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

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

http {
    resolver 127.0.0.11 valid=30s ipv6=off;

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

    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;

    server_tokens off;
    client_max_body_size 100M;
    
    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    
    limit_req_zone $binary_remote_addr zone=general:10m rate=100r/s;

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

    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+text text/javascript;

    upstream gitea_app {
        server gitea:3000;
    }

    upstream jenkins_app {
        server jenkins:8080;
    }

    # Novalon 主站 - 静态文件服务
    server {
        listen 80;
        server_name novalon.cn www.novalon.cn;
        
        location /.well-known/acme-challenge/ {
            root /var/www/certbot;
        }

        location / {
            return 301 https://www.novalon.cn$request_uri;
        }
    }

    server {
        listen 443 ssl http2;
        server_name novalon.cn www.novalon.cn;

        ssl_certificate /etc/nginx/ssl/fullchain.pem;
        ssl_certificate_key /etc/nginx/ssl/privkey.pem;
        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305;
        ssl_prefer_server_ciphers off;
        ssl_session_cache shared:SSL:10m;
        ssl_session_timeout 1d;
        
        add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header X-XSS-Protection "1; mode=block" always;

        # 静态文件根目录
        root /var/www/novalon;
        index index.html;

        # 静态资源长期缓存
        location /_next/static/ {
            expires 1y;
            add_header Cache-Control "public, max-age=31536000, immutable";
            add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
            add_header X-Frame-Options "SAMEORIGIN" always;
            add_header X-Content-Type-Options "nosniff" always;
            try_files $uri =404;
        }

        # 字体文件缓存
        location ~* \.(ttf|woff|woff2|eot)$ {
            expires 1y;
            add_header Cache-Control "public, max-age=31536000, immutable";
            add_header Access-Control-Allow-Origin "*";
            add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
            try_files $uri =404;
        }

        # 图片文件缓存
        location ~* \.(svg|jpg|jpeg|png|gif|webp|avif|ico)$ {
            expires 1y;
            add_header Cache-Control "public, max-age=31536000, immutable";
            add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;
            try_files $uri =404;
        }

        # Let's Encrypt ACME challenge
        location /.well-known/acme-challenge/ {
            root /var/www/certbot;
        }

        # Next.js 静态导出的页面路由
        location / {
            limit_req zone=general burst=20 nodelay;
            try_files $uri $uri.html $uri/ /404.html;
        }

        # 自定义 404 页面
        error_page 404 /404.html;

        # 优化文件传输
        sendfile on;
        tcp_nopush on;
        tcp_nodelay on;
    }

    include /etc/nginx/conf.d/*.conf;
}