//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...
        $('#cart_block_list .ajax_cart_block_remove_link').unbind('click').click(function(){
            // Customized product management
            var customizationId = 0;
            var productId = 0;
            var productAttributeId = 0;
            if ($($(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;
        });
    },
	
    // try to expand the cart
    expand : function(){
        if ($('#cart_block #cart_block_list').hasClass('collapsed'))
        {
            $('#cart_block #cart_block_summary').slideUp(200, function(){
                $(this).addClass('collapsed').removeClass('expanded');
                $('#cart_block #cart_block_list').slideDown({
                    duration: 600,
                    complete: function(){
                        $(this).addClass('expanded').removeClass('collapsed');
                    }
                });
            });
            // toogle the button expand/collapse button
            $('#cart_block h4 span#block_cart_expand').fadeOut('slow', function(){
                $('#cart_block h4 span#block_cart_collapse').fadeIn('fast');
            });
			
            // save the expand statut in the user cookie
            $.ajax({
                type: 'GET',
                url: baseDir + 'modules/blockcart/blockcart-set-collapse.php',
                async: true,
                data: 'ajax_blockcart_display=expand' + '&rand=' + new Date().getTime()
            });
			
			
        }
    },
	
    // 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);
            }
        });
    },
	
    // try to collapse the cart
    collapse : function(){
		
        if ($('#cart_block #cart_block_list').hasClass('expanded'))
        {
            $('#cart_block #cart_block_list').slideUp('slow', function(){
                $(this).addClass('collapsed').removeClass('expanded');
                $('#cart_block #cart_block_summary').slideDown(700, function(){
                    $(this).addClass('expanded').removeClass('collapsed');
                });
            });
            $('#cart_block h4 span#block_cart_collapse').fadeOut('slow', function(){
                $('#cart_block h4 span#block_cart_expand').fadeIn('fast');
            });
			
            // save the expand statut in the user cookie
            $.ajax({
                type: 'GET',
                url: baseDir + 'modules/blockcart/blockcart-set-collapse.php',
                async: true,
                data: 'ajax_blockcart_display=collapse' + '&rand=' + new Date().getTime()
            });
        }
    },
	
    // 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: $('#cart_block').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');
                    }
                });
                //document.location = "http://localhost/prestashop/137/";
                location.reload(); //on recharge la page
            },
            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');
            }
        });
    },
	
    //hide the products displayed in the page but no more in the json data
    hideOldProducts : function(jsonData) {
        //delete an eventually removed product of the displayed cart (only if cart is not empty!)
        if($('#cart_block #cart_block_list dl.products').length > 0)
        {
            var removedProductId = null;
            var removedProductData = null;
            var removedProductDomId = null;
            //look for a product to delete...
            $('#cart_block_list dl.products dt').each(function(){
                //retrieve idProduct and idCombination from the displayed product in the block cart
                var domIdProduct = $(this).attr('id');
                var firstCut =  domIdProduct.replace('cart_block_product_', '');
                var ids = firstCut.split('_');

                //try to know if the current product is still in the new list
                var stayInTheCart = false;
                for (aProduct in jsonData.products)
                {
                    //we've called the variable aProduct because IE6 bug if this variable is called product
                    //if product has attributes
                    if (jsonData.products[aProduct]['id'] == ids[0] && (!ids[1] || jsonData.products[aProduct]['idCombination'] == ids[1]))
                    {
                        stayInTheCart = true;
                        // update the product customization display (when the product is still in the cart)
                        ajaxCart.hideOldProductCustomizations(jsonData.products[aProduct], domIdProduct);
                    }
                }
                //remove product if it's no more in the cart
                if(!stayInTheCart)
                {
                    removedProductId = $(this).attr('id');
                //return false; // Regarding that the customer can only remove products one by one, we break the loop
                }
            });
			
            //if there is a removed product, delete it from the displayed block cart
            if (removedProductId != null)
            {
                var firstCut =  removedProductId.replace('cart_block_product_', '');
                var ids = firstCut.split('_');

