346 lines
10 KiB
Markdown
346 lines
10 KiB
Markdown
# Developer Handoff Package - YouTube Summarizer
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## 🚀 Quick Start for Developers
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This document provides everything needed to begin implementing the YouTube Summarizer stories. All stories have been created following the BMad Method with comprehensive technical specifications.
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## 📋 Implementation Priority Order
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### Sprint 1: Foundation (Epic 1 - Stories 1.2-1.4)
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**Duration**: 2 weeks
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**Goal**: Complete core YouTube integration and basic UI
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| Priority | Story | Estimated Hours | Dependencies | Ready |
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|----------|-------|-----------------|--------------|-------|
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| 1 | [Story 1.2: URL Validation](stories/1.2.youtube-url-validation-parsing.md) | 8-12 hours | Story 1.1 ✅ | ✅ YES |
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| 2 | [Story 1.3: Transcript Extraction](stories/1.3.transcript-extraction-service.md) | 16-20 hours | Story 1.2 | ✅ YES |
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| 3 | [Story 1.4: Basic Web Interface](stories/1.4.basic-web-interface.md) | 16-24 hours | Story 1.3 | ✅ YES |
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### Sprint 2: AI Intelligence (Epic 2 - Stories 2.1-2.3)
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**Duration**: 2 weeks
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**Goal**: Implement AI summarization with caching
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| Priority | Story | Estimated Hours | Dependencies | Ready |
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|----------|-------|-----------------|--------------|-------|
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| 4 | [Story 2.1: Single AI Model](stories/2.1.single-ai-model-integration.md) | 12-16 hours | Epic 1 Complete | ✅ YES |
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| 5 | [Story 2.2: Summary Pipeline](stories/2.2.summary-generation-pipeline.md) | 16-20 hours | Story 2.1 | ✅ YES |
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| 6 | [Story 2.3: Caching System](stories/2.3.caching-system-implementation.md) | 12-16 hours | Story 2.2 | ✅ YES |
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### Sprint 3: Advanced Features (Epic 2 - Stories 2.4-2.5)
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**Duration**: 1.5 weeks
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**Goal**: Multi-model support and export capabilities
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| Priority | Story | Estimated Hours | Dependencies | Ready |
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|----------|-------|-----------------|--------------|-------|
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| 7 | [Story 2.4: Multi-Model Support](stories/2.4.multi-model-support.md) | 16-20 hours | Story 2.3 | ✅ YES |
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| 8 | [Story 2.5: Export Functionality](stories/2.5.export-functionality.md) | 12-16 hours | Story 2.4 | ✅ YES |
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---
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## 🛠️ Development Environment Setup
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### Prerequisites Checklist
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- [ ] Docker & Docker Compose installed
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- [ ] Node.js 18+ and npm/yarn
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- [ ] Python 3.11+
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- [ ] Git configured
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- [ ] VS Code or preferred IDE
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### Quick Setup Commands
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```bash
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# Clone repository (if not already done)
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git clone [repository-url]
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cd apps/youtube-summarizer
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# Backend setup
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cd backend
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python -m venv venv
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source venv/bin/activate # On Windows: venv\Scripts\activate
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pip install -r requirements.txt
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cp .env.example .env
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# Edit .env with your API keys
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# Frontend setup
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cd ../frontend
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npm install
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cp .env.example .env.local
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# Start development environment
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docker-compose up -d # Starts Redis, PostgreSQL
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cd backend && uvicorn main:app --reload # Backend on :8000
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cd frontend && npm run dev # Frontend on :3000
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```
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### Required API Keys
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```env
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# .env file (backend)
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OPENAI_API_KEY=sk-... # Required for Story 2.1
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ANTHROPIC_API_KEY=sk-ant-... # Optional for Story 2.4
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DEEPSEEK_API_KEY=... # Optional for Story 2.4
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REDIS_URL=redis://localhost:6379/0
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DATABASE_URL=sqlite:///./youtube_summarizer.db
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```
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---
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## 📚 Story Implementation Guide
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### Each Story Contains
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1. **Story Section**: User story and acceptance criteria
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2. **Tasks/Subtasks**: Detailed breakdown of implementation steps
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3. **Dev Notes**:
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- Architecture context and references
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- Complete code examples and patterns
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- File locations and structure
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- Testing requirements
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- Error handling patterns
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### How to Implement a Story
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1. **Read the Full Story**: Start with the story file in `docs/stories/`
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2. **Review Architecture**: Check references to `docs/architecture.md`
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3. **Follow Task Order**: Complete tasks sequentially as they build on each other
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4. **Use Code Examples**: Copy and adapt the provided code snippets
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5. **Write Tests**: Follow the testing patterns in each story
