import {join} from 'path';

import {readdirSync} from 'fs';

import {expectFileToExist, expectFileToMatch} from '../../utils/fs';

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

import {expectGitToBeClean} from '../../utils/git';

import {getGlobalVariable} from '../../utils/env';

export default function() {

// TODO(architect): Delete this test. It is now in devkit/build-angular.

// Skip this in ejected tests.

const ejected = getGlobalVariable('argv').eject;

// Can't use the `ng` helper because somewhere the environment gets

// stuck to the first build done

return ng('build', '--prod')

.then(() => expectFileToExist(join(process.cwd(), 'dist')))

// Check for cache busting hash script src

.then(() => expectFileToMatch('dist/test-project/index.html', /main\.[0-9a-f]{20}\.js/))

.then(() => expectFileToMatch('dist/test-project/index.html', /styles\.[0-9a-f]{20}\.css/))

.then(() => expectFileToMatch('dist/test-project/3rdpartylicenses.txt', /MIT/))

// Defaults to AoT

.then(() => {

const main = readdirSync('./dist/test-project').find(name => !!name.match(/main.[a-z0-9]+\.js/));

expectFileToMatch(`dist/test-project/${main}`, /bootstrapModuleFactory\(/);

})

// Check that the process didn't change local files.

.then(() => !ejected && expectGitToBeClean());

}