//JS Object : update the cart by ajax actions
var ajaxCart = {
	
	//override every button in the page in relation to the cart
	overrideButtonsInThePage : function(){
		//for every 'add' buttons...
		$('.ajax_add_to_cart_button').unbind('click').click(function(){
			var idProduct =  $(this).attr('rel').replace('ajax_id_product_', '');
			ajaxCart.add(idProduct, null, false, this);
			return false;
		});
		//for product page 'add' button...
		$('body#product p#add_to_cart input').unbind('click').click(function(){
			ajaxCart.add( $('#product_page_product_id').val(), $('#idCombination').val(), true, null, $('#quantity_wanted').val(), null);
			return false;
		});
	
		//for 'delete' buttons in the cart block...
		$('.ajax_cart_block_remove_link').unbind('click').click(function(){
			// Customized product management
			var customizationId = 0;
			var productId = 0;
			var productAttributeId = 0;
			if ($($(this).parent().parent()).attr('name') == 'customization')
				// Reverse two levels: a >> div >> li
				var customizableProductDiv = $($(this).parent().parent()).find("div[@id^=deleteCustomizableProduct_]");
			else
				var customizableProductDiv = $($(this).parent()).find("div[@id^=deleteCustomizableProduct_]");
			if (customizableProductDiv && $(customizableProductDiv).length)
			{
				$(customizableProductDiv).each(function(){
					var ids = $(this).attr('id').split('_');
					if (typeof(ids[1]) != 'undefined')
					{
						customizationId = parseInt(ids[1]);
						productId = parseInt(ids[2]);
						if (typeof(ids[3]) != 'undefined')
							productAttributeId = parseInt(ids[3]);
						return false;
					}
				});
			}

			// Common product management
			if (!customizationId)
			{
				//retrieve idProduct and idCombination from the displayed product in the block cart
				var firstCut = $(this).parent().parent().attr('id').replace('cart_block_product_', '');
				firstCut = firstCut.replace('deleteCustomizableProduct_', '');
				ids = firstCut.split('_');		
				productId = parseInt(ids[0]);
				if (typeof(ids[1]) != 'undefined')
					productAttributeId = parseInt(ids[1]);
			}

			// Removing product from the cart
			ajaxCart.remove(productId, productAttributeId, customizationId);
			return false;
		});
	},
	
	// cart to fix display when using back and previous browsers buttons
	refresh : function(){
		//send the ajax request to the server
		$.ajax({
			type: 'GET',
			url: baseDir + 'cart.php',
			async: true,
			cache: false,
			dataType : "json",
			data: 'ajax=true&token=' + static_token,
			success: function(jsonData)
			{
				ajaxCart.updateCart(jsonData)
			},
			error: function(XMLHttpRequest, textStatus, errorThrown) {
				//alert("TECHNICAL ERROR: unable to refresh the cart.\n\nDetails:\nError thrown: " + XMLHttpRequest + "\n" + 'Text status: ' + textStatus);
			}
		});
	},
	
	// add a product in the cart via ajax
	add : function(idProduct, idCombination, addedFromProductPage, callerElement, quantity, whishlist){
		if (addedFromProductPage && !checkCustomizations())
		{
			alert(fieldRequired);
			return ;
		}
		
		//disabled the button when adding to do not double add if user double click
		if (addedFromProductPage)
		{
			$('body#product p#add_to_cart input').attr('disabled', 'disabled').removeClass('exclusive').addClass('exclusive_disabled');
			$('.filled').removeClass('filled');
		}
		else
			$('.ajax_add_to_cart_button').attr('disabled', 'disabled');
		
		//send the ajax request to the server
		$.ajax({
			type: 'GET',
			url: baseDir + 'cart.php',
			async: true,
			cache: false,
			dataType : "json",
			data: 'add&ajax=true&qty=' + ( (quantity && quantity != null) ? quantity : '1') + '&id_product=' + idProduct + '&token=' + static_token + ( (parseInt(idCombination) && idCombination != null) ? '&ipa=' + parseInt(idCombination): ''),
			success: function(jsonData)
			{
				// add appliance to whishlist module
				if (whishlist && !jsonData.errors) 
					WishlistAddProductCart(whishlist[0], idProduct, idCombination, whishlist[1]);
				//apply 'transfert' effect
				var elementToTransfert = null;
				if (callerElement && callerElement != null)
					$(callerElement).parents().each( function() {
						if ($(this).is('.ajax_block_product')) elementToTransfert = $(this);
					});
				else
					elementToTransfert = $(addedFromProductPage ? 'div#image-block' : ('.ajax_block_product_id_' + idProduct) );
				elementToTransfert.TransferTo({
							to: $('#my_cart_top').get(0),
							className:'transferProduct',
							duration: 800,
							complete: function () {
								ajaxCart.updateCart(jsonData);
								//reactive the button when adding has finished
								if (addedFromProductPage)
									$('body#product p#add_to_cart input').removeAttr('disabled').addClass('exclusive').removeClass('exclusive_disabled');
								else
									$('.ajax_add_to_cart_button').removeAttr('disabled');
							}
				});
			},
			error: function(XMLHttpRequest, textStatus, errorThrown) {
				alert("TECHNICAL ERROR: unable to add the product.\n\nDetails:\nError thrown: " + XMLHttpRequest + "\n" + 'Text status: ' + textStatus);
				//reactive the button when adding has finished
				if (addedFromProductPage)
					$('body#product p#add_to_cart input').removeAttr('disabled').addClass('exclusive').removeClass('exclusive_disabled');
				else
					$('.ajax_add_to_cart_button').removeAttr('disabled');
			}
		});
	},
	
	//remove a product from the cart via ajax
	remove : function(idProduct, idCombination, customizationId){
		//send the ajax request to the server
		$.ajax({
			type: 'GET',
			url: baseDir + 'cart.php',
			async: true,
			cache: false,
			dataType : "json",
			data: 'delete' + '&id_product=' + idProduct + '&ipa=' + ((idCombination != null && parseInt(idCombination)) ? idCombination : '') + ((customizationId && customizationId != null) ? '&id_customization=' + customizationId : '') + '&token=' + static_token + '&ajax=true',
			success: function(jsonData)	{ ajaxCart.updateCart(jsonData) },
			error: function() {alert('ERROR: unable to delete the product');}
		});
	},

	//genarally update the display of the cart
	updateCart : function(jsonData) {
		//user errors display
		if (jsonData.hasError)
		{
			var errors = '';
			for(error in jsonData.errors)
				//IE6 bug fix
				if(error != 'indexOf')
					errors += jsonData.errors[error] + "\n";
			alert(errors);
		}
		ajaxCart.updateCartEverywhere(jsonData);
		
		//reset the onlick events in relation to the cart block (it allow to bind the onclick event to the new 'delete' buttons added)
		ajaxCart.overrideButtonsInThePage();
	},
	
	//update general cart informations everywere in the page
	updateCartEverywhere : function(jsonData) {
		if(jsonData.nbTotalProducts != '0'){
			$('.ajax_cart_no_product').hide();
			$('.ajax_cart_total').text(jsonData.productTotal);
			$('.ajax_cart_shipping_cost').text(jsonData.shippingCost);
			$('.cart_block_wrapping_cost').text(jsonData.wrappingCost);
			$('.ajax_block_cart_total').text(jsonData.total);
			$('#cart_block_shipping_cost').show();
		}else{
			$('.ajax_cart_no_product').show();
		}
	}
}

//when document is loaded...
$(document).ready(function(){

	ajaxCart.overrideButtonsInThePage();
	ajaxCart.refresh();
});