einundzwanzig-portal/app/Observers/LibraryItemObserver.php

<?php

namespace App\Observers;

use App\Enums\LibraryItemType;
use App\Models\LibraryItem;
use App\Traits\NostrTrait;
use Exception;
use Illuminate\Support\Facades\Log;

class LibraryItemObserver
{
    use NostrTrait;

    /**
     * Handle the LibraryItem "created" event.
     */
    public function created(LibraryItem $libraryItem): void
    {
        try {
            $libraryItem->setStatus('published');

            $libraryItemName = $libraryItem->name;
            $libraryItemName .= ' von '.$libraryItem->lecturer->name;

            if ($libraryItem->type !== LibraryItemType::MarkdownArticle()) {
                if ($libraryItem->whereDoesntHave('libraries',
                    fn($query) => $query->where('libraries.is_public', false))
                                ->exists()) {
                    $text = sprintf("Es gibt was Neues zum Lesen oder Anhören:\n\n%s\n\n%s\n\n#Bitcoin #Wissen #Einundzwanzig #gesundesgeld",
                        $libraryItemName,
                        url()->route('article.view',
                            ['libraryItem' => $libraryItem->slug]),
                    );
                    $this->publishOnNostr($libraryItem, $text);
                }
            }
        } catch (Exception $e) {
            Log::error($e->getMessage());
        }
    }

    /**
     * Handle the LibraryItem "updated" event.
     */
    public function updated(LibraryItem $libraryItem): void
    {
        //
    }

    /**
     * Handle the LibraryItem "deleted" event.
     */
    public function deleted(LibraryItem $libraryItem): void
    {
        //
    }

    /**
     * Handle the LibraryItem "restored" event.
     */
    public function restored(LibraryItem $libraryItem): void
    {
        //
    }

    /**
     * Handle the LibraryItem "force deleted" event.
     */
    public function forceDeleted(LibraryItem $libraryItem): void
    {
        //
    }
}