# =============================================================================
# 企微智能IT支持服务台 — Nginx 配置（生产环境 — 2026-07-08 三端正常基准）
# =============================================================================
# 状态：坐席端 /itagent/ + 管理端 /itadmin/ + 员工端 /itdesk/ 三端正常
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;

    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;

    sendfile           on;
    tcp_nopush        on;
    tcp_nodelay       on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    client_max_body_size 50m;

    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 application/ld+json;

    upstream backend_api {
        server backend:8000;
    }

    server {
        listen 80;
        server_name itsupport.servyou.com.cn;
        location /.well-known/acme-challenge/ {
            root /usr/share/nginx/html;
        }
        location /h5/ {
            root /usr/share/nginx/html;
            index index.html;
            try_files $uri /h5/index.html;
        }
        location /h5/api/ {
            proxy_pass http://backend:8000/;
            proxy_http_version 1.1;
            proxy_redirect off;
            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 $scheme;
            proxy_set_header Connection "";
            proxy_connect_timeout 60s;
            proxy_send_timeout    300s;
            proxy_read_timeout    300s;
        }
        location / {
            return 301 https://$host$request_uri;
        }
    }

    server {
        listen 443 ssl;
        http2 on;
        server_name itsupport.servyou.com.cn;

        ssl_certificate     /etc/nginx/ssl/itsupport.servyou.com.cn.crt;
        ssl_certificate_key /etc/nginx/ssl/itsupport.servyou.com.cn.key;
        ssl_protocols       TLSv1.2 TLSv1.3;
        ssl_ciphers         HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers on;
        ssl_session_cache   shared:SSL:10m;
        ssl_session_timeout 1d;

        add_header X-Content-Type-Options "nosniff" always;
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
        add_header Referrer-Policy "strict-origin-when-cross-origin" always;
        server_tokens off;

        location = /health {
            access_log off;
            return 200 "healthy\n";
            add_header Content-Type text/plain;
        }

        # === 员工端 — H5 直接服务，不能 301 重定向（OAuth 回调依赖此路径）===
        location /itdesk/ {
            alias /usr/share/nginx/html/h5/;
            index index.html;
            try_files $uri $uri/ /index.html;
        }

        # === 坐席工作台 ===
        location /itagent/ {
            add_header Cache-Control "no-cache, no-store, must-revalidate" always;
            add_header Pragma "no-cache" always;
            add_header Expires "0" always;
            alias /usr/share/nginx/html/itagent/;
            index index.html;
            try_files $uri $uri/ /index.html;
        }

        # === 管理后台 ===
        location /itadmin/ {
            alias /usr/share/nginx/html/itadmin/;
            index index.html;
            try_files $uri /itadmin/index.html;
        }

        # === 统一入口（已弃用）===
        location /itportal/ {
            alias /usr/share/nginx/html/itportal/;
            index index.html;
            try_files $uri /itportal/index.html;
        }

        # === 后端 API — /api/ 前缀由 proxy_pass 尾部斜杠剥离 ===
        location /api/ {
            proxy_pass http://backend_api/;
            proxy_http_version 1.1;
            proxy_redirect off;
            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    300s;
            proxy_read_timeout    300s;
        }

        # === WebSocket — 不能带尾部斜杠 ===
        location /ws/ {
            access_log off;
            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 86400s;
        }

        # === H5 静态文件 ===
        location /h5/ {
            root /usr/share/nginx/html;
            index index.html;
            try_files $uri /h5/index.html;
        }

        # === H5 API 代理 ===
        location /h5/api/ {
            proxy_pass http://backend:8000/;
            proxy_http_version 1.1;
            proxy_redirect off;
            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    300s;
            proxy_read_timeout    300s;
        }

        # === 根路径 → H5 员工端 ===
        location = / {
            return 302 /h5/;
        }
    }
}