                $('#'+removedProductId).addClass('strike').fadeTo('slow', 0, function(){
                    $(this).slideUp('slow', function(){
                        $(this).remove();
                        //if the cart is now empty, show the 'no product in the cart' message
                        if($('#cart_block dl.products dt').length == 0)
                        {
                            $('p#cart_block_no_products:hidden').slideDown('fast');
                            $('div#cart_block dl.products').remove();
                        }
                    });
                });
                $('dd#cart_block_combination_of_' + ids[0] + (ids[1] ? '_'+ids[1] : '') ).fadeTo('fast', 0, function(){
                    $(this).slideUp('fast', function(){
                        $(this).remove();
                    });
                });
            }
			
        }
    },

    hideOldProductCustomizations : function (product, domIdProduct)
    {
        var customizationList = $('#cart_block #cart_block_list ul#customization_' + product['id'] + '_' + product['idCombination']);
        if(customizationList.length > 0)
        {
            $(customizationList).find("li").each(function(){
                $(this).find("div").each(function() {
                    var customizationDiv = $(this).attr('id');
                    var tmp = customizationDiv.replace('deleteCustomizableProduct_', '');
                    var ids = tmp.split('_');
                    if ((parseInt(product.idCombination) == parseInt(ids[2])) && !ajaxCart.doesCustomizationStillExist(product, ids[0]))
                        $('#' + customizationDiv).parent().addClass('strike').fadeTo('slow', 0, function(){
                            $(this).slideUp('slow');
                            $(this).remove();
                        });
                });
            });
        }
        var removeLinks = $('#cart_block_product_' + domIdProduct).find('a.ajax_cart_block_remove_link');
        if (!product.hasCustomizedDatas && !removeLinks.length)
            $('#' + domIdProduct + ' span.remove_link').html('<a class="ajax_cart_block_remove_link" href="' + baseDir + 'cart.php?delete&amp;id_product=' + product['id'] + '&amp;ipa=' + product['idCombination'] + '&amp;token=' + static_token + '" title="' + removingLinkText + '"> </a>');
    },

    doesCustomizationStillExist : function (product, customizationId)
    {
        var exists = false;

        $(product.customizedDatas).each(function() {
            if (this.customizationId == customizationId)
            {
                exists = true;
                // This return does not mean that we found nothing but simply break the loop
                return false;
            }
        });
        return (exists);
    },

    //refresh display of vouchers (needed for vouchers in % of the total)
    refreshVouchers : function (jsonData) {
        $(jsonData.discounts).each(function(){
            //fix ie6 bug (one more item 'undefined' in IE6)
            if (this.id != undefined && $('#bloc_cart_voucher_' + this.id).length == 1)
            {
                $('#bloc_cart_voucher_' + this.id + ' td.price').text(this.price);
            }
        });
        if (jsonData.discounts.length == 0)
            $('#vouchers').remove();
    },

    // Update product quantity
    updateProductQuantity : function (product, quantity) {
        $('dt#cart_block_product_' + product.id + (product.idCombination ? '_' + product.idCombination : '') + ' .quantity').fadeTo('fast', 0, function() {
            $(this).text(quantity);
            $(this).fadeTo('fast', 1, function(){
                $(this).fadeTo('fast', 0, function(){
                    $(this).fadeTo('fast', 1, function(){
                        $(this).fadeTo('fast', 0, function(){
                            $(this).fadeTo('fast', 1);
                        });
                    });
                });
            });
        });
    },


    //display the products witch are in json data but not already displayed
    displayNewProducts : function(jsonData) {

        //add every new products or update displaying of every updated products
        $(jsonData.products).each(function(){
            //fix ie6 bug (one more item 'undefined' in IE6)
            if (this.id != undefined)
            {
                //create a container for listing the products and hide the 'no product in the cart' message (only if the cart was empty)
                if ($('div#cart_block dl.products').length == 0)
                    $('p#cart_block_no_products:visible').fadeTo('fast', 0, function(){
                        $(this).slideUp('fast').fadeTo(0, 1);
                    }).before('<dl class="products"></dl>');
			
