<?php

namespace bff\modules\site\models;

use Site;
use bff\db\illuminate\Model;
use bff\db\illuminate\Langs;

/**
 * Site Menu model
 * @copyright Tamaranga
 */
class Menu extends Model
{
    use Langs;

    protected $table = Site::TABLE_MENU;

    protected static function booted()
    {
        parent::booted();

        static::creating(function ($self) {
            /** @var $self static */
            if (empty($self->num) && ! empty($self->group_key)) {
                $query = $self->where('group_key', $self->group_key);
                if (! empty($self->pid)) {
                    $query->where('pid', $self->pid);
                }
                $self->num = (int)$query->max('num') + 1;
            }
        });

        $resetCache = function () {
            Site::menusResetCache();
        };

        static::saved($resetCache);
        static::deleted($resetCache);
    }

    /**
     * Translatable columns
     * @return array
     */
    public function langColumns()
    {
        return ['title'];
    }
}