import type { Tree } from '@nrwl/devkit';
import {
  addDependenciesToPackageJson,
  generateFiles,
  joinPathFragments,
  readJson,
} from '@nrwl/devkit';

export function karmaGenerator(tree: Tree) {
  const packageJson = readJson(tree, 'package.json');
  if (packageJson.devDependencies['karma']) {
    return;
  }

  generateFiles(tree, joinPathFragments(__dirname, 'files'), '.', { tmpl: '' });
  return addDependenciesToPackageJson(
    tree,
    {},
    {
      karma: '~5.0.0',
      'karma-chrome-launcher': '~3.1.0',
      'karma-coverage-istanbul-reporter': '~3.0.2',
      'karma-jasmine': '~4.0.0',
      'karma-jasmine-html-reporter': '^1.5.0',
      'jasmine-core': '~3.6.0',
      'jasmine-spec-reporter': '~5.0.0',
      '@types/jasmine': '~3.5.0',
    }
  );
}

export default karmaGenerator;