//global variables
var combinations = new Array();
var selectedCombination = new Array();
var globalQuantity = new Number;
var colors = new Array();

//check if a function exists
function function_exists(function_name)
{
    if (typeof function_name == 'string')
        return (typeof window[function_name] == 'function');
    return (function_name instanceof Function);
}

//execute oosHook js code
function oosHookJsCode()
{
    for (var i = 0; i < oosHookJsCodeFunctions.length; i++)
    {
        if (function_exists(oosHookJsCodeFunctions[i]))
        setTimeout(oosHookJsCodeFunctions[i]+'()', 0);
    }   
}

//add a combination of attributes in the global JS sytem
function addCombination(idCombination, arrayOfIdAttributes, quantity, price, ecotax, id_image, reference)
{
    globalQuantity += quantity;

    var combination = new Array();
    combination['idCombination'] = idCombination;
    combination['quantity'] = quantity;
    combination['idsAttributes'] = arrayOfIdAttributes;
    combination['price'] = price;
    combination['ecotax'] = ecotax;
    combination['image'] = id_image;
    combination['reference'] = reference;
    combinations.push(combination);
}

// search the combinations' case of attributes and update displaying of availability, prices, ecotax, and image
function findCombination(firstTime)
{
    //create a temporary 'choice' array containing the choices of the customer
    var choice = new Array();
    $('div#attributes select').each(function(){
        choice.push($(this).val());
    });
    var nbAttributesEquals = 0;
    //testing every combination to find the conbination's attributes' case of the user
    
    for (combination in combinations)
    {
        //verify if this combinaison is the same that the user's choice
        nbAttributesEquals = 0;
        for (idAttribute in combinations[combination]['idsAttributes'])
        {
            //ie6 bug fix
            if (idAttribute != 'indexOf'){
                //if this attribute has been choose by user
                if (in_array(combinations[combination]['idsAttributes'][idAttribute], choice))
                {
                    //we are in a good way to find the good combination !
                    nbAttributesEquals++;
                }
            }
        }

        if (nbAttributesEquals == choice.length)
        {
            //combination of the user has been found in our specifications of combinations (created in back office)
            selectedCombination['unavailable'] = false;
            selectedCombination['reference'] = combinations[combination]['reference'];
            $('#idCombination').val(combinations[combination]['idCombination']);

            //get the data of product with these attributes
            quantityAvailable = combinations[combination]['quantity'];
            selectedCombination['price'] = combinations[combination]['price'];
            if (combinations[combination]['ecotax'])
                selectedCombination['ecotax'] = combinations[combination]['ecotax'];
            else
                selectedCombination['ecotax'] = default_eco_tax;
            
            //show the large image in relation to the selected combination
            if (combinations[combination]['image'] && combinations[combination]['image'] != -1)
                displayImage( $('#thumb_'+combinations[combination]['image']).parent() );
            
            //update the display
            updateDisplay();

            if(typeof(firstTime) != 'undefined' && firstTime)
                refreshProductImages(0);
            else
                refreshProductImages(combinations[combination]['idCombination']);
            //leave the function because combination has been found
            return;
        }
    }
    //this combination doesn't exist (not created in back office)
    selectedCombination['unavailable'] = true;
    updateDisplay();
}

function updateColorSelect(id_attribute)
{
    if (id_attribute == 0)
    {
        refreshProductImages(0);
        return ;
    }
    // Visual effect
    $('#color_'+id_attribute).fadeTo('fast', 1, function(){ $(this).fadeTo('slow', 0, function(){ $(this).fadeTo('slow', 1, function(){}); }); });
    // Attribute selection
    $('#group_'+id_color_default+' option[value='+id_attribute+']').attr('selected', 'selected');
    $('#group_'+id_color_default+' option[value!='+id_attribute+']').removeAttr('selected');
    findCombination();
}

//update display of the availability of the product AND the prices of the product
function updateDisplay()
{
    if (!selectedCombination['unavailable'] && quantityAvailable > 0)
    {
        //show the choice of quantities
        $('#quantity_wanted_p:hidden').show('slow');
        
        //show the "add to cart" button ONLY if it was hidden
        $('#add_to_cart:hidden').fadeIn(600);
        
        //hide the hook out of stock
        $('#oosHook').hide();
        
        //availability value management
        if (availableNowValue != '')
        {
            //update the availability statut of the product
            $('#availability_value').removeClass('warning-inline');
            $('#availability_value').text(availableNowValue);
            $('#availability_statut:hidden').show();
        }
        else
        {
            //hide the availability value
            $('#availability_statut:visible').hide();
        }
        
