# QuantDinger Docker Compose - One-Click Deployment
# Usage:
#   1. Copy env.example to .env and edit your settings
#      cp backend_api_python/env.example backend_api_python/.env
#   2. IMPORTANT: Generate and set a secure SECRET_KEY in backend_api_python/.env
#      SECRET_KEY=$(python3 -c "import secrets; print(secrets.token_hex(32))")
#      Or edit backend_api_python/.env and replace SECRET_KEY value
#   3. docker-compose up -d --build
#   4. Open http://localhost:8888
#
# Note: The container will NOT start if SECRET_KEY is using the default value.
#       This is a security measure to prevent insecure deployments.

version: '3.8'

services:
  # ========================
  # PostgreSQL Database
  # ========================
  postgres:
    image: postgres:16-alpine
    container_name: quantdinger-db
    restart: unless-stopped
    environment:
      POSTGRES_DB: ${POSTGRES_DB:-quantdinger}
      POSTGRES_USER: ${POSTGRES_USER:-quantdinger}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-quantdinger123}
      TZ: ${TZ:-Asia/Shanghai}
    volumes:
      - postgres_data:/var/lib/postgresql/data
      - ./backend_api_python/migrations/init.sql:/docker-entrypoint-initdb.d/01-init.sql
    ports:
      - "${DB_PORT:-127.0.0.1:5432}:5432"
    networks:
      - quantdinger-network
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-quantdinger} -d ${POSTGRES_DB:-quantdinger}"]
      interval: 10s
      timeout: 5s
      retries: 5

  # ========================
  # Backend API (Python/Flask)
  # ========================
  backend:
    build:
      context: ./backend_api_python
      dockerfile: Dockerfile
    container_name: quantdinger-backend
    restart: unless-stopped
    depends_on:
      postgres:
        condition: service_healthy
    ports:
      - "${BACKEND_PORT:-127.0.0.1:5000}:5000"
    volumes:
      - backend_logs:/app/logs
      - backend_data:/app/data
      # Mount .env for runtime config
      - ./backend_api_python/.env:/app/.env:ro
    environment:
      - PYTHON_API_HOST=0.0.0.0
      - PYTHON_API_PORT=5000
      - TZ=${TZ:-Asia/Shanghai}
      - DATABASE_URL=postgresql://${POSTGRES_USER:-quantdinger}:${POSTGRES_PASSWORD:-quantdinger123}@postgres:5432/${POSTGRES_DB:-quantdinger}
      - DB_TYPE=postgresql
    networks:
      - quantdinger-network
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:5000/api/health"]
      interval: 30s
      timeout: 10s
      retries: 3

  # ========================
  # Frontend (Nginx + Pre-built)
  # ========================
  frontend:
    build:
      context: ./frontend
      dockerfile: Dockerfile
    container_name: quantdinger-frontend
    restart: unless-stopped
    ports:
      - "${FRONTEND_PORT:-8888}:80"
    depends_on:
      - backend
    networks:
      - quantdinger-network
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost/health"]
      interval: 30s
      timeout: 10s
      retries: 3

volumes:
  postgres_data:
    driver: local
  backend_logs:
    driver: local
  backend_data:
    driver: local

networks:
  quantdinger-network:
    driver: bridge