/*!
 * jquery.fancytree.table.js
 *
 * Render tree as table (aka 'tree grid', 'table tree').
 * (Extension module for jquery.fancytree.js: https://github.com/mar10/fancytree/)
 *
 * Copyright (c) 2008-2019, Martin Wendt (https://wwWendt.de)
 *
 * Released under the MIT license
 * https://github.com/mar10/fancytree/wiki/LicenseInfo
 *
 * @version @VERSION
 * @date @DATE
 */

(function(factory) {
	if (typeof define === "function" && define.amd) {
		// AMD. Register as an anonymous module.
		define(["jquery", "./jquery.fancytree"], factory);
	} else if (typeof module === "object" && module.exports) {
		// Node/CommonJS
		require("./jquery.fancytree");
		module.exports = factory(require("jquery"));
	} else {
		// Browser globals
		factory(jQuery);
	}
})(function($) {
	"use strict";

	/******************************************************************************
	 * Private functions and variables
	 */
	function _assert(cond, msg) {
		msg = msg || "";
		if (!cond) {
			$.error("Assertion failed " + msg);
		}
	}

	function insertFirstChild(referenceNode, newNode) {
		referenceNode.insertBefore(newNode, referenceNode.firstChild);
	}

	function insertSiblingAfter(referenceNode, newNode) {
		referenceNode.parentNode.insertBefore(
			newNode,
			referenceNode.nextSibling
		);
	}

	/* Show/hide all rows that are structural descendants of `parent`. */
	function setChildRowVisibility(parent, flag) {
		parent.visit(function(node) {
			var tr = node.tr;
			// currentFlag = node.hide ? false : flag; // fix for ext-filter
			if (tr) {
				tr.style.display = node.hide || !flag ? "none" : "";
			}
			if (!node.expanded) {
				return "skip";
			}
		});
	}

	/* Find node that is rendered in previous row. */
	function findPrevRowNode(node) {
		var i,
			last,
			prev,
			parent = node.parent,
			siblings = parent ? parent.children : null;

		if (siblings && siblings.length > 1 && siblings[0] !== node) {
			// use the lowest descendant of the preceeding sibling
			i = $.inArray(node, siblings);
			prev = siblings[i - 1];
			_assert(prev.tr);
			// descend to lowest child (with a <tr> tag)
			while (prev.children && prev.children.length) {
				last = prev.children[prev.children.length - 1];
				if (!last.tr) {
					break;
				}
				prev = last;
			}
		} else {
			// if there is no preceding sibling, use the direct parent
			prev = parent;
		}
		return prev;
	}

	$.ui.fancytree.registerExtension({
		name: "table",
		version: "@VERSION",
		// Default options for this extension.
		options: {
			checkboxColumnIdx: null, // render the checkboxes into the this column index (default: nodeColumnIdx)
			indentation: 16, // indent every node level by 16px
			mergeStatusColumns: true, // display 'nodata', 'loading', 'error' centered in a single, merged TR
			nodeColumnIdx: 0, // render node expander, icon, and title to this column (default: #0)
		},
		// Overide virtual methods for this extension.
		// `this`       : is this extension object
		// `this._super`: the virtual function that was overriden (member of prev. extension or Fancytree)
		treeInit: function(ctx) {
			var i,
				n,
				$row,
				$tbody,
				tree = ctx.tree,
				opts = ctx.options,
				tableOpts = opts.table,
				$table = tree.widget.element;

			if (tableOpts.customStatus != null) {
				if (opts.renderStatusColumns == null) {
					tree.warn(
						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' instead."
					);
					opts.renderStatusColumns = tableOpts.customStatus;
				} else {
					$.error(
						"The 'customStatus' option is deprecated since v2.15.0. Use 'renderStatusColumns' only instead."
					);
				}
			}
			if (opts.renderStatusColumns) {
				if (opts.renderStatusColumns === true) {
					opts.renderStatusColumns = opts.renderColumns;
					// } else if( opts.renderStatusColumns === "wide" ) {
					// 	opts.renderStatusColumns = _renderStatusNodeWide;
				}
			}

			$table.addClass("fancytree-container fancytree-ext-table");
			$tbody = $table.find(">tbody");
			if (!$tbody.length) {
				// TODO: not sure if we can rely on browsers to insert missing <tbody> before <tr>s:
				if ($table.find(">tr").length) {
					$.error(
						"Expected table > tbody > tr. If you see this please open an issue."
					);
				}
				$tbody = $("<tbody>").appendTo($table);
			}

			tree.tbody = $tbody[0];