        //'last quantities' message management
        if (quantityAvailable <= maxQuantityToAllowDisplayOfLastQuantityMessage && !allowBuyWhenOutOfStock)
        {
            //display the 'last quantities' message
            $('#last_quantities').show('slow');
        }
        else
        {
            //hide the 'last quantities' message
            $('#last_quantities').hide('slow');
        }
    
        //display the quantities of pieces (only if allowed)
        if (quantitiesDisplayAllowed)
        {
            $('#pQuantityAvailable:hidden').show('slow');
            $('#quantityAvailable').text(quantityAvailable); 
            if(quantityAvailable < 2)
            {
                $('#quantityAvailableTxt').show();
                $('#quantityAvailableTxtMultiple').hide();
            }
            else
            {
                $('#quantityAvailableTxt').hide();
                $('#quantityAvailableTxtMultiple').show();
            }
        }
    }
    else
    {
        //show the hook out of stock
        $('#oosHook').show();
        if ($('#oosHook').length > 0 && function_exists('oosHookJsCode'))
            oosHookJsCode();
        
        //hide 'last quantities' message if it was previously visible
        $('#last_quantities:visible').hide('slow');

        //hide the quantity of pieces if it was previously visible
        $('#pQuantityAvailable:visible').hide('slow');
        
        //hide the choice of quantities
        if (!allowBuyWhenOutOfStock)
            $('#quantity_wanted_p:visible').hide('slow');
        
        //display that the product is unavailable with theses attributes
        if (!selectedCombination['unavailable'])
            $('#availability_value').text(doesntExistNoMore + (globalQuantity > 0 ? ' ' + doesntExistNoMoreBut : '')).addClass('warning-inline');
        else
            $('#availability_value').text(doesntExist).addClass('warning-inline');
        $('#availability_statut:hidden').show();

        
        //show the 'add to cart' button ONLY IF it's possible to buy when out of stock AND if it was previously invisible
        if (allowBuyWhenOutOfStock && !selectedCombination['unavailable'])
        {
            $('#add_to_cart:hidden').fadeIn(600);

            if (availableLaterValue != '')
            {
                $('#availability_value').text(availableLaterValue);
                $('p#availability_statut:hidden').show('slow');
            }
            else
                $('p#availability_statut:visible').hide('slow');            
        }
        else
        {
            $('#add_to_cart:visible').fadeOut(600);
            $('p#availability_statut:hidden').show('slow');
        }
    }
    
    //update display of the the prices in relation to tax, discount, ecotax, and currency criteria
    if (!selectedCombination['unavailable'])
    {
        var attribut_price_tmp = selectedCombination['price'];

        var tax = noTaxForThisProduct ? 1 : ((taxRate / 100) + 1);

        if (noTaxForThisProduct)
            attribut_price_tmp /= tax;

        if (selectedCombination['reference'])
        {
            $('#product_reference span').text(selectedCombination['reference']);
            $('#product_reference:hidden').show();
        }
        else
            $('#product_reference:visible').hide('slow');

        var productPriceWithoutReduction2 = (attribut_price_tmp + productPriceWithoutReduction) * currencyRate;
        
        if (reduction_from != reduction_to && (currentDate > reduction_to || currentDate < reduction_from))
            var priceReduct = 0;
        else
            var priceReduct = productPriceWithoutReduction2 / 100 * parseFloat(reduction_percent) + (reduction_price * currencyRate);
        var priceProduct = productPriceWithoutReduction2 - priceReduct;
        var productPricePretaxed = (productPriceWithoutReduction2 - priceReduct) / tax;

        if (displayPrice == 1)
        {
            priceProduct = productPricePretaxed;
            productPriceWithoutReduction2 /= tax;
        }

        if (group_reduction)
            priceProduct *= group_reduction;
        $('#our_price_display').text(formatCurrency(priceProduct, currencyFormat, currencySign, currencyBlank));
        $('#pretaxe_price_display').text(formatCurrency(productPricePretaxed, currencyFormat, currencySign, currencyBlank));
        $('#old_price_display').text(formatCurrency(productPriceWithoutReduction2, currencyFormat, currencySign, currencyBlank));
        $('#ecotax_price_display').text(formatCurrency(selectedCombination['ecotax'], currencyFormat, currencySign, currencyBlank));
    }
}

