/**
 * SimpleTabs - Unobtrusive Tabs with Ajax
 *
 * @example
 *
 *	var tabs = new SimpleTabs($('tab-element'), {
 * 		selector: 'h2.tab-tab'
 *	});
 *
 * @version		1.0
 *
 * @license		MIT License
 * @author		Harald Kirschner <mail [at] digitarald.de>
 * @copyright	2007 Author
 */
var Accord = new Class({

	Implements: [Events, Options],

	/**
	 * Options
	 */
	options: {
		show: 0,
		selector: '.acc-tab',
		classWrapper: 'acc-wrapper',
		classMenu: 'acc-menu',
		classContainer: 'acc-container',
		onSelect: function(toggle, container, index) {
			container.setStyle('display','block');
			//yy = container.getScrollSize().y;
			toggle.addClass('tab-selected');
			//container.tween('height', yy);
			if(toggle.getFirst().getFirst().get('text')=='Map and Directions'){
				$$('map_canvas div').setStyle('display','block');
			}
		},
		onDeselect: function(toggle, container, index) {
			toggle.removeClass('tab-selected');
			//container.tween('height', 0);
			container.setStyle('display','none');
		},
//		onRequest: function(toggle, container, index) {
//			container.addClass('tab-ajax-loading');
//		},
		onComplete: function(toggle, container, index) {
			//container.removeClass('tab-ajax-loading');			
			alert("done");
		},
//		onFailure: function(toggle, container, index) {
//			container.removeClass('tab-ajax-loading');
//		},
		onAdded: Class.empty,
		getContent: null,
		ajaxOptions: {},
		cache: true
	},

	/**
	 * Constructor
	 *
	 * @param {Element} The parent Element that holds the tab elements
	 * @param {Object} Options
	 */
	initialize: function(element, options) {		
		this.element = $(element);
		this.setOptions(options);
		this.selected = null;
		this.build();		
	},

	build: function() {
		this.tabs = [];
		this.menu = new Element('ul', {'class': this.options.classMenu});
		this.wrapper = new Element('div', {'class': this.options.classWrapper});

		this.element.getElements(this.options.selector).each(function(el) {
			var content = el.get('href') || (this.options.getContent ? this.options.getContent.call(this, el) : el.getNext());
			this.addTab(el.innerHTML, el.title || el.innerHTML, content);
		}, this);
		this.element.empty().adopt(this.menu, this.wrapper);		
		
		if (this.tabs.length) this.select(this.options.show);
	},

	/**
	 * Add a new tab at the end of the tab menu
	 *
	 * @param {String} inner Text
	 * @param {String} Title
	 * @param {Element|String} Content Element or URL for Ajax
	 */
	addTab: function(text, title, content) {
		var grab = $(content);
		var container = (grab || new Element('div'))			
			//.setStyle('display', 'none')
			//.setStyle('min-height', 500)
			//.setStyle('overflow', 'hidden')
			.addClass(this.options.classContainer + this.element.id)
			.inject(this.wrapper);
		var pos = this.tabs.length;
		var evt = (this.options.hover) ? 'mouseenter' : 'click';
		var tab = {
			container: container,
			toggle: new Element('li',{'class':'tog'+this.element.id}).grab(new Element('a', {
				href: 'javascript:;',
				title: title
			}).grab(
				new Element('span', {html: text})
			//)).inject(this.menu)
			)).addEvent(evt, this.onClick.bindWithEvent(this, [pos])).inject(this.menu)
		};
		if(container.hasClass("detailitemm")){
			container.setStyle('overflow', 'hidden');
			container.setStyle('height', 0);
		} else {
			container.setStyle('display', 'none');
		}
		if (!grab && $type(content) == 'string') tab.url = content;
		this.tabs.push(tab);
		return this.fireEvent('onAdded', [tab.toggle, tab.container, pos]);
	},

	onClick: function(evt, index) {
		this.select(index);
		//alert(this.tabs[index].toggle.get('text'));
		if(this.tabs[index].toggle.get('text') == 'Map and Directions'){
			if($('gmap').getStyle('height')=='0px'){
				$('gmap').setStyle('height',450);
			}
		}
		return false;
	},

	/**
	 * Select the tab via tab-index
	 *
	 * @param {Number} Tab-index
	 */
	select: function(index) {
		if (this.selected === index || !this.tabs[index]) return this;
		if (this.ajax) this.ajax.cancel().removeEvents();
		var tab = this.tabs[index];
		var params = [tab.toggle, tab.container, index];
		if (this.selected !== null) {
			var current = this.tabs[this.selected];
			if (this.ajax && this.ajax.running) this.ajax.cancel();
			params.extend([current.toggle, current.container, this.selected]);
			this.fireEvent('onDeselect', [current.toggle, current.container, this.selected]);
		}
		this.fireEvent('onSelect', params);
		if (tab.url && (!tab.loaded || !this.options.cache)) {
			this.ajax = this.ajax || new Request.HTML();
			this.ajax.setOptions({
				url: tab.url,
				method: 'get',
				update: tab.container,
				onFailure: this.fireEvent.pass(['onFailure', params], this),
				onComplete: function(resp) {
					tab.loaded = true;
					this.fireEvent('onComplete', params);
				}.bind(this)
			}).setOptions(this.options.ajaxOptions);
			this.ajax.send();
			this.fireEvent('onRequest', params);
		}
		this.selected = index;
		return this;
	}

});