<?php

namespace bff\modules\site\models;

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

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

    protected $table = Site::TABLE_CURRENCIES;

    public const CREATED_AT = null;

    protected $casts = [
        'extra' => 'json',
    ];

    public function langColumns()
    {
        return ['title', 'title_short', 'title_decl'];
    }

    public static function boot()
    {
        parent::boot();

        self::creating(function ($model) {
            /** @var $model static */
            $model->num = (int)$model->max('num') + 1;
        });
    }

    /**
     * Check if currency keyword is unique
     * @param string $keyword
     * @param int $except currency id
     * @return bool
     */
    public function keywordExists($keyword, $except = 0)
    {
        $query = $this->where('keyword', $keyword);
        if ($except) {
            $query->where('id', '!=', $except);
        }
        return (int)$query->count() > 0;
    }

    /**
     * Check if currency code is unique
     * @param string $code
     * @param int $except currency id
     * @return bool
     */
    public function codeExists($code, $except = 0)
    {
        $query = $this->where('code', $code);
        if ($except) {
            $query->where('id', '!=', $except);
        }
        return (int)$query->count() > 0;
    }
}