                //if product is not in the displayed cart, add a new product's line
                var domIdProduct = this.id + (this.idCombination ? '_' + this.idCombination : '');
                var domIdProductAttribute = this.id + '_' + (this.idCombination ? this.idCombination : '0');
                if($('#cart_block dt#cart_block_product_'+ domIdProduct ).length == 0)
                {
                    var productId = parseInt(this.id);
                    var productAttributeId = (this.hasAttributes ? parseInt(this.attributes) : 0);
                    var content =  '<dt class="hidden" id="cart_block_product_' + domIdProduct + '">';
                    content += '<span class="quantity-formated"><span class="quantity">' + this.quantity + '</span>x</span>';
                    var name = (this.name.length > 12 ? this.name.substring(0, 10) + '...' : this.name);
                    content += '<a href="' + this.link + '" title="' + this.name + '">' + name + '</a>';
                    content += '<span class="remove_link"><a class="ajax_cart_block_remove_link" href="' + baseDir + 'cart.php?delete&amp;id_product=' + productId + '&amp;token=' + static_token + (this.hasAttributes ? '&amp;ipa=' + parseInt(this.idCombination) : '') + '"> </a></span>';
                    content += '<span class="price">' + this.priceByLine + '</span>';
                    content += '</dt>';
                    if (this.hasAttributes)
                        content += '<dd id="cart_block_combination_of_' + domIdProduct + '" class="hidden"><a href="' + this.link + '" title="' + this.name + '">' + this.attributes + '</a>';
                    if (this.hasCustomizedDatas)
                        content += ajaxCart.displayNewCustomizedDatas(this);
                    if (this.hasAttributes) content += '</dd>';

                    $('#cart_block dl.products').append(content);
                }
                //else update the product's line
                else{
                    var jsonProduct = this;
                    if($('dt#cart_block_product_' + domIdProduct + ' .quantity').text() != jsonProduct.quantity)
                    {
                        // Usual product
                        $('dt#cart_block_product_' + domIdProduct + ' .price').text(jsonProduct.priceByLine);
                        ajaxCart.updateProductQuantity(jsonProduct, jsonProduct.quantity);

                        // Customized product
                        if (jsonProduct.hasCustomizedDatas)
                        {
                            customizationFormatedDatas = ajaxCart.displayNewCustomizedDatas(jsonProduct);
                            if (!$('#cart_block ul#customization_' + domIdProductAttribute).length)
                            {
                                if (jsonProduct.hasAttributes)
                                    $('#cart_block dd#cart_block_combination_of_' + domIdProduct).append(customizationFormatedDatas);
                                else
                                    $('#cart_block dl.products').append(customizationFormatedDatas);
                            }
                            else
                                $('#cart_block ul#customization_' + domIdProductAttribute).append(customizationFormatedDatas);
                        }
                    }
                }
                $('#cart_block dl.products .hidden').slideDown('slow').removeClass('hidden');

                var removeLinks = $('#cart_block_product_' + domIdProduct).find('a.ajax_cart_block_remove_link');
                if (this.hasCustomizedDatas && removeLinks.length)
                    $(removeLinks).each(function() {
                        $(this).remove();
                    });
            }
        });
    },

    displayNewCustomizedDatas : function(product)
    {
        var content = '';
        var productId = parseInt(product.id);
        var productAttributeId = typeof(product.idCombination) == 'undefined' ? 0 : parseInt(product.idCombination);
        var hasAlreadyCustomizations = $('#cart_block ul#customization_' + productId + '_' + productAttributeId).length;

        if (!hasAlreadyCustomizations)
        {
            if (!product.hasAttributes) content += '<dd id="cart_block_combination_of_' + productId + '" class="hidden">';
            content += '<ul class="cart_block_customizations" id="customization_' + productId + '_' + productAttributeId + '">';
        }

