intersection-filter.js

'use strict';

const _ = require('lodash');

const FilesFilter = require('./index');

module.exports = class IntersectionFilter extends FilesFilter {
    constructor(files) {
        super();

        this._files = files;
    }

    filter(filesToFilter) {
        if (!_.isEmpty(filesToFilter)) {
            return _.intersection(filesToFilter, this._files);
        }

        return this._files;
    }
};