<?php

/*
* This file is part of Composer.
*
* (c) Nils Adermann <naderman@naderman.de>
* Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/

namespace Composer\Installer;

use Composer\Package\PackageInterface;
use Composer\Downloader\DownloadManager;
use Composer\Repository\InstalledRepositoryInterface;
use Composer\Util\Filesystem;

/**
* Project Installer is used to install a single package into a directory as
* root project.
*
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class ProjectInstaller implements InstallerInterface
{
private $installPath;
private $downloadManager;
private $filesystem;

public function __construct($installPath, DownloadManager $dm)
{
$this->installPath = rtrim(strtr($installPath, '\\', '/'), '/').'/';
$this->downloadManager = $dm;
$this->filesystem = new Filesystem;
}

/**
* Decides if the installer supports the given type
*
* @param string $packageType
* @return bool
*/
public function supports($packageType)
{
return true;
}

/**
* {@inheritDoc}
*/
public function isInstalled(InstalledRepositoryInterface $repo, PackageInterface $package)
{
return false;
}

/**
* {@inheritDoc}
*/
public function install(InstalledRepositoryInterface $repo, PackageInterface $package)
{
$installPath = $this->installPath;
if (file_exists($installPath) && !$this->filesystem->isDirEmpty($installPath)) {
throw new \InvalidArgumentException("Project directory $installPath is not empty.");
}
if (!is_dir($installPath)) {
mkdir($installPath, 0777, true);
}
$this->downloadManager->download($package, $installPath);
}

/**
* {@inheritDoc}
*/
public function update(InstalledRepositoryInterface $repo, PackageInterface $initial, PackageInterface $target)
{
throw new \InvalidArgumentException("not supported");
}

/**
* {@inheritDoc}
*/
public function uninstall(InstalledRepositoryInterface $repo, PackageInterface $package)
{
throw new \InvalidArgumentException("not supported");
}

/**
* Returns the installation path of a package
*
* @param PackageInterface $package
* @return string path
*/
public function getInstallPath(PackageInterface $package)
{
return $this->installPath;
}
}