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6. **Update Story Status**: Mark tasks complete as you finish them
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### Story Status Tracking
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Update the status in each story file as you progress:
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```markdown
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## Status
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Draft → In Progress → Review → Done
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## Tasks / Subtasks
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- [x] **Task 1: Completed task**
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- [ ] **Task 2: Pending task**
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```
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---
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## 🏗️ Architecture Quick Reference
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### Technology Stack
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| Component | Technology | Location |
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|-----------|------------|----------|
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| Backend API | FastAPI + Python 3.11+ | `/backend` |
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| Frontend | React 18 + TypeScript + shadcn/ui | `/frontend` |
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| Database | SQLite → PostgreSQL | `/data` |
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| Cache | Redis | Docker container |
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| Queue | Background Tasks (FastAPI) | In-process |
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### Key Design Patterns
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#### Service Layer Pattern
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```python
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# backend/services/video_service.py
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class VideoService:
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def __init__(self, dependencies...):
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# Initialize with dependency injection
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async def extract_video_id(self, url: str) -> str:
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# Business logic here
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```
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#### Repository Pattern
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```python
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# backend/repositories/summary_repository.py
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class SummaryRepository:
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async def save(self, summary: Summary) -> str:
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# Database operations
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```
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#### API Endpoint Pattern
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```python
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# backend/api/endpoints.py
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@router.post("/process")
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async def process_video(
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request: ProcessRequest,
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service: VideoService = Depends()
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):
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# Endpoint logic
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```
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---
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## 🧪 Testing Requirements
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### Test Coverage Targets
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- Backend: > 80% coverage
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- Frontend: > 70% coverage
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- Integration tests for all API endpoints
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### Running Tests
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```bash
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# Backend tests
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cd backend
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pytest tests/ -v --cov=src --cov-report=html
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# Frontend tests
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cd frontend
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npm test
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npm run test:coverage
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# Integration tests
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docker-compose -f docker-compose.test.yml up
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pytest tests/integration/ -v
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```
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### Test File Locations
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- Backend unit tests: `backend/tests/unit/`
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- Backend integration tests: `backend/tests/integration/`
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- Frontend component tests: `frontend/src/components/**/*.test.tsx`
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- Frontend integration tests: `frontend/src/__tests__/`
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---
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## 📝 Development Checklist
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### Before Starting a Story
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- [ ] Read the complete story file
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- [ ] Review architecture documentation
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- [ ] Ensure all dependencies are installed
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- [ ] Previous story in epic is complete
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- [ ] Create feature branch: `feature/story-X.Y-brief-description`
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### During Implementation
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- [ ] Follow the task list in order
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- [ ] Write tests as you code
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- [ ] Use provided code examples as templates
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- [ ] Handle errors as specified
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- [ ] Update documentation if needed
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### Before Marking Complete
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- [ ] All acceptance criteria met
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- [ ] All tests passing
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- [ ] Code review completed
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- [ ] Documentation updated
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- [ ] Story status updated to "Done"
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---
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## 🚦 Sprint Planning Recommendations
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### Sprint 1 Goals (Weeks 1-2)
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- Complete Epic 1 (Stories 1.2-1.4)
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- Achieve end-to-end YouTube URL → Transcript flow
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- Basic UI operational
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- **Demo**: Show transcript extraction from any YouTube video
