/**

* @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.dev/license

*/

import { readFile, writeFile } from 'node:fs/promises';

import assert from 'node:assert/strict';

import { ng } from '../../utils/process';

import { prependToFile, replaceInFile } from '../../utils/fs';

import { updateJsonFile, useSha } from '../../utils/project';

import { installWorkspacePackages } from '../../utils/packages';

import { executeBrowserTest } from '../../utils/puppeteer';

/**

* Compiled and base64 encoded WASM file for the following WAT:

* ```

* (module

* (import "./values" "getValue" (func $getvalue (result i32)))

* (export "multiply" (func $multiply))

* (export "subtract1" (func $subtract))

* (func $multiply (param i32 i32) (result i32)

* local.get 0

* local.get 1

* i32.mul

* )

* (func $subtract (param i32) (result i32)

* call $getvalue

* local.get 0

* i32.sub

* )

* )

* ```

*/

const importWasmBase64 =

'AGFzbQEAAAABEANgAAF/YAJ/fwF/YAF/AX8CFQEILi92YWx1ZXMIZ2V0VmFsdWUAAAMDAgECBxgCCG11bHRpcGx5AAEJc3VidHJhY3QxAAIKEQIHACAAIAFsCwcAEAAgAGsLAC8EbmFtZQEfAwAIZ2V0dmFsdWUBCG11bHRpcGx5AghzdWJ0cmFjdAIHAwAAAQACAA==';

const importWasmBytes = Buffer.from(importWasmBase64, 'base64');

export default async function () {

// Add WASM file to project

await writeFile('src/app/multiply.wasm', importWasmBytes);

await writeFile(

'src/app/multiply.wasm.d.ts',

'export declare function multiply(a: number, b: number): number; export declare function subtract1(a: number): number;',

);

// Add requested WASM import file

await writeFile('src/app/values.js', 'export function getValue() { return 100; }');

// Use WASM file in project

await prependToFile(

'src/app/app.ts',

`

import { multiply, subtract1 } from './multiply.wasm';

`,

);

await replaceInFile('src/app/app.ts', "'test-project'", 'multiply(4, 5) + subtract1(88)');

// Remove Zone.js from polyfills and make zoneless

await updateJsonFile('angular.json', (json) => {

// Remove bundle budgets to avoid a build error due to the expected increased output size

// of a JIT production build.

json.projects['test-project'].architect.build.options.polyfills = [];

});

await ng('build');

// Update E2E test to check for WASM execution

await executeBrowserTest({ expectedTitleText: 'Hello, 32' });

// Setup prerendering and build to test Node.js functionality

await ng('add', '@angular/ssr', '--skip-confirmation', '--skip-install');

await useSha();

await installWorkspacePackages();

await ng('build', '--configuration', 'development', '--prerender');

const content = await readFile('dist/test-project/browser/index.html', 'utf-8');

assert.match(content, /Hello, 32/);

}