//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 =  $(this).attr('rel').replace('ajax_id_product_', '');
			if ($(this).attr('disabled') != 'disabled')
				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;
		});
	},

	// 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
			$(callerElement).attr('disabled', 'disabled');

		//send the ajax request to the server
		$.ajax({
			type: 'POST',
			url: baseDir + 'cart.php',
			async: true,
			cache: false,
			dataType : "json",
			data: 'add=1&ajax=true&qty=' + ((quantity && quantity != null) ? quantity : '1') + '&id_product=' + idProduct + '&token=' + static_token + ( (parseInt(idCombination) && idCombination != null) ? '&ipa=' + parseInt(idCombination): ''),
			success: function(jsonData,textStatus,jqXHR)
			{
				// add appliance to whishlist module
				if (whishlist && !jsonData.errors)
					WishlistAddProductCart(whishlist[0], idProduct, idCombination, whishlist[1]);

				// add the picture to the cart
				var $element = $(callerElement).parent().parent().find('a.product_image img,a.product_img_link img');
				if (!$element.length)
					$element = $('#bigpic');
				var $picture = $element.clone();
				var pictureOffsetOriginal = $element.offset();
				$picture.css({'position': 'absolute', 'top': pictureOffsetOriginal.top, 'left': pictureOffsetOriginal.left});
				var pictureOffset = $picture.offset();
				var cartBlockOffset = $('#cart_block').offset();

				$picture.appendTo('body');
				$picture.css({ 'position': 'absolute', 'top': $picture.css('top'), 'left': $picture.css('left') })
				.animate({ 'width': $element.attr('width')*0.66, 'height': $element.attr('height')*0.66, 'opacity': 0.2, 'top': cartBlockOffset.top + 30, 'left': cartBlockOffset.left + 15 }, 1000)
				.fadeOut(100, 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
					$(callerElement).removeAttr('disabled');
			}
		});
	},

	//remove a product from the cart via ajax
	remove : function(idProduct, idCombination, customizationId){
		//send the ajax request to the server
		$.ajax({
			type: 'POST',
			url: baseDir + 'cart.php',
			async: true,
			cache: false,
			dataType : "json",
			data: 'delete=1&id_product=' + idProduct + '&ipa=' + ((idCombination != null && parseInt(idCombination)) ? idCombination : '') + ((customizationId && customizationId != null) ? '&id_customization=' + customizationId : '') + '&token=' + static_token + '&ajax=true',
			success: function(jsonData)	{
				ajaxCart.updateCart(jsonData);
				if ($('body').attr('id') == 'order' || $('body').attr('id') == 'order-opc')
					deletProductFromSummary(idProduct+'_'+idCombination);
			},
			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);
		}
		else
		{
			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 everywhere in the page
	updateCartEverywhere : function(jsonData) {
		$('.ajax_cart_total').text(jsonData.productTotal);
		$('.ajax_cart_shipping_cost').text(jsonData.shippingCost);
		$('.ajax_cart_tax_cost').text(jsonData.taxCost);
		$('.cart_block_wrapping_cost').text(jsonData.wrappingCost);
		$('.ajax_block_cart_total').text(jsonData.total);
		if(parseInt(jsonData.nbTotalProducts) > 0)
		{
			$('.ajax_cart_no_product').hide();
			$('.ajax_cart_quantity').text(jsonData.nbTotalProducts);
			$('.ajax_cart_quantity').fadeIn('slow');
			$('.ajax_cart_total').fadeIn('slow');

			if(parseInt(jsonData.nbTotalProducts) > 1)
			{
				$('.ajax_cart_product_txt').each( function () {
					$(this).hide	();
				});

				$('.ajax_cart_product_txt_s').each( function () {
					$(this).show();
				});

			}
			else
			{
				$('.ajax_cart_product_txt').each( function () {
					$(this).show();
				});

				$('.ajax_cart_product_txt_s').each( function () {
					$(this).hide();
				});
			}
		}
		else
		{
			$('.ajax_cart_quantity, .ajax_cart_product_txt_s, .ajax_cart_product_txt, .ajax_cart_total').each( function () {
					$(this).hide();
				});
			$('.ajax_cart_no_product').show('slow');
		}
	}
};

//when document is loaded...
$(document).ready(function(){
	ajaxCart.overrideButtonsInThePage();
	ajaxCart.refresh();
});