/**

* @license

* Copyright Google LLC All Rights Reserved.

*

* Use of this source code is governed by an MIT-style license that can be

* found in the LICENSE file at https://angular.io/license

*/

/* tslint:disable:no-console */

urlParamsToForm();

export function getIntParameter(name: string) {

return parseInt(getStringParameter(name), 10);

}

export function getStringParameter(name: string) {

const els = document.querySelectorAll(`input[name="${name}"]`);

let value: any;

let el: any;

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

el = els[i];

const type = el.type;

if ((type != 'radio' && type != 'checkbox') || el.checked) {

value = el.value;

break;

}

}

if (value == null) {

throw new Error(`Could not find and input field with name ${name}`);

}

return value;

}

export function bindAction(selector: string, callback: () => void) {

document.querySelector(selector)!.addEventListener('click', callback);

}

export function profile(create: () => void, destroy: () => void, name: string) {

return function () {

// 'console.profile' is experimental and was removed from DOM lib in TS 3.9

(window.console as any).profile(name);

const noOfRuns = 150;

let durations: number[] = [];

let count = 0;

while (count++ < noOfRuns) {

const start = window.performance.now();

create();

const end = window.performance.now() - start;

durations.push(end);

destroy();

}

// 'console.profileEnd' is experimental and was removed from DOM lib in TS 3.9

(window.console as any).profileEnd();

reportProfileResults(durations, noOfRuns);

};

}

function reportProfileResults(durations: number[], count: number) {

const totalDuration = durations.reduce((soFar: number, duration: number) => soFar + duration, 0);

const avgDuration = (totalDuration / count).toFixed(2);

const minDuration = durations

.reduce((soFar: number, duration: number) => Math.min(soFar, duration), Number.MAX_SAFE_INTEGER)

.toFixed(2);

window.console.log(

`Iterations: ${count}; cold time: ${durations[0].toFixed(

2,

)} ms; average time: ${avgDuration} ms / iteration; best time: ${minDuration} ms`,

);

}

// helper script that will read out the url parameters

// and store them in appropriate form fields on the page

function urlParamsToForm() {

const regex = /(\w+)=(\w+)/g;

const search = decodeURIComponent(location.search);

let match: any[] | null;

while ((match = regex.exec(search))) {

const name = match[1];

const value = match[2];

const els = document.querySelectorAll('input[name="' + name + '"]');

let el: any;

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

el = els[i];

if (el.type === 'radio' || el.type === 'checkbox') {

el.checked = el.value === value;

} else {

el.value = value;

}

}

}

}