BrowscapPHP\Helper\Converter

Complexity

Total Complexity

29

Size/Duplication

Total Lines	226
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	5

Test Coverage

Coverage

61.97%

Importance

Changes	2
Bugs	0	Features	1

10 Methods

Rating	Name	Duplication	Size	Complexity
A	convertFile()	0	14	2
A	__construct()	0	5	1
A	setFilesystem()	0	4	1
A	getFilesystem()	0	8	2
C	convertString()	0	52	11
A	getIniVersion()	0	13	3
A	setVersion()	0	4	1
A	storeVersion()	0	8	2
A	getIniReleaseDate()	0	10	3
A	getIniType()	0	10	3

<?php
declare(strict_types = 1);

namespace BrowscapPHP\Helper;

use BrowscapPHP\Cache\BrowscapCacheInterface;
use BrowscapPHP\Exception\FileNotFoundException;
use BrowscapPHP\IniParser\IniParser;
use Psr\Log\LoggerInterface;
use Psr\SimpleCache\InvalidArgumentException;

/**
 * patternHelper to convert the ini data, parses the data and stores them into the cache
 */
final class Converter implements ConverterInterface
{
    /**
     * The key to search for in the INI file to find the browscap settings
     */
    const BROWSCAP_VERSION_KEY = 'GJK_Browscap_Version';

    /**
     * @var \Psr\Log\LoggerInterface
     */
    private $logger = null;

    /**
     * The cache instance
     *
     * @var \BrowscapPHP\Cache\BrowscapCacheInterface
     */
    private $cache = null;

    /**
     * a filesystem patternHelper instance
     *
     * @var Filesystem
     */
    private $filessystem = null;

    /**
     * version of the ini file
     *
     * @var int
     */
    private $iniVersion = 0;

    /**
     * Converter constructor.
     *
     * @param LoggerInterface        $logger
     * @param BrowscapCacheInterface $cache
     */
    public function __construct(LoggerInterface $logger, BrowscapCacheInterface $cache)
    {
        $this->logger = $logger;
        $this->cache = $cache;
    }

    /**
     * Sets a filesystem instance
     *
     * @param Filesystem $file
     */
    public function setFilesystem(Filesystem $file) : void
    {
        $this->filessystem = $file;
    }

    /**
     * Returns a filesystem instance
     *
     * @return Filesystem
     */
    public function getFilesystem() : Filesystem
    {
        if (null === $this->filessystem) {
            $this->filessystem = new Filesystem();
        }

        return $this->filessystem;
    }

    /**
     * converts a file
     *
     * @param string $iniFile
     *
     * @throws FileNotFoundException
     */
    public function convertFile(string $iniFile) : void
    {
        if (! $this->getFilesystem()->exists($iniFile)) {
            throw FileNotFoundException::fileNotFound($iniFile);
        }

        $this->logger->info('start reading file');

        $iniString = file_get_contents($iniFile);

        $this->logger->info('finished reading file');

        $this->convertString($iniString);
    }

    /**
     * converts the string content
     *
     * @param string $iniString
     */
    public function convertString(string $iniString) : void
    {
        $iniParser = new IniParser();

        $this->logger->info('start creating patterns from the ini data');

        foreach ($iniParser->createPatterns($iniString) as $subkey => $content) {
            if ('' === $subkey) {
                continue;
            }

            try {
                if (! $this->cache->setItem('browscap.patterns.' . $subkey, $content, true)) {
                    $this->logger->error('could not write pattern data "' . $subkey . '" to the cache');
                }
            } catch (InvalidArgumentException $e) {
                $this->logger->error(new \InvalidArgumentException('an error occured while writing pattern data into the cache', 0, $e));
            }
        }

        $this->logger->info('finished creating patterns from the ini data');

        $this->logger->info('start creating data from the ini data');

        foreach ($iniParser->createIniParts($iniString) as $subkey => $content) {
            if ('' === $subkey) {
                continue;
            }

            try {
                if (! $this->cache->setItem('browscap.iniparts.' . $subkey, $content, true)) {
                    $this->logger->error('could not write property data "' . $subkey . '" to the cache');
                }
            } catch (InvalidArgumentException $e) {
                $this->logger->error(new \InvalidArgumentException('an error occured while writing property data into the cache', 0, $e));
            }
        }

        try {
            $this->cache->setItem('browscap.releaseDate', $this->getIniReleaseDate($iniString), false);
        } catch (InvalidArgumentException $e) {
            $this->logger->error(new \InvalidArgumentException('an error occured while writing data release date into the cache', 0, $e));
        }

        try {
            $this->cache->setItem('browscap.type', $this->getIniType($iniString), false);
        } catch (InvalidArgumentException $e) {
            $this->logger->error(new \InvalidArgumentException('an error occured while writing the data type into the cache', 0, $e));
        }

        $this->logger->info('finished creating data from the ini data');
    }

    /**
     * Parses the ini data to get the version of loaded ini file
     *
     * @param string $iniString The loaded ini data
     *
     * @return int
     */
    public function getIniVersion(string $iniString) : int
    {
        $quoterHelper = new Quoter();
        $key = $quoterHelper->pregQuote(self::BROWSCAP_VERSION_KEY);

        if (preg_match('/\.*\[' . $key . '\][^\[]*Version=(\d+)\D.*/', $iniString, $matches)) {
            if (isset($matches[1])) {
                $this->iniVersion = (int) $matches[1];
            }
        }

        return $this->iniVersion;
    }

    /**
     * sets the version
     *
     * @param int $version
     */
    public function setVersion(int $version) : void
    {
        $this->iniVersion = $version;
    }

    /**
     * stores the version of the ini file into cache
     */
    public function storeVersion() : void
    {
        try {
            $this->cache->setItem('browscap.version', $this->iniVersion, false);
        } catch (InvalidArgumentException $e) {
            $this->logger->error(new \InvalidArgumentException('an error occured while writing the data version into the cache', 0, $e));
        }
    }

    /**
     * Parses the ini data to get the releaseDate of loaded ini file
     *
     * @param string $iniString The loaded ini data
     * @return string|null
     */
    private function getIniReleaseDate(string $iniString) : ?string
    {
        if (preg_match('/Released=(.*)/', $iniString, $matches)) {
            if (isset($matches[1])) {
                return $matches[1];
            }
        }

        return null;
    }

    /**
     * Parses the ini data to get the releaseDate of loaded ini file
     *
     * @param string $iniString The loaded ini data
     * @return string|null
     */
    private function getIniType(string $iniString) : ?string
    {
        if (preg_match('/Type=(.*)/', $iniString, $matches)) {
            if (isset($matches[1])) {
                return $matches[1];
            }
        }

        return null;
    }
}