var App_ECommerce_Checkout = {
    _rateAction: 'getShippingRate',
    _rateTimeout: null,
    _shippingElementId: 'serviceShipping-type-element',
    _paymentElementId: 'servicePayment-type-element',
    _rateElementId: 'serviceShipping-rate-element',
    _form: null,
    _cardTipClass: 'cardCode-tip',
    _shippingAjaxRequest: undefined,

    _paymentSectionSelector: '#servicePayment-element fieldset dl',
    _paymentIsNotApplicableId: 'paymentIsNotApplicable',

    _orderTotalElementId: 'orderTotal-element',
    _cartSummaryElementId: 'cartSummary',
    _cartSummaryContainer: null,
    _cartSummarySubtotalFields: ['subtotal', 'shippingRate', 'shippingHandling', 'tax', 'promo', 'giftCard'],
    _cartSummaryTotalElementId: 'subtotal-price-container',

    _options: {
        noPaymentMessage: '',
        isErrors: null,
        orderTotal: 0,
        response: {
            elementsErrors: {
                length: 0
            }
        }
    },

    init: function(formId, options)
    {
        if (!formId) {
            return;
        }

        this._form = $('#' + formId);
        this._options = $.extend({}, options);
        var obj = this;

        this.initTaxCloudDestinationAddress();

        this._cartSummaryContainer = $('#' + this._cartSummaryElementId);
        if (!$(this._cartSummaryContainer).size()) {
            this._cartSummaryContainer = null;
        }

        var shippingElements = $('#' + this._shippingElementId + ' input[type=radio]');
        if ($(shippingElements).size()) {
            this._updateShippingRate();
            shippingElements.change(function() {
                obj._onShippingClick(this);
            });

            var shippingChecked = undefined;
            if (1 == $(shippingElements).size()) {
                shippingChecked = shippingElements.find('input');
            } else {
                shippingChecked = shippingElements.filter('input:checked');
            }
            obj._onShippingClick(shippingChecked);

            this._initFedexAddressType();
            this._updateFedexAddressType();
            $('.shipping, #' + this._shippingElementId).find('input').bind('click', function() { obj._updateShippingRate(); });

            $('[name*="[state]"], [name*="[zip]"]').change(function(){
                obj._updateShippingRate();
            });
        }

        var paymentElements = $('#' + this._paymentElementId);
        if ($(paymentElements).size()) {
            var cvvTip = $('.' + obj._cardTipClass);
            if (!qs.constant('IS_TOUCHSCREEN')) {
                $(cvvTip).tooltip({html: true, trigger: 'hover'});
            } else {
                $(cvvTip).tooltip({html: true, trigger: 'click'});

                var hitEvent = ('ontouchstart' in document.documentElement ? 'touchstart' : 'click') + '.cvvTip';
                $(document).bind(hitEvent, function (e) {
                    if (!$(e.target).closest('.' + obj._cardTipClass).size()) {
                        var tooltipElement = $('.' + obj._cardTipClass);
                        if ($(tooltipElement).size() && $(tooltipElement).next('.tooltip').size()) {
                            $(cvvTip).tooltip('hide');
                        }
                    }
                });
            }

            paymentElements.find('input').change(function() { obj._onPaymentClick(this); });

            var paymentChecked = paymentElements.find('input:checked');
            obj._onPaymentClick(paymentChecked);
        }

        app.user.form.prototype.onAsBillingClick = obj.onAsBillingClick;

        $('[name^="billing["]', this._form).each(function () {
            $(this).blur(function () { obj._populateShippingInfo(obj._form); });
        });

        if (this._options.isErrors) {
            this.displayErrorsAlert();
        }

        if (0 == this._options.orderTotal) {
            this._hidePaymentSection();
        }
    },

    getTaxCloudDestinationAddressType: function ()
    {
        var data = qs.Array.expand(Qs_Form.toObject(this._form.get(0)));
        return (typeof data.shipping == 'undefined' || 'y' == data.shipping.asBilling) ? 'billing' : 'shipping';
    },

    initTaxCloudDestinationAddress: function ()
    {
        $('#' + this.getTaxCloudDestinationAddressType() + '-element').find(
            '[name*=address], [name*=city], [name*=state], [name*=zip]'
        ).change(
            _.bind(this.destinationAddressOnChange, this)
        );
    },

