'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = validateArgFn;

var _arg_type = require('./arg_type');

var _arg_type2 = _interopRequireDefault(_arg_type);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/*
 * 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.
 */

function validateArgFn(functionDef) {
  return function validateArg(value, name, argDef) {
    const type = (0, _arg_type2.default)(value);
    const required = argDef.types;
    const multi = argDef.multi;
    const isCorrectType = function () {
      // If argument is not allow to be specified multiple times, we're dealing with a plain value for type
      if (!multi) return _lodash2.default.contains(required, type);
      // If it is, we'll get an array for type
      return _lodash2.default.difference(type, required).length === 0;
    }();

    if (isCorrectType) return true;else return false;

    if (!isCorrectType) {
      throw new Error(functionDef.name + '(' + name + ') must be one of ' + JSON.stringify(required) + '. Got: ' + type);
    }
  };
}
module.exports = exports['default'];