<?php

declare(strict_types=1);

namespace JsonMachine\JsonDecoder;

class ErrorWrappingDecoder implements ItemDecoder
{
    /**
     * @var ItemDecoder
     */
    private $innerDecoder;

    public function __construct(ItemDecoder $innerDecoder)
    {
        $this->innerDecoder = $innerDecoder;
    }

    public function decode($jsonValue)
    {
        $result = $this->innerDecoder->decode($jsonValue);
        if ( ! $result->isOk()) {
            return new ValidResult(new DecodingError($jsonValue, $result->getErrorMessage()));
        }

        return $result;
    }
}