server {
    listen 10084;
    server_name localhost;  # 如果有域名，替换为您的域名
    
    # 网站根目录，请根据实际情况修改路径
    root /var/www/threejs-digital-steelmill/dist;
    index index.html;
    
    # 字符集
    charset utf-8;
    
    # 访问日志
    access_log /var/log/nginx/steelmill_access.log;
    error_log /var/log/nginx/steelmill_error.log;
    
    # gzip 压缩配置
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/json
        application/javascript
        application/xml+rss
        application/rss+xml
        font/truetype
        font/opentype
        application/vnd.ms-fontobject
        image/svg+xml;
    
    # 静态资源缓存配置
    location ~* \.(jpg|jpeg|png|gif|ico|css|js|svg|woff|woff2|ttf|eot)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
    }
    
    # 3D 模型文件缓存
    location ~* \.(glb|gltf|bin|hdr)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        access_log off;
    }
    
    # WebAssembly 文件配置
    location ~* \.wasm$ {
        types {
            application/wasm wasm;
        }
        expires 1y;
        add_header Cache-Control "public, immutable";
    }
    
    # SPA 路由支持 - 所有路由都返回 index.html
    location / {
        try_files $uri $uri/ /index.html;
        add_header Cache-Control "no-cache";
    }
    
    # 安全头部配置
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    
    # 禁止访问隐藏文件
    location ~ /\. {
        deny all;
        access_log off;
        log_not_found off;
    }
}