			// Prepare row templates:
			// Determine column count from table header if any
			tree.columnCount = $("thead >tr", $table)
				.last()
				.find(">th", $table).length;
			// Read TR templates from tbody if any
			$row = $tbody.children("tr").first();
			if ($row.length) {
				n = $row.children("td").length;
				if (tree.columnCount && n !== tree.columnCount) {
					tree.warn(
						"Column count mismatch between thead (" +
							tree.columnCount +
							") and tbody (" +
							n +
							"): using tbody."
					);
					tree.columnCount = n;
				}
				$row = $row.clone();
			} else {
				// Only thead is defined: create default row markup
				_assert(
					tree.columnCount >= 1,
					"Need either <thead> or <tbody> with <td> elements to determine column count."
				);
				$row = $("<tr />");
				for (i = 0; i < tree.columnCount; i++) {
					$row.append("<td />");
				}
			}
			$row.find(">td")
				.eq(tableOpts.nodeColumnIdx)
				.html("<span class='fancytree-node' />");
			if (opts.aria) {
				$row.attr("role", "row");
				$row.find("td").attr("role", "gridcell");
			}
			tree.rowFragment = document.createDocumentFragment();
			tree.rowFragment.appendChild($row.get(0));

			// // If tbody contains a second row, use this as status node template
			// $row = $tbody.children("tr").eq(1);
			// if( $row.length === 0 ) {
			// 	tree.statusRowFragment = tree.rowFragment;
			// } else {
			// 	$row = $row.clone();
			// 	tree.statusRowFragment = document.createDocumentFragment();
			// 	tree.statusRowFragment.appendChild($row.get(0));
			// }
			//
			$tbody.empty();

			// Make sure that status classes are set on the node's <tr> elements
			tree.statusClassPropName = "tr";
			tree.ariaPropName = "tr";
			this.nodeContainerAttrName = "tr";

			// #489: make sure $container is set to <table>, even if ext-dnd is listed before ext-table
			tree.$container = $table;

			this._superApply(arguments);

			// standard Fancytree created a root UL
			$(tree.rootNode.ul).remove();
			tree.rootNode.ul = null;

			// Add container to the TAB chain
			// #577: Allow to set tabindex to "0", "-1" and ""
			this.$container.attr("tabindex", opts.tabindex);
			// this.$container.attr("tabindex", opts.tabbable ? "0" : "-1");
			if (opts.aria) {
				tree.$container
					.attr("role", "treegrid")
					.attr("aria-readonly", true);
			}
		},
		nodeRemoveChildMarkup: function(ctx) {
			var node = ctx.node;
			//		node.debug("nodeRemoveChildMarkup()");
			node.visit(function(n) {
				if (n.tr) {
					$(n.tr).remove();
					n.tr = null;
				}
			});
		},
		nodeRemoveMarkup: function(ctx) {
			var node = ctx.node;
			//		node.debug("nodeRemoveMarkup()");
			if (node.tr) {
				$(node.tr).remove();
				node.tr = null;
			}
			this.nodeRemoveChildMarkup(ctx);
		},
		/* Override standard render. */
		nodeRender: function(ctx, force, deep, collapsed, _recursive) {
			var children,
				firstTr,
				i,
				l,
				newRow,
				prevNode,
				prevTr,
				subCtx,
				tree = ctx.tree,
				node = ctx.node,
				opts = ctx.options,
				isRootNode = !node.parent;

