# /etc/nginx/sites-available/sarana-gemilang
server {
    listen 80;
    server_name finance.saranagemilang.co.id;  # ← GANTI domain
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    server_name finance.saranagemilang.co.id;  # ← GANTI domain

    # SSL (pakai Let's Encrypt / Certbot)
    ssl_certificate     /etc/letsencrypt/live/finance.saranagemilang.co.id/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/finance.saranagemilang.co.id/privkey.pem;
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;

    # Security headers (Helmet juga handle, ini double-defense)
    add_header X-Frame-Options "DENY" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;

    # Frontend (static build dari Vite)
    root /var/www/sarana-gemilang/current/dist;
    index index.html;

    # API → proxy ke backend Fastify
    location /api/ {
        proxy_pass         http://localhost:3001;
        proxy_http_version 1.1;
        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_connect_timeout 5s;
        proxy_send_timeout    60s;
        proxy_read_timeout    60s;
    }

    # Health check passthrough (untuk monitoring eksternal)
    location ~ ^/health(/.*)?$ {
        proxy_pass http://localhost:3001;
        access_log off;
    }

    # Frontend SPA fallback (React Router)
    location / {
        try_files $uri $uri/ /index.html;

        # Cache static assets aggressive
        location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2?|ttf)$ {
            expires 1y;
            add_header Cache-Control "public, immutable";
        }

        # HTML tidak di-cache (supaya update terlihat)
        location ~* \.html$ {
            expires -1;
            add_header Cache-Control "no-store, no-cache, must-revalidate";
        }
    }

    # Gzip compression
    gzip on;
    gzip_vary on;
    gzip_min_length 1024;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    # Body limit (sama dengan Fastify)
    client_max_body_size 5M;

    # Log
    access_log /var/log/nginx/sarana-gemilang.access.log;
    error_log  /var/log/nginx/sarana-gemilang.error.log warn;
}