# SwiftOps Backend - Quick Start Guide

Get the backend running in 5 minutes.

---

## 🚀 Prerequisites

- Python 3.11+
- Docker & Docker Compose
- Git

---

## ⚡ Quick Setup (Docker)

### **1. Clone and Setup**

```bash
# Clone repository
git clone <repo-url>
cd backend

# Copy environment file
cp .env.example .env
```

### **2. Configure Environment**

Edit `.env` and add your Supabase credentials:

```bash
# Minimum required configuration
DATABASE_URL=postgresql://postgres:password@db.your-project.supabase.co:5432/postgres
SUPABASE_URL=https://your-project.supabase.co
SUPABASE_ANON_KEY=your-anon-key
SUPABASE_SERVICE_KEY=your-service-key
SECRET_KEY=your-secret-key-change-this
```

### **3. Start Everything**

```bash
# Start all services (API, Celery, Redis, PostgreSQL)
docker-compose up -d

# View logs
docker-compose logs -f api

# Check status
docker-compose ps
```

### **4. Run Migrations**

```bash
# Run database migrations
docker-compose exec api alembic upgrade head

# Seed test data (optional)
docker-compose exec api python scripts/seed_data.py
```

### **5. Test the API**

Open your browser:
- **API Docs**: http://localhost:8000/docs
- **Health Check**: http://localhost:8000/health

---

## 🛠️ Manual Setup (Without Docker)

### **1. Create Virtual Environment**

```bash
# Create venv
python -m venv venv

# Activate (Linux/Mac)
source venv/bin/activate

# Activate (Windows)
venv\Scripts\activate
```

### **2. Install Dependencies**

```bash
pip install -r requirements.txt
```

### **3. Setup Environment**

```bash
cp .env.example .env
# Edit .env with your configuration
```

### **4. Start Redis** (Required for Celery)

```bash
# Using Docker
docker run -d -p 6379:6379 redis:alpine

# Or install Redis locally
# Mac: brew install redis && redis-server
# Ubuntu: sudo apt install redis-server && redis-server
```

### **5. Run Migrations**

```bash
alembic upgrade head
```

### **6. Start Services**

**Terminal 1 - API Server**:
```bash
uvicorn app.main:app --reload --host 0.0.0.0 --port 8000
```

**Terminal 2 - Celery Worker**:
```bash
celery -A app.tasks.celery_app worker --loglevel=info
```

**Terminal 3 - Celery Beat** (Scheduler):
```bash
celery -A app.tasks.celery_app beat --loglevel=info
```

---

## 🧪 Verify Installation

### **1. Health Check**

```bash
curl http://localhost:8000/health
```

Expected response:
```json
{
  "status": "healthy",
  "database": "connected",
  "redis": "connected",
  "version": "1.0.0"
}
```

### **2. Run Tests**

```bash
# Run all tests
pytest

# Run with coverage
pytest --cov=app --cov-report=html

# Open coverage report
open htmlcov/index.html
```

### **3. Test API Endpoint**

```bash
# Create a test user (if seed data not loaded)
curl -X POST http://localhost:8000/api/v1/auth/register \
  -H "Content-Type: application/json" \
  -d '{
    "email": "test@example.com",
    "password": "testpassword123",
    "name": "Test User"
  }'

# Login
curl -X POST http://localhost:8000/api/v1/auth/login \
  -H "Content-Type: application/json" \
  -d '{
    "email": "test@example.com",
    "password": "testpassword123"
  }'
```

---

## 📁 Project Structure Overview

```
backend/
├── app/
│   ├── api/              # API endpoints
│   ├── services/         # Business logic
│   ├── repositories/     # Data access
│   ├── models/           # Database models
│   ├── schemas/          # Request/response schemas
│   └── tasks/            # Background tasks
├── tests/                # Test suite
├── scripts/              # Utility scripts
└── .env                  # Configuration
```

---

## 🔑 Key Endpoints

### **Authentication**
- `POST /api/v1/auth/login` - User login
- `POST /api/v1/auth/register` - User registration
- `POST /api/v1/auth/refresh` - Refresh token

### **Tickets**
- `GET /api/v1/tickets` - List tickets
- `POST /api/v1/tickets` - Create ticket
- `POST /api/v1/tickets/{id}/assign` - Assign ticket
- `PATCH /api/v1/tickets/{id}/status` - Update status

### **Payroll**
- `GET /api/v1/payroll` - List payroll records
- `POST /api/v1/payroll/generate` - Generate payroll
- `PATCH /api/v1/payroll/{id}/mark-paid` - Mark as paid

### **Inventory**
- `GET /api/v1/inventory` - List inventory
- `POST /api/v1/inventory/assign` - Assign to agent
- `POST /api/v1/inventory/return` - Return equipment

