services:
  db:
    image: mysql:8.2
    restart: unless-stopped
    env_file: .env
    volumes:
      - mysql_data:/var/lib/mysql
      - ./db.sql:/docker-entrypoint-initdb.d/01_schema.sql
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "127.0.0.1", "--silent"]
      interval: 10s
      timeout: 5s
      retries: 10
      start_period: 30s

  app:
    build: .
    ports:
      - "8720:8720"
    env_file: .env
    environment:
      MYSQL_HOST: db      # override localhost → compose service name
    depends_on:
      db:
        condition: service_healthy
    restart: unless-stopped

volumes:
  mysql_data: