var App_Promo_Admin_Form = qs.createObject();

App_Promo_Admin_Form.prototype = {

    options: {
        isRelatedId: 'isRelated',
        productId: 'productId',

        hasNoExpirationDateId: 'hasNoExpirationDate',
        endDateId: 'endDate',
        codeId: 'code',
        newCardCodeId: 'newCardCode'
    },
    hintOptions: {
        useWrapper: true,
        elements: [{selector: 'input[name=_productId]', hint: 'Autocomplete field'}]
    },

    initialize: function (options)
    {
        this.options = $.extend(this.options, options);

        this.form = $('#' + this.options.formId);
        if (!$(this.form).size()) {
            alert('Error: form "' + this.options.formId + '" was not found');
            return;
        }

        $(this.form).defaultHint(this.hintOptions);

        $('#' + this.options.isRelatedId).bind('change', _.bind(this.isRelatedOnChange, this));
        this.isRelatedOnChange();

        $('#' + this.options.hasNoExpirationDateId).bind('change', _.bind(this.hasNoExpirationDateOnChange, this));
        this.hasNoExpirationDateOnChange();

        $('#' + this.options.newCardCodeId).bind('click', _.bind(this.generateCode, this));
    },

    isRelatedOnChange: function ()
    {
        var display = 'none';
        if ($('#' + this.options.isRelatedId).val() == 'y') {
            display = 'block';
        }
        this.toggleView(this.options.productId, display);
    },

    hasNoExpirationDateOnChange: function ()
    {
        var display = 'block';
        if ($('#' + this.options.hasNoExpirationDateId).is(':checked')) {
            display = 'none';
        }
        this.toggleView(this.options.endDateId, display);
    },

    toggleView: function (elementId, display)
    {
        $('#' + elementId + '-label, #' + elementId + '-element').css('display', display);
    },

    generateCode: function()
    {
        var deferred = qs.ajax(qs.constant('BASE_URL') + '/' + qs.constant('CURRENT_PAGE'), {action: 'generateCode'});
        deferred.done(_.bind(this.updateCode, this));
    },

    updateCode: function(data)
    {
        var code = '';
        if (data.code) {
            code = data.code;
        } else {
            alert('Code is not created.');
        }
        $('#' + this.options.codeId).val(code);
    }
};