# ============================================================
# 多阶段构建 (开发机有网络时使用)
#   docker build -t weather-data-ui .
# ============================================================
FROM node:20-alpine AS builder

WORKDIR /app

# 安装依赖
COPY package.json package-lock.json* ./
RUN npm ci --registry=https://registry.npmmirror.com

# 复制源码并构建
COPY . .
RUN npm run build:prod

# ============================================================
# 运行阶段 - Nginx 提供静态文件服务
# ============================================================
FROM nginx:alpine

LABEL maintainer="weather-data"
LABEL description="Weather Data System - Frontend UI"

# 删除默认配置
RUN rm -f /etc/nginx/conf.d/default.conf

# 复制自定义 nginx 配置
COPY nginx.conf /etc/nginx/conf.d/default.conf

# 复制构建产物
COPY --from=builder /app/dist /usr/share/nginx/html

EXPOSE 80

HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
  CMD wget -qO- http://localhost/ || exit 1

CMD ["nginx", "-g", "daemon off;"]
