# Frontend Dockerfile - Multi-stage build
FROM node:18-alpine AS builder

# 设置工作目录
WORKDIR /app

# 复制 package 文件
COPY package*.json ./

# 安装依赖
RUN npm ci

# 复制源代码
COPY . .

# 构建生产版本
RUN npm run build

# 生产镜像 - 使用 nginx
FROM nginx:alpine

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

# 复制 nginx 配置
COPY nginx.conf /etc/nginx/conf.d/default.conf

# 暴露端口
EXPOSE 80

# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=10s --retries=3 \
    CMD wget --quiet --tries=1 --spider http://localhost/ || exit 1

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