/*!
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 *
 * Licensed 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 Configuration from 'sdc-app/config/Configuration.js';
import {statusEnum} from './VersionControllerConstants.js';


const VersionControllerUtils = {

	getCheckOutStatusKindByUserID(status, lockingUser) {
		let returnStatus;
		let isCheckedOut;
		let currentLoginUserID = Configuration.get('UserID');
		if (lockingUser) {
			isCheckedOut = currentLoginUserID === lockingUser;
			returnStatus = isCheckedOut ? status : statusEnum.LOCK_STATUS;
		} else {
			isCheckedOut = false;
			returnStatus = status;
		}

		return {
			status: returnStatus,
			isCheckedOut
		};
	},

	isCheckedOutByCurrentUser(resource) {
		let currentLoginUserID = Configuration.get('UserID');
		return resource.lockingUser !== undefined && resource.lockingUser === currentLoginUserID;
	},

	isReadOnly(resource) {
		const {version, viewableVersions = []} = resource;
		const latestVersion = viewableVersions[viewableVersions.length - 1];
		return version.id !== latestVersion.id || !VersionControllerUtils.isCheckedOutByCurrentUser(resource);
	}
};

export default VersionControllerUtils;