Borobudur\Config\FileLoader\IniFileLoader

Complexity

Total Complexity

19

Size/Duplication

Total Lines	158
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Importance

Changes	4
Bugs	2	Features	1

7 Methods

Rating	Name	Duplication	Size	Complexity
A	assertNoNestedArray()	0	9	2
A	import()	0	12	1
A	write()	0	11	2
A	appendString()	0	21	4
A	normalizeString()	0	10	3
A	normalize()	0	13	3
B	mapValueType()	0	22	4

<?php
/*
 * This file is part of the Borobudur-Config package.
 *
 * (c) Hexacodelabs <http://hexacodelabs.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Borobudur\Config\FileLoader;

use Borobudur\Config\Exception\Exception;

/**
 * @author      Iqbal Maulana <iq.bluejack@gmail.com>
 * @created     8/12/15
 */
class IniFileLoader extends AbstractFileLoader
{
    /**
     * @var array
     */
    protected $extensions = array('ini', 'env');

    /**
     * Assert that value can't be nested array.
     *
     * @param string $parent
     * @param string $child
     * @param mixed  $value
     *
     * @throws Exception
     */
    private static function assertNoNestedArray($parent, $child, $value)
    {
        if (is_array($value)) {
            throw new Exception(sprintf(
                'Extension .ini cannot use nested array on "%s".',
                $parent . '.' . $child
            ));
        }
    }

    /**
     * {@inheritdoc}
     */
    public function import(FileLocator $file)
    {
        $this->validateExtension($file->getExtension());

        $content = str_replace(array('false', 'FALSE'), array('"(bool)false"'), $file->readFile());
        $content = str_replace(array('true', 'TRUE'), array('"(bool)true"'), $content);
        $content = str_replace(array('null', 'NULL'), array('"(null)"'), $content);

        $configs = $this->normalize(array_filter(parse_ini_string($content, true)));

        return $this->normalize($configs);
    }

    /**
     * {@inheritdoc}
     */
    public function write(array $configs, $file)
    {
        $this->validateExtension(pathinfo($file, PATHINFO_EXTENSION));

        $str = '';
        foreach ($configs as $name => $value) {
            $this->appendString($str, $name, $value);
        }

        file_put_contents($file, ltrim($str, "\n"));
    }

    /**
     * Append string from data.
     *
     * @param string $str
     * @param string $name
     * @param mixed  $value
     *
     * @throws Exception
     */
    private function appendString(&$str, $name, $value)
    {
        if (is_array($value)) {
            $section = false;
            foreach ($value as $n => $v) {
                self::assertNoNestedArray($name, $n, $v);

                if (false === $section) {
                    $section = true;
                    $str .= "\n\n";
                    $str .= sprintf('[%s]', $name);
                }

                $str .= $this->normalizeString($n, $v);
            }

            return;
        }

        $str .= $this->normalizeString($name, $value);
    }

    /**
     * Normalize string.
     *
     * @param string $name
     * @param string $value
     *
     * @return string
     */
    private function normalizeString($name, $value)
    {
        if (false === $value) {
            $value = 'false';
        } elseif (true === $value) {
            $value = 'true';
        }

        return "\n" . sprintf('%s=%s', $name, $value);
    }

    /**
     * Normalize array config.
     *
     * @param array $configs
     *
     * @return array
     */
    private function normalize(array $configs)
    {
        foreach ($configs as $index => $config) {
            if (is_array($config)) {
                $configs[$index] = $this->normalize($config);
                continue;
            }

            $configs[$index] = $this->mapValueType($config);
        }

        return $configs;
    }

    /**
     * Mapping type of value.
     *
     * @param string $value
     *
     * @return mixed
     */
    private function mapValueType($value)
    {
        $maps = array(
            '(bool)false' => false,
            '(bool)true'  => true,
            '(null)'      => null,
        );

        if (array_key_exists((string) $value, $maps)) {
            return $maps[$value];
        }

        if (is_numeric($value)) {
            if (preg_match('/^\d+$/', $value)) {
                return (int) $value;
            }

            return (float) $value;
        }

        return $value;
    }
}