# 多阶段构建 - 前端
FROM node:18-alpine AS frontend-build

WORKDIR /app/client

# 复制前端package文件
COPY client/package*.json ./

# 安装前端依赖
RUN npm ci --only=production

# 复制前端源代码
COPY client/ ./

# 构建前端应用
RUN npm run build

# 多阶段构建 - 后端
FROM node:18-alpine AS backend

WORKDIR /app

# 安装系统依赖
RUN apk add --no-cache \
    python3 \
    make \
    g++ \
    cairo-dev \
    jpeg-dev \
    pango-dev \
    musl-dev \
    giflib-dev \
    pixman-dev \
    pangomm-dev \
    libjpeg-turbo-dev \
    freetype-dev

# 复制后端package文件
COPY server/package*.json ./

# 安装后端依赖
RUN npm ci --only=production

# 复制后端源代码
COPY server/ ./

# 从前端构建阶段复制构建结果
COPY --from=frontend-build /app/client/build ./public

# 创建必要的目录
RUN mkdir -p uploads outputs logs

# 设置权限
RUN chown -R node:node /app

# 切换到非root用户
USER node

# 暴露端口
EXPOSE 3001

# 健康检查
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD node healthcheck.js

# 启动命令
CMD ["npm", "start"]