const dte = /\:\d{2}\.\d{3}Z$/;
const now = new Date();
const utcOffset = -now.getTimezoneOffset() / 60; // Negate the offset to match local time adjustments

const toShortString = (date: Date): string => {
    return `${date.getFullYear()}-${(date.getMonth() + 1).toString().padStart(2, '0')}-${date.getDate().toString().padStart(2, '0')}T${date.getHours().toString().padStart(2, '0')}:${date.getMinutes().toString().padStart(2, '0')}`;
};

const moveDate = (str: string): string => {
    let date = new Date(str); // Use the full ISO date
    let newHour = date.getUTCHours() + utcOffset; // Adjust hours with the correct offset
    date.setUTCHours(newHour); // Set the new hours based on UTC offset
    return toShortString(date); // Return the formatted string
};
export const toDate = (str: string | number): Date => {
    str = str.toString();
    const date = new Date()
    date.setFullYear(parseInt(str.slice(0, 4)));
    date.setMonth(parseInt(str.slice(5, 7)) - 1);
    date.setDate(parseInt(str.slice(8, 10)));
    date.setHours(parseInt(str.slice(11, 13)));
    date.setMinutes(parseInt(str.slice(14, 16)));
    date.setSeconds(0);
    return date;
}

const shortenString = (date: string): string => {
    return new Date(date).toISOString().replace(dte, '');
};

/* Returns date as string for use as the value for HTML Date Input */
export const toInputDate = (date: string | number): string => {
    const d = new Date(date);
    return `${d.getFullYear()}-${(d.getMonth() + 1).toString().padStart(2, '0')}-${d.getDate().toString().padStart(2, '0')}`;
};

/* Returns date as string for use as the value for HTML Date-Time Input */
export const toDateTimeInput = (date: string | number): string => {
    return moveDate(shortenString(new Date(date).toISOString()));
};