/*******************************************************************************
 * Copyright (c) 2013 Pascal Hirmer.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and the Apache License 2.0 which both accompany this distribution,
 * and are available at http://www.eclipse.org/legal/epl-v10.html
 * and http://www.apache.org/licenses/LICENSE-2.0
 *
 * Contributors:
 *    Pascal Hirmer - initial API and implementation
 *******************************************************************************/

define(function() {

	/**
	 * This module handles a click on "Complete Topology" in the enterTopologyCompletionInformation dialog.
	 */
	var module = {
		complete: complete,
		restartCompletion: restartCompletion
	};
	return module;

	/**
	 * This function start the topology completion. With information from the
	 * PolicyInformationDialog the topologyCompletion.jsp is called which will invoke the
	 * Topology Completion java component. The parameters determine if the current topology
	 * will be overwritten or if a new topology is created.
	 *
	 * @param (String)  overwriteTopology
	 * 						determines how to save the topology. If true, the current topology is overwritten.
	 * @param (Boolean) openInNewWindow
	 *						determines if the result is opened in a new window
	 * @param (String)  topologyName
	 *						the name of the new topology
	 * @param (String)  topologyNamespace
	 *						the namespace of the new topology
	 * @param (Boolean) stepByStep
	 * 						if true, the completion will be processed step by step
	 * @param (String)  repositoryURL
	 * 						the URL to the repository the topology is saved to
	 * @param (String)	toscaNamespace
	 * 						the namespace URL of TOSCA
	 * @param (String)	wineryNamespace
	 * 						the namespace URL of winery
	 * @param (String)	serviceTemplateName
	 * 						the name of the service template containing the displayed topology template
	 * @param (String)	topologyTemplateURL
	 * 						the URL to the displayed topology template
	 */
	function complete(overwriteTopology, openInNewWindow, topologyName, topologyNamespace, stepByStep, repositoryURL, serviceTemplateName, topologyTemplateURL) {

		// if the user wants to create a new topology, a post call is sent to the repository adding
		// the new ServiceTemplate
		if (!overwriteTopology) {
			var dataToSend = "name=" + topologyName + "&namespace=" + topologyNamespace;
			var url = repositoryURL + "/servicetemplates/";
			$.ajax(
				{
					type: "POST",
					async: false,
					url: url,
					"data": dataToSend,
					dataType: "text",
					error: function(jqXHR, textStatus, errorThrown) {
						vShowAJAXError("Could not add Service Template.");
					}
				}
			);
		}

		var topology;
		require(["winery-topologymodeler-AMD"], function(wt) {
			topology = wt.getTopologyTemplateAsXML(true);
		
			// call to the completion JSP which will call the java component
			$.post("jsp/topologyCompletion/topologyCompletion.jsp", {topology: topology, stName: serviceTemplateName, templateURL: topologyTemplateURL, overwriteTopology: overwriteTopology, topologyName: topologyName, topologyNamespace: topologyNamespace, repositoryURL: repositoryURL, stepByStep: stepByStep, openInNewWindow: openInNewWindow, restarted: "false"},
				/**
				 * Callback function which will either open a new window if a new topology was created or
				 * refresh the current browser window
				 *
				 * @param (String) data
				 *			the answer of the post call
				 */
				function(data){
					// checks the message returned by the CompletionInterface
					if (data.indexOf("topologyComplete") != -1) {
						vShowSuccess('The topology is already complete.');
					} else if (data.indexOf("failure") != -1) {
						vShowError(data);
					} else if (data.indexOf("userTopologySelection") != -1) {
						$(chooseTopologyDiag[0].children[0].children[0].children[1]).html(data);
						window.setTimeout(jsPlumb.repaintEverything, JQUERY_ANIMATION_DURATION);
						chooseTopologyDiag.modal("show");
					} else if (data.indexOf("topologyComplete") == -1 && data.indexOf("userTopologySelection") == -1 && data.indexOf("userInteraction") != -1) {
						$(chooseRelationshipTemplateDiag[0].children[0].children[0].children[1]).html(data);
						window.setTimeout(jsPlumb.repaintEverything, JQUERY_ANIMATION_DURATION);
						chooseRelationshipTemplateDiag.modal("show");
					} else if (data.indexOf("topologyComplete") == -1 && data.indexOf("stepByStep") != -1) {
						$(chooseNodeTemplateDiag[0].children[0].children[0].children[1]).html(data);
						window.setTimeout(jsPlumb.repaintEverything, JQUERY_ANIMATION_DURATION);
						chooseNodeTemplateDiag.modal("show");
					} else {
						if (openInNewWindow) {
							// a new topology has been created, open it in a new window
							var win=window.open('?repositoryURL=' + repositoryURL + '&ns='+ topologyNamespace + '&id=' + topologyName, '_blank');
							win.focus();
						} else if (overwriteTopology) {
							// refresh page
							document.location.reload(true);
						}
					}
				}
			);
		});
	}

