/**
 * Copyright (c) Microsoft Corporation.
 *
 * 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 { Dispatcher, DispatcherScope, lookupDispatcher } from './dispatcher';
import { Electron, ElectronApplication, ElectronEvents } from '../../server/electron';
import { ElectronApplicationChannel, ElectronApplicationInitializer, PageChannel, JSHandleChannel, ElectronInitializer, ElectronChannel, ElectronLaunchOptions } from '../channels';
import { BrowserContextDispatcher } from './browserContextDispatcher';
import { BrowserContextBase } from '../../browserContext';
import { Page } from '../../page';
import { PageDispatcher } from './pageDispatcher';
import { parseArgument } from './jsHandleDispatcher';
import { createHandle } from './elementHandlerDispatcher';

export class ElectronDispatcher extends Dispatcher<Electron, ElectronInitializer> implements ElectronChannel {
  constructor(scope: DispatcherScope, electron: Electron) {
    super(scope, electron, 'electron', {}, true);
  }

  async launch(params: { executablePath: string } & ElectronLaunchOptions): Promise<ElectronApplicationChannel> {
    const electronApplication = await this._object.launch(params.executablePath, params);
    return new ElectronApplicationDispatcher(this._scope, electronApplication);
  }
}

export class ElectronApplicationDispatcher extends Dispatcher<ElectronApplication, ElectronApplicationInitializer> implements ElectronApplicationChannel {
  constructor(scope: DispatcherScope, electronApplication: ElectronApplication) {
    super(scope, electronApplication, 'electronApplication', {
      context: new BrowserContextDispatcher(scope, electronApplication.context() as BrowserContextBase),
    });

    electronApplication.on(ElectronEvents.ElectronApplication.Close, () => this._dispatchEvent('close'));
    electronApplication.on(ElectronEvents.ElectronApplication.Window, (page: Page) => this._dispatchEvent('window', lookupDispatcher<PageDispatcher>(page)));
  }

  async newBrowserWindow(params: { arg: any }): Promise<PageChannel> {
    return lookupDispatcher<PageChannel>(await this._object.newBrowserWindow(parseArgument(params.arg)));
  }

  async evaluateExpression(params: { expression: string, isFunction: boolean, arg: any }): Promise<any> {
    const handle = this._object._nodeElectronHandle!;
    return handle._evaluateExpression(params.expression, params.isFunction, true /* returnByValue */, parseArgument(params.arg));
  }

  async evaluateExpressionHandle(params: { expression: string, isFunction: boolean, arg: any}): Promise<JSHandleChannel> {
    const handle = this._object._nodeElectronHandle!;
    const result = await handle._evaluateExpression(params.expression, params.isFunction, false /* returnByValue */, parseArgument(params.arg));
    return createHandle(this._scope, result);
  }

  async close(): Promise<void> {
    await this._object.close();
  }
}