export function weekStartSunday(date_local: Date): Date {
  const start = new Date(Date.UTC(date_local.getFullYear(), date_local.getMonth(), date_local.getDate()));
  const dow = start.getDay();
  start.setDate(start.getDate() - dow);
  start.setHours(0, 0, 0, 0);
  return start;
}

export const toDateFromString = ( date: Date | string):Date => {
    const d = new Date(date);
    return new Date(Date.UTC(d.getUTCFullYear(), d.getUTCMonth(), d.getUTCDate()));
} 

export const sevenDaysFrom = (date: Date | string): Date[] => {
    return Array.from({length: 7 }, (_,i) => {
        const d = new Date(date);
        d.setUTCDate(d.getUTCDate() + i );
        return d;
    });
}

export const toStringFromDate = (date: Date | string): string => {
    const d     = toDateFromString(date);
    const year  = d.getUTCFullYear();
    const month = String(d.getUTCMonth() + 1).padStart(2, '0');
    const day   = String(d.getUTCDate()).padStart(2, '0');
    return `${year}-${month}-${d}`;
}

export const toHHmmFromDate = (input: Date | string): string => {
    const date = new Date(input);
    const hh = String(date.getUTCHours()).padStart(2, '0');
    const mm = String(date.getUTCMinutes()).padStart(2, '0');
    return `${hh}:${mm}`;
}