# /etc/nginx/sites-available/valuefrontier
# CDN 就绪版本 - 修复 api.valuefrontier.cn 配置
#
# 变更说明:
# 1. 修复 api.valuefrontier.cn 指向正确的后端
# 2. 添加所有必要的代理规则到 api 域名
# 3. 添加 CORS 支持（允许 CDN 域名访问）

# WebSocket 连接升级映射
map $http_upgrade $connection_upgrade {
    default upgrade;
    '' close;
}

# ============================================
# Flask 后端负载均衡（支持多进程）
# ============================================
upstream flask_backend {
    server 110.42.32.207:5001;
    keepalive 32;
}

# ============================================
# HTTP (端口 80) - 主域名
# ============================================
server {
    listen 80;
    server_name valuefrontier.cn www.valuefrontier.cn;

    location /.well-known/acme-challenge/ {
        root /var/www/html;
    }

    location ~ \.txt$ {
        root /var/www/valuefrontier.cn;
        add_header Content-Type "text/plain";
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

# ============================================
# HTTPS (端口 443) - 主域名
# ============================================
server {
    listen 443 ssl http2;
    server_name valuefrontier.cn www.valuefrontier.cn;

    ssl_certificate /etc/letsencrypt/live/valuefrontier.cn/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/valuefrontier.cn/privkey.pem;

    # ============================================
    # SEO 文件
    # ============================================
    location = /robots.txt {
        root /var/www/valuefrontier;
        add_header Content-Type "text/plain; charset=utf-8";
        add_header Cache-Control "public, max-age=3600";
        access_log off;
    }

    location = /sitemap.xml {
        root /var/www/valuefrontier;
        add_header Content-Type "application/xml; charset=utf-8";
        add_header Cache-Control "public, max-age=3600";
        access_log off;
    }

    # ============================================
    # React 应用静态资源
    # ============================================
    location /static/ {
        alias /var/www/valuefrontier.cn/static/;
        expires 1y;
        add_header Cache-Control "public, immutable";
        add_header Access-Control-Allow-Origin *;
    }

    location ~ \.txt$ {
        root /var/www/valuefrontier.cn;
        add_header Content-Type "text/plain";
    }

    location /manifest.json {
        alias /var/www/valuefrontier.cn/manifest.json;
        add_header Content-Type "application/json";
    }

    location /favicon.ico {
        alias /var/www/valuefrontier.cn/favicon.ico;
    }

    # ============================================
    # API 代理（保持现有配置）
    # ============================================
    location /api/ {
        proxy_pass http://flask_backend;
        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 $scheme;
        proxy_set_header Connection "";
        proxy_connect_timeout 60s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
        proxy_next_upstream error timeout http_502 http_503 http_504;
        proxy_next_upstream_tries 3;
    }

    # WebSocket (Socket.IO)
    location /socket.io/ {
        proxy_pass http://flask_backend;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        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 $scheme;
        proxy_connect_timeout 7d;
        proxy_send_timeout 7d;
        proxy_read_timeout 7d;
        proxy_buffering off;
    }

    # 实时行情 WebSocket
    location /ws/sse {
        proxy_pass http://127.0.0.1:8765;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        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 $scheme;
        proxy_connect_timeout 7d;
        proxy_send_timeout 7d;
        proxy_read_timeout 7d;
        proxy_buffering off;
    }

    location /ws/szse {
        proxy_pass http://222.128.1.157:8765;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        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 $scheme;
        proxy_connect_timeout 7d;
        proxy_send_timeout 7d;
        proxy_read_timeout 7d;
        proxy_buffering off;
    }

    # MCP 服务
    location /mcp/ {
        proxy_pass http://127.0.0.1:8900/;
        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 $scheme;
        proxy_set_header Connection '';
        proxy_buffering off;
        proxy_cache off;
        chunked_transfer_encoding on;
        proxy_connect_timeout 75s;
        proxy_send_timeout 300s;
        proxy_read_timeout 300s;
        gzip off;
        add_header X-Accel-Buffering no;
        add_header 'Access-Control-Allow-Origin' '$http_origin' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
        add_header 'Access-Control-Allow-Headers' 'Content-Type, Authorization, X-Requested-With' always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
    }

    # 概念板块API
    location /concept-api/ {
        proxy_pass http://222.128.1.157:16801/;
        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 $scheme;
        add_header Access-Control-Allow-Origin * always;
        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS" always;
        add_header Access-Control-Allow-Headers "DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range" always;
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }

    # Elasticsearch API
    location /es-api/ {
        proxy_pass http://222.128.1.157:19200/;
        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 $scheme;
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS, HEAD' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
        proxy_buffering off;
    }

