'use strict';

/**
 * Licensed Materials - Property of IBM
 * IBM Cognos Products: BI Cloud (C) Copyright IBM Corp. 2016, 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', 'jquery', '../../../lib/@waca/dashboard-common/dist/utils/Flyout', 'underscore', '../../../widgets/livewidget/nls/StringResources'], function (Class, $, Flyout, _, StringResources) {
	'use strict';

	//The cross tab vis control object.

	var CrosstabControl = Class.extend({

		init: function init(options) {
			CrosstabControl.inherited('init', this, arguments);
			this.domNode = options.domNode;
			this.visualization = options.visualization;
			this._factSlots = null; // Array of fact type names.
		},

		/**
   * should be called before the first call to addDataRows
   */
		resetData: function resetData(visModel) {
			this.visModel = visModel;
			this._resetInternalData();
		},

		_resetInternalData: function _resetInternalData() {
			this._slots = this.visualization.getSlots().getSlotList();
			for (var idx = 0; idx < this._slots.length; idx++) {
				if (!this._slotRowSortOrder && this._slots[idx].getId().indexOf('row') > -1) {
					this._slotRowSortOrder = this._slots[idx].getDefinition().getSortOrder();
					this._slotRowStartIndex = idx;
				} else if (this._slots[idx].getId().indexOf('value') > -1) {
					this._slotValueStartIndex = idx;
					break;
				}
			}
			this._populateFactSlots();
		},

		clear: function clear() {
			var $node = $(this.domNode);
			$node.empty();
		},

		/**
   * @public
   * Pass the required parameter to vis control.
   */
		setGridData: function setGridData(crosstabGrid) {
			this._crosstabGrid = crosstabGrid;
		},

		_removeNonProjectedSelections: function _removeNonProjectedSelections(aSelectionTuple) {
			for (var i = 0; i < aSelectionTuple.length; i++) {
				var selections = aSelectionTuple[i];
				//the key for selections is slotIndex which is set to -1 if column is not projected.
				if (selections[-1]) {
					delete selections[-1];
				}
			}
			return aSelectionTuple;
		},

		/**
   * Apply highlight decoration to the selected measure header cell
   * @param $node: the node has been selected
   */
		decorateMeasureHeader: function decorateMeasureHeader(node) {
			this._crosstabGrid.setMeasureHeaderDecorations(node);
		},

		/**
   * Clear selected measure header cell decoration.
   */
		resetMeasureHeaderDecorations: function resetMeasureHeaderDecorations() {
			this._crosstabGrid.clearMeasureHeaderDecorations();
		},

		/**
   * Apply highlight decoration to the summary cells
   */
		highlightSummary: function highlightSummary(node) {
			this._crosstabGrid.highlightSummary(node);
		},

		/**
   * Clear summary cell hightlight.
   */
		resetSummaryHighlight: function resetSummaryHighlight() {
			this._crosstabGrid.resetSummaryHighlight();
		},

		clearSelection: function clearSelection(options) {
			this._crosstabGrid.setSelections({
				colSelection: null,
				datapointSelection: null,
				rowSelection: null
			}, options);
		},


		/**
   * @returns true if the current node includes the 'selected' or 'selected_secondary' or 'implied_selection' class.
   */
		isCellSelected: function isCellSelected(node) {
			return $(node).hasClass('dashboard-grid-cell-selected');
		},

		isEdgeNodeSelected: function isEdgeNodeSelected(node) {
			var $node = $(node);
			return $node.attr('area') === 'values' || $node.attr('area') === 'cell_edge_column' || $node.attr('area') === 'cell_edge_row';
		},

		isCrosstaMeasureNodeSelected: function isCrosstaMeasureNodeSelected(node) {
			return node.textContent && $(node).attr('area') === 'values';
		},

		/**
   * @returns a map that with the vis slotSortOrder as the key and the cell clicked as the value.
   *
   */
		nodeToSelection: function nodeToSelection(event) {
			if (this._crosstabGrid && this._crosstabGrid.data) {
				var oDataSelection = {};
				var selectionKey = [];
				var $target = $(event.target);
				var selectedColumnIdx = $target.attr('col') || $target.parent().attr('col');
				var selectedRowIdx = $target.attr('row') || $target.parent().attr('row');

				if (selectedColumnIdx !== undefined && selectedRowIdx !== undefined) {
					var dataCell = this._crosstabGrid.data[selectedRowIdx][selectedColumnIdx];

					if (dataCell.ancestor_or_self && dataCell.ancestor_or_self.length >= 2) {
						oDataSelection.isInnerEdge = true;
					}

					if (dataCell.columnEdge) {
						this._getSelectionOnEdges(oDataSelection, dataCell.columnEdge.descendant_or_self, true, dataCell, selectionKey, 'column_level1');
					}

					if (dataCell.rowEdge) {
						this._getSelectionOnEdges(oDataSelection, dataCell.rowEdge.descendant_or_self, false, dataCell, selectionKey, 'row_level1');
					}

