server {
    listen 80;
    server_name budget.b4l.co.th;
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    server_name budget.b4l.co.th;

    ssl_certificate     /etc/letsencrypt/live/budget.b4l.co.th/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/budget.b4l.co.th/privkey.pem;

    # Security headers
    add_header X-Frame-Options DENY;
    add_header X-Content-Type-Options nosniff;
    add_header Referrer-Policy strict-origin-when-cross-origin;

    # Compression
    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml;
    gzip_min_length 1000;

    location / {
        proxy_pass http://127.0.0.1:3000;
        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;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Host $host;
        proxy_cache_bypass $http_upgrade;
    }

    # Cache immutable static assets
    location /_app/immutable/ {
        proxy_pass http://127.0.0.1:3000;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }
}