user nginx;
worker_processes auto;
pid /run/nginx.pid;

events {
    worker_connections 1024;
    use epoll;
    multi_accept on;
}

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

    # 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"';

    # 访问日志
    access_log /var/log/nginx/access.log main;
    error_log /var/log/nginx/error.log warn;

    # 基本设置
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    client_max_body_size 100M;

    # Gzip压缩
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_types
        text/plain
        text/css
        text/xml
        text/javascript
        application/json
        application/javascript
        application/xml+rss
        application/atom+xml
        image/svg+xml;

    # 服务器配置
    server {
        listen 80;
        server_name _;
        root /var/www/html;
        index index.php index.html index.htm;

        # 安全头
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header X-Content-Type-Options "nosniff" always;

        # 主要location块
        location / {
            try_files $uri $uri/ /index.php?$query_string;
        }

        # PHP文件处理
        location ~ \.php$ {
            try_files $uri =404;
            fastcgi_split_path_info ^(.+\.php)(/.+)$;
            fastcgi_pass 127.0.0.1:9000;
            fastcgi_index index.php;
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            include fastcgi_params;
            
            # PHP-FPM超时设置
            fastcgi_connect_timeout 60s;
            fastcgi_send_timeout 60s;
            fastcgi_read_timeout 60s;
        }

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

        # 隐藏敏感文件
        location ~ /\. {
            deny all;
        }

        location ~ ~$ {
            deny all;
        }

        # 健康检查端点
        location /health {
            access_log off;
            return 200 "healthy\n";
            add_header Content-Type text/plain;
        }
    }
}