dishplanner/app/Models/WeeklyRecurrence.php

<?php

namespace App\Models;

use App\WeekdaysEnum;
use Database\Factories\WeeklyRecurrenceFactory;
use DishPlanner\UserDish\Interfaces\FixedRecurrenceInterface;
use DishPlanner\UserDish\Interfaces\RecurrenceInterface;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\MorphOne;

/**
 * @property int $weekday
 *
 * @method static create(array $array)
 * @method static WeeklyRecurrenceFactory factory($count = null, $state = [])
 */
class WeeklyRecurrence extends Model implements FixedRecurrenceInterface, RecurrenceInterface
{
    /** @use HasFactory<WeeklyRecurrenceFactory> */
    use HasFactory;

    protected $fillable = ['weekday'];

    protected $casts = [
        'weekday' => WeekdaysEnum::class,
    ];

    public function recurrence(): MorphOne
    {
        return $this->morphOne(UserDishRecurrence::class, 'recurrence');
    }
}