function ecf_PurchaseModule_OnAccessoriesUpdate(source, accessories) {
    ecf_PurchaseModule_InitAccessoryCheckboxes();
}

//gets sku details based on the current attribute selection.
//no need to select all dropdowns of the attributes.
function ecf_PurchaseModule_PurchaseOptionChanged1(dropids) {
    document.getElementById("__ECFPURCHASEMODULE_ITEMID").value = dropids.options[0].value;
    m_ecf_PurchaseModule_VariationId = dropids.options[0].value;
    ecf_PurchaseModule_InitAccessoryCheckboxes();
}

function ecf_PurchaseModule_UpdatePrices(source, accessories) {
    if (source != null) {
        if (!source.checked) {
            accessories[0] = -source.getAttribute('accessoryid');
        }
    }

    try {
        Ignify.eCommerce.Web.Store.MasterTemplates.Ignify.Modules.SharedModules.PurchaseModule.UpdatePrice(m_ecf_PurchaseModule_ProductId, m_ecf_PurchaseModule_VariationId, m_ecf_PurchaseModule_CurrencyCode, accessories, function(result) { ecf_PurchaseModule_UpdatePricesCallback(result, source); });
    }
    catch (error) {
        ecf_PurchaseModule_ToggleAccessoryCheckboxes(false);
    }
}

function ecf_PurchaseModule_UpdatePricesCallback(result, source) {
    //var listPrice = document.getElementById(m_ecf_PurchaseModule_ListPriceControlId);
    //var finalPrice = document.getElementById(m_ecf_PurchaseModule_FinalPriceControlId);
    //var discountPrice = document.getElementById(m_ecf_PurchaseModule_DiscountPriceControlId);
    var itemCode = document.getElementById(m_ecf_PurchaseModule_ItemCodeControlId);
    //var availability = document.getElementById(m_ecf_PurchaseModule_AvailabilityControlId);
    var priceListControl = document.getElementById(m_ignify_PurchaseModule_PriceListControlId);
    var qtyPricingControl = document.getElementById(m_ecf_PurchaseModule_QtyPricingControlId);

    if (result.error != null) {
        //alert("AJAX: Error occured while processing the request, refresh the page. Message: " + result.error.Message + ", code: " + result.error.Code);
        ecf_PurchaseModule_ToggleAccessoryCheckboxes(false);
        return;
    }

    if (result.value == null || result.value.length < 3)
        return;

    //listPrice.innerHTML = result.value[0];
    //finalPrice.innerHTML = result.value[1];
    //if(discountPrice != null)
    //    discountPrice.innerHTML = result.value[2];

    if (result.value.length >= 4)
        itemCode.innerHTML = result.value[3];

    //if(result.value.length >= 5)        
    //availability.innerHTML = result.value[4];

    if (result.value.length >= 6)
        priceListControl.innerHTML = result.value[5];
    if (result.value.length >= 7 && qtyPricingControl != "undefined" && qtyPricingControl != null)
        qtyPricingControl.innerHTML = result.value[6];
}

function ecf_PurchaseModule_PurchaseOptionChanged(source) {
    if (ecf_PurchaseModule_DropdownArray.length > 1) {
        var i;
        var attribute;
        var arrListAttribute;
        var AttributeNames = "";
        var AttributeValues = "";

        for (i = 0; i < ecf_PurchaseModule_DropdownArray.length; i++) {
            attribute = document.getElementById(ecf_PurchaseModule_DropdownArray[i]);
            arrListAttribute = attribute.value.split("~~");

            if (AttributeNames.length == 0) {
                AttributeNames = arrListAttribute[0];
                AttributeValues = arrListAttribute[1];
            }
            else {
                AttributeNames = AttributeNames + "~~" + arrListAttribute[0];
                AttributeValues = AttributeValues + "~~" + arrListAttribute[1];
            }
        }

        Ignify.eCommerce.Web.Store.MasterTemplates.Ignify.Modules.SharedModules.PurchaseModule.getSKUIdByAttributes(m_ecf_PurchaseModule_ProductId, AttributeNames, AttributeValues, function(result) { ecf_PurchaseModule_PopulateSKUId(result); });
    }
    else {
        m_ecf_PurchaseModule_VariationId = source.value;
        document.getElementById("__ECFPURCHASEMODULE_ITEMID").value = m_ecf_PurchaseModule_VariationId;
        ecf_PurchaseModule_InitAccessoryCheckboxes();
    }
}

function ecf_PurchaseModule_PopulateSKUId(result) {

    if (result.error != null) {
        //alert("AJAX: Error occured while populating Attribute. Message: " + result.error.Message + ", code: " + result.error.Code);
        return;
    }

    if (result.value != null) {
        m_ecf_PurchaseModule_VariationId = result.value[0];
        document.getElementById("__ECFPURCHASEMODULE_ITEMID").value = m_ecf_PurchaseModule_VariationId;
        ecf_PurchaseModule_InitAccessoryCheckboxes();
    }
    else {
        alert("AJAX: No SKU found.");
        return;
    }

