/**

* @license

* Copyright 2019 Google LLC. All Rights Reserved.

* 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 * as firebase from './firebase';

import {BenchmarkLog} from './types';

function nextTick(): Promise<void> {

return new Promise(resolve => setTimeout(resolve));

}

// tslint:disable-next-line:no-any

export async function benchmarkAndLog<T extends any>(

name: string, benchmark: (size: T) => Promise<number>, sizes: T[],

sizeToParams: (size: T) => string, runCount = 100,

warmupRunCount = 1): Promise<void> {

const logs: BenchmarkLog[] = [];

for (let i = 0; i < sizes.length; i++) {

const size = sizes[i];

let averageTimeMs = 0;

let result;

for (let j = 0; j < warmupRunCount; j++) {

result = await benchmark(size);

}

for (let j = 0; j < runCount; j++) {

result = await benchmark(size);

averageTimeMs += result / runCount;

await nextTick();

}

const benchmarkLog:

BenchmarkLog = {params: sizeToParams(size), averageTimeMs};

logs.push(benchmarkLog);

}

await firebase.logBenchmarkRun(name, logs);

}