<?php

namespace Composer\Downloader;

use Composer\Package\PackageInterface;
use Composer\Util\Platform;
use Composer\Util\ProcessExecutor;
use React\Promise\PromiseInterface;

/**
 * GZip archive downloader.
 *
 * @author Pavel Puchkin <i@neoascetic.me>
 */
class GzipDownloader extends ArchiveDownloader
{
    protected function extract(PackageInterface $package, string $file, string $path): PromiseInterface
    {
        $filename = pathinfo(parse_url(strtr((string) $package->getDistUrl(), '\\', '/'), PHP_URL_PATH), PATHINFO_FILENAME);
        $targetFilepath = $path . DIRECTORY_SEPARATOR . $filename;

        // Try to use gunzip on *nix
        if (!Platform::isWindows()) {
            $command = ['sh', '-c', 'gzip -cd -- "$0" > "$1"', $file, $targetFilepath];

            if (0 === $this->process->execute($command, $ignoredOutput)) {
                return \React\Promise\resolve(null);
            }

            if (extension_loaded('zlib')) {
                // Fallback to using the PHP extension.
                $this->extractUsingExt($file, $targetFilepath);

                return \React\Promise\resolve(null);
            }

            $processError = 'Failed to execute ' . implode(' ', $command) . "\n\n" . $this->process->getErrorOutput();
            throw new \RuntimeException($processError);
        }

        // Windows version of PHP has built-in support of gzip functions
        $this->extractUsingExt($file, $targetFilepath);

        return \React\Promise\resolve(null);
    }

    private function extractUsingExt(string $file, string $targetFilepath): void
    {
        $archiveFile = gzopen($file, 'rb');
        $targetFile = fopen($targetFilepath, 'wb');
        while ($string = gzread($archiveFile, 4096)) {
            fwrite($targetFile, $string, Platform::strlen($string));
        }
        gzclose($archiveFile);
        fclose($targetFile);
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NTY4NzI4OTMyMTcyNDQwOCA4NDMwNzQ1NDQ3MTU1NTA5IDI3MDA2OTQ3MzAwNTAzOTE=