upstream hesupipe_ai_kefu {
    server 127.0.0.1:8017;
    keepalive 64;
}

server {
    listen 80;
    server_name _;  # 替换为你的域名，如 chat.xxx.com

    # 强制跳转 HTTPS（取消注释启用）
    # return 301 https://$host$request_uri;

    location / {
        proxy_pass http://hesupipe_ai_kefu;
        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;
    }

    # WebSocket 专用路由
    location /ws/ {
        proxy_pass http://hesupipe_ai_kefu;
        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_read_timeout 3600s;
        proxy_send_timeout 3600s;
    }

    # 静态文件直接由 OpenResty 处理，不走后端
    location /static/ {
        alias /www/hesupipe_ai_kefu/static/;
        expires 7d;
        add_header Cache-Control "public, immutable";
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Methods "GET, OPTIONS";
    }

    # Widget.js 允许跨域（供其他网站嵌入）
    location = /static/widget.js {
        alias /www/hesupipe_ai_kefu/static/widget.js;
        expires 1d;
        add_header Cache-Control "public";
        add_header Access-Control-Allow-Origin *;
        add_header Access-Control-Allow-Methods "GET, OPTIONS";
        add_header Access-Control-Allow-Headers "Origin, Content-Type, Accept";
    }

    # API 接口
    location /api/ {
        proxy_pass http://hesupipe_ai_kefu;
        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;
    }

    # Health check
    location /health {
        proxy_pass http://hesupipe_ai_kefu;
    }

    access_log /var/log/nginx/hesupipe_ai_kefu_access.log;
    error_log /var/log/nginx/hesupipe_ai_kefu_error.log;
}

# HTTPS 配置（取消注释并填入证书路径启用）
# server {
#     listen 443 ssl http2;
#     server_name _;  # 替换为你的域名
#
#     ssl_certificate /etc/nginx/ssl/cert.pem;
#     ssl_certificate_key /etc/nginx/ssl/key.pem;
#     ssl_protocols TLSv1.2 TLSv1.3;
#     ssl_ciphers HIGH:!aNULL:!MD5;
#
#     location / {
#         proxy_pass http://hesupipe_ai_kefu;
#         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;
#     }
#
#     location /ws/ {
#         proxy_pass http://hesupipe_ai_kefu;
#         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_read_timeout 3600s;
#         proxy_send_timeout 3600s;
#     }
#
#     location /static/ {
#         alias /www/hesupipe_ai_kefu/static/;
#         expires 7d;
#         add_header Cache-Control "public, immutable";
#         add_header Access-Control-Allow-Origin *;
#     }
#
#     location = /static/widget.js {
#         alias /www/hesupipe_ai_kefu/static/widget.js;
#         expires 1d;
#         add_header Cache-Control "public";
#         add_header Access-Control-Allow-Origin *;
#     }
#
#     location /api/ {
#         proxy_pass http://hesupipe_ai_kefu;
#         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;
#     }
#
#     access_log /var/log/nginx/hesupipe_ai_kefu_access.log;
#     error_log /var/log/nginx/hesupipe_ai_kefu_error.log;
# }