var ConID = "";
/* resizuje iframe podle obdrzene MSG - iframe po nacteni posle MSG s aktualni vyskou */
window.onmessage = (e) => {
    if (e.data.hasOwnProperty("frameHeight")) {
        console.log("[ZOOMVOUCHER] Set iframe height msg - set to : " + e.data.frameHeight );
        document.getElementById("voucheriframe").style.height = `${e.data.frameHeight + 100}px`;
    }
    if (e.data.hasOwnProperty("connID")) {
        console.log("[ZOOMVOUCHER] ConnectionID: " + e.data.connID );
        ConID = e.data.connID;
    }
    if (e.data.hasOwnProperty("scrollTo")) {
        console.log("[ZOOMVOUCHER] scrollujuTOP");
        window.scrollTo({
            top: 700,
        behavior: 'smooth'
    });
        sendCookies();
    }
};

/* pri scrollu posila iframe info jak moc je odscrollovano pro spravne zobrazeni rozkliku img kdyz je vic vzhledu pod sebou*/
const sendPostMessage = () => {
    offsetvalue = window.scrollY -  700 ;
    document.getElementById("voucheriframe").contentWindow.postMessage({ scrollOffset: offsetvalue }, '*');
}
window.addEventListener('scroll', function() {
    //console.log(ConID);
    sendPostMessage();
});


/*při reloadu iframe odscroluje na vrsek */
document.getElementById("voucheriframe").onload = function(){
    window.scrollTo({
        top: 700,
    behavior: 'smooth'
});
    sendCookies();
}

/*preposila parametry z src parenta do src iframe*/
var ifr_rld = 0;
window.addEventListener('DOMContentLoaded', (event) => {

    //console.log("base");
    console.log(document.getElementById("voucheriframe").src.split("?")[0] + "?");

    //console.log("iframe params");
    console.log(document.getElementById("voucheriframe").src.split("?")[1]);

    //console.log("fixed iframe params");
    var fixed_url = removeURLParameter("?" + document.getElementById("voucheriframe").src.split("?")[1], "source");
    //console.log("fixed_url_o", fixed_url);
    fixed_url = removeURLParameter(fixed_url, "DIGEST");
    //console.log("fixed_url_1", fixed_url);
    fixed_url = removeURLParameter(fixed_url, "DIGEST1");
    ///console.log("fixed_url_2", fixed_url);


    if (ifr_rld == 0) {
        ifr_rld = 1;
        var new_src = document.getElementById("voucheriframe").src.split("?")[0] + "?" + window.location.href.split("?")[1] + "&" + fixed_url.split("?")[1];
        document.getElementById("voucheriframe").src = new_src;
    }

});


function removeURLParameter(url, parameter) {
    //prefer to use l.search if you have a location/link object
    var urlparts = url.split('?');
    if (urlparts.length >= 2) {

        var prefix = encodeURIComponent(parameter) + '=';
        var pars = urlparts[1].split(/[&;]/g);

        //reverse iteration as may be destructive
        for (var i = pars.length; i-- > 0;) {
            //idiom for string.startsWith
            if (pars[i].lastIndexOf(prefix, 0) !== -1) {
                pars.splice(i, 1);
            }
        }

        return urlparts[0] + (pars.length > 0 ? '?' + pars.join('&') : '');
    }
    return url;
}/**/

function sendCookies(){
    const frame = document.getElementById('voucheriframe');
    if(cm_cookie_stats!=1){
        frame.contentWindow.postMessage({ cookies: 0 }, '*');
    }else{
        frame.contentWindow.postMessage({ cookies: 1 }, '*');
    }
    console.log("[ZOOMVOUCHER] cookies sent");
}