function readCookie(name) {
    var nameEQ = name + "=";
    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, c.length);
        }
        if (c.indexOf(nameEQ) === 0) {
            return c.substring(nameEQ.length, c.length)
        }
    }
    return null;
}

//Skapa en cookie, value = '' så tas den bort
function createCookie(name, value) {
    document.cookie = name + "=" + value + "; path=/";
}



function logClose() {
    createCookie('LogOffCookie', new Date().getTime() + '');
    return 'Browser close button clicked';
}

function getParameterByName(name) {
    var url = window.location.href;
    name = name.replace(/[\[\]]/g, "\\$&");
    var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
        results = regex.exec(url);
    if (!results) {
        return null;
    }
    if (!results[2]) {
        return '';
    }
    return decodeURIComponent(results[2].replace(/\+/g, " "));
}

function postLog(kategori: string, message: string, errorhash: string, content: any) {
    try {
        var logObject = {
            ClientTimestamp: new Date().toUTCString(),
            ServerErrorId: null,
            UserAgent: navigator.userAgent,
            WindowSize: {
                innerHeight: window.innerHeight,
                innerWidth: window.innerWidth
            },
            Message: message,
            Stacktrace: content,
            LocationHash: location.hash,
            Navigations: null,
            Savings: null,
            IsRedBalloon: false,
            IsBalloon: false,
            ErrorHash: errorhash
        };


        var xsrfValue: string = readCookie('XSRF-TOKEN');
        var fasitsessionid: string = readCookie('.fasitsessionid');
        var xhr = new XMLHttpRequest();
        xhr.withCredentials = true;
        xhr.open("POST", '/WebAPI/api/Log1/' + kategori+'/', true);
        xhr.setRequestHeader('Content-Type', 'application/json');
        xhr.setRequestHeader('X-XSRF-TOKEN', xsrfValue);
        xhr.setRequestHeader('X-SessionId', fasitsessionid);
        xhr.send(JSON.stringify(
            logObject
        ));
    } catch (e) {

    }
}



function checkForReload() {
    var kontorId = getParameterByName("kontorId");
    if (kontorId !== null && kontorId !== "") {
        // Vi vill inte göra något här då användaren bar abytt kontor
    }
    else {

        var cookieTime = readCookie('LogOffCookie');
        if (cookieTime !== '') {
            var lastTime: number = parseInt(cookieTime);
            var now = new Date().getTime();
            var difference = now - lastTime;
            var reload = difference < 20000;
            //Töm Cookie
            createCookie('LogOffCookie', '');

            if (reload) {
                postLog('Warn', 'Omladdning loggad', 'Omladdning: ' + difference + 'ms', null);
            }
        }
    }
}

window.onerror = function (msg, url, lineNo, columnNo, error) {
    postLog('Error', msg, 'Låsning', error.stack)
}

window.onunload = logClose;

checkForReload();