# 活牛采购系统Nginx配置文件
# 此配置文件用于配置Nginx作为反向代理服务器，提供HTTPS访问

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# 加载动态模块
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 1024;
}

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

    access_log  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 2048;

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

    # 开启gzip压缩
    gzip on;
    gzip_disable "msie6";
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    # 虚拟主机配置 - 活牛采购系统后端API
    server {
        # 监听HTTP端口，重定向到HTTPS
        listen 80;
        server_name wapi.yunniushi.cn;
        return 301 https://$server_name$request_uri;
    }

    server {
        # 监听HTTPS端口
        listen 443 ssl http2;
        server_name wapi.yunniushi.cn;

        # SSL证书配置
        ssl_certificate /etc/nginx/ssl/wapi.yunniushi.cn/fullchain.pem;
        ssl_certificate_key /etc/nginx/ssl/wapi.yunniushi.cn/privkey.pem;
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers off;
        ssl_session_timeout 1d;
        ssl_session_cache shared:SSL:10m;
        ssl_session_tickets off;

        # HSTS配置
        add_header Strict-Transport-Security "max-age=63072000" always;

        # 安全头部配置
        add_header X-Frame-Options DENY;
        add_header X-Content-Type-Options nosniff;
        add_header X-XSS-Protection "1; mode=block";

        # 反向代理配置
        location / {
            # 代理到Node.js后端服务
            proxy_pass http://localhost:4330;
            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_cache_bypass $http_upgrade;

            # 增加代理超时
            proxy_connect_timeout 600s;
            proxy_send_timeout 600s;
            proxy_read_timeout 600s;
        }

        # 静态文件服务配置（如果需要）
        # location /public {
        #     alias /data/nodejs/yunniushi/public;
        #     expires 30d;
        # }

        # 健康检查端点
        location /health {
            proxy_pass http://localhost:4330;
            proxy_http_version 1.1;
            proxy_set_header Host $host;
            access_log off;
        }

        # API文档端点
        location /api/docs {
            proxy_pass http://localhost:4330;
            proxy_http_version 1.1;
            proxy_set_header Host $host;
        }

        # 错误页面配置
        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
            root /usr/share/nginx/html;
        }
    }

    # 加载其他配置文件
    include /etc/nginx/conf.d/*.conf;
}