/*******************************************************************************
 * Copyright (c) 2013 GigaSpaces Technologies Ltd. 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.
 *******************************************************************************/
package org.cloudifysource.dsl.internal.validators;

import org.apache.commons.lang.StringUtils;
import org.cloudifysource.domain.DSLValidation;
import org.cloudifysource.domain.cloud.CloudProvider;
import org.cloudifysource.dsl.internal.DSLValidationContext;
import org.cloudifysource.dsl.internal.DSLValidationException;

//import com.j_spaces.kernel.PlatformVersion;

/**
 * 
 * @author adaml
 *
 */
public class CloudProviderValidator implements DSLValidator {

	private CloudProvider entity;

	@Override
	public void setDSLEntity(final Object dslEntity) {
		this.entity = (CloudProvider) dslEntity;
		
	}
	
	@DSLValidation
	public void validateProviderName(final DSLValidationContext validationContext)
			throws DSLValidationException {

		if (StringUtils.isBlank(entity.getProvider())) {
			throw new DSLValidationException("Provider cannot be empty");
		}
	}

//	/**
//	 * This is a unique situation: we need a dependency on openspaces to generate the 
//	 * cloudify URL. in this case we assign the URL in this validation method.
//	 * 
//	 */
//	@DSLValidation
//	public void validateCloudifyUrl(final DSLValidationContext validationContext)
//			throws DSLValidationException {
//
////		if (StringUtils.isEmpty(entity.getCloudifyUrl())) {
////			initCloudifyUrlAccordingToPlatformVersion();
////		}
//		this.entity.setCloudifyUrl("");
//
//		try {
//	        new URI(entity.getCloudifyUrl());
//		} catch (URISyntaxException e) {
//			throw new DSLValidationException("Invalid cloudify url: \"" + entity.getCloudifyUrl() + "\"");
//		}
//
//		//TODO request "head" to see if the url is accessible. If not - warning.
//	}

	@DSLValidation
	public void validateNumberOfManagementMachines(final DSLValidationContext validationContext)
			throws DSLValidationException {

		if (entity.getNumberOfManagementMachines() != 1 && entity.getNumberOfManagementMachines() != 2) {
			throw new DSLValidationException("Invalid numberOfManagementMachines: \"" + entity.getNumberOfManagementMachines()
					+ "\". Valid values are 1 or 2");
		}

		//TODO request "head" to see if the url is accessible. If not - warning.
	}

	@DSLValidation
	public void validateSshLoggingLevel(final DSLValidationContext validationContext)
			throws DSLValidationException {

		if (!entity.getSshLoggingLevel().matches("INFO|FINE|FINER|FINEST|WARNING|DEBUG")) {
			throw new DSLValidationException("sshLoggingLevel \"" + entity.getSshLoggingLevel() + "\" is invalid, "
					+ "supported values are: INFO, FINE, FINER, FINEST, WARNING, DEBUG");
		}
	}

	
//	private void initCloudifyUrlAccordingToPlatformVersion() {
//		String cloudifyUrlPattern;
//		String productUri;
//		String editionUrlVariable;
//
//		if (PlatformVersion.getEdition().equalsIgnoreCase(PlatformVersion.EDITION_CLOUDIFY)) {
//			productUri = "org/cloudifysource";
//			editionUrlVariable = "cloudify";
//			cloudifyUrlPattern = "http://repository.cloudifysource.org/"
//					+ "%s/" + OutputVersion.computeCloudifyVersion() + "/gigaspaces-%s-"
//					+ PlatformVersion.getVersion() + "-" + PlatformVersion.getMilestone()
//					+ "-b" + PlatformVersion.getBuildNumber();
//			entity.setCloudifyUrl(String.format(cloudifyUrlPattern, productUri, editionUrlVariable));
//		} else {
//			productUri = "com/gigaspaces/xap";
//			editionUrlVariable = "xap-premium";
//			cloudifyUrlPattern = "http://repository.cloudifysource.org/"
//					+ "%s/" + OutputVersion.computeXapVersion() + "/gigaspaces-%s-"
//					+ PlatformVersion.getVersion() + "-" + PlatformVersion.getMilestone()
//					+ "-b" + PlatformVersion.getBuildNumber();
//			entity.setCloudifyUrl(String.format(cloudifyUrlPattern, productUri, editionUrlVariable));
//		}
//	}

}