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

    return [hours, minutes];
}

function getDateFromPicker(pickerId) {
    try {
        const picker = $(`#${pickerId}`);

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

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

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

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

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

    try {
        const picker = $(`#${pickerId}`);

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

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

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

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

function dateToShortDateString(date) {
    try {
        logInfo2(`Konvertiere Datum zu kurzem Datum: ${date}`);

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

            let dd = ddNum.toString();
            let mm = mmNum.toString();
            let 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) {
        window.showErrorPopup(error);
    }
}

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

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

            result = new Date(year, month, day, hours, minutes, 0, 0);
        }
    } catch (error) {
        window.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;
    }

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

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

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

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