/**
 * MIT License
 *
 * Copyright (c) 2020-present, Elastic NV
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */ import { Driver } from '../common_types' ; const supportedMetrics = new Set < string > ( [ 'Timestamp' , 'Documents' , 'Frames' , 'JSEventListeners' , 'Nodes' , 'LayoutCount' , 'RecalcStyleCount' , 'LayoutDuration' , 'RecalcStyleDuration' , 'ScriptDuration' , 'TaskDuration' , 'JSHeapUsedSize' , 'JSHeapTotalSize' , ] ) ; export interface PageMetrics { Timestamp ? : number ; Documents ? : number ; Frames ? : number ; JSEventListeners ? : number ; Nodes ? : number ; LayoutCount ? : number ; RecalcStyleCount ? : number ; LayoutDuration ? : number ; RecalcStyleDuration ? : number ; ScriptDuration ? : number ; TaskDuration ? : number ; JSHeapUsedSize ? : number ; JSHeapTotalSize ? : number ; } export class PerformanceManager { constructor ( private driver ) { } async start ( ) { await this . driver . client . send ( 'Performance.enable' ) ; } async stop ( ) { await this . driver . client . send ( 'Performance.disable' ) ; } async getMetrics ( ) { const { metrics } = await this . driver . client . send ( 'Performance.getMetrics' ) ; return this . buildMetricsObject ( metrics ) ; } private buildMetricsObject ( metrics = [ ] ) { const result = { } ; for ( const metric of metrics ) { if ( supportedMetrics . has ( metric . name ) ) result [ metric . name ] = metric . value ; } return result ; } }