Deployer\Configuration\Configuration

Complexity

Total Complexity

28

Size/Duplication

Total Lines	119
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	2

Test Coverage

Coverage

70%

Importance

Changes

0

15 Methods

Rating	Name	Duplication	Size	Complexity
A	getCollection()	0	4	1
B	get()	0	20	6
A	offsetGet()	0	4	1
A	__construct()	0	5	1
A	setCollection()	0	4	1
A	set()	0	4	1
A	add()	0	12	3
A	has()	0	4	1
A	parse()	0	8	2
A	offsetExists()	0	4	1
A	offsetSet()	0	4	1
A	offsetUnset()	0	4	1
A	persist()	0	14	4
A	parseCallback()	0	4	2
A	isClosure()	0	4	2

<?php declare(strict_types=1);
/* (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\Configuration;

use Deployer\Collection\Collection;
use Deployer\Deployer;
use Deployer\Exception\ConfigurationException;
use function Deployer\Support\array_merge_alternate;

class Configuration implements \ArrayAccess
{
    public $parent;
    private $collection;

    public function __construct(Configuration $parent = null)
    {
        $this->parent = $parent;
        $this->collection = new Collection();
    }

    public function getCollection(): Collection
    {
        return $this->collection;
    }

    public function setCollection(Collection $collection)
    {
        $this->collection = $collection;
    }

    public function set(string $name, $value)
    {
        $this->collection[$name] = $value;
    }

    public function add(string $name, array $array)
    {
        if ($this->has($name)) {
            $config = $this->get($name);
            if (!is_array($config)) {
                throw new ConfigurationException("Configuration parameter `$name` isn't array.");
            }
            $this->set($name, array_merge_alternate($config, $array));
        } else {
            $this->set($name, $array);
        }
    }

    public function get(string $name, $default = null)
    {
        if ($this->collection->has($name)) {
            if ($this->isClosure($this->collection[$name])) {
                $value = $this->collection[$name] = call_user_func($this->collection[$name]);
            } else {
                $value = $this->collection[$name];
            }
        } else if ($this->parent && $this->parent->has($name)) {
            $value = $this->collection[$name] = $this->parent->get($name, $default);
        } else {
            if (null === $default) {
                throw new ConfigurationException("Configuration parameter `$name` does not exist.");
            } else {
                $value = $default;
            }
        }

        return $this->parse($value);
    }

    public function has(string $name): bool
    {
        return $this->collection->has($name);
    }

    public function parse($value)
    {
        if (is_string($value)) {
            return preg_replace_callback('/\{\{\s*([\w\.\/-]+)\s*\}\}/', [$this, 'parseCallback'], $value);
        }

        return $value;
    }

    public function offsetExists($offset)
    {
        return $this->has($offset);
    }

    public function offsetGet($offset)
    {
        return $this->get($offset);
    }

    public function offsetSet($offset, $value)
    {
        $this->set($offset, $value);
    }

    public function offsetUnset($offset)
    {
        unset($this->collection[$offset]);
    }

    public function persist()
    {
        $values = [];
        if ($this->parent !== null) {
            $values = $this->parent->persist();
        }
        foreach ($this->collection as $key => $value) {
            if ($this->isClosure($value)) {
                continue;
            }
            $values[$key] = $value;
        }
        return $values;
    }

    private function parseCallback(array $matches)
    {
        return isset($matches[1]) ? $this->get($matches[1]) : null;
    }

    private function isClosure($var)
    {
        return is_object($var) && ($var instanceof \Closure);
    }
}