channel.php

<?php
 
namespace Bitrix\Seo\BusinessSuite\Configuration\Facebook\Fields\Setup;
 
use Bitrix\Seo\BusinessSuite\Configuration\Facebook\Fields;
 
final class Channel implements Fields\IField
{
    const CHANNEL_COMMERCE_OFFSITE = "COMMERCE_OFFSITE";
    const CHANNEL_MARKETPLACE = "MARKETPLACE";
    const CHANNEL_COMMERCE = "COMMERCE";
    const CHANNEL_SIGNALS = "SIGNALS";
    const CHANNEL_FEED  = "FEED";
 
    static function getDefaultValue()
    {
        return null;
    }
 
    static function checkValue($value): bool
    {
        return is_string($value) && in_array($value,[
            static::CHANNEL_COMMERCE,
            static::CHANNEL_COMMERCE_OFFSITE,
            static::CHANNEL_FEED,
            static::CHANNEL_MARKETPLACE,
            static::CHANNEL_SIGNALS
        ]);
 
    }
 
    static function available(): bool
    {
        return false;
    }
 
    static function required(): bool
    {
        return false;
    }
}