	/**
	 * This function restarts the topology completion when it has been stopped to get a
	 * user decision.
	 *
	 * @param (String) topology
	 *					the topology as XML string
	 * @param (String) overwriteTopology
	 * 					determines how to save the topology. Can contain the values "createNew" or "overwrite"
	 * @param (Boolean) openInNewWindow
	 *					determines if the result is opened in a new window
	 * @param (String) topologyName
	 *					the name of the new topology
	 * @param (String) topologyNamespace
	 *					the namespace of the new topology
	 * @param (Boolean) stepByStep
	 * 					if true, the completion will be processed step by step
	 * @param (String)	serviceTemplateName
	 * 						the name of the service template containing the displayed topology template
	 * @param (String)	topologyTemplateURL
	 * 						the URL to the displayed topology template
	 * @param (String)  repositoryURL
	 * 						the URL to the repository the topology is saved to
	 */
	function restartCompletion(topology, overwriteTopology, openInNewWindow, topologyName, topologyNamespace, stepByStep, serviceTemplateName, topologyTemplateURL, repositoryURL) {

		// remove whitespaces in the topology XML string
		topology = topology.replace(/\s+/g, ' ');
		topology = topology.substr(1);

		// call to the completion JSP which will call the java component
		$.post("jsp/topologyCompletion/topologyCompletion.jsp", { topology: topology, stName: serviceTemplateName, templateURL: topologyTemplateURL, overwriteTopology: overwriteTopology, topologyName: topologyName, topologyNamespace: topologyNamespace, repositoryURL: repositoryURL, stepByStep: stepByStep, restarted: "true"},
			/**
			 * Callback function which will either open a new window if a new topology was created or
			 * refresh the current browser window
			 *
			 * @param (String) data
			 *			the answer of the post call
			 */
			function(data){
				if (data.indexOf("Successful") == -1 && data.indexOf("stepByStep") == -1) {
					$(chooseRelationshipTemplateDiag[0].children[0].children[0].children[1]).html(data);
					window.setTimeout(jsPlumb.repaintEverything, JQUERY_ANIMATION_DURATION);
					chooseRelationshipTemplateDiag.modal("show");
				} else if (data.indexOf("Successful") == -1 && data.indexOf("stepByStep") != -1) {
					$(chooseNodeTemplateDiag[0].children[0].children[0].children[1]).html(data);
					window.setTimeout(jsPlumb.repaintEverything, JQUERY_ANIMATION_DURATION);
					chooseNodeTemplateDiag.modal("show");
				} else {
					if (openInNewWindow) {
						// a new topology has been created, open it in a new window
						var win = window.open('?repositoryURL=' + "<%=repositoryURL%>" + '&ns='+ topologyNamespace + '&id=' + topologyName, '_blank');
						win.focus();
					} else if (overwriteTopology) {
						// refresh page
						document.location.reload(true);
					}
				}
			}
		);
	}
});