if (!AJS.CRU) {
    AJS.CRU = {};
}
if (!AJS.CRU.REVIEW) {
    AJS.CRU.REVIEW = {};
}
if (!AJS.CRU.REVIEW.EMAILCOMMENTS) {
    AJS.CRU.REVIEW.EMAILCOMMENTS = {};
}

(function() {
    var dialog;
    var self = AJS.CRU.REVIEW.EMAILCOMMENTS;

    var nextButton = function () {};
    var previousButton = function () {};

    self.showPage = function (pageId) {

        AJS.$(".email-wizard", "#emailWizardDialog").each(function() {
            if (AJS.$(this).is('#' + pageId)) {
                AJS.$(this).show();
            } else {
                AJS.$(this).hide();
            }
        });
        AJS.$("#emailWizardDialog").find(".previousButton, .nextButton, .cancelButton").each(function() {
            AJS.$(this)
                .attr('disabled', false)
                .show();
        });

        if (pageId === 'recipients') {
            AJS.$(".nextButton", "#emailWizardDialog").html("Next");
            nextButton = function () {
                self.showPage('message');
            };
            AJS.$(".previousButton", "#emailWizardDialog")
                    .hide();
            previousButton = function () {};

        } else if (pageId === 'message') {
            AJS.$(".nextButton", "#emailWizardDialog").html("Send");
            nextButton = function () {
                var $form = AJS.$("#emailWizardDialog form#emailCommentsForm");
                var url = $form.attr('action');
                AJS.$(".nextButton", "#emailWizardDialog").attr("disabled", true);
                AJS.FECRU.AJAX.ajaxUpdate(url, $form.serialize(), "dialogPanel");
            };
            previousButton = function () {
                self.showPage('recipients');
            };

        } else if (pageId === 'sent') {
            AJS.$(".nextButton", "#emailWizardDialog").html("Close");
            nextButton = function () {
                dialog.remove();
            };
            previousButton = function () {
                self.showPage('message');
            };
        }
    };

    self.start = function (permaId) {

        dialog = AJS.CRU.DIALOG.ajaxDialog(900, 600, {}, "emailWizardDialog", "hover-over")
            .addHeader("Email Review Comments")
            .addPanel("Recipients", "<div id='dialogPanel'>Loading...</div>")
            .addButton("Cancel", function(dialog) {
                dialog.remove();
            }, "cancelButton")
            .addButton("Previous", function() {
                previousButton();
            }, "previousButton")
            .addButton("Next", function() {
                nextButton();
            }, "nextButton")
            .show();

        var url = AJS.CRU.UTIL.jsonUrlBase(permaId) + "/allcommentsemail";

        var ajax = AJS.FECRU.AJAX;
        ajax.startSpin("dialogPanel", "email-spinner");
        ajax.ajaxUpdate(url, {}, "dialogPanel", function () {
            ajax.stopSpin(AJS.$('#dialogPanel'));
            AJS.$("form#emailCommentsForm").find("#to").focus();
        });
    };
} )();