christophrumpel/larastreamers

class PrepareStreams
{
    public function handle(Collection $streams): Collection
    {
        return $streams
            ->sortBy('scheduled_start_time', null, $this->isDescending)
            ->groupBy(static fn(Stream $item): string => $item->scheduled_start_time->format('D d.m.Y'))
            ->mapWithKeys(static function(Collection $item, string $date): array {
                $dateObject = Carbon::createFromFormat('D d.m.Y', $date);

                if ($dateObject->isYesterday()) {
                    $date = 'Yesterday';
                }

                if ($dateObject->isToday()) {
                    $date = 'Today';
                }

                if ($dateObject->isTomorrow()) {
                    $date = 'Tomorrow';
                }

                return [$date => $item];
            });
    }
}