limit_req_zone $binary_remote_addr zone=demo_login:10m rate=600r/m;

server {
  listen 80;
  server_name _;

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

  server_tokens off;

  gzip on;
  gzip_vary on;
  gzip_min_length 1024;
  gzip_types text/css application/javascript application/json image/svg+xml font/woff2;

  add_header X-Content-Type-Options "nosniff" always;
  add_header X-Frame-Options "DENY" always;
  add_header Referrer-Policy "strict-origin-when-cross-origin" always;
  add_header Permissions-Policy "camera=(), microphone=(), geolocation=(), payment=()" always;
  add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; frame-ancestors 'none'; base-uri 'self'; form-action 'self'" always;

  location = /api/v1/demo/login {
    limit_req zone=demo_login burst=100 nodelay;
    proxy_pass http://api:8000;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header X-Forwarded-Proto $scheme;
  }

  location = /api/v1/demo/reset {
    proxy_pass http://api:8000;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header X-Forwarded-Proto $scheme;
  }

  location /api/ {
    proxy_pass http://api:8000;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header X-Forwarded-Proto $scheme;
  }

  location /health {
    proxy_pass http://api:8000/health;
  }

  location / {
    expires -1;
    try_files $uri /index.html;
  }

  # Vite emits content-hashed filenames like "Bookings-BXgkh2jX.js" (hyphen + 8 chars,
  # base64url alphabet, one dot); anything under /assets/ matching that is immutable.
  location ~* "^/assets/.+-[A-Za-z0-9_-]{8,}\.(css|js|woff2|png|svg)$" {
    add_header Cache-Control "public, max-age=31536000, immutable" always;
    add_header X-Content-Type-Options "nosniff" always;
    try_files $uri =404;
  }
}