/**
 * Open a URL in the device's real browser.
 *
 * In a normal mobile/desktop browser this is just `window.open(_blank)`. Inside
 * the Android companion app the page runs in a WebView where `window.open` is
 * unreliable (noopener/noreferrer can suppress onCreateWindow), so the native
 * shell injects a `window.ArchipelagoNative.openExternal(url)` bridge that hands
 * the URL to an ACTION_VIEW intent. We prefer the bridge when present and fall
 * back to `window.open` otherwise — so the working mobile-browser path is
 * untouched.
 */
interface ArchipelagoNativeBridge {
  openExternal?: (url: string) => void
  openInApp?: (url: string) => void
}

function nativeBridge(): ArchipelagoNativeBridge | undefined {
  return (window as unknown as { ArchipelagoNative?: ArchipelagoNativeBridge }).ArchipelagoNative
}

export function openExternalUrl(url: string): void {
  if (!url) return
  const native = nativeBridge()
  if (native && typeof native.openExternal === 'function') {
    native.openExternal(url)
    return
  }
  window.open(url, '_blank', 'noopener,noreferrer')
}

/**
 * Launch an app that can't be embedded in an iframe (X-Frame-Options) from a
 * mobile surface — with NO "this app opens in a tab" interstitial.
 *
 * - Android companion: hand it to the in-app WebView (`openInApp`) so it stays
 *   inside Archipelago with the native back/forward/reload/close controls.
 * - Plain mobile browser (PWA): open directly in a new browser tab.
 */
export function openInAppOrNewTab(url: string): void {
  if (!url) return
  const native = nativeBridge()
  if (native && typeof native.openInApp === 'function') {
    native.openInApp(url)
    return
  }
  window.open(url, '_blank', 'noopener,noreferrer')
}