#!/bin/bash

echo "========================================="
echo "完整的 Nginx 配置更新"
echo "========================================="

# 备份当前配置
echo "[1] 备份当前配置..."
sudo cp /etc/nginx/sites-available/valuefrontier /etc/nginx/sites-available/valuefrontier.bak.$(date +%Y%m%d_%H%M%S)

echo ""
echo "[2] 请编辑 Nginx 配置文件："
echo "sudo nano /etc/nginx/sites-available/valuefrontier"
echo ""
echo "在 HTTPS server 块中（约第 228 行，location /chat/ 之前）添加："
echo ""
cat << 'NGINX_CONFIG'
    # ============================================
    # AI Chat 应用 (Next.js) - MCP 集成
    # ============================================

    # AI Chat 主应用
    location /ai-chat {
        proxy_pass http://127.0.0.1:3000/ai-chat;
        proxy_http_version 1.1;

        # 保持原始 Host 和协议
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header X-Forwarded-Port 443;

        # Cookie 传递 - 重要！
        proxy_set_header Cookie $http_cookie;
        proxy_pass_request_headers on;

        # WebSocket 支持
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # 禁用缓冲
        proxy_buffering off;
        proxy_cache off;
        chunked_transfer_encoding on;

        # 超时设置
        proxy_connect_timeout 60s;
        proxy_send_timeout 300s;
        proxy_read_timeout 300s;
    }

    # Next.js 静态资源
    location ~ ^/ai-chat/(_next|_vercel|__nextjs) {
        proxy_pass http://127.0.0.1:3000;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;

        # 静态资源缓存
        expires 365d;
        add_header Cache-Control "public, immutable";
    }

    # AI Chat 的 API 调用（如果需要）
    location ~ ^/ai-chat/(api|mcp) {
        proxy_pass http://127.0.0.1:3000;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto https;
        proxy_set_header Cookie $http_cookie;
        proxy_buffering off;
    }

NGINX_CONFIG

echo ""
echo "[3] 保存文件后，测试配置："
echo "sudo nginx -t"
echo ""
echo "[4] 如果测试通过，重载 Nginx："
echo "sudo nginx -s reload"
echo ""
echo "========================================="
echo "访问地址："
echo "https://valuefrontier.cn/ai-chat"
echo "========================================="