeled

## Performance Considerations

- [ ] Server Components used for data fetching
- [ ] Client Components minimized
- [ ] Database queries optimized
- [ ] Pagination implemented for large datasets
- [ ] Caching strategy considered
- [ ] Bundle size impact assessed

## Security

- [ ] Input validation on all API endpoints
- [ ] Authentication/authorization considered
- [ ] SQL injection prevention (if using SQL database)
- [ ] XSS prevention in components
- [ ] CSRF protection implemented
- [ ] Error messages don't leak sensitive information

## Documentation

- [ ] Feature purpose and scope documented
- [ ] API endpoints documented
- [ ] Component usage examples provided
- [ ] Business logic explained
- [ ] Integration points documented
- [ ] Database schema documented

## Integration & Dependencies

- [ ] Shared infrastructure properly utilized
- [ ] Cross-feature dependencies minimized
- [ ] Integration points well-defined
- [ ] Shared types and utilities used appropriately
- [ ] Feature can be developed independently
- [ ] Feature can be tested in isolation

## Deployment Readiness

- [ ] Environment variables properly configured
- [ ] Production build successful
- [ ] Database migrations ready (if needed)
- [ ] Performance benchmarks acceptable
- [ ] Error monitoring configured
- [ ] Health checks implemented

## Review & Quality Assurance

- [ ] Code review completed
- [ ] Architecture review completed
- [ ] Business logic verified
- [ ] User experience tested
- [ ] Accessibility tested
- [ ] Cross-browser compatibility verified