# =============================================================================
# 企微智能IT支持服务台 — Nginx 配置（切换到 Green 环境）
# =============================================================================
# 使用方法：将此配置复制到 nginx 容器内覆盖原配置
# =============================================================================

events {
    worker_connections 1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" '
                    '"$http_user_agent"';

    access_log /var/log/nginx/access.log main;
    error_log  /var/log/nginx/error.log warn;

    sendfile        on;
    tcp_nopush      on;
    tcp_nodelay     on;
    keepalive_timeout  65;

    # ------------------------------------------------------------------
    # 真实 IP 还原
    # ------------------------------------------------------------------
    set_real_ip_from 10.0.0.0/8;
    set_real_ip_from 172.16.0.0/12;
    set_real_ip_from 192.168.0.0/16;
    set_real_ip_from 10.212.0.0/16;
    real_ip_header    X-Forwarded-For;
    real_ip_recursive on;

    # ------------------------------------------------------------------
    # Upstream — 切换到 Green 环境
    # ------------------------------------------------------------------
    upstream backend_api {
        server wecom_it_backend:8000;
    }

    # ------------------------------------------------------------------
    # HTTP 服务（监听 80 端口）
    # ------------------------------------------------------------------
    server {
        listen       80;
        listen  [::]:80;
        server_name  localhost;

        # 根路径重定向到 itdesk
        location = / {
            return 301 /itdesk/;
        }

        # 前端静态文件
        location / {
            root   /usr/share/nginx/html;
            index  index.html index.htm;
        }

        # API 反向代理到 Green 后端
        location /api/ {
            proxy_pass http://backend_api;
            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;
        }

        # H5 端点反向代理到 Green 后端
        location /h5/ {
            proxy_pass http://backend_api;
            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;
        }

        # WebSocket 支持
        location /ws/ {
            proxy_pass http://backend_api;
            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_read_timeout 86400;
        }

        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   /usr/share/nginx/html;
        }
    }
}