# ==================================================
# OCDP Docker Compose (frontend + gateway layer)
# ==================================================
# 使用方式:
#   docker compose -f docker-compose.yml \
#     -f ./backend/docker-compose.yml \
#     --profile backend up --build -d
#
# 说明:
#   - 本文件只负责前端构建和 Nginx。
#   - Backend / PostgreSQL / pgAdmin 由 backend/docker-compose.yml 提供。
#   - Nginx 统一监听 80/443（默认映射 WEB_HTTP_PORT=80、WEB_HTTPS_PORT=443），
#     根据路径转发：/api/* → backend，其他路径 → 前端静态文件。
# ==================================================

services:
  # --------------------------------------------------
  # 构建前端静态资源 (一次性 Job)
  # --------------------------------------------------
  frontend-build:
    image: node:20-alpine
    container_name: ocdp-frontend-build
    init: true
    working_dir: /app
    restart: "no"
    environment:
      NODE_ENV: production
      NPM_CONFIG_PRODUCTION: "false"  # ensure devDependencies (tsc, vite) are installed for build
      # 默认通过 Nginx 代理到 backend -> /api/v1
      VITE_API_BASE_URL: ${VITE_API_BASE_URL:-/api/v1}
      FILE_OWNER_UID: ${FILE_OWNER_UID:-1000}
      FILE_OWNER_GID: ${FILE_OWNER_GID:-1000}
    command: >
      sh -c "
        set -eux;
        npm ci;
        npm run build;
        mkdir -p /build;
        rm -rf /build/*;
        cp -R dist/. /build/;
        if [ -d dist ]; then chown -R "$$FILE_OWNER_UID:$$FILE_OWNER_GID" dist; fi;
        if [ -d /build ]; then chown -R "$$FILE_OWNER_UID:$$FILE_OWNER_GID" /build; fi
      "
    volumes:
      - ./frontend:/app
      - frontend_node_modules:/app/node_modules
      - frontend_dist:/build
    networks:
      - ocdp-network

  # --------------------------------------------------
  # Nginx - 静态文件 + /api 反向代理统一入口
  # --------------------------------------------------
  nginx:
    image: nginx:1.27-alpine
    container_name: ocdp-nginx
    depends_on:
      frontend-build:
        condition: service_completed_successfully
    ports:
      - "${WEB_HTTP_PORT:-80}:80"
      - "${WEB_HTTPS_PORT:-443}:443"
    volumes:
      - frontend_dist:/usr/share/nginx/html:ro
      - ./infra/nginx/default.conf:/etc/nginx/conf.d/default.conf:ro
      - ./infra/nginx/certs:/etc/nginx/certs:ro
    healthcheck:
      test: ["CMD-SHELL", "wget -qO- http://localhost/healthz || exit 1"]
      interval: 30s
      timeout: 5s
      retries: 5
    networks:
      - ocdp-network

# ==================================================
# Networks
# ==================================================
networks:
  ocdp-network:
    driver: bridge
    name: ocdp-network

# ==================================================
# Volumes
# ==================================================
volumes:
  frontend_dist:
    driver: local
  frontend_node_modules:
    driver: local