<?php

namespace Composer\Util;

use Composer\Downloader\DownloaderInterface;
use Composer\Package\PackageInterface;
use React\Promise\PromiseInterface;

class SyncHelper
{
	/**
	 * Helps you download + install a single package in a synchronous way
	 *
	 * This executes all the required steps and waits for promises to complete
	 *
	 * @param Loop                  $loop        Loop instance which you can get from $composer->getLoop()
	 * @param DownloaderInterface   $downloader  Downloader instance you can get from $composer->getDownloadManager()->getDownloader('zip') for example
	 * @param string                $path        the installation path for the package
	 * @param PackageInterface      $package     the package to install
	 * @param PackageInterface|null $prevPackage the previous package if this is an update and not an initial installation
	 */
	public static function downloadAndInstallPackageSync(
		Loop $loop,
		DownloaderInterface $downloader,
		string $path,
		PackageInterface $package,
		?PackageInterface $prevPackage = null,
	): void {
		$type = $prevPackage ? 'update' : 'install';

		try {
		    self::await($loop, $downloader->download($package, $path, $prevPackage));

		    self::await($loop, $downloader->prepare($type, $package, $path, $prevPackage));

		    if ($type === 'update') {
		        self::await($loop, $downloader->update($package, $prevPackage, $path));
		    } else {
		        self::await($loop, $downloader->install($package, $path));
		    }
		} catch (\Exception $e) {
		    self::await($loop, $downloader->cleanup($type, $package, $path, $prevPackage));
		    throw $e;
		}

		self::await($loop, $downloader->cleanup($type, $package, $path, $prevPackage));
	}


	/**
	 * Waits for a promise to resolve
	 *
	 * @param Loop                  $loop    Loop instance which you can get from $composer->getLoop()
	 */
	public static function await(Loop $loop, ?PromiseInterface $promise = null): void
	{
		if ($promise) {
		    $loop->wait([$promise]);
		}
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NDI0NDgxNTE1MTMwOTA2NCA2MzcxODcxMjIwMzE3NjQyIDUwMTc5NDE3ODgyMTg4