			if (tree._enableUpdate === false) {
				// $.ui.fancytree.debug("*** nodeRender _enableUpdate: false");
				return;
			}
			if (!_recursive) {
				ctx.hasCollapsedParents = node.parent && !node.parent.expanded;
			}
			// $.ui.fancytree.debug("*** nodeRender " + node + ", isRoot=" + isRootNode, "tr=" + node.tr, "hcp=" + ctx.hasCollapsedParents, "parent.tr=" + (node.parent && node.parent.tr));
			if (!isRootNode) {
				if (node.tr && force) {
					this.nodeRemoveMarkup(ctx);
				}
				if (node.tr) {
					if (force) {
						// Set icon, link, and title (normally this is only required on initial render)
						this.nodeRenderTitle(ctx); // triggers renderColumns()
					} else {
						// Update element classes according to node state
						this.nodeRenderStatus(ctx);
					}
				} else {
					if (ctx.hasCollapsedParents && !deep) {
						// #166: we assume that the parent will be (recursively) rendered
						// later anyway.
						// node.debug("nodeRender ignored due to unrendered parent");
						return;
					}
					// Create new <tr> after previous row
					// if( node.isStatusNode() ) {
					// 	newRow = tree.statusRowFragment.firstChild.cloneNode(true);
					// } else {
					newRow = tree.rowFragment.firstChild.cloneNode(true);
					// }
					prevNode = findPrevRowNode(node);
					// $.ui.fancytree.debug("*** nodeRender " + node + ": prev: " + prevNode.key);
					_assert(prevNode);
					if (collapsed === true && _recursive) {
						// hide all child rows, so we can use an animation to show it later
						newRow.style.display = "none";
					} else if (deep && ctx.hasCollapsedParents) {
						// also hide this row if deep === true but any parent is collapsed
						newRow.style.display = "none";
						//					newRow.style.color = "red";
					}
					if (prevNode.tr) {
						insertSiblingAfter(prevNode.tr, newRow);
					} else {
						_assert(
							!prevNode.parent,
							"prev. row must have a tr, or be system root"
						);
						// tree.tbody.appendChild(newRow);
						insertFirstChild(tree.tbody, newRow); // #675
					}
					node.tr = newRow;
					if (node.key && opts.generateIds) {
						node.tr.id = opts.idPrefix + node.key;
					}
					node.tr.ftnode = node;
					// if(opts.aria){
					// 	$(node.tr).attr("aria-labelledby", "ftal_" + opts.idPrefix + node.key);
					// }
					node.span = $("span.fancytree-node", node.tr).get(0);
					// Set icon, link, and title (normally this is only required on initial render)
					this.nodeRenderTitle(ctx);
					// Allow tweaking, binding, after node was created for the first time
					//				tree._triggerNodeEvent("createNode", ctx);
					if (opts.createNode) {
						opts.createNode.call(tree, { type: "createNode" }, ctx);
					}
				}
			}
			// Allow tweaking after node state was rendered
			//		tree._triggerNodeEvent("renderNode", ctx);
			if (opts.renderNode) {
				opts.renderNode.call(tree, { type: "renderNode" }, ctx);
			}
			// Visit child nodes
			// Add child markup
			children = node.children;
			if (children && (isRootNode || deep || node.expanded)) {
				for (i = 0, l = children.length; i < l; i++) {
					subCtx = $.extend({}, ctx, { node: children[i] });
					subCtx.hasCollapsedParents =
						subCtx.hasCollapsedParents || !node.expanded;
					this.nodeRender(subCtx, force, deep, collapsed, true);
				}
			}
			// Make sure, that <tr> order matches node.children order.
			if (children && !_recursive) {
				// we only have to do it once, for the root branch
				prevTr = node.tr || null;
				firstTr = tree.tbody.firstChild;
				// Iterate over all descendants
				node.visit(function(n) {
					if (n.tr) {
						if (
							!n.parent.expanded &&
							n.tr.style.display !== "none"
						) {
							// fix after a node was dropped over a collapsed
							n.tr.style.display = "none";
							setChildRowVisibility(n, false);
						}
						if (n.tr.previousSibling !== prevTr) {
							node.debug("_fixOrder: mismatch at node: " + n);
							var nextTr = prevTr ? prevTr.nextSibling : firstTr;
							tree.tbody.insertBefore(n.tr, nextTr);
						}
						prevTr = n.tr;
					}
				});
			}
			// Update element classes according to node state
			// if(!isRootNode){
			// 	this.nodeRenderStatus(ctx);
			// }
		},
		nodeRenderTitle: function(ctx, title) {
			var $cb,
				res,
				tree = ctx.tree,
				node = ctx.node,
				opts = ctx.options,
				isStatusNode = node.isStatusNode();

			res = this._super(ctx, title);

