/**
 * 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 { Browser, BrowserBase } from '../../browser';
import { BrowserContextBase } from '../../browserContext';
import { Events } from '../../events';
import * as types from '../../types';
import { BrowserChannel, BrowserContextChannel, BrowserInitializer, CDPSessionChannel, Binary } from '../channels';
import { BrowserContextDispatcher } from './browserContextDispatcher';
import { CDPSessionDispatcher } from './cdpSessionDispatcher';
import { Dispatcher, DispatcherScope } from './dispatcher';
import { CRBrowser } from '../../chromium/crBrowser';
import { PageDispatcher } from './pageDispatcher';

export class BrowserDispatcher extends Dispatcher<Browser, BrowserInitializer> implements BrowserChannel {
  constructor(scope: DispatcherScope, browser: BrowserBase) {
    super(scope, browser, 'browser', {}, true);
    browser.on(Events.Browser.Disconnected, () => {
      this._dispatchEvent('close');
      this._scope.dispose();
    });
  }

  async newContext(params: types.BrowserContextOptions): Promise<BrowserContextChannel> {
    return new BrowserContextDispatcher(this._scope, await this._object.newContext(params) as BrowserContextBase);
  }

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

  async crNewBrowserCDPSession(): Promise<CDPSessionChannel> {
    const crBrowser = this._object as CRBrowser;
    return new CDPSessionDispatcher(this._scope, await crBrowser.newBrowserCDPSession());
  }

  async crStartTracing(params: { page?: PageDispatcher, path?: string, screenshots?: boolean, categories?: string[] }): Promise<void> {
    const crBrowser = this._object as CRBrowser;
    await crBrowser.startTracing(params.page ? params.page._object : undefined, params);
  }

  async crStopTracing(): Promise<Binary> {
    const crBrowser = this._object as CRBrowser;
    const buffer = await crBrowser.stopTracing();
    return buffer.toString('base64');
  }
}