<?php namespace SokoWeb\PersistentData\Model;

use Cocur\Slugify\Slugify;

abstract class ModelWithSlug extends Model
{
    protected static string $slugSource;

    protected ?string $slug = null;

    public static function getFields(): array
    {
        return array_merge(['id', 'slug'], static::$fields);
    }

    public function setSlug(?string $slug): void
    {
        $this->slug = $slug;
    }

    public function getSlug(): ?string
    {
        return $this->slug;
    }

    public function generateSlug(): string
    {
        $slugSourceGetMethod = 'get' . str_replace('_', '', ucwords(static::$slugSource, '_'));
        $this->slug = Slugify::create()->slugify($this->$slugSourceGetMethod());
        return $this->slug;
    }
}