    # Bytedesk 客服系统
    location /bytedesk/ {
        proxy_pass http://43.143.189.195/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        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 $scheme;
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
    }

    location /websocket {
        proxy_pass http://43.143.189.195/websocket;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        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 $scheme;
        proxy_connect_timeout 86400s;
        proxy_send_timeout 86400s;
        proxy_read_timeout 86400s;
    }

    location /chat/ {
        proxy_pass http://43.143.189.195/chat/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        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 $scheme;
        sub_filter 'http://43.143.189.195' 'https://valuefrontier.cn';
        sub_filter_once off;
        sub_filter_types text/css text/javascript application/javascript application/json;
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
    }

    location /config/ {
        proxy_pass http://43.143.189.195/config/;
        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 $scheme;
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
    }

    location ^~ /uploads/ {
        proxy_pass http://43.143.189.195/uploads/;
        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 $scheme;
        proxy_cache_valid 200 1d;
        expires 1d;
        add_header Cache-Control "public, max-age=86400";
    }

    location ^~ /file/2025/ {
        proxy_pass http://43.143.189.195/file/2025/;
        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 $scheme;
        proxy_cache_valid 200 1d;
        expires 1d;
        add_header Cache-Control "public, max-age=86400";
        add_header Access-Control-Allow-Origin *;
    }

    location /visitor/ {
        proxy_pass http://43.143.189.195/visitor/;
        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 $scheme;
        proxy_set_header Accept-Encoding "";
        sub_filter 'http://43.143.189.195' 'https://valuefrontier.cn';
        sub_filter_once off;
        sub_filter_types application/json;
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE' always;
        add_header 'Access-Control-Allow-Headers' 'Content-Type, Authorization, X-Requested-With' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
    }

    location = /stomp {
        proxy_pass http://43.143.189.195/api/websocket;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        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 $scheme;
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
        proxy_connect_timeout 7d;
        proxy_send_timeout 7d;
        proxy_read_timeout 7d;
        proxy_buffering off;
    }

    location /stomp/ {
        proxy_pass http://43.143.189.195/api/websocket/;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        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 $scheme;
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range,Authorization' always;
        add_header 'Access-Control-Allow-Credentials' 'true' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
        proxy_connect_timeout 7d;
        proxy_send_timeout 7d;
        proxy_read_timeout 7d;
        proxy_buffering off;
    }

    location ^~ /avatars/ {
        proxy_pass http://43.143.189.195/uploads/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_cache_valid 200 1d;
        proxy_cache_bypass $http_cache_control;
    }

    location /assets/ {
        proxy_pass http://43.143.189.195/assets/;
        proxy_set_header Host $host;
        expires 1d;
        add_header Cache-Control "public, immutable";
    }

    # 新闻搜索API
    location /news-api/ {
        proxy_pass http://222.128.1.157:21891/;
        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 $scheme;
        add_header Access-Control-Allow-Origin * always;
        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS" always;
        add_header Access-Control-Allow-Headers "DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range" always;
        proxy_connect_timeout 90s;
        proxy_send_timeout 90s;
        proxy_read_timeout 90s;
    }

    # 研报搜索API
    location /report-api/ {
        proxy_pass http://222.128.1.157:8811/;
        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 $scheme;
        add_header Access-Control-Allow-Origin * always;
        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS" always;
        add_header Access-Control-Allow-Headers "DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range" always;
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
    }

    # 商品分类树数据API
    location /category-api/ {
        proxy_pass http://222.128.1.157:18827/;
        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 $scheme;
        add_header 'Access-Control-Allow-Origin' '*' always;
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS' always;
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range' always;
        if ($request_method = 'OPTIONS') {
            return 204;
        }
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
        proxy_buffering on;
        proxy_buffer_size 128k;
        proxy_buffers 8 256k;
        proxy_busy_buffers_size 512k;
    }

    # ============================================
    # 官网静态资源
    # ============================================
    location ^~ /css/ {
        root /var/www/valuefrontier;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    location ^~ /js/ {
        root /var/www/valuefrontier;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    location ^~ /img/ {
        root /var/www/valuefrontier;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    location ^~ /videos/ {
        root /var/www/valuefrontier;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    location ^~ /fonts/ {
        root /var/www/valuefrontier;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    # 官网HTML页面
    location ~ ^/(conversational-ai|customizable-workflows|integration|docs|sign-in|sign-up|reset-password)\.html$ {
        root /var/www/valuefrontier;
        try_files $uri =404;
    }

    # 官网首页
    location = / {
        root /var/www/valuefrontier;
        try_files /index.html =404;
    }

    # ============================================
    # React 应用 (默认 catch-all)
    # ============================================
    location / {
        root /var/www/valuefrontier.cn;
        index index.html index.htm;
        try_files $uri $uri/ /index.html;

        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
            expires 1y;
            add_header Cache-Control "public, immutable";
            add_header Access-Control-Allow-Origin *;
        }
    }
}