    destinationAddressOnChange: function () {
        console.log('destinationAddressOnChange');
        if (!this.isDestinationAddressFilled()) {
            return;
        }
        var request = Qs_Form.toObject(this._form.get(0));
        request.action = 'validateTaxCloudDestinationAddress';
        Qs_Form.removeElementsErrors(this._form.get(0));
        qs.ajax(qs.constant('BASE_URL') + '/' + qs.constant('CURRENT_PAGE'), request).success(
            _.bind(this.destinationAddressChangeOnSuccess, this)
        );
    },

    isDestinationAddressFilled: function ()
    {
        var data = qs.Array.expand(Qs_Form.toObject(this._form.get(0)));
        var address = _.pick(data[this.getTaxCloudDestinationAddressType()], 'address', 'city', 'state', 'zip');
        for (var field in address) {
            if (!address.hasOwnProperty(field)) {
                continue;
            }
            var value = _.str.trim(address[field]);
            if (!value.length) {
                return false;
            }
        }
        return true;
    },

    destinationAddressChangeOnSuccess: function (response) {
        var fieldset = this._form.find('#fieldset-billing').get(0);
        if (!response.isValid) {
            if (response.formErrors && response.formErrors.length) {
                Qs_Form.displayFromErrorsHtml(fieldset, response.formErrors, 'append');
            }
            if (response.elementsErrors && response.elementsErrors.length) {
                Qs_Form.displayErrorsHtml(fieldset, response.elementsErrors);
            }
        }
        $('#' + this._orderTotalElementId).html(response.cartSummaryHtml);
    },

    _hidePaymentSection: function()
    {
        var obj = this;
        $(obj._paymentSectionSelector).hide();
        $('#' + obj._paymentIsNotApplicableId).remove();
        $('<dl id="' + obj._paymentIsNotApplicableId + '"><dd>' + obj._options.noPaymentMessage + '</dd></dl>').insertAfter($(obj._paymentSectionSelector + ':first'));

    },

    _showPaymentSection: function()
    {
        var obj = this;
        $('#' + obj._paymentIsNotApplicableId).remove();
        $(obj._paymentSectionSelector).show();
    },

    displayErrorsAlert: function ()
    {
        var message = 'Please review the comments marked in red and make appropriate corrections.';
        alert(_.str.trim(message));

        if (typeof this._options.response.elementsErrors.length) {
            var focusKey = null;
            var scrollToKey = null;
            var element = null;

            for (var i in this._options.response.elementsErrors) {
                element = this._options.response.elementsErrors[i];

                if (0 == $('#' + element.id, this._form).size()) {
                    /* check if it is radio button */
                    var radio = $('#' + element.id + '-element input[id^=' + element.id + '][type=radio]', this._form).first();
                    if ($(radio).size()) {
                        scrollToKey = element.id;
                    }
                } else {
                    if ($('#' + element.id, this._form).prop('focus')) {
                        focusKey = element.id;
                        scrollToKey = element.id;
                    }
                }

                if (!scrollToKey) {
                    continue; /* якщо не знайшли куди скролити, то переходимо до наступного елементу */
                }

                if (focusKey && $('#' + focusKey + ':visible', this._form).size()) {
                    $('#' + focusKey, this._form).focus();
                }

                if (scrollToKey && $.scrollTo) {
                    var labelKey = scrollToKey + '-label';
                    var elementKey = scrollToKey + '-element';

                    if ($('#' + labelKey + ':visible').size()) {
                        $.scrollTo('#' + labelKey);
                    } else if ($('#' + elementKey + ':visible').size()) {
                        $.scrollTo('#' + elementKey);
                    } else {
                        scrollToKey = $('#' + elementKey).closest('fieldset').attr('id');
                        $.scrollTo('#' + scrollToKey);
                    }
                }

                break; /* якщо виконання дойшло сюди, то сторінка проскролена до потрібного елементу, перериваємо цикл */
            }
        }
    },

    _parsePrice: function(str)
    {
        str = '' + str;

        if ('$' == str.charAt(0)) {
            str = str.substr(1);
        }

        str = str.replace(/[, ]+/, '');

        str = parseFloat(str);
        if (isNaN(str)) {
            str = 0.0;
        }
        return str
    },

    _ucfirst: function(str)
    {
        var f = str.charAt(0).toUpperCase();
        return f + str.substr(1, str.length - 1);
    },

    _cartSummarySetPrice: function(field, value)
    {
        value = this._parsePrice(value);
        field = this._ucfirst(field);
        var container = $('.cart' + field, this._cartSummaryContainer);
        var html = '$' + _.num.format(value, 2);
        if ('Promo' == field || 'GiftCard' == field) {
            html = '-' + html;
        }
        $(container).html(html);
        if (value > 0) {
            $(container).closest('div').removeClass('hidden');
        } else {
            $(container).closest('div').addClass('hidden');
        }
    },

