import assert from 'node:assert/strict';

import { join } from 'node:path';

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

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

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

export default async function () {

// setup temp collection

const genRoot = join('node_modules/fake-schematics/');

const fakeComponentSchematicDesc = 'Fake component schematic';

await createDir(genRoot);

await writeMultipleFiles({

[join(genRoot, 'package.json')]: JSON.stringify({

'schematics': './collection.json',

}),

[join(genRoot, 'collection.json')]: JSON.stringify({

'schematics': {

'fake': {

'description': 'Fake schematic',

'schema': './fake-schema.json',

'factory': './fake',

},

'component': {

'description': fakeComponentSchematicDesc,

'schema': './fake-schema.json',

'factory': './fake-component',

},

},

}),

[join(genRoot, 'fake-schema.json')]: JSON.stringify({

'$id': 'FakeSchema',

'title': 'Fake Schema',

'type': 'object',

}),

[join(genRoot, 'fake.js')]: `

exports.default = function (options) {

return (host, context) => {

console.log('fake schematic run.');

};

}

`,

[join(genRoot, 'fake-component.js')]: `

exports.default = function (options) {

return (host, context) => {

console.log('fake component schematic run.');

};

}

`,

});

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

json.cli ??= {};

json.cli.schematicCollections = ['fake-schematics', '@schematics/angular'];

});

// should display schematics for all schematics

const { stdout: stdout1 } = await ng('generate', '--help');

assert.match(stdout1, /ng generate component/);

assert.match(stdout1, /ng generate fake/);

// check registration order. Both schematics contain a component schematic verify that the first one wins.

assert.match(stdout1, new RegExp(fakeComponentSchematicDesc));

// Verify execution based on ordering

const { stdout: stdout2 } = await ng('generate', 'component');

assert.match(stdout2, /fake component schematic run/);

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

json.cli ??= {};

json.cli.schematicCollections = ['@schematics/angular', 'fake-schematics'];

});

const { stdout: stdout3 } = await ng('generate', '--help');

assert.match(stdout3, /ng generate component \[name\]/);

assert.doesNotMatch(stdout3, new RegExp(fakeComponentSchematicDesc));

// Verify execution based on ordering

const projectDir = join('src', 'app');

const componentDir = join(projectDir, 'test-component');

await ng('generate', 'component', 'test-component');

await expectFileToExist(componentDir);

}