        $(product.customizedDatas).each(function(){
            var done = 0;
            customizationId = parseInt(this.customizationId);
            productAttributeId = typeof(product.idCombination) == 'undefined' ? 0 : parseInt(product.idCombination);
            // If the customization is already displayed on the cart, no update's needed
            if($('#cart_block').find("div[@id^=deleteCustomizableProduct_" + customizationId + "_]").length)
                return ('');
            content += '<li name="customization"><div class="deleteCustomizableProduct" id="deleteCustomizableProduct_' + customizationId + '_' + productId + '_' + (productAttributeId ?  productAttributeId : '0') + '"><a class="ajax_cart_block_remove_link" href="' + baseDir + 'cart.php?delete&amp;id_product=' + productId + '&amp;ipa=' + productAttributeId + '&amp;id_customization=' + customizationId + '&amp;token=' + static_token + '"> </a></div><span class="quantity-formated"><span class="quantity">' + parseInt(this.quantity) + '</span>x</span>';

            // Give to the customized product the first textfield value as name
            $(this.datas).each(function(){
                if (this['type'] == CUSTOMIZE_TEXTFIELD)
                {
                    $(this.datas).each(function(){
                        if (this['index'] == 0)
                        {
                            content += this.truncatedValue;
                            done = 1;
                            return false;
                        }
                    })
                }
            });

            // If the customized product did not have any textfield, it will have the customizationId as name
            if (!done)
                content += customizationIdMessage + customizationId;
            if (!hasAlreadyCustomizations) content += '</li>';

            // Field cleaning
            if (customizationId)
            {
                $('#uploadable_files li div.customizationUploadBrowse img').remove();
                $('#text_fields li input').attr('value', '');
            }
        });

        if (!hasAlreadyCustomizations)
        {
            content += '</ul>';
            if (!product.hasAttributes) content += '</dd>';
        }
        return (content);
    },


    //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.expand();
        ajaxCart.updateCartEverywhere(jsonData);
        ajaxCart.hideOldProducts(jsonData);
        ajaxCart.displayNewProducts(jsonData);
        ajaxCart.refreshVouchers(jsonData);
		
        //update 'first' and 'last' item classes
        $('#cart_block dl.products dt').removeClass('first_item').removeClass('last_item').removeClass('item');
        $('#cart_block dl.products dt:first').addClass('first_item');
        $('#cart_block dl.products dt:not(:first,:last)').addClass('item');
        $('#cart_block dl.products dt:last').addClass('last_item');
		
        //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) {
        $('.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);
        if(jsonData.nbTotalProducts > 0)
        {
            $('.ajax_cart_no_product:visible').hide();
            $('.ajax_cart_quantity').text(jsonData.nbTotalProducts);

            $('.ajax_cart_quantity:hidden').fadeIn('slow');
            $('.ajax_cart_total:hidden').fadeIn('slow');
			
            if(jsonData.nbTotalProducts > 1)
            {
                $('.ajax_cart_product_txt:visible').hide();
                $('.ajax_cart_product_txt_s:hidden').show();
            }
            else
            {
                $('.ajax_cart_product_txt:hidden').fadeIn('slow');
                $('.ajax_cart_product_txt_s:visible').fadeOut('slow');
            }
        }
        else
        {
            $('.ajax_cart_quantity:visible, .ajax_cart_product_txt_s:visible, .ajax_cart_product_txt:visible, .ajax_cart_total:visible').fadeOut('slow', function(){
                $('.ajax_cart_no_product:hidden').fadeIn('slow');
            });
        }
    }
};

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

    // expand/collapse management
    $('#block_cart_collapse').click(function(){
        ajaxCart.collapse();
    });
    $('#block_cart_expand').click(function(){
        ajaxCart.expand();
    });
    ajaxCart.overrideButtonsInThePage();
    ajaxCart.refresh();
});