    _cartSummaryUpdate: function(summary)
    {
        if (!this._cartSummaryContainer) {
            return;
        }

        for (var i in this._cartSummarySubtotalFields) {
            var field = this._cartSummarySubtotalFields[i];
            this._cartSummarySetPrice(field, summary[field]);
        }

        var total = this._parsePrice(summary.total);
        $('#' + this._cartSummaryTotalElementId).html('$' + _.num.format(total, 2));

        if (0 == total) {
            this._hidePaymentSection()
        } else {
            this._showPaymentSection();
        }

    },

    _initFedexAddressType: function()
    {
        var obj = this;
        $('#serviceShipping-fedExAddressType-residential').bind('change', function() { obj._updateFedexAddressType() });
        $('#serviceShipping-fedExAddressType-commercial').bind('change', function() { obj._updateFedexAddressType() });
    },

    _updateFedexAddressType: function()
    {
        var residential = $('#serviceShipping-fedExAddressType-residential');
        var commercial = $('#serviceShipping-fedExAddressType-commercial');
        if (residential.size() && commercial.size()) {
            var ground = $('label[for="serviceShipping-fedExMethod-FEDEXGROUND"]');
            var home = $('label[for="serviceShipping-fedExMethod-GROUNDHOMEDELIVERY"]');
            if (residential.is(':checked')) {
                ground.hide();
                ground.next('br').hide();

                home.next('br').show();
                home.show();

                if ($('input', ground).is(':checked')) {
                    $('input', home).prop('checked', 'checked');
                }
            } else if (commercial.is(':checked')) {
                home.next('br').hide();
                home.hide();

                ground.next('br').show();
                ground.show();

                if ($('input', home).is(':checked')) {
                    $('input', ground).prop('checked', 'checked');
                }
            }
        }
    },

    _populateShippingInfo: function(_form)
    {
        var asBilling = $('#shipping-asBilling', _form);
        if ($(asBilling).is(':checked')) {
            $('[name^="billing["]', this._form).each(function () {
                var shippingFieldName = $(this).attr('name').replace('billing[', 'shipping[');
                var shippingField = $('[name="' + shippingFieldName + '"]');
                if ($(shippingField).size()) {
                    $(shippingField).val($(this).val());
                }
            });
        }
    },

    _onShippingClick: function(element)
    {
        $('.shipping').closest('dd' ).hide();
        if ($(element).size()) {
            $('#serviceShipping-' + $(element).val() + 'Methods-element').show();
        }
    },

    _onPaymentClick: function(element)
    {
        $('.payment').closest('dd').hide();
        $('#servicePayment-' + $(element).val() + 'Methods-element').show();
    },

    _updateShippingRate: function()
    {
        var obj = this;
        if (obj._rateTimeout) {
            clearTimeout(obj._rateTimeout);
        }
        obj._rateTimeout = setTimeout(function() { obj._getShippingRate(); }, 300);
    },

    _getShippingRate: function()
    {
        var request = {};
        $.each(this._form.serializeArray(), function(i, field) {
            request[field.name] = field.value;
        });
        request.action = this._rateAction;
        var obj = this;

        if (typeof this._shippingAjaxRequest != 'undefined') {
            this._shippingAjaxRequest.abort();
            this._shippingAjaxRequest = undefined;
        }

        this._shippingAjaxRequest = qs.ajax(
            qs.constant('BASE_URL') + '/' + qs.constant('CURRENT_PAGE'),
            request,
            { qsDefaultCallbacks: false }
        );

        this._shippingAjaxRequest.done(function (response) {
            qs.hideLoading();

            if (!response || response.isError) {
                var errorCallback = (response && response.errorCallback)
                    ? response.errorCallback
                    : {fn: qs.errorCallback, args: [response]};
                qs.call(errorCallback);
                return this;
            }

            if (response && response.callbacks) {
                qs.call(response.callbacks);
            }

            var html = '$' + parseFloat(response.total).toFixed(2);
            if (response.message != '' && response.message) {
                html += '<div class="alert alert-block alert-error">' + response.message + '</div>';
            }
            $('#' + obj._rateElementId).html(html);


            if (_.isObject(response.cartSummary)) {
                obj._cartSummaryUpdate(response.cartSummary);
            }

            return this;
        });

        this._shippingAjaxRequest.fail(function (xhr, textStatus, errorThrown) {
            qs.hideLoading();

            if ('abort' == textStatus) {
                return this;
            }

            /*if (xhr.status = 0 && xhr.statusText == 'error') {
                // retry
            }*/

