<?php

namespace App\Models;

use App\Lib\Helpers\ToolboxHelper;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Support\Str;

class NewsCategory extends Authenticatable
{
    use HasFactory;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'label',
        'slug',
    ];

    /**
     * Perform any actions required after the model boots.
     *
     * @return void
     */
    protected static function booted()
    {
        static::updating(function (self $model) {
            self::assertLabelIsUnique($model->label, $model->id);
            $model->slug = Str::slug($model->label);
        });
    }

    // * METHODS

    /**
     * Asserts using validation that the label is unique.
     *
     * @param mixed        $label
     * @param integer|null $id
     * @return void
     * @throws \Illuminate\Validation\ValidationException If an actu label already exists.
     */
    private static function assertLabelIsUnique($label, ?int $id = null)
    {
        $table = (new self())->getTable();
        ToolboxHelper::assertFieldIsUnique($table, 'label', $label, $id);
        ToolboxHelper::assertFieldIsUnique($table, 'slug', Str::slug($label), $id);
    }

    // * RELATIONSHIPS

    /**
     * BelongsToMany news
     *
     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
     */
    public function news()
    {
        return $this->belongsToMany(News::class);
    }
}