services:
  backend:
    build:
      context: ./backend
      dockerfile: Dockerfile

    container_name: sos-backend
    ports:
      - "${BACKEND_PORT:-8000}:8000"
    volumes:
      - ./backend/data:/app/data
    env_file:
      - .env
    environment:
      # Computed variables that depend on other variables can remain here or be moved to app logic.
      # For now, we construct URLs here using compose substitution (which uses .env values).
      - DATABASE_URL=postgresql+asyncpg://${POSTGRES_USER:-sosuser}:${POSTGRES_PASSWORD:-sospassword}@${DB_HOST:-db}:${DB_PORT:-5432}/${POSTGRES_DB:-sosdb}
      - REDIS_URL=redis://${REDIS_HOST:-redis}:${REDIS_PORT:-6379}/0
      - TZ=${TZ:-Asia/Seoul}
    depends_on:
      - redis
      - db
    restart: unless-stopped

  db:
    image: postgres:${POSTGRES_VERSION:-15-alpine}
    container_name: sos-db
    env_file:
      - .env
    environment:
      - POSTGRES_USER=${POSTGRES_USER}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
      - POSTGRES_DB=${POSTGRES_DB}
      - TZ=${TZ:-Asia/Seoul}
    volumes:
      - ./backend/data/postgres:/var/lib/postgresql/data
    ports:
      - "${DB_PORT:-5432}:5432"
    restart: unless-stopped

  redis:
    image: redis:${REDIS_VERSION:-alpine}
    container_name: sos-redis
    ports:
      - "${REDIS_PORT:-6379}:6379"
    env_file:
      - .env
    environment:
      - TZ=${TZ:-Asia/Seoul}
    volumes:
      - ./backend/data/redis:/data
    command: redis-server --appendonly yes
    restart: unless-stopped

  frontend:
    build:
      context: .
      dockerfile: Dockerfile
    container_name: sos-frontend
    ports:
      - "${FRONTEND_PORT:-3000}:80"
    env_file:
      - .env
    environment:
      - TZ=${TZ:-Asia/Seoul}
    depends_on:
      - backend
    restart: unless-stopped