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### Sprint 2 Goals (Weeks 3-4)
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- Implement AI summarization (Stories 2.1-2.3)
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- Complete caching system
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- End-to-end pipeline working
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- **Demo**: Generate AI summaries with caching
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### Sprint 3 Goals (Weeks 5-6)
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- Add multi-model support (Story 2.4)
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- Implement export functionality (Story 2.5)
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- Performance optimization
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- **Demo**: Complete YouTube Summarizer with all features
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---
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## 📊 Progress Tracking
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### Story Completion Tracking
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Create a simple tracking board or use this template:
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```markdown
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## Sprint 1 Progress
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- [x] Story 1.1: Project Setup ✅ (Completed)
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- [ ] Story 1.2: URL Validation (In Progress - 60%)
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- [x] Task 1: Backend validation
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- [x] Task 2: Frontend validation
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- [ ] Task 3: API endpoint
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- [ ] Task 4-6: Remaining tasks
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- [ ] Story 1.3: Transcript Extraction (Not Started)
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- [ ] Story 1.4: Basic Web Interface (Not Started)
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```
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### Daily Standup Template
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```markdown
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**Yesterday**: Completed Story 1.2 Tasks 1-2 (URL validation logic)
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**Today**: Working on Story 1.2 Task 3 (API endpoint)
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**Blockers**: Need clarification on error message format
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```
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---
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## 🔗 Quick Links
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### Documentation
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- [Architecture Document](architecture.md) - Complete technical specification
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- [Frontend Specification](front-end-spec.md) - UI/UX requirements
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- [Original PRD](prd.md) - Product requirements
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- [Epic Index](prd/index.md) - Epic overview and status
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### Story Files
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- [Epic 1 Stories](stories/) - Foundation & YouTube Integration
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- [Epic 2 Stories](stories/) - AI Summarization Engine
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- [Epic 3 Planning](prd/epic-3-enhanced-user-experience.md) - Future features
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### BMad Method Resources
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- Story template: `.bmad-core/templates/story-tmpl.yaml`
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- Development workflow: `.bmad-core/enhanced-ide-development-workflow.md`
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---
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## 🤝 Communication Protocols
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### Questions About Stories
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1. Check the Dev Notes section in the story
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2. Review the architecture document references
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3. Look for similar patterns in completed stories
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4. Ask in team channel with story reference (e.g., "Question about Story 1.2, Task 3")
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### Reporting Issues
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When reporting issues, include:
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- Story ID and Task number
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- Expected behavior from acceptance criteria
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- Actual behavior observed
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- Error messages and logs
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- Steps to reproduce
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### Code Review Process
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1. Create PR with story reference in title: `feat(story-1.2): Implement URL validation`
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2. Link to story file in PR description
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3. Include acceptance criteria checklist
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4. Request review from team lead
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---
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## 🎯 Definition of Done
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A story is considered DONE when:
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1. ✅ All acceptance criteria are met
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2. ✅ All tasks and subtasks are completed
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3. ✅ Unit tests written and passing (>80% coverage)
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4. ✅ Integration tests passing
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5. ✅ Code reviewed and approved
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6. ✅ Documentation updated if needed
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7. ✅ No critical bugs or security issues
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8. ✅ Story status updated to "Done"
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9. ✅ Demo-able to stakeholders
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---
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## 🚀 Ready to Start!
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**Your first action items:**
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1. **Set up development environment** using the quick setup commands above
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2. **Start with Story 1.2** - URL Validation and Parsing
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3. **Create feature branch**: `git checkout -b feature/story-1.2-url-validation`
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4. **Open story file**: `docs/stories/1.2.youtube-url-validation-parsing.md`
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5. **Begin with Task 1**: Backend URL Validation Service
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**Remember**: Each story has comprehensive Dev Notes with code examples. Use them as your implementation guide!
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---
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*This handoff document prepared by Bob (Scrum Master) following BMad Method best practices.*
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*Last updated: 2025-01-25* |