worker_processes auto;

events {
    worker_connections 1024;
}

http {
    include /etc/nginx/mime.types;
    default_type application/octet-stream;
    
    # 字符编码设置
    charset utf-8;
    charset_types text/html text/plain text/css application/javascript application/json text/xml;

    # 日志格式
    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;
    error_log /var/log/nginx/error.log warn;

    # 启用gzip压缩
    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;

    # 服务器配置
    server {
        listen 80;
        server_name localhost;
        root /usr/share/nginx/html;
        index index.html;
        
        # 强制UTF-8编码
        charset utf-8;
        add_header Content-Type "text/html; charset=utf-8" always;

        # 静态文件缓存
        location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
            expires 1y;
            add_header Cache-Control "public, immutable";
        }

        # Vue路由支持
        location / {
            try_files $uri $uri/ /index.html;
        }

        # API代理到后端
        location /api {
            proxy_pass http://backend:8080;
            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;
            
            # 超时设置
            proxy_connect_timeout 60s;
            proxy_send_timeout 60s;
            proxy_read_timeout 60s;
        }

        # WebSocket代理
        location /ws {
            proxy_pass http://backend:8080;
            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;
            
            # 超时设置
            proxy_connect_timeout 7d;
            proxy_send_timeout 7d;
            proxy_read_timeout 7d;
        }
    }
}