            qs.debug.debug('qs.ajax: Ajax request failed: ', textStatus, xhr);
            var message = (qs.constant('DEBUG'))
                ? xhr.responseText
                : textStatus + ' ' + errorThrown;
            alert(message);

            return this;
        });

        this._shippingAjaxRequest.always(function () {
            obj._shippingAjaxRequest = undefined;
        })
    },

    onAsBillingClick: function (asBilling, type)
    {
        for (var i = 0; i < this.options.addressFields.length; i++) {
            var name = this.options.addressFields[i];
            var selector = '#' + type + '-' + name;
            if ($(asBilling).is(':checked')) {
                $(selector).attr('disabled', 'disabled');
                this.setElementValue(type, name, this.getElementValue(this.options.inheritedAddress, name));
            } else {
                if ($(selector).attr('disabled') == 'disabled') {
                    $(selector).removeAttr('disabled');
                    /*this.setElementValue(type, name, '');*/
                }
            }
        }

        if ($('#' + App_ECommerce_Checkout._shippingElementId).size()) {
            App_ECommerce_Checkout._updateShippingRate();
        }

        return true;
    }
};

var App_ECommerce_Checkout_OtherServices = {
    _containerId: null,
    _tooltipTimeout: 3000,

    init: function(id)
    {
        this._containerId = id;
        $('#' + this._containerId).find('input[type=checkbox]').click(function() {
            var valueFieldId = $(this).attr('id') + 'Value-element' ;
            var valueField = $('#' + valueFieldId);
            if ($(this).is(':checked')) {
                valueField.show();
            } else {
                valueField.hide();
            }
        });
    },

    _removeErrors: function()
    {
        $('#' + this._containerId).find('ul.errors').remove();
    },

    _addErrors: function(message, afterContainer)
    {
        afterContainer.after('<ul class="errors"><li>' + message + '</li></ul>');
    },

    applyDiscount: function(requestAction, element, postCallback)
    {
        this._removeErrors();
        var obj = this;
        var request = {
            code: $(element).parent().children('input').val(),
            action: requestAction
        };
        qs.ajax(qs.constant('BASE_URL') + '/' + qs.constant('CURRENT_PAGE'), request).done(function(data) {
            if (!data.success) {
                obj._addErrors(data.message, $(element));
            } else {
                var inputId = $(element).parent().children('input').attr('id');
                var checkboxId = inputId.replace('Value', '');
                var staticId = checkboxId + 'Static';


                $('#' + checkboxId + '-label').hide();
                $('#' + checkboxId + '-element').hide();
                $('#' + checkboxId + '-element input[type=checkbox]').attr('checked', false);

                $('#' + inputId + '-label').hide();
                $('#' + inputId + '-element').hide();
                $('#' + inputId + '-element input[type=text]').val('');

                $('#' + staticId + '-element').html(data.elementValue).show();

                if (_.isObject(data.cartSummary)) {
                    App_ECommerce_Checkout._cartSummaryUpdate(data.cartSummary);
                }

                if (_.isFunction(postCallback)) {
                    postCallback.call(obj, data)
                }
            }
        }).fail(function(status) {
            alert(status.responseText);
        });
    },

    removeDiscount: function (requestAction, element, postCallback)
    {
        this._removeErrors();
        var obj = this;
        var request = {
            action: requestAction
        };
        qs.ajax(qs.constant('BASE_URL') + '/' + qs.constant('CURRENT_PAGE'), request).done(function(data) {
            if (!data.success) {
                obj._addErrors(data.message, $(element));
            } else {
                var staticElementId = $(element).closest('dd').attr('id');
                var checkboxElementId = staticElementId.replace(/Static-element$/, '-element');

                $('#' + staticElementId).html('').hide();
                $('#' + checkboxElementId).show();

                if (_.isObject(data.cartSummary)) {
                    App_ECommerce_Checkout._cartSummaryUpdate(data.cartSummary);
                }

                if (_.isFunction(postCallback)) {
                    postCallback.call(obj, data)
                }
            }
        }).fail(function(status) {
            alert(status.responseText);
        });
    },

    applyPromoCode: function(element)
    {
        this.applyDiscount('applyPromoCode', element);
    },

    removePromoCode: function(element)
    {
        this.removeDiscount('removePromoCode', element);
    },

    applyGiftCard: function(element)
    {
        this.applyDiscount('applyGiftCard', element);
    },

    removeGiftCard: function(element)
    {
        this.removeDiscount('removeGiftCard', element);
    }
};