### **Analytics**
- `GET /api/v1/analytics/dashboard` - Dashboard metrics
- `GET /api/v1/analytics/agent-performance` - Agent stats
- `GET /api/v1/analytics/sla-compliance` - SLA reports

---

## 🐛 Troubleshooting

### **Issue: Database connection failed**

**Solution**:
```bash
# Check DATABASE_URL in .env
# Verify Supabase project is running
# Test connection:
psql $DATABASE_URL
```

### **Issue: Redis connection failed**

**Solution**:
```bash
# Check if Redis is running
docker ps | grep redis

# Or test connection
redis-cli ping
# Should return: PONG
```

### **Issue: Celery tasks not running**

**Solution**:
```bash
# Check Celery worker is running
celery -A app.tasks.celery_app inspect active

# Check Celery beat is running
celery -A app.tasks.celery_app inspect scheduled

# View Celery logs
docker-compose logs -f celery-worker
```

### **Issue: Import errors**

**Solution**:
```bash
# Ensure virtual environment is activated
which python
# Should show: /path/to/venv/bin/python

# Reinstall dependencies
pip install -r requirements.txt --force-reinstall
```

### **Issue: Alembic migration failed**

**Solution**:
```bash
# Check current migration version
alembic current

# Downgrade one version
alembic downgrade -1

# Upgrade again
alembic upgrade head

# If stuck, reset migrations (CAUTION: drops all data)
alembic downgrade base
alembic upgrade head
```

---

## 📝 Common Development Tasks

### **Create a New Migration**

```bash
# Auto-generate migration from model changes
alembic revision --autogenerate -m "Add new column to tickets"

# Create empty migration
alembic revision -m "Custom migration"

# Apply migration
alembic upgrade head
```

### **Add a New API Endpoint**

1. Create schema in `app/schemas/`:
```python
# app/schemas/ticket.py
class TicketCreate(BaseModel):
    title: str
    description: str
    priority: str
```

2. Add service method in `app/services/`:
```python
# app/services/ticket_service.py
async def create_ticket(self, data: TicketCreate):
    # Business logic here
    pass
```

3. Add API route in `app/api/v1/`:
```python
# app/api/v1/tickets.py
@router.post("/tickets")
async def create_ticket(
    data: TicketCreate,
    service: TicketService = Depends(get_ticket_service)
):
    return await service.create_ticket(data)
```

### **Add a Background Task**

```python
# app/tasks/custom_tasks.py
from app.tasks.celery_app import celery_app

@celery_app.task
def my_background_task(param1, param2):
    # Task logic here
    pass

# Trigger from API
my_background_task.delay(param1, param2)
```

### **Run Specific Tests**

```bash
# Run single test file
pytest tests/unit/test_services/test_ticket_service.py

# Run single test function
pytest tests/unit/test_services/test_ticket_service.py::test_assign_ticket

# Run tests matching pattern
pytest -k "test_ticket"

# Run with verbose output
pytest -v

# Run with print statements
pytest -s
```

---

## 🔧 Development Tools

### **Database Management**

```bash
# Connect to database
psql $DATABASE_URL

# View tables
\dt

# Describe table
\d tickets

# Run query
SELECT * FROM tickets LIMIT 10;
```

### **Redis Management**

```bash
# Connect to Redis
redis-cli

# View all keys
KEYS *

# Get value
GET ticket:123

# Delete key
DEL ticket:123

# Clear all data (CAUTION)
FLUSHALL
```

### **API Testing with HTTPie**

```bash
# Install HTTPie
pip install httpie

# Test endpoint
http GET http://localhost:8000/api/v1/tickets \
  Authorization:"Bearer YOUR_TOKEN"

# POST request
http POST http://localhost:8000/api/v1/tickets \
  Authorization:"Bearer YOUR_TOKEN" \
  title="Test Ticket" \
  description="Test description"
```

---

## 📚 Next Steps

1. **Read the Architecture Guide**: `ARCHITECTURE.md`
2. **Explore API Documentation**: http://localhost:8000/docs
3. **Review Code Examples**: Check `app/services/` for business logic patterns
4. **Write Tests**: Add tests for new features in `tests/`
5. **Check Background Tasks**: Review `app/tasks/` for scheduled jobs

---

## 🆘 Getting Help

- **Documentation**: See `README.md` and `ARCHITECTURE.md`
- **API Docs**: http://localhost:8000/docs
- **Issues**: Create an issue on GitHub
- **Team Chat**: [Your team communication channel]

---

## ✅ Checklist for New Developers

- [ ] Clone repository
- [ ] Setup environment variables
- [ ] Start services (Docker or manual)
- [ ] Run migrations
- [ ] Run tests (all passing)
- [ ] Access API docs at http://localhost:8000/docs
- [ ] Create a test ticket via API
- [ ] Review architecture documentation
- [ ] Understand folder structure
- [ ] Ready to code! 🚀