/**
 * @license
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import '../../../scripts/bundled-polymer.js';

import './gr-plugin-repo-command.js';
const $_documentContainer = document.createElement('template');

$_documentContainer.innerHTML = `<dom-module id="gr-repo-api">
  
</dom-module>`;

document.head.appendChild($_documentContainer.content);

/** @constructor */
export function GrRepoApi(plugin) {
  this._hook = null;
  this.plugin = plugin;
}

GrRepoApi.prototype._createHook = function(title) {
  this._hook = this.plugin.hook('repo-command').onAttached(element => {
    const pluginCommand =
          document.createElement('gr-plugin-repo-command');
    pluginCommand.title = title;
    element.appendChild(pluginCommand);
  });
};

GrRepoApi.prototype.createCommand = function(title, callback) {
  if (this._hook) {
    console.warn('Already set up.');
    return this._hook;
  }
  this._createHook(title);
  this._hook.onAttached(element => {
    if (callback(element.repoName, element.config) === false) {
      element.hidden = true;
    }
  });
  return this;
};

GrRepoApi.prototype.onTap = function(callback) {
  if (!this._hook) {
    console.warn('Call createCommand first.');
    return this;
  }
  this._hook.onAttached(element => {
    this.plugin.eventHelper(element).on('command-tap', callback);
  });
  return this;
};