<?php

namespace TFGraphics\SmartImport\Mapping\Language;

use TFGraphics\SmartImport\Mapping\MappingContext;
use TFGraphics\SmartImport\Mapping\MappingRule;

final class LanguageRule extends MappingRule
{
    private string $source;
    private string $target;

    public function __construct(string $source, string $target)
    {
        $this->source = $source;
        $this->target = $target;
    }

    public function apply(mixed $data, MappingContext $context): mixed
    {
        if (! is_string($data)) {
            return $data;
        }

        return $data === $this->source ? $this->target : $data;
    }
}