'use strict';
/**
 * https://bugs.webkit.org/show_bug.cgi?id=226547
 * Safari has a horrible bug where IDB requests can hang while the browser is starting up.
 * The only solution is to keep nudging it until it's awake.
 * This probably creates garbage, but garbage is better than totally failing.
 */

function idbReady() {
  var isSafari = !navigator.userAgentData && /Safari\//.test(navigator.userAgent) && !/Chrom(e|ium)\//.test(navigator.userAgent); // No point putting other browsers or older versions of Safari through this mess.

  if (!isSafari || !indexedDB.databases) return Promise.resolve();
  var intervalId;
  return new Promise(function (resolve) {
    var tryIdb = function tryIdb() {
      return indexedDB.databases().finally(resolve);
    };

    intervalId = setInterval(tryIdb, 100);
    tryIdb();
  }).finally(function () {
    return clearInterval(intervalId);
  });
}

module.exports = idbReady;