services:
  # Enable COMPOSE_PROFILES=local-db only when PostgreSQL is hosted in this stack.
  postgres:
    profiles: [local-db]
    image: postgres:16-alpine
    restart: unless-stopped
    environment:
      POSTGRES_DB: ${POSTGRES_DB:-lottery_bot}
      POSTGRES_USER: ${POSTGRES_USER:-lottery_bot}
      # PostgreSQL itself rejects an empty password when local-db is enabled.
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-}
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: [CMD-SHELL, 'pg_isready -U "$$POSTGRES_USER" -d "$$POSTGRES_DB"']
      interval: 5s
      timeout: 5s
      retries: 20

  redis:
    image: redis:7-alpine
    container_name: lottery_redis
    restart: unless-stopped
    command: redis-server --appendonly yes
    volumes:
      - redis_data:/data
    healthcheck:
      test: [CMD, redis-cli, ping]
      interval: 5s
      timeout: 5s
      retries: 20

  bot:
    image: ${BOT_IMAGE:-new_lottery_bot:local}
    build: .
    container_name: lottery_bot
    restart: unless-stopped
    init: true
    env_file: .env.prod
    environment:
      REDIS_URL: ${REDIS_URL:-redis://redis:6379/0}
    volumes:
      - bot_data:/app/data
    depends_on:
      redis:
        condition: service_healthy
    stop_grace_period: 45s
    healthcheck:
      test: [CMD, python, -m, src.core.health]
      interval: 15s
      timeout: 5s
      retries: 4
      start_period: 30s

volumes:
  bot_data:
  postgres_data:
  redis_data: