HomeMonitor/Calendar/Service/src/events/event.ts

import { HolidaysTypes } from 'date-holidays';
import { DateTime, Interval } from 'luxon';

export class Event {
    name: string;
    date: DateTime;
    type: HolidaysTypes.HolidayType;
    isToday: boolean;
    durationUntil: {
        days: number;
        hours: number;
        minutes: number;
        seconds: number;
    } | null;

    constructor(holiday: HolidaysTypes.Holiday, timezone: string) {
        const now = DateTime.now().setZone(timezone);
        this.name = holiday.name;
        this.date = DateTime.fromFormat(holiday.date, 'yyyy-MM-dd HH:mm:ss', {
            zone: timezone,
        }).startOf('day');
        this.type = holiday.type;
        this.isToday = this.date.hasSame(now, 'day');

        const duration = Interval.fromDateTimes(now, this.date).toDuration([
            'days',
            'hours',
            'minutes',
            'seconds',
        ]);

        this.durationUntil = !duration.isValid
            ? null
            : {
                  days: duration.days,
                  hours: duration.hours,
                  minutes: duration.minutes,
                  seconds: Math.round(duration.seconds),
              };
    }
}