<?php
namespace App\Models;

use App\Constants\Util;

class Menu extends BaseModel
{
    protected $table = 'menus';
    protected $fillable = ['parent_id', 'title', 'icon' ,'uri' ,'permission_name' ,'sort' ,'status' ,'type' ];

    const TYPE_MENU = 1;
    const TYPE_BUTTON = 2;

    const STATUS_SHOW = 1;
    const STATUS_HIDE = 2;

    public static function isImageIcon(string $value): bool
    {
        $value = trim($value);
        if ($value === '') return true;
        if (preg_match('#^https?://#i', $value)) {
            return filter_var($value, FILTER_VALIDATE_URL) !== false;
        }
        return preg_match('#^/(?!/)\S+$#u', $value) === 1;
    }

    protected function getIconAttribute($value): string
    {
        $value = trim((string) $value);
        return self::isImageIcon($value) ? (string) Util::ensureUrl($value) : '';
    }

    protected function setIconAttribute($value): void
    {
        $value = trim((string) $value);
        $baseUrl = rtrim((string) config('app.url', ''), '/');
        if ($baseUrl !== '' && str_starts_with($value, $baseUrl . '/')) {
            $value = substr($value, strlen($baseUrl));
        }
        $this->attributes['icon'] = $value;
    }

    public function children()
    {
        return $this->hasMany(Menu::class, 'parent_id');
    }

    public function parent()
    {
        return $this->belongsTo(Menu::class, 'parent_id');
    }
}