					if (!dataCell.rowEdge) {
						this._getSelectionOnEdges(oDataSelection, dataCell.ancestor_or_self, dataCell.type === 'column', dataCell, selectionKey);
					}

					if (dataCell.type !== 'column' && dataCell.type !== 'row') {
						oDataSelection.datapoint = dataCell.value;
					}

					if (this.isCrosstaMeasureNodeSelected(event.target) || $(event.target).attr('measure') === 'true') {
						this._getMeasureHeaderItemValues(oDataSelection, event);
					}
				}

				return oDataSelection;
			}
		},

		_getSelectionOnEdges: function _getSelectionOnEdges(oDataSelection, values, isColumnMemmber, dataCell, selectionKey) {
			var sSlotOfItem = isColumnMemmber ? 'column_level1' : 'row_level1';
			oDataSelection.selectionContext = {
				'slotID': sSlotOfItem,
				'level': dataCell.nestLevel
			};
			_.each(values, function (value) {
				if (!this.isFactSlot(value)) {
					selectionKey.push(value.u);
					if (!oDataSelection[sSlotOfItem]) {
						oDataSelection[sSlotOfItem] = { 'value': [value] };
					} else {
						oDataSelection[sSlotOfItem].value.push(value);
					}
				}
			}.bind(this));
		},

		_populateFactSlots: function _populateFactSlots() {
			var facts = [];
			var slots = this._slots;
			var factDataslots = [];
			for (var i = 0; i < slots.length; ++i) {

				if (slots[i].getDefinition().getType() === 'ordinal') {

					_.each(slots[i].getDataItemList(), function (entry) {
						facts.push(entry.getLabel()); //TODO: Review this legacy
					});
					factDataslots.push(slots[i]);
				}
			}
			this._factSlots = facts;
			this._factDataslots = factDataslots;
		},

		isFactSlot: function isFactSlot(name) {
			if (!this._factSlots) {
				this._populateFactSlots();
			}
			return this._factSlots.indexOf(name) >= 0;
		},

		edgeNodeToSelectionObject: function edgeNodeToSelectionObject($target, slot) {
			var selectedColumnIdx = $target.attr('col') || $target.parent().attr('col');
			var selectedRowIdx = $target.attr('row') || $target.parent().attr('row');
			var dataCell = this._crosstabGrid.data[selectedRowIdx][selectedColumnIdx];
			if (!dataCell.type) {
				return;
			}
			var selectionObj = {
				'attributeSelections': [{
					column: slot.getMapping(),
					value: dataCell.value,
					edgeType: dataCell.type
				}]
			};

			return selectionObj;
		},

		/**
   * @returns an array of selected slots mappings for a given data point.
   */

		dataPointNodeToSlotsSelections: function dataPointNodeToSlotsSelections(event) {
			var $target = $(event.target);
			var selectedColumnIdx = $target.attr('col') || $target.parent().attr('col');
			var selectedRowIdx = $target.attr('row') || $target.parent().attr('row');
			var dataCell = this._crosstabGrid.data[selectedRowIdx][selectedColumnIdx];
			if (dataCell.type) {
				return;
			}

			var aSlotsSelections = [];
			this._getSlotsOnEdges(event, aSlotsSelections);
			if (aSlotsSelections.length === 0) {
				return;
			}

			// Push the cell slot as the last selection.
			var factSlotSelection = void 0;
			for (var i = 0; i < aSlotsSelections.length; i++) {
				if (this.isFactSlot(aSlotsSelections[i].value)) {
					break;
				}
			}
			if (i < aSlotsSelections.length - 1) {
				factSlotSelection = aSlotsSelections.splice(i, 1)[0];
			}

			var factSelections = [];
			var fSelection = void 0;
			var selectionContext = void 0;
			if (factSlotSelection) {
				fSelection = {
					columnName: factSlotSelection.value,
					value: dataCell.rawValue
				};
				// The mapIndex of the data item within the values slot that this cell corresponds to
				selectionContext = this._getFactDataItemIndex(dataCell);
			} else {
				// When values are not on (column) edge, it's at the corner edge. find and add the first value slot mapping.
				var valueSlot = this._slots[2]; //HardCoded
				if (valueSlot) {
					fSelection = {
						columnName: valueSlot.getDataItemList()[0].getLabel(),
						value: dataCell.rawValue
					};
				}
			}

			factSelections.push(fSelection);

			if (dataCell) {
				var heatSlot = _.find(this._slots, function (slot) {
					return slot.getId() === 'heat';
				});
				var heatDataItemList = heatSlot && heatSlot.getDataItemList();
				if (fSelection && heatDataItemList && heatDataItemList.length > 0 && heatDataItemList[0].getLabel() !== fSelection.columnName) {
					factSelections.push({
						columnName: heatDataItemList[0].getLabel(),
						value: dataCell.condValue ? dataCell.condValue.formatted : dataCell.value
					});
				}
			}

			return {
				attributeSelections: aSlotsSelections,
				factSelections: factSelections,
				selectionContext: selectionContext
			};
		},

