# # Redirect HTTP to HTTPS
server {
    listen 80;
    listen [::]:80;
    server_name umami.novicelab.io;
    
    # ACME challenge for Let's Encrypt certificate renewal
    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }
    
    location / {
        return 301 https://$server_name$request_uri;
    }
}

server {
    listen 443 ssl; #http2;
    listen [::]:443 ssl; # http2;
    server_name umami.novicelab.io;

    # SSL Certificate paths
    ssl_certificate /etc/letsencrypt/live/novicelab.io/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/novicelab.io/privkey.pem;
    
    # Trusted certificate for OCSP stapling
    # ssl_trusted_certificate /etc/nginx/ssl/chain.pem;

    # Cloudflare Origin CA certificate for client verification
    # Cloudflare Origin CA for authenticated origin pulls (optional)
    # Only enable if you want to restrict to Cloudflare only
    # ssl_client_certificate /etc/nginx/ssl/client-cert.pem;
    # ssl_verify_client on;

    # SSL Protocol - TLS 1.2 and 1.3 only
    ssl_protocols TLSv1.2 TLSv1.3;
    
    # Cipher suites (prioritize TLS 1.3, secure TLS 1.2 fallback)
    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:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384';
    ssl_prefer_server_ciphers off;

    # SSL session configuration
    ssl_session_timeout 1d;
    ssl_session_cache shared:SSL:10m;
    ssl_session_tickets off;

    # OCSP Stapling
    # ssl_stapling on;
    # ssl_stapling_verify on;
    resolver 127.0.0.11 8.8.8.8 8.8.4.4 valid=300s;
    resolver_timeout 5s;

    # Security Headers
    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;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Content-Security-Policy "default-src 'self' https: data: 'unsafe-inline' 'unsafe-eval';" always;

    # Diffie-Hellman parameter for DHE ciphersuites
    # ssl_dhparam /etc/nginx/ssl/dhparam.pem;

    # Logging
    access_log /var/log/nginx/umami.novicelab.io_access.log;
    error_log /var/log/nginx/umami.novicelab.io_error.log;

    # Root and index
    # root /var/www/html;
    # index index.html index.htm;

    # include /etc/letsencrypt/options-ssl-nginx.conf;
    set $umami_backend umami:3000; 

    location / {
        # proxy_pass http://10.0.0.251:9200/;
        proxy_pass http://$umami_backend;
        
        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 https; # $scheme;
        proxy_set_header X-Forwarded-Host $host;

        proxy_buffering off;
        proxy_set_header Referer $http_referer;
        proxy_redirect off;

        proxy_set_header Cookie $http_cookie;
    }
}