version: '3.8'

services:
  postgres:
    # 使用自定义 Dockerfile 构建（基于官方镜像）
    build:
      context: ./postgres
      dockerfile: Dockerfile
    image: st-postgres:18.1-pgvector
    container_name: st-postgres
    restart: unless-stopped
    ports:
      - "5432:5432"
    environment:
      # 数据库配置
      POSTGRES_DB: st_dev
      POSTGRES_USER: st_user
      POSTGRES_PASSWORD: st_password
      # PostgreSQL 配置
      POSTGRES_INITDB_ARGS: "--encoding=UTF8 --locale=C"
      # 时区设置
      TZ: Asia/Shanghai
      PGTZ: Asia/Shanghai
    volumes:
      # 数据持久化
      - postgres_data:/var/lib/postgresql/data
      # 初始化脚本
      - ./postgres/init.sql:/docker-entrypoint-initdb.d/01-init.sql:ro
      # PostgreSQL 配置文件（可选）
      - ./postgres/postgresql.conf:/etc/postgresql/postgresql.conf:ro
    command: >
      postgres
      -c shared_preload_libraries=vector
      -c max_connections=200
      -c shared_buffers=256MB
      -c effective_cache_size=1GB
      -c maintenance_work_mem=128MB
      -c checkpoint_completion_target=0.9
      -c wal_buffers=16MB
      -c default_statistics_target=100
      -c random_page_cost=1.1
      -c effective_io_concurrency=200
      -c work_mem=5242kB
      -c huge_pages=off
      -c min_wal_size=1GB
      -c max_wal_size=4GB
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U st_user -d st_dev"]
      interval: 10s
      timeout: 5s
      retries: 5
    networks:
      - st-network

  # pgAdmin - PostgreSQL Web 管理界面（可选）
  pgadmin:
    image: dpage/pgadmin4:latest
    container_name: st-pgadmin
    restart: unless-stopped
    ports:
      - "5050:80"
    environment:
      PGADMIN_DEFAULT_EMAIL: admin@st.local
      PGADMIN_DEFAULT_PASSWORD: admin123
      PGADMIN_CONFIG_SERVER_MODE: 'False'
      PGADMIN_CONFIG_MASTER_PASSWORD_REQUIRED: 'False'
    volumes:
      - pgadmin_data:/var/lib/pgadmin
    depends_on:
      postgres:
        condition: service_healthy
    networks:
      - st-network

volumes:
  postgres_data:
    driver: local
    name: st-postgres-data
  pgadmin_data:
    driver: local
    name: st-pgadmin-data

networks:
  st-network:
    driver: bridge
    name: st-network