BeubiQA\Application\Selenium\SeleniumDownloader

Complexity

Total Complexity

15

Size/Duplication

Total Lines	89
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Importance

Changes

0

8 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	5	1
A	setProgressBar()	0	4	1
A	isJarAlreadyDownloaded()	0	4	1
A	getJarPath()	0	4	1
C	download()	0	24	7
A	downloadFile()	0	7	2
A	setDownloadWithProgressBar()	0	13	1
A	getDownloaderOptions()	0	4	1

<?php

namespace BeubiQA\Application\Selenium;

use BeubiQA\Application\Selenium\Options\SeleniumDownloaderOptions;
use GuzzleHttp\Client;
use Symfony\Component\Console\Helper\ProgressBar;

class SeleniumDownloader
{
    /** @var Client */
    protected $httpClient;
    /** @var ProgressBar */
    protected $progressBar;
    /** @var SeleniumDownloaderOptions */
    protected $seleniumOptions;

    public function __construct(SeleniumDownloaderOptions $seleniumOptions, Client $httpClient)
    {
        $this->seleniumOptions = $seleniumOptions;
        $this->httpClient = $httpClient;
    }

    public function setProgressBar(ProgressBar $progressBar)
    {
        $this->progressBar = $progressBar;
    }

    public function isJarAlreadyDownloaded()
    {
        return is_file($this->getJarPath());
    }

    public function getJarPath()
    {
        return $this->seleniumOptions->getSeleniumDestination().'/selenium-server-standalone.jar';
    }

    public function download()
    {
        $destinationPath = $this->seleniumOptions->getSeleniumDestination();
        $downloadUrl = $this->seleniumOptions->getSeleniumDownloadUrl();
        if (!$destinationPath || !$downloadUrl) {
            throw new \LogicException('Destination and Download Url are mandatory.');
        }
        if ($this->isJarAlreadyDownloaded()) {
            throw new \RuntimeException('File already exists. '.$this->getJarPath());
        }
        if (!is_dir($destinationPath)) {
            mkdir($destinationPath, 0777, true);
        }
        if (!is_writable($destinationPath)) {
            throw new \RuntimeException(
                'Not enough permissions in '.$destinationPath.". \nTry with sudo."
            );
        }
        $outputFile = $this->getJarPath();
        $this->downloadFile($downloadUrl, $outputFile);
        if (!file_exists($outputFile)) {
            throw new \RuntimeException('Something wrong happent. The selenium file does not exists. '.$outputFile);
        }
    }

    /**
     * @param string $url
     * @param string $saveTo
     */
    private function downloadFile($url, $saveTo)
    {
        if ($this->progressBar) {
            $this->setDownloadWithProgressBar();
        }
        $this->httpClient->get($url, ['save_to' => $saveTo]);
    }

    private function setDownloadWithProgressBar()
    {
        $emitter = $this->httpClient->getEmitter();
        $emitter->on('before', function (\GuzzleHttp\Event\BeforeEvent $event) {
            echo $event->getRequest();
        });
        $emitter->once('progress', function (\GuzzleHttp\Event\ProgressEvent $event) {
            $this->progressBar->start($event->downloadSize);
        });
        $emitter->on('progress', function (\GuzzleHttp\Event\ProgressEvent $event) {
            $this->progressBar->setProgress($event->downloaded);
        });
    }

    /**
     * @return SeleniumDownloaderOptions
     */
    public function getDownloaderOptions()
    {
        return $this->seleniumOptions;
    }
}