'use strict';

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: Dashboard
 * (C) Copyright IBM Corp. 2018, 2019
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */

define(['../../lib/@waca/core-client/js/core-client/ui/core/Class', '../glassControllers/SelectDrillTargetActionHandler', '../controls/DrillThroughDefinitionDialog', './dialogs/DrillThroughManageDialog', '../../widgets/livewidget/nls/StringResources', '../../cmHelper/CMHelper', './DrillThroughManageUndoRedo', '../../util/AjaxHelper'], function (Class, SelectDrillTargetActionHandler, DrillThroughDefinitionDialog, DrillThroughManageDialog, StringResources, CMHelper, DrillThroughManageUndoRedo, AjaxHelper) {

	/**
  * Class to create and manage all drill through UI
  */
	var DrillThroughController = Class.extend({

		/**
   * @param {object} options.dashboarAPI - dashboard API object
   * @param {object} options.drillService - drillService wraps the drill through related managers
   */
		init: function init(dashboardApi, drillService) {
			DrillThroughController.inherited('init', this, arguments);
			this.dashboardApi = dashboardApi;
			this.drillService = drillService;
			this.iconsFeature = this.dashboardApi.getFeature('Icons');
		},

		/**
   * Api to create a new drill through definition.
   * @param {object} definitionContent - the content that the drill through definition is based on.
   * @param {object} [options = undefined] - options to create drill definition
   * @param {object} [options.undoRedoOptions] - optional undoRedoOptions
   * @param {object} [options.callback] - optional callback if createDrillDefinition is successful
   *
   */
		createDrillDefinition: function createDrillDefinition(definitionContent, options) {
			if (!this._selectDrillTargetActionHandler) {
				this._selectDrillTargetActionHandler = new SelectDrillTargetActionHandler(this.dashboardApi);
			}
			return this._selectDrillTargetActionHandler.selectTarget({
				handlers: {
					onSelect: function (target) {
						return this._onSelectDrillTarget(definitionContent, target, options);
					}.bind(this)
				}
			});
		},

		_onSelectDrillTarget: function _onSelectDrillTarget(definitionContent, target, options) {
			var drillDefinitionDialog;
			var visualizationAPI = definitionContent.getFeature('Visualization');
			return this.drillService.getDrillThroughModelApi().then(function (drillThroughModelApi) {
				return visualizationAPI.getDataSource().getLocalizedName().then(function (sourceName) {
					var handlers = {
						back: this.createDrillDefinition.bind(this, definitionContent, options),
						onApply: this.addUpdateDrillDefinitionEntry.bind(this, options),
						canApply: this._drillDefinitionIsUniqueName.bind(this, drillThroughModelApi)
					};

					var dialogOptions = {
						controller: this,
						applicationName: this.dashboardApi.getApplicationName(),
						boardName: this.dashboardApi.getFeature('internal').getBoardModel().name,
						sourceName: sourceName,
						targetName: target.name,
						type: target.type,
						assetId: target.assetId,
						assetSearchPath: target.assetSearchPath,
						ownerId: definitionContent.getId(),
						modelRefs: [visualizationAPI.getDataSource().getId()],
						handlers: handlers,
						perspective: target.perspective,
						scope: 'connection',
						isLoading: target.type !== 'exploration',
						iconsFeature: this.iconsFeature
					};
					drillDefinitionDialog = new DrillThroughDefinitionDialog(dialogOptions);
					drillDefinitionDialog.open();

					if (target.type !== 'exploration') {
						var drillMappingManager = this.drillService.getDrillThroughMappingManager();
						return drillMappingManager.doMapping(target.assetId, definitionContent).then(function (mappingResult) {
							var update = {
								isLoading: false,
								mappings: mappingResult && mappingResult.parameterMappings,
								columnLabels: mappingResult && mappingResult.columnLabels
							};
							drillDefinitionDialog.update(update);
						});
					}
				}.bind(this));
			}.bind(this)).catch(function (error) {
				if (drillDefinitionDialog) {
					drillDefinitionDialog.hide();
				}
				this._showError(error);
			}.bind(this));
		},

		/**
   * Api to update a drill through definition.
   * @param {object} definitionContent - the content that the drill through definition is based on.
   * @param {string} id - the unique id of the drill through definition entry.
   * @param {object} [options = undefined] - options to edit drill definition
   * @returns updated drill definition entry
   */
		editDrillDefinition: function editDrillDefinition(definitionContent, id, options) {
			var drillDefinitionDialog;
			var visualizationAPI = definitionContent.getFeature('Visualization');
			return this.drillService.getDrillThroughModelApi().then(function (drillThroughModelApi) {
				return visualizationAPI.getDataSource().getLocalizedName().then(function (sourceName) {
					var drillEntry = drillThroughModelApi.getDrillDefinitionEntry(id);

					var handlers = {
						onApply: this.addUpdateDrillDefinitionEntry.bind(this, options),
						canApply: this._drillDefinitionIsUniqueName.bind(this, drillThroughModelApi)
					};