}

function ecf_PurchaseModule_Init() {
    window.onload = function() { ecf_PurchaseModule_InitAccessoryCheckboxes2(true); ecf_PurchaseModule_InitOptionLists(); };
}
function populateNextAttribute(currentsource) {
    //debugger;
    var i, x, y;
    var nextattribute;
    var arrListAttribute;
    var listAttributeNames = "";
    var listAttributeValues;
    var nextAttributeName;
    for (i = 0; i <= ecf_PurchaseModule_DropdownArray.length - 1; i++) {
        attribute = document.getElementById(ecf_PurchaseModule_DropdownArray[i]);
        arrListAttribute = attribute.value.split("~~");

        if (listAttributeNames.length == 0) {
            listAttributeNames = arrListAttribute[0];
            listAttributeValues = arrListAttribute[1];
        }
        else {
            listAttributeNames = listAttributeNames + "~~" + arrListAttribute[0];
            listAttributeValues = listAttributeValues + "~~" + arrListAttribute[1];
        }
        if (attribute.id == currentsource.id) {
            nextattribute = document.getElementById(ecf_PurchaseModule_DropdownArray[i + 1]);
            for (x = i + 1; x < ecf_PurchaseModule_DropdownArray.length; x++) {
                removeattribute = document.getElementById(ecf_PurchaseModule_DropdownArray[x]);
                removeattribute.length = 1;
                //for(y = 1; y < removeattribute.options.length; y++)
                //{
                //    removeattribute.options[y] = null;   
                //}
            }
            break;
        }
    }
    nextAttributeName = nextattribute.value.split("~~");

    //    alert("m_ecf_PurchaseModule_ProductId=" + m_ecf_PurchaseModule_ProductId);
    //    alert("listAttributeNames=" + listAttributeNames);
    //    alert("listAttributeValues=" + listAttributeValues);
    //    alert("nextAttributeName=" + nextAttributeName[0]);    
    Ignify.eCommerce.Web.Store.MasterTemplates.Ignify.Modules.SharedModules.PurchaseModule.PopulateNextAttribute(m_ecf_PurchaseModule_ProductId, listAttributeNames, listAttributeValues, nextAttributeName[0], function(result) { ecf_PurchaseModule_PopulateNextAttribute(result, nextattribute, nextAttributeName[0]); });
}

function ecf_PurchaseModule_PopulateNextAttribute(result, nextattribute, nextAttributeName) {
    if (result.error != null) {
        //alert("AJAX: Error occured while populating Attribute. Message: " + result.error.Message + ", code: " + result.error.Code);
        return;
    }

    //    if(result.value == null || result.value.length == 0)
    //    {
    //        alert("AJAX: No Attribute Value found.");
    //        return;
    //    }

    if (result.value != null) {
        for (var i = 0; i < result.value.length; i++) {
            var nextAttributeValue = result.value[i];
            nextattribute.options[nextattribute.length] = new Option(nextAttributeValue, nextAttributeName + "~~" + result.value[i]);
        }
    }
}


function ecf_PurchaseModule_InitOptionLists() {
   //debugger;
    if (typeof (ecf_PurchaseModule_DropdownArray) == "undefined")
        return;

    initDynamicOptionLists();

    if (ecf_PurchaseModule_DropdownArray.length > 1) {
        var i = 0;
        for (i = 0; i < ecf_PurchaseModule_DropdownArray.length - 1; i++) {
            document.getElementById(ecf_PurchaseModule_DropdownArray[i]).onchange = new Function("populateNextAttribute(this)");
        }
        document.getElementById(ecf_PurchaseModule_DropdownArray[ecf_PurchaseModule_DropdownArray.length - 1]).onchange = new Function("ecf_PurchaseModule_PurchaseOptionChanged(this)");
        for (var index = 0; index < ecf_PurchaseModule_DropdownArray.length; index++) {
            var dropdown = document.getElementById(ecf_PurchaseModule_DropdownArray[index]);
            if (dropdown != null && dropdown.options.Length > 0)
                dropdown.options[0].selected = true;
        }
    }
}

function ecf_PurchaseModule_InitAccessoryCheckboxes() {
    ecf_PurchaseModule_InitAccessoryCheckboxes2(false);
}

function ecf_PurchaseModule_InitAccessoryCheckboxes2(onload) {
    // get array length
    var arrayLength = 0;
    var hasCheckedControls = false;
    for (var index = 0; index < ecf_PurchaseModule_CheckboxesArray.length; index++) {
        var checked = document.getElementById(ecf_PurchaseModule_CheckboxesArray[index]);
        if (checked.checked)
            arrayLength++;
    }

    // populate array
    var items = new Array(arrayLength);
    for (var index = 0; index < ecf_PurchaseModule_CheckboxesArray.length; index++) {
        var checked = document.getElementById(ecf_PurchaseModule_CheckboxesArray[index]);
        var id = document.getElementById(ecf_PurchaseModule_CheckboxesArray[index]).getAttribute('accessoryid');

        if (checked.checked) {
            hasCheckedControls = true;
            items[index] = id;
        }
    }

    // don't update on first visit if checkbox-es are not checked, they will be checked only if back button is clicked    
    if ((onload && hasCheckedControls) || !onload)
        ecf_PurchaseModule_UpdatePrices(null, items);
}

function ecf_PurchaseModule_ToggleAccessoryCheckboxes(check) {
    for (var index = 0; index < ecf_PurchaseModule_CheckboxesArray.length; index++) {
        var checked = document.getElementById(ecf_PurchaseModule_CheckboxesArray[index]);
        checked.checked = check;
    }
}