			if (node.isRootNode()) {
				return res;
			}
			// Move checkbox to custom column
			if (
				opts.checkbox &&
				!isStatusNode &&
				opts.table.checkboxColumnIdx != null
			) {
				$cb = $("span.fancytree-checkbox", node.span); //.detach();
				$(node.tr)
					.find("td")
					.eq(+opts.table.checkboxColumnIdx)
					.html($cb);
			}
			// Update element classes according to node state
			this.nodeRenderStatus(ctx);

			if (isStatusNode) {
				if (opts.renderStatusColumns) {
					// Let user code write column content
					opts.renderStatusColumns.call(
						tree,
						{ type: "renderStatusColumns" },
						ctx
					);
				} else if (opts.table.mergeStatusColumns && node.isTopLevel()) {
					$(node.tr)
						.find(">td")
						.eq(0)
						.prop("colspan", tree.columnCount)
						.text(node.title)
						.addClass("fancytree-status-merged")
						.nextAll()
						.remove();
				} // else: default rendering for status node: leave other cells empty
			} else if (opts.renderColumns) {
				opts.renderColumns.call(tree, { type: "renderColumns" }, ctx);
			}
			return res;
		},
		nodeRenderStatus: function(ctx) {
			var indent,
				node = ctx.node,
				opts = ctx.options;

			this._super(ctx);

			$(node.tr).removeClass("fancytree-node");
			// indent
			indent = (node.getLevel() - 1) * opts.table.indentation;
			if (opts.rtl) {
				$(node.span).css({ paddingRight: indent + "px" });
			} else {
				$(node.span).css({ paddingLeft: indent + "px" });
			}
		},
		/* Expand node, return Deferred.promise. */
		nodeSetExpanded: function(ctx, flag, callOpts) {
			// flag defaults to true
			flag = flag !== false;

			if ((ctx.node.expanded && flag) || (!ctx.node.expanded && !flag)) {
				// Expanded state isn't changed - just call base implementation
				return this._superApply(arguments);
			}

			var dfd = new $.Deferred(),
				subOpts = $.extend({}, callOpts, {
					noEvents: true,
					noAnimation: true,
				});

			callOpts = callOpts || {};

			function _afterExpand(ok) {
				setChildRowVisibility(ctx.node, flag);
				if (ok) {
					if (
						flag &&
						ctx.options.autoScroll &&
						!callOpts.noAnimation &&
						ctx.node.hasChildren()
					) {
						// Scroll down to last child, but keep current node visible
						ctx.node
							.getLastChild()
							.scrollIntoView(true, { topNode: ctx.node })
							.always(function() {
								if (!callOpts.noEvents) {
									ctx.tree._triggerNodeEvent(
										flag ? "expand" : "collapse",
										ctx
									);
								}
								dfd.resolveWith(ctx.node);
							});
					} else {
						if (!callOpts.noEvents) {
							ctx.tree._triggerNodeEvent(
								flag ? "expand" : "collapse",
								ctx
							);
						}
						dfd.resolveWith(ctx.node);
					}
				} else {
					if (!callOpts.noEvents) {
						ctx.tree._triggerNodeEvent(
							flag ? "expand" : "collapse",
							ctx
						);
					}
					dfd.rejectWith(ctx.node);
				}
			}
			// Call base-expand with disabled events and animation
			this._super(ctx, flag, subOpts)
				.done(function() {
					_afterExpand(true);
				})
				.fail(function() {
					_afterExpand(false);
				});
			return dfd.promise();
		},
		nodeSetStatus: function(ctx, status, message, details) {
			if (status === "ok") {
				var node = ctx.node,
					firstChild = node.children ? node.children[0] : null;
				if (firstChild && firstChild.isStatusNode()) {
					$(firstChild.tr).remove();
				}
			}
			return this._superApply(arguments);
		},
		treeClear: function(ctx) {
			this.nodeRemoveChildMarkup(this._makeHookContext(this.rootNode));
			return this._superApply(arguments);
		},
		treeDestroy: function(ctx) {
			this.$container.find("tbody").empty();
			if (this.$source) {
				this.$source.removeClass("fancytree-helper-hidden");
			}
			return this._superApply(arguments);
		},
		/*,
	treeSetFocus: function(ctx, flag) {
//	        alert("treeSetFocus" + ctx.tree.$container);
		ctx.tree.$container.focus();
		$.ui.fancytree.focusTree = ctx.tree;
	}*/
	});
	// Value returned by `require('jquery.fancytree..')`
	return $.ui.fancytree;
}); // End of closure