					var dialogOptions = {
						id: id, //Model drill entry id
						assetId: drillEntry.getAssetId(), //CM report drill target id
						assetSearchPath: drillEntry.getAssetSearchPath(), //CM report drill target searchPath
						applicationName: this.dashboardApi.getApplicationName(),
						boardName: this.dashboardApi.getFeature('internal').getBoardModel().name,
						sourceName: sourceName,
						name: drillEntry.getName(),
						scope: drillEntry.getScope(),
						type: drillEntry.getType(),
						ownerId: definitionContent.getId(),
						modelRefs: [visualizationAPI.getDataSource().getId()],
						handlers: handlers,
						perspective: drillEntry.getPerspective(),
						isLoading: drillEntry.getType() !== 'exploration',
						iconsFeature: this.iconsFeature
					};
					drillDefinitionDialog = new DrillThroughDefinitionDialog(dialogOptions);
					drillDefinitionDialog.open();

					if (drillEntry.getType() !== 'exploration') {
						return this._getTargetNameFromCM(drillEntry).then(function () {
							var drillMappingManager = this.drillService.getDrillThroughMappingManager();
							return drillMappingManager.doMapping(drillEntry.getAssetId(), definitionContent, drillEntry.getMappings()).then(function (reMappingResult) {
								var update = {
									isLoading: false,
									targetName: drillEntry.getTargetName(),
									mappings: reMappingResult && reMappingResult.parameterMappings,
									columnLabels: reMappingResult && reMappingResult.columnLabels
								};

								drillDefinitionDialog.update(update);
							});
						}.bind(this));
					}
				}.bind(this));
			}.bind(this)).catch(function (error) {
				if (drillDefinitionDialog) {
					drillDefinitionDialog.hide();
				}
				this._showError(error);
			}.bind(this));
		},

		manageDrillDefinition: function manageDrillDefinition(options) {
			options = options || {};
			var undoRedoTransaction = new DrillThroughManageUndoRedo(options);
			var transactionInfo = undoRedoTransaction.startTransaction('manageDrillThrough', null);

			var onCreateCallback = function (content, payload) {
				this.createDrillDefinition(content, payload);
			}.bind(this);

			options.handlers = {
				onEdit: this.editDrillDefinition.bind(this),
				onCreate: onCreateCallback,
				onDelete: this.removeDrillDefinition.bind(this),
				okCallback: undoRedoTransaction.endTransaction.bind(undoRedoTransaction, transactionInfo),
				cancelCallback: undoRedoTransaction.rollback.bind(undoRedoTransaction, transactionInfo)
			};
			return new DrillThroughManageDialog(options);
		},

		/**
   * Api to remove a drill through definition
   */
		removeDrillDefinition: function removeDrillDefinition(id, options) {
			return this.drillService.getDrillThroughModelApi().then(function (drillThroughModelApi) {
				options = options || {};
				var success = drillThroughModelApi.deleteDrillDefinitionEntry(id, options.undoRedoOptions);
				if (success && options.callback) {
					options.callback(options);
				}
				return success;
			}.bind(this));
		},

		addUpdateDrillDefinitionEntry: function addUpdateDrillDefinitionEntry(options, spec) {
			return this.drillService.getDrillThroughModelApi().then(function (drillThroughModelApi) {
				options = options || {};
				var entry = drillThroughModelApi.addUpdateDrillDefinitionEntry(spec, options.undoRedoOptions);
				if (options.callback) {
					options.callback(options);
				}
				return entry;
			}.bind(this));
		},

		_selectDrillTarget: function _selectDrillTarget() {
			if (!this._selectDrillTargetActionHandler) {
				this._selectDrillTargetActionHandler = new SelectDrillTargetActionHandler(this.dashboardApi);
			}
			return this._selectDrillTargetActionHandler.selectTarget();
		},

		/**
   * Get the drill target name from content store and cache it within the same session.
   */
		_getTargetNameFromCM: function _getTargetNameFromCM(drillEntry) {
			return new Promise(function (resolve, reject) {
				var _this = this;

				if (!drillEntry.getTargetName()) {
					this.dashboardApi.getGlassSvc('.Content').then(function (contentService) {
						CMHelper.getReportName(contentService, drillEntry.getAssetId()).then(function (result) {
							if (result.errorCode) {
								reject(result);
							} else {
								drillEntry.setTargetName(result);
								resolve();
							}
						}.bind(_this));
					});
				} else {
					resolve();
				}
			}.bind(this));
		},

		_drillDefinitionIsUniqueName: function _drillDefinitionIsUniqueName(drillThroughModelApi, spec) {
			//drillThroughDefinition model is in dashboard scope, within one dashboard, there should be no drillThroughDefinition with the same name
			var entries = drillThroughModelApi.getDrillDefinitionEntries();
			for (var count = 0; count < entries.length; count++) {
				var entry = entries[count];
				//Make sure not to verify against the same entry
				//The name must be unique across all reports
				if (spec.modelRefs[0] === entry.getModelRefs()[0] && entry.getId() !== spec.id && entry.getName() === spec.name) {
					return false;
				}
			}
			return true;
		},

		_showError: function _showError(error) {
			var jqXHR = error.jqXHR || error || {};
			if (!jqXHR.responseText) {
				jqXHR.responseText = error.messages ? error.messages : error.errorKey ? StringResources.get(error.errorKey) : StringResources.get('errorDrillDefinition');
			}
			AjaxHelper.showAjaxServiceErrorMessage(this.dashboardApi, jqXHR);
			//Eat the rejection and return as success
			return Promise.resolve();
		}
	});

	return DrillThroughController;
});
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