//update display of the large image
function displayImage(domAAroundImgThumb)
{
    if (domAAroundImgThumb.attr('href'))
    {
        var newSrc = domAAroundImgThumb.attr('href').replace('thickbox','large');
        if ($('#bigpic').attr('src') != newSrc)
        { 
            $('#bigpic').fadeOut('fast', function(){
                $(this).attr('src', newSrc).show();
                if (typeof(jqZoomEnabled) != 'undefined' && jqZoomEnabled)
                    $(this).attr('alt', domAAroundImgThumb.attr('href'));
            });
        }
        $('#views_block li a').removeClass('shown');
        $(domAAroundImgThumb).addClass('shown');
    }
}

// Serialscroll exclude option bug ?
function serialScrollFixLock(event, targeted, scrolled, items, position)
{
    serialScrollNbImages = $('#thumbs_list li:visible').length;
    serialScrollNbImagesDisplayed = 3;
    
    var leftArrow = position == 0 ? true : false;
    var rightArrow = position + serialScrollNbImagesDisplayed >= serialScrollNbImages ? true : false;
    
    $('a#view_scroll_left').css('cursor', leftArrow ? 'default' : 'pointer').css('display', leftArrow ? 'none' : 'block').fadeTo(0, leftArrow ? 0 : 1);     
    $('a#view_scroll_right').css('cursor', rightArrow ? 'default' : 'pointer').fadeTo(0, rightArrow ? 0 : 1).css('display', rightArrow ? 'none' : 'block');
    return true;
}

// Change the current product images regarding the combination selected
function refreshProductImages(id_product_attribute)
{
    $('#thumbs_list_frame').scrollTo('li:eq(0)', 700, {axis:'x'});
    $('#thumbs_list li').hide();
    id_product_attribute = parseInt(id_product_attribute);

    if (typeof(combinationImages) != 'undefined' && typeof(combinationImages[id_product_attribute]) != 'undefined')
    {
        for (var i = 0; i < combinationImages[id_product_attribute].length; i++)
            $('#thumbnail_' + parseInt(combinationImages[id_product_attribute][i])).show();
    }
    $('#thumbs_list_frame').width((parseInt(($('#thumbs_list_frame >li').width())* i) + 3) + 'px'); //  Bug IE6, needs 3 pixels more ?
    $('#thumbs_list').trigger('goto', 0);
    serialScrollFixLock('', '', '', '', 0);// SerialScroll Bug on goto 0 ?
}

//To do after loading HTML
$(document).ready(function()
{
    //init the serialScroll for thumbs
    $('#thumbs_list').serialScroll({
        items:'li:visible',
        prev:'a#view_scroll_left',
        next:'a#view_scroll_right',
        axis:'x',
        offset:0,
        start:0,
        stop:true,
        onBefore:serialScrollFixLock,
        duration:700,
        step: 2,
        lazy: true,
        lock: false,
        force:false,
        cycle:false
    });
    
    $('#thumbs_list').trigger('goto', 1);// SerialScroll Bug on goto 0 ?
    $('#thumbs_list').trigger('goto', 0);

    //hover 'other views' images management
    $('#views_block li a').hover(
        function(){displayImage($(this));},
        function(){}
    );
    
    //set jqZoom parameters if needed
    if (typeof(jqZoomEnabled) != 'undefined' && jqZoomEnabled)
    {
        $('img.jqzoom').jqueryzoom({
            xzoom: 200, //zooming div default width(default width value is 200)
            yzoom: 200, //zooming div default width(default height value is 200)
            offset: 21 //zooming div default offset(default offset value is 10)
            //position: "right" //zooming div position(default position value is "right")
        });
    }

    //add a link on the span 'view full size' and on the big image
    $('div#image-block img').click(function(){
        $('#views_block li a.shown').click();
    });

    // Hide the customization submit button and display some message
    $('p#customizedDatas input').click(function() {
        $('p#customizedDatas input').hide();
        $('p#customizedDatas').append('<img src="' + img_ps_dir + 'loader.gif" alt="" /> ' + uploading_in_progress);
    });

    //init the price in relation of the selected attributes
    if (typeof productHasAttributes != 'undefined' && productHasAttributes)
        findCombination(true);

    //
    $('a#resetImages').click(function() {
        updateColorSelect(0);
    });
});

function saveCustomization()
{
    $('#quantityBackup').val($('#quantity_wanted').val());
    $('body select[@id^="group_"]').each(function() {
        $('#customizationForm').attr('action', $('#customizationForm').attr('action') + '&' + this.id + '=' + parseInt(this.value));
    });
    $('#customizationForm').submit();
}