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<?php
namespace Alxvng\QATracker\DataProvider;
use RuntimeException;
use SimpleXMLElement;
use Symfony\Component\Filesystem\Filesystem;
abstract class AbstractXpathProvider implements DataProviderInterface
{
    public const MIME_TYPES = [
        'application/xml',
        'text/xml',
        'text/plain',
    ];
    public const NS_PREFIX = 'prefix';
    public const NS_VALUE = 'namespace';
    protected string $inputFilePath;
    protected string $xpathQuery;
    protected array $namespaceParameters;
    /**
     * XpathProvider constructor.
     *
     * @param string $baseDir
     * @param string $inputFilePath
     * @param string $xpathQuery
     * @param array  $namespaceParameters
     */
    public function __construct(string $baseDir, string $inputFilePath, string $xpathQuery, array $namespaceParameters = [])
    {
        $fs = new Filesystem();
        $this->inputFilePath = $fs->isAbsolutePath($inputFilePath) ? $inputFilePath : $baseDir.'/'.$inputFilePath;
        $this->xpathQuery = $xpathQuery;
        $this->namespaceParameters = $namespaceParameters;
        if (!file_exists($this->inputFilePath)) {
            throw new RuntimeException(sprintf('Unable to find file at %s', $this->inputFilePath));
        }
        if (!in_array(mime_content_type($this->inputFilePath), static::MIME_TYPES, true)) {
            throw new RuntimeException(sprintf('The file %s (%s) must have one the mime types : %s', $this->inputFilePath, mime_content_type($this->inputFilePath), implode(',', static::MIME_TYPES)));
        }
        try {
            $xml = new SimpleXMLElement(file_get_contents($this->inputFilePath));
        } catch (\Exception $e) {
            throw new \RuntimeException(sprintf('The file %s seems does not contain valid xml data', $this->inputFilePath));
        }
    }
}