reminderhelper.php

См. документацию.

<?php
 
namespace Bitrix\Calendar\ICal\Helper;
 
use Bitrix\Calendar\Core\Event\Properties\Remind;
use Bitrix\Calendar\ICal\IcsBuilder;
use Bitrix\Calendar\Util;
 
final class ReminderHelper
{
    public static function prepareReminderValue(
        Remind $remind,
        bool $isFullDay
    ): array
    {
        $valueType = '';
        $value = '';
 
        if ($remind->getUnits() === 'minutes')
        {
            $valueType = 'DURATION';
            if ($remind->getTime() === 60 || $remind->getTime() === 120)
            {
                $value = '-PT' . $remind->getTime() / 60 . 'H';
            }
            else if ($remind->getTime() === 0)
            {
                $value = 'PT' . $remind->getTime() . 'S';
            }
            else
            {
                $value = '-PT' . $remind->getTime() . 'M';
            }
        }
        else if ($remind->getSpecificTime() && $remind->getDaysBefore() !== null)
        {
            $valueType = 'DURATION';
            $diff = $remind->getTimeBeforeStartInMinutes();
            $parsedDiff = Util::minutesToDayHoursMinutes(abs($diff));
            if ($isFullDay  && $remind->getDaysBefore() === 0)
            {
                $value = 'PT' . $parsedDiff['hours'] . 'H';
            }
            else if (
                ($remind->getDaysBefore() === 0 && !$isFullDay && $diff > 0)
                || ($remind->getDaysBefore() === 1 && $parsedDiff['days'] === 0)
            )
            {
                $hours = '';
                $minutes = '';
                if ($parsedDiff['hours'])
                {
                    $hours = $parsedDiff['hours'] . 'H';
                }
                if ($parsedDiff['minutes'])
                {
                    $minutes = $parsedDiff['minutes'] . 'M';
                }
                $value = '-PT' . $hours . $minutes;
            }
            else if ($parsedDiff['days'] > 0)
            {
                $hours = '';
                $minutes = '';
                $value = '-P' . $parsedDiff['days'] . 'D';
                if ($parsedDiff['hours'])
                {
                    $hours = $parsedDiff['hours'] . 'H';
                }
                if ($parsedDiff['minutes'])
                {
                    $minutes = $parsedDiff['minutes'] . 'M';
                }
                if ($hours || $minutes)
                {
                    $value .= 'T' . $hours . $minutes;
                }
            }
            else
            {
                return [null, null];
            }
        }
        else if ($remind->getSpecificTime())
        {
            $valueType = 'DATE-TIME';
            $value = date(IcsBuilder::UTC_DATETIME_FORMAT, $remind->getSpecificTime()->getTimestamp());
        }
 
        return [$value, $valueType];
    }
}