import { task } from 'gulp';
import * as fs from 'fs';

import { argv } from 'yargs';

import { prepareWebpackConfig, runWebpack } from './utils';
import config from '../../../config';

const { paths } = config;

const prefix = (argv.prefix as string) || '';
const packageName = config.package;

/**
 * Lists runtime dependencies (by crawling the actual code) of the requested Fluent UI package.
 */
task('test:dependencies:list', cb => {
  const tempOutputFilePath = paths.base('test.js');

  const webpackConfig = prepareWebpackConfig({
    packageName,
    outputFilePath: tempOutputFilePath,
    onDependencyPackage: (packageName, packageVersion) => {
      console.log(`${prefix}${packageName}@${packageVersion}`);
    },
  });

  runWebpack(webpackConfig, () => {
    if (fs.existsSync(tempOutputFilePath)) {
      fs.unlinkSync(tempOutputFilePath);
    }

    cb();
  });
});