server {
    listen 80;
    server_name writeonce.de www.writeonce.de;
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    server_name writeonce.de www.writeonce.de;

    ssl_certificate /etc/letsencrypt/live/writeonce.de/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/writeonce.de/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;

    # HSTS
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;

    location / {
        proxy_pass http://127.0.0.1:3000;
        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;

        # Keep connections open for database subscriptions
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_read_timeout 86400s;
        proxy_send_timeout 86400s;
    }

    # Static assets — let nginx serve directly for better caching
    location /static/ {
        alias /opt/writeonce/static/;
        expires 1y;
        add_header Cache-Control "public, immutable";
    }
}