# ============================================
# api.valuefrontier.cn - API 专用域名
# ============================================

server {
    listen 80;
    server_name api.valuefrontier.cn;

    location /.well-known/acme-challenge/ {
        root /var/www/html;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

server {
    listen 443 ssl http2;
    server_name api.valuefrontier.cn;

    ssl_certificate /etc/letsencrypt/live/api.valuefrontier.cn/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/api.valuefrontier.cn/privkey.pem;

    # SSL 优化
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_prefer_server_ciphers off;
    ssl_session_cache shared:SSL:10m;
    ssl_session_timeout 1d;

    # ============================================
    # CORS 配置（允许 CDN 域名访问）
    # ============================================

    # 允许的来源
    set $cors_origin '';
    if ($http_origin ~* "^https://(www\.)?valuefrontier\.cn$") {
        set $cors_origin $http_origin;
    }

    # 通用 CORS 头
    add_header 'Access-Control-Allow-Origin' $cors_origin always;
    add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;
    add_header 'Access-Control-Allow-Headers' 'Origin, Content-Type, Accept, Authorization, X-Requested-With' always;
    add_header 'Access-Control-Allow-Credentials' 'true' always;

    # ============================================
    # Flask API 代理
    # ============================================
    location /api/ {
        # 处理 OPTIONS 预检请求
        if ($request_method = 'OPTIONS') {
            add_header 'Access-Control-Allow-Origin' $cors_origin always;
            add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;
            add_header 'Access-Control-Allow-Headers' 'Origin, Content-Type, Accept, Authorization, X-Requested-With' always;
            add_header 'Access-Control-Allow-Credentials' 'true' always;
            add_header 'Access-Control-Max-Age' 86400;
            add_header 'Content-Type' 'text/plain charset=UTF-8';
            add_header 'Content-Length' 0;
            return 204;
        }

        proxy_pass http://flask_backend;
        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 $scheme;
        proxy_set_header Connection "";
        proxy_connect_timeout 60s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
        proxy_next_upstream error timeout http_502 http_503 http_504;
        proxy_next_upstream_tries 3;
    }

    # ============================================
    # WebSocket 代理
    # ============================================
    location /socket.io/ {
        proxy_pass http://flask_backend;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        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 $scheme;
        proxy_connect_timeout 7d;
        proxy_send_timeout 7d;
        proxy_read_timeout 7d;
        proxy_buffering off;
    }

    # 实时行情 WebSocket - 上交所
    location /ws/sse {
        proxy_pass http://127.0.0.1:8765;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        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 $scheme;
        proxy_connect_timeout 7d;
        proxy_send_timeout 7d;
        proxy_read_timeout 7d;
        proxy_buffering off;
    }

    # 实时行情 WebSocket - 深交所
    location /ws/szse {
        proxy_pass http://222.128.1.157:8765;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        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 $scheme;
        proxy_connect_timeout 7d;
        proxy_send_timeout 7d;
        proxy_read_timeout 7d;
        proxy_buffering off;
    }

    # ============================================
    # 其他 API 代理
    # ============================================

    # 概念板块API
    location /concept-api/ {
        proxy_pass http://222.128.1.157:16801/;
        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 $scheme;
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
    }

    # Elasticsearch API
    location /es-api/ {
        proxy_pass http://222.128.1.157:19200/;
        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 $scheme;
        proxy_connect_timeout 60s;
        proxy_send_timeout 60s;
        proxy_read_timeout 60s;
        proxy_buffering off;
    }

    # 新闻搜索API
    location /news-api/ {
        proxy_pass http://222.128.1.157:21891/;
        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 $scheme;
        proxy_connect_timeout 90s;
        proxy_send_timeout 90s;
        proxy_read_timeout 90s;
    }

    # 研报搜索API
    location /report-api/ {
        proxy_pass http://222.128.1.157:8811/;
        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 $scheme;
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
    }

    # 商品分类API
    location /category-api/ {
        proxy_pass http://222.128.1.157:18827/;
        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 $scheme;
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;
        proxy_buffering on;
        proxy_buffer_size 128k;
        proxy_buffers 8 256k;
        proxy_busy_buffers_size 512k;
    }

    # MCP 服务
    location /mcp/ {
        proxy_pass http://127.0.0.1:8900/;
        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 $scheme;
        proxy_set_header Connection '';
        proxy_buffering off;
        proxy_cache off;
        chunked_transfer_encoding on;
        proxy_connect_timeout 75s;
        proxy_send_timeout 300s;
        proxy_read_timeout 300s;
        gzip off;
        add_header X-Accel-Buffering no;
    }

    # 健康检查
    location /health {
        return 200 'ok';
        add_header Content-Type text/plain;
    }

    # 默认返回 404
    location / {
        return 404 '{"error": "Not Found", "message": "Please use /api/ prefix"}';
        add_header Content-Type application/json;
    }
}