/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import fs from 'fs';
import path from 'path';

export default function checkPlugins(grunt) {
  grunt.registerTask('checkPlugins', 'Checks for plugins which may disrupt tests', function checkPlugins() {
    const done = this.async();
    const pluginsDir = path.resolve('./plugins/');

    fs.readdir(pluginsDir, (err, files) => {
      if (!files) {
        return done();
      }

      const plugins = files.filter(file => {
        return fs.statSync(path.join(pluginsDir, file)).isDirectory();
      });

      if (plugins.length) {
        grunt.log.error('===================================================================================================');
        plugins.forEach(plugin => {
          grunt.log.error(`The ${plugin} plugin may disrupt the test process. Consider removing it and re-running your tests.`);
        });
        grunt.log.error('===================================================================================================');
      }

      done();
    });
  });
}