Creating a downloader class

Modules/Core/Downloader/Downloader.php

+<?php
+
+namespace Modules\Core\Downloader;
+
+use GuzzleHttp\Client;
+use Illuminate\Filesystem\Filesystem;
+use RuntimeException;
+use Symfony\Component\Console\Helper\ProgressBar;
+use Symfony\Component\Console\Output\OutputInterface;
+use ZipArchive;
+
+class Downloader
+{
+    /**
+     * @var OutputInterface
+     */
+    private $output;
+    /**
+     * @var string
+     */
+    private $package;
+    /**
+     * @var Filesystem
+     */
+    private $finder;
+
+    public function __construct(OutputInterface $output)
+    {
+        $this->output = $output;
+        $this->finder = app(Filesystem::class);
+    }
+
+    public function download($package)
+    {
+        if (! class_exists('ZipArchive')) {
+            throw new RuntimeException('The Zip PHP extension is not installed. Please install it and try again.');
+        }
+
+        $this->package = $package;
+        $this->output->writeln("<info>Downloading Module [{$this->package}]</info>");
+
+        $directory = config('modules.paths.modules') . '/' . $this->extractPackageNameFrom($package);
+
+        if ($this->finder->isDirectory($directory) === true) {
+            $this->output->writeln("<error>The folder [Modules/{$this->extractPackageNameFrom($package)}] already exists.</error>");
+            return;
+        }
+
+        $this->downloadFile($zipFile = $this->makeFilename(), $this->output)
+            ->extract($zipFile, $directory)
+            ->cleanUp($zipFile);
+
+        $this->output->writeln('<comment></comment>');
+
+        $this->output->writeln("<comment>Module downloaded in the Modules/{$this->extractPackageNameFrom($package)} directory!</comment>");
+    }
+
+    /**
+     * Extract the zip file into the given directory.
+     * @param  string $zipFile
+     * @param  string $directory
+     * @return $this
+     */
+    protected function extract($zipFile, $directory)
+    {
+        $modulesPath = config('modules.paths.modules');
+
+        $archive = new ZipArchive();
+        $archive->open($zipFile);
+        $archive->extractTo($modulesPath);
+
+        $original = $modulesPath . '/' . $archive->getNameIndex(0);
+
+        $this->finder->move($original, $directory);
+        $archive->close();
+
+        return $this;
+    }
+
+    /**
+     * Download the temporary Zip to the given file.
+     * @param  string $zipFile
+     * @param OutputInterface $output
+     * @return $this
+     */
+    protected function downloadFile($zipFile, OutputInterface $output)
+    {
+        $client = new Client([
+            'base_uri' => 'https://api.github.com',
+            'timeout'  => 2.0,
+        ]);
+
+        $latestVersionUrl = $this->getLatestVersionUrl($client);
+
+        $progress = new ProgressBar($output);
+        $progress->setFormat('[%bar%] %elapsed:6s%');
+
+        $response = (new Client)->get($latestVersionUrl, [
+            'progress' => function($downloadTotal, $downloadedBytes, $uploadTotal, $uploadedBytes) use ($progress) {
+                $progress->advance();
+            },
+        ]);
+        file_put_contents($zipFile, $response->getBody());
+
+        $progress->finish();
+
+        return $this;
+    }
+
+    /**
+     * Clean-up the Zip file.
+     * @param  string $zipFile
+     * @return $this
+     */
+    protected function cleanUp($zipFile)
+    {
+        @chmod($zipFile, 0777);
+        @unlink($zipFile);
+
+        return $this;
+    }
+
+    /**
+     * Generate a random temporary filename.
+     * @return string
+     */
+    protected function makeFilename()
+    {
+        return getcwd() . '/asgardcms_' . md5(time() . uniqid()) . '.zip';
+    }
+
+    private function getLatestVersionUrl(Client $client)
+    {
+        $githubReleases = $client->get("repos/{$this->package}/releases/latest");
+
+        $response = \GuzzleHttp\json_decode($githubReleases->getBody()->getContents());
+
+        return $response->zipball_url;
+    }
+
+    private function extractPackageNameFrom($package)
+    {
+        if (str_contains($package, '/') === false) {
+            throw new \Exception('You need to use vendor/name structure');
+        }
+        return studly_case(substr(strrchr($package, '/'), 1));
+    }
+}