# 多阶段构建 - 构建阶段
FROM node:20-alpine AS builder

# 接受构建参数
ARG BUILD_MODE=production
ARG RAGFLOW_BASE=/ragflow/
ENV RAGFLOW_BASE=${RAGFLOW_BASE}

WORKDIR /app

# 安装 pnpm 和依赖（工作空间）
RUN npm install -g pnpm

# 复制源代码
COPY . .

# 复制完工作空间后，安装并链接所有子包依赖
RUN pnpm -r install

# 设置环境文件（用于根应用的构建）
RUN if [ "$BUILD_MODE" = "flask" ]; then \
        cp .env.flask .env; \
    else \
        cp .env.production .env; \
    fi


# 构建 @teres/iframe-bridge
RUN pnpm --filter @teres/iframe-bridge run build

# 构建根 Vite 应用
RUN pnpm --filter ./ run build

# 构建 ragflow_web 前端（Umi 应用）
RUN pnpm --filter ragflow_web run build

# 生产阶段 - nginx
FROM nginx:alpine AS production

# 接受端口与子路径参数
ARG PORT=5173
ARG RAGFLOW_BASE=/ragflow/

# 复制自定义 nginx 配置，分别部署两个前端
RUN cat > /etc/nginx/conf.d/default.conf << EOF
server {
    listen ${PORT};
    server_name localhost;
    root /usr/share/nginx/html;
    index index.html;

    # 根应用（Vite）SPA 路由
    location / {
        try_files \$uri \$uri/ /index.html;
    }

    # ragflow_web（Umi）部署在子路径，支持 SPA 路由
    location ${RAGFLOW_BASE} {
        alias /usr/share/nginx/html/ragflow/;
        # 注意：使用别名目录时，SPA 回退必须指向子路径下的 index.html
        # 否则会错误地回退到根应用的 index.html，导致页面刷新后空白或错路由
        try_files \$uri \$uri/ ${RAGFLOW_BASE}index.html;
    }

    # 静态资源缓存
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # 安全头
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;

    # Gzip 压缩
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_types text/plain text/css text/xml text/javascript application/javascript application/xml+rss application/json;
}
EOF

# 从构建阶段复制构建产物：根应用与 ragflow_web
COPY --from=builder /app/dist /usr/share/nginx/html
COPY --from=builder /app/ragflow_web/dist /usr/share/nginx/html/ragflow

# 暴露端口
EXPOSE ${PORT}

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