server {
    listen 8080;
    server_name _;
    server_tokens off;

    root /usr/share/nginx/html;
    index index.html;

    add_header X-Content-Type-Options "nosniff" always;
    add_header X-Frame-Options "DENY" always;
    add_header Referrer-Policy "no-referrer" always;
    add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;
    add_header Content-Security-Policy "default-src 'self'; connect-src 'self'; img-src 'self' data:; style-src 'self' 'unsafe-inline'; script-src 'self'; font-src 'self'; frame-ancestors 'none'; base-uri 'self'; form-action 'self'" always;

    location /api/ {
        proxy_pass http://backend:8080;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_connect_timeout 3s;
        proxy_read_timeout 15s;
        proxy_send_timeout 15s;
        client_max_body_size 64k;
    }

    location /integrations/ {
        proxy_pass http://backend:8080;
        proxy_http_version 1.1;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_connect_timeout 3s;
        proxy_read_timeout 30s;
        proxy_send_timeout 15s;
        client_max_body_size 64k;
    }

    location = /healthz {
        proxy_pass http://backend:8080/healthz;
        proxy_set_header Host $host;
        proxy_connect_timeout 2s;
        proxy_read_timeout 3s;
    }

    location / {
        try_files $uri $uri/ /index.html;
    }

    location ~* \.(?:js|css|svg|png|woff2)$ {
        expires 1y;
        add_header Cache-Control "public, immutable";
        try_files $uri =404;
    }
}