# docker-compose.yml — Production-ready multi-service stack
# App (FastAPI) + PostgreSQL + Redis + Nginx
#
# Usage:
#   docker compose config --quiet   # validate
#   docker compose up -d            # start
#   docker compose ps               # verify
#   docker compose logs -f app      # tail logs

services:
  app:
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - "8080:8080"
    environment:
      DATABASE_URL: "postgresql+asyncpg://appuser:changeme@db:5432/appdb"
      REDIS_URL: "redis://redis:6379/0"
    depends_on:
      db:
        condition: service_healthy
      redis:
        condition: service_healthy
    restart: unless-stopped
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:8080/health"]
      interval: 10s
      timeout: 5s
      retries: 3
      start_period: 15s

  db:
    image: postgres:16-alpine
    environment:
      POSTGRES_USER: appuser
      POSTGRES_PASSWORD: changeme
      POSTGRES_DB: appdb
    volumes:
      - pgdata:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U appuser -d appdb"]
      interval: 5s
      timeout: 3s
      retries: 5
    restart: unless-stopped

  redis:
    image: redis:7-alpine
    command: redis-server --appendonly yes
    volumes:
      - redisdata:/data
    healthcheck:
      test: ["CMD", "redis-cli", "ping"]
      interval: 5s
      timeout: 3s
      retries: 3
    restart: unless-stopped

  nginx:
    image: nginx:1.27-alpine
    ports:
      - "80:80"
    volumes:
      - ./nginx.conf:/etc/nginx/conf.d/default.conf:ro
    depends_on:
      - app
    restart: unless-stopped

volumes:
  pgdata:
  redisdata: