(function() {
    /**
     *
     */
    var iFRAME_SRC = "https://us-central1-feedback-kit.cloudfunctions.net/api/feedback?uid=prod_statement_download&timestamp=1714212100947";

    var TTL = '2592000';
    var INSTANCE_ID = 'feedback_prod_statement_download';
    var STATUS = 'hidden';

    /**
     *   Check if iframe is loaded
     */
    var iFrameLoaded = false
    var feedback_kit_iframe = null;
    var loader = null;

    /**
     *   Styles
     */
    var iFrameStyle = "z-index: 99999999999999999;height: 98%;width: 100%;display: none;margin: auto;background: rgba(96,96,96,.2); position: fixed;top:0;bottom:0;left:0;right:0";
    var loaderStyle = "z-index: 99999999999999998;height: 98%;width: 100%;display: block;margin: auto; text-align: center;position:fixed;fixed;top:0;bottom:0;left:0;right:0;background-position: center; background:url(img/loader.gif);background-repeat: no-repeat;background-attachment: fixed;background-position: center;";

    /**
     *   Cross origin communication
     */

    var fnMap = {
        show: showFn,
        hide: hideFn,
    }

    window['statement_download_feedback_type'] = fnMap



    /**
     *   Load IFrame
     */
    function loadFn(callback) {
        if (feedback_kit_iframe === null) {

            // Create IFrame
            feedback_kit_iframe = document.createElement("IFRAME");

            // Set ID
            feedback_kit_iframe.id = INSTANCE_ID

            // Set SRC
            feedback_kit_iframe.src = iFRAME_SRC;

            // Remove border and scrolling
            feedback_kit_iframe.frameBorder = "0"
            feedback_kit_iframe.scrolling = "No"

            // Add Style
            feedback_kit_iframe.style = iFrameStyle

            // Add onLoad Listener
            feedback_kit_iframe.onload = onLoadFn.bind(null,callback);

            // Add to DOM
            document.body.append(feedback_kit_iframe)

            onStartLoading();

            iFrameLoaded = true
        }else{
            callback();
        }
    }

    /**
     *   On Start IFrame Loading
     */
    function onStartLoading() {
        //console.log('Started', new Date());

        loader = document.createElement("div");
        loader.style = loaderStyle;
        document.body.append(loader);
    }

    /**
     * On Load IFrame
     */
    function onLoadFn(callback) {
        //console.log('Loaded', new Date());
        callback();
        if (loader != null) {
            loader.remove();
        }
    }

    function isValid() {
        value = getCookie(INSTANCE_ID);
        return value === ""
    }


    /**
     *   Show Modal
     */
    function showFn(context) {
        if (isValid()) {
            loadFn(function(){
                sendMessage('show',context)
            });
            feedback_kit_iframe.style.display = 'block';
        }
    }

    /**
     *   Hide Modal
     */
    function hideFn() {
        if(feedback_kit_iframe){
            feedback_kit_iframe.style.display = 'none';
        }
    }


    /**
     *   Function to send message
     */
    function sendMessage(fnName, args) {
        feedback_kit_iframe.contentWindow.postMessage({
            fnName: fnName,
            args: args
        }, iFRAME_SRC);
    }

    /**
     *   Function on receive message
     */
    function receiveMessage(event) {
        //console.log("Parent ReceiveMessage : ", event)
        // If message received from unexpected origin don't process
        if (!(iFRAME_SRC.startsWith(event.origin) && ( event && event.data && event.data.instance_id === INSTANCE_ID )))
            return;

        const message = event.data;

        // Process Event
        fnMap[message.fnName](message.args);

        if(message.fnName==="hide"){
            setCookie(INSTANCE_ID, STATUS, TTL)}
        }

    /**
     *   On Receive Event Listener
     */
    window.addEventListener("message", receiveMessage, false);



    function setCookie(cname, cvalue, seconds) {
        var d = new Date();
        d.setTime(d.getTime() + (Number(seconds)*1000));
        var expires = "expires=" + d.toUTCString();
        document.cookie = cname + "=" + cvalue + ";" + expires + ";path=/;";
    }

    function  getCookie(cname) {
        var name = cname + "=";
        var ca = document.cookie.split(';');
        for (var i = 0; i < ca.length; i++) {
            var c = ca[i];
            while (c.charAt(0) == ' ') {
                c = c.substring(1);
            }
            if (c.indexOf(name) == 0) {
                return c.substring(name.length, c.length);
            }
        }
        return "";
    }

})()