searchanddisplace-ingest/app/Ingest/TextConvertor.php

<?php

namespace App\Ingest;

use App\Parser\ParseTextArray;

class TextConvertor extends AbstractConvertor
{
    public function execute()
    {
        $textParser = new ParseTextArray();

        $content = $textParser->fromFile($this->storage->path($this->path));

        if ( ! $content) {
            throw new \Exception('Could not read content.');
        }

        $content = $this->convertToUTF8($content);

        $this->storeContent($content);
    }

    protected function convertToUTF8($content)
    {
        array_walk_recursive(
            $content,
            function (&$entry) {
                $entry = mb_convert_encoding(
                    $entry,
                    'UTF-8'
                );
            }
        );

        return $content;
    }

    protected function storeContent($content)
    {
        $this->storeMD($content);

        $this->deleteOriginalDocument();
    }

    protected function storeMD($content)
    {
        $convertor = new MDConvertor($content);

        $this->storage->put("$this->directoryPath/document.md", $convertor->execute());
    }
}