import * as Snap from '@alexlur/snap';
import 'es6-shim'; // For non-ES6 browsers.

Snap.init({
  // Preload can be triggered either when users clicks the link, or
  // hover it. For mobile users it would be a touch event.
  preloadMode?: 'mousedown' | 'mouseover' [default],

  // Preload will start after the period of delay (miliseconds) have
  // passed. Only available in mousedown mode.
  delay?: 0 [default],

  // In static mode, caches do not expire and users will always see
  // the same content as long as they stay in the page.
  static?: false [default]
});

Snap.on('receive', function (url: string, body: HTMLBodyElement, title: string) {
  // Modify the body and title here and return an object with any
  // combination of body and title.
  return { body?, title? };
});

Snap.on('fetch', function (url: string) {
  // Triggered a fetch event happens.
});

Snap.on('change', function (isInitialLoad: boolean) {
  // Triggered when Snap loads the cached page.
});