function parseTimeInputToIntegerArray(timeString) {
    var hoursToMinutes = timeString.split(":");
    var hours = parseInt(hoursToMinutes[0]);
    var minutes = parseInt(hoursToMinutes[1]);

    return [hours, minutes];
}

function getDateFromPicker(pickerId) {
    try {
        var picker = $("#" + pickerId);

        if(picker.length > 0) {
            picker.datetimepicker("show");
            picker.datetimepicker("hide");

            var unixTime = picker.datetimepicker("date");
            var targetDate = new Date(unixTime);

            if(isValidDate(targetDate)) {
                return targetDate;
            }
        }

        return new Date();
    } catch(error) {
        showErrorPopup(error);
    } finally {
        return new Date();
    }
}

function getTimeFromPicker(pickerId) {
    var result = new Date();

    try {
        var picker = $("#" + pickerId);

        if (picker.length > 0) {
            var timeString = picker.val();
            if (timeString.length === 5) {
                var hours = timeString.substring(0, 2);
                var minutes = timeString.substring(3);

                result.setHours(hours);
                result.setMinutes(minutes);

                var date = result.getDate();
                var month = result.getMonth();
                var year = result.getYear();

                return new Date(year, month, date, hours, minutes, 0, 0);
            }
        }
    } catch (error) {
        showErrorPopup(error);
    } finally {
        return result;
    }
}

function dateToShortDateString(date) {
    try {
        logInfo2("Konvertiere Datum zu kurzem Datum: " + date);

        if (isValidDate(date)) {
            var ddNum = date.getDate();
            var mmNum = date.getMonth();
            var yyyyNum = date.getFullYear();

            var dd = ddNum.toString();
            var mm = mmNum.toString();
            var yyyy = yyyyNum.toString();

            if (ddNum < 10) {
                dd = "0" + dd;
            }

            if (mmNum < 10) {
                mm = "0" + mm;
            }

            if (yyyyNum < 10) {
                yyyy = "000" + yyyyNum;
            } else if (yyyyNum < 100) {
                yyyy = "00" + yyyyNum;
            } else if (yyyyNum < 1000) {
                yyyy = "0" + yyyyNum;
            }

            return dd + "." + mm + "." + yyyy;
        }
    } catch (error) {
        showErrorPopup(error);
    }
}

function mergeDateAndTime(date, time) {
    var result = new Date();

    try {
        if (isValidDate(date) && isValidDate(time)) {
            var day = date.getDate();
            var month = date.getMonth();
            var year = date.getFullYear();
            var hours = time.getHours();
            var minutes = time.getMinutes();

            result = new Date(year, month, day, hours, minutes, 0, 0);
        }
    } catch (error) {
        showErrorPopup(error);
    } finally {
        return result;
    }
}

// ToDo: Löst Exception aus bei einem Wert von z.B. "06.02.2023".
function isValidDate(date) {
    return Object.prototype.toString.call(date) === "[object Date]" && !isNaN(date);
}

function ddMMyyyyToyyyyMMdd(dateString)
{
    if (dateString === undefined || dateString === null || typeof dateString != "string" || dateString.length !== 10) {
        return null;
    }

    var dayMonthYear = dateString.split(".");

    if(dayMonthYear.length !== 3) {
        return null;
    }

    var dd = dayMonthYear[0];
    var mm = dayMonthYear[1];
    var yyyy = dayMonthYear[2];

    return `${yyyy}-${mm}-${dd}`;
}