mergeInto(LibraryManager.library, {
  DownloadFile: function (path, objectName, callback, fallback) {
    var parsedPath = UTF8ToString(path);
    var parsedObjectName = UTF8ToString(objectName);
    var parsedCallback = UTF8ToString(callback);
    var parsedFallback = UTF8ToString(fallback);

    try {
      firebase
        .storage()
        .refFromURL(parsedPath)
        .getDownloadURL()
        .then(function (url) {
          unityInstance.Module.SendMessage(
            parsedObjectName,
            parsedCallback,
            JSON.stringify({
              url: url,
              // base64File: arrayBufferToBase64(data),
              storagePath: parsedPath,
            })
          );
        })
        .catch(function (error) {
          unityInstance.Module.SendMessage(
            parsedObjectName,
            parsedFallback,
            JSON.stringify(error, Object.getOwnPropertyNames(error))
          );
        });
    } catch (error) {
      unityInstance.Module.SendMessage(
        parsedObjectName,
        parsedFallback,
        JSON.stringify(error, Object.getOwnPropertyNames(error))
      );
    }

    function arrayBufferToBase64(buffer) {
      var binary = "";
      var bytes = new Uint8Array(buffer);
      var len = bytes.byteLength;
      for (var i = 0; i < len; i++) {
        binary += String.fromCharCode(bytes[i]);
      }
      return window.btoa(binary);
    }
  },
});