Deployer\Initializer\Initializer

Complexity

Total Complexity

11

Size/Duplication

Total Lines	118
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

92.86%

Importance

Changes	1
Bugs	0	Features	1

5 Methods

Rating	Name	Duplication	Size	Complexity
A	getTemplateNames()	0	4	1
A	addTemplate()	0	6	1
A	initialize()	0	15	2
B	checkDirectoryBeforeInitialize()	0	29	5
A	checkFileBeforeInitialize()	0	13	2

<?php
/* (c) Anton Medvedev <anton@medv.io>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Deployer\Initializer;

use Deployer\Initializer\Exception\IOException;
use Deployer\Initializer\Exception\TemplateNotFoundException;
use Deployer\Initializer\Template\TemplateInterface;

/**
 * Initializer system
 *
 * @author Vitaliy Zhuk <zhuk2205@gmail.com>
 */
class Initializer
{
    /**
     * @var array|TemplateInterface[]
     */
    private $templates;

    /**
     * Add template to initializer
     *
     * @param string            $name
     * @param TemplateInterface $template
     *
     * @return Initializer
     */
    public function addTemplate($name, TemplateInterface $template)
    {
        $this->templates[$name] = $template;

        return $this;
    }

    /**
     * Get template names
     *
     * @return array
     */
    public function getTemplateNames()
    {
        return array_keys($this->templates);
    }

    /**
     * Initialize deployer in project
     *
     * @param string $template
     * @param string $directory
     * @param string $file
     *
     * @return string The configuration file path
     *
     * @throws TemplateNotFoundException
     */
    public function initialize($template, $directory, $file = 'deploy.php')
    {
        if (!isset($this->templates[$template])) {
            throw TemplateNotFoundException::create($template, array_keys($this->templates));
        }

        $this->checkDirectoryBeforeInitialize($directory);
        $this->checkFileBeforeInitialize($directory, $file);

        $filePath = $directory . '/' . $file;

        $this->templates[$template]->initialize($filePath);

        return $filePath;
    }

    /**
     * Check the directory before initialize
     *
     * @param string $directory
     *
     * @throws IOException
     */
    private function checkDirectoryBeforeInitialize($directory)
    {
        if (!file_exists($directory)) {
            set_error_handler(function ($errCode, $errStr) use ($directory) {
                $parts = explode(':', $errStr, 2);
                $errorMessage = isset($parts[1]) ? trim($parts[1]) : 'Undefined';

                throw new IOException(sprintf(
                    'Could not create directory "%s". %s',
                    $directory,
                    $errorMessage
                ), $errCode);
            });

            mkdir($directory, 0775);

            restore_error_handler();
        } elseif (!is_dir($directory)) {
            throw new IOException(sprintf(
                'Can not create directory. The path "%s" already exist.',
                $directory
            ));
        } elseif (!is_writable($directory)) {
            throw new IOException(sprintf(
                'The directory "%s" is not writable.',
                $directory
            ));
        }
    }

    /**
     * Check the file before initialize
     *
     * @param string $directory
     * @param string $file
     *
     * @throws IOException
     */
    private function checkFileBeforeInitialize($directory, $file)
    {
        $filePath = $directory . '/' . $file;

        if (file_exists($filePath)) {
            throw new IOException(sprintf(
                'Can not initialize deployer. The file "%s" already exist.',
                $filePath
            ));
        }

        touch($filePath);
    }
}