services:
  postgres:
    image: postgres:15 # Using PostgreSQL 15
    container_name: postgres
    restart: always # Ensures PostgreSQL restarts automatically
    environment:
      # Environment variables for authentication
      - POSTGRES_USER=${POSTGRES_USER:-postgres} # Default: postgres
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-password} # Default: password
      - POSTGRES_DB=${POSTGRES_DB:-postgres} # Default: postgres
      - PGDATA=/var/lib/postgresql/data/pgdata
    volumes:
      # Persistent data storage
      - postgres_data:/var/lib/postgresql/data # Database files
      - ./config/postgres.conf:/etc/postgresql/postgresql.conf # Configuration file
      - ./init:/docker-entrypoint-initdb.d # Initialization scripts
    ports:
      - "5432:5432" # Expose PostgreSQL port
    command: postgres -c config_file=/etc/postgresql/postgresql.conf
    healthcheck:
      # Regular health checks
      test:
        [
          "CMD-SHELL",
          "pg_isready -U ${POSTGRES_USER:-postgres} -d ${POSTGRES_DB:-postgres}",
        ]
      interval: 10s
      timeout: 5s
      retries: 5
      start_period: 30s
    networks:
      - postgres_network
    ulimits:
      # Increase file descriptor limits for production
      nofile:
        soft: 64000
        hard: 64000
    logging:
      # Log rotation to prevent disk space issues
      driver: "json-file"
      options:
        max-size: "200m"
        max-file: "10"

  services:
    chat2db:
      image: chat2db/chat2db:latest
      container_name: chat2db
      ports:
        - "8001:10824"
      networks:
        - postgres_network     
      volumes:
        - chat2db_data:/root/.chat2db
      restart: unless-stopped
      tty: true

volumes:
  chat2db_data:
  postgres_data: # Persistent volume for database files
    driver: local

networks:
  postgres_network:
    driver: bridge