		_getFactDataItemIndex: function _getFactDataItemIndex(dataCell) {
			// The lowest level subCategory will have the index of the data item within the slot
			var dataCellCategory = dataCell.columnEdge;
			while (dataCellCategory.subCategory) {
				dataCellCategory = dataCellCategory.subCategory;
			}

			return dataCellCategory.index;
		},

		_getFactDataslot: function _getFactDataslot(name) {
			return _.find(this._factDataslots, function (slot) {
				var mapping = slot.getMapping();
				return this.visModel.getLabelByMapping(mapping) === name;
			}.bind(this));
		},

		isSummaryNodeSelected: function isSummaryNodeSelected(node) {
			var name = node.textContent;
			return name === StringResources.get('summaryCaption');
		},

		_getSlotsOnEdges: function _getSlotsOnEdges(event, oDataSelection) {
			var $target = $(event.target);
			var selectedColumnIdx = $target.attr('col') || $target.parent().attr('col');
			var selectedRowIdx = $target.attr('row') || $target.parent().attr('row');
			var dataCell = this._crosstabGrid.data[selectedRowIdx][selectedColumnIdx];

			if (dataCell.columnEdge) {
				this._getSlotsSelectionsOnEdges(oDataSelection, dataCell.columnEdge);
			}

			if (dataCell.rowEdge) {
				this._getSlotsSelectionsOnEdges(oDataSelection, dataCell.rowEdge);
			}

			if (!dataCell.rowEdge) {
				this._getSlotsSelectionsOnEdges(oDataSelection, dataCell);
			}
		},

		edgeNodeToDataslots: function edgeNodeToDataslots(node) {
			if (!this.isEdgeNodeSelected(node)) {
				return;
			}

			var name = node.textContent;

			if (this.isFactSlot(name)) {
				return this._getFactDataslot(name);
			}

			var $node = $(node);
			var slotIdx = Number($node.attr('nestLevel'));
			if ($(node).hasClass('row')) {
				slotIdx += this._slotRowStartIndex;
			}

			return this._slots[slotIdx];
		},

		measureNodeToDataslots: function measureNodeToDataslots(node) {
			if (!this.isCrosstaMeasureNodeSelected(node)) {
				return;
			}
			return this._slots[this._slotValueStartIndex];
		},

		_getSlotsSelectionsOnEdges: function _getSlotsSelectionsOnEdges(aSlotsSelections, edge) {
			var category = edge;
			while (category) {
				var slot;
				if (category.isMeasure) {
					// the edge is a measure
					slot = this.visualization.getSlots().getSlot('values');
				} else {
					var slotName = category.type === 'column' ? 'column_level1' : 'row_level1';
					slot = this.visualization.getSlots().getSlot(slotName);
				}

				aSlotsSelections.push({
					column: slot.getDataItemList()[0],
					value: category.value,
					edgeType: category.type
				});
				category = category.subCategory;
			}
		},

		_getMeasureHeaderItemValues: function _getMeasureHeaderItemValues(oDataSelection, event) {
			var _this = this;

			var targets = void 0;
			var itemValues = [];

			// If the header selected and another measure is selected, obtain items for both (for calculation action)
			var selectedHeaders = this.getSelectedMeasureNodes();
			if (selectedHeaders && selectedHeaders.length === 2 && selectedHeaders[0] !== selectedHeaders[1]) {
				targets = selectedHeaders;
			} else {
				targets = [$(event.target)];
			}

			_.each(targets, function (target) {
				var slotIdx = void 0;
				var slots = _this.visualization.getSlots().getMappedSlotList();
				_.find(slots, function (slot, index) {
					if (slot.getId() === 'values') {
						slotIdx = index;
						return true;
					}
				});

				var $target = $(target);
				var dataCell = _this._crosstabGrid.data[$target.attr('row')][$target.attr('col')];
				var dataItems = _this.visualization.getSlots().getSlot('values').getDataItemList();
				var dataItemIdx = void 0;
				_.find(dataItems, function (dataItem, index) {
					if (dataItem.getLabel() === dataCell.value) {
						dataItemIdx = index;
						return true;
					}
				});

				var oMeasure = dataItems[dataItemIdx];
				var oItemClass = { 'u': oMeasure.getColumnId(), 'd': oMeasure.getLabel(), 'mapIndex': dataItemIdx };

				if (!itemValues[slotIdx]) {
					itemValues[slotIdx] = [];
				}
				itemValues[slotIdx].push(oItemClass);
			});

			oDataSelection.itemClassValues = itemValues;
		},

		/**
   * Gets a list of the nodes that have been selected
   * @return {Array.node} - an array of nodes
   */
		getSelectedMeasureNodes: function getSelectedMeasureNodes() {
			return this._crosstabGrid.getSelectedMeasureNodes();
		}
	});

	return CrosstabControl;
});
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