server {
    listen 8888;
    server_name 38.246.244.140;
    
    root /opt/designhub/frontend/dist;
    index index.html;
    
    access_log /opt/designhub/logs/nginx-access.log;
    error_log /opt/designhub/logs/nginx-error.log;
    
    # 前端路由
    location / {
        try_files $uri $uri/ /index.html;
        
        # 禁止缓存 HTML 文件
        if ($request_filename ~* .*\.(?:htm|html)$) {
            add_header Cache-Control "private, no-store, no-cache, must-revalidate, proxy-revalidate";
        }
    }
    
    # API 代理
    location /api/ {
        proxy_pass http://localhost:8080/api/;
        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_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        
        proxy_connect_timeout 600;
        proxy_send_timeout 600;
        proxy_read_timeout 600;
    }
    
    # 静态资源缓存（JS/CSS等）
    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
        expires 30d;
        add_header Cache-Control "public, immutable";
    }
    
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml;
    gzip_min_length 1000;
}