# Docker Hub 官方镜像：请在本机 Docker 中配置「阿里云镜像加速器」后再构建/拉取
# （控制台：容器镜像服务 ACR → 镜像工具 → 镜像加速器，将地址写入 Docker Engine 的 registry-mirrors）
services:
  db:
    image: postgres:16-alpine
    container_name: exam-helper-db
    restart: unless-stopped
    environment:
      POSTGRES_DB: exam_helper
      POSTGRES_USER: exam_user
      POSTGRES_PASSWORD: exam_pass
    volumes:
      - postgres_data:/var/lib/postgresql/data
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U exam_user -d exam_helper"]
      interval: 5s
      timeout: 5s
      retries: 10

  backend:
    build:
      context: ./backend
    container_name: exam-helper-backend
    restart: unless-stopped
    # AI 相关变量优先从 .env.example 注入；若存在 .env 则覆盖同名项（见 Compose env_file 顺序）
    env_file:
      - .env.example
      - path: .env
        required: false
    environment:
      DATABASE_URL: postgresql+psycopg://exam_user:exam_pass@db:5432/exam_helper
      # 本地开发 Vite + Docker 前端均需允许
      CORS_ORIGINS: http://localhost:5173,http://localhost:8173
      UPLOAD_DIR: /app/uploads
    volumes:
      - uploads_data:/app/uploads
    depends_on:
      db:
        condition: service_healthy
    ports:
      - "localhost:8866:8000"

  frontend:
    build:
      context: ./frontend
    container_name: exam-helper-frontend
    restart: unless-stopped
    depends_on:
      - backend
    ports:
      - "localhost:8173:80"

volumes:
  postgres_data:
  uploads_data: