/**
 * @license
 * Copyright Google Inc. 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
 */
import { getFileContent } from '../utility/test';

import { SchematicTestRunner, UnitTestTree } from "@angular-devkit/schematics/testing";
import { Schema as WorkspaceOptions } from "@schematics/angular/workspace/schema";
import { Schema as ApplicationOptions } from "@schematics/angular/application/schema";
import { Schema as PipeOptions } from '@schematics/angular/pipe/schema';


describe('Pipe Schematic', () => {
  const schematicRunner = new SchematicTestRunner(
    'schematics',
    require.resolve('../collection.json'),
  );
  const defaultOptions: PipeOptions = {
    name: 'product',
    spec: true,
    module: undefined,
    export: false,
    flat: true,
    project: 'example',
  };

  const workspaceOptions: WorkspaceOptions = {
    name: 'example',
    version: '6.0.0',
  };

  const appOptions: ApplicationOptions = {
    name: 'example',
    inlineStyle: false,
    inlineTemplate: false,
    routing: false,
    skipTests: false,
    skipPackageJson: false,
  };
  let appTree: UnitTestTree;
  beforeEach(() => {
    appTree = schematicRunner.runExternalSchematic("@schematics/angular", "workspace", workspaceOptions);
    appTree = schematicRunner.runExternalSchematic("@schematics/angular", "application",appOptions, appTree);
  });

  it('should create a pipe', () => {
    const options = { ...defaultOptions };
    // console.log(`options 52`, options);

    const tree = schematicRunner.runSchematic('pipe', { ...options, name: 'product/product' }, appTree);
    const files = tree.files;
    // expect(files).toContain('/example/src/app/product/product.pipe.spec.ts');
    expect(files).toContain('/example/src/app/product/product.pipe.ts');
    const moduleContent = getFileContent(tree, '/example/src/app/app.module.ts');
    expect(moduleContent).toMatch("import { ProductPipe } from './product/product.pipe'");
    expect(moduleContent).toMatch(/declarations:\s*\[[^\]]+?,\r?\n\s+ProductPipe\r?\n/m);
  });

  // it('should fail if specified module does not exist', () => {
  //   const options = { ...defaultOptions, module: '/example/src/app/app.module.ts', project: "example" };
  //   let thrownError: Error | null = null;
  //   try {
  //     schematicRunner.runSchematic('pipe', options, appTree);
  //   } catch (err) {
  //     thrownError = err;
  //   }
  //   expect(thrownError).toBeDefined();
  // });

  // it('should handle a path in the name and module options', () => {
  //   appTree = schematicRunner.runSchematic(
  //     'module',
  //     { name: 'admin/module', project: 'bar' },
  //     appTree,
  //   );

  //   const options = { ...defaultOptions, module: 'admin/module' };
  //   appTree = schematicRunner.runSchematic('pipe', options, appTree);

  //   const content = appTree.readContent('/example/src/app/admin/module/module.module.ts');
  //   expect(content).toMatch(/import { FooPipe } from '\.\.\/\.\.\/foo.pipe'/);
  // });

  it('should export the pipe', () => {
    const options = { ...defaultOptions, export: true };

    const tree = schematicRunner.runSchematic('pipe', options, appTree);
    const appModuleContent = getFileContent(tree, '/example/src/app/app.module.ts');
    expect(appModuleContent).toMatch(/exports: \[ProductPipe\]/);
  });

});