Cornford\Setter\SettingBase

Complexity

Total Complexity

33

Size/Duplication

Total Lines	276
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	0

Importance

Changes	16
Bugs	2	Features	6

14 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	6	1
A	attachTag()	0	4	1
A	cacheHas()	0	4	2
A	cacheForget()	0	7	1
A	cacheClear()	0	7	1
A	configHas()	0	4	2
A	arrangeResults()	0	17	4
B	returnResults()	0	17	6
A	combineResults()	0	10	4
A	recacheItem()	0	20	3
A	returnCache()	0	6	1
A	returnConfig()	0	6	1
A	isJson()	0	10	2
A	decodeJson()	0	8	4

<?php namespace Cornford\Setter;

use DateTime;
use Illuminate\Database\DatabaseManager as Query;
use Illuminate\Config\Repository;
use Illuminate\Cache\Repository as Cache;

abstract class SettingBase {

	const LOCATION_DATABASE = 'database';
	const LOCATION_CACHE = 'cache';

	const CACHE_TAG = 'setter::';

	/**
	 * Database
	 *
	 * @var \Illuminate\Database\DatabaseManager
	 */
	protected $database;

	/**
	 * Config
	 *
	 * @var \Illuminate\Config\Repository
	 */
	protected $config;

	/**
	 * Cache
	 *
	 * @var \Illuminate\Cache\Repository
	 */
	protected $cache;

	/**
	 * Cache
	 *
	 * @var integer|datetime|boolean
	 */
	protected $expiry = true;

	/**
	 * Construct Setter
	 *
	 * @param Query      $database
	 * @param Repository $config
	 * @param Cache      $cache
	 */
	public function __construct(Query $database, Repository $config, Cache $cache)
	{
		$this->database = $database;
		$this->config = $config;
		$this->cache = $cache;
	}

	/**
	 * Return a key with an attached cache tag
	 *
	 * @param string $key
	 *
	 * @return string
	 */
	protected function attachTag($key)
	{
		return self::CACHE_TAG . $key;
	}

	/**
	 * Check a setting exists in cache
	 *
	 * @param string $key
	 *
	 * @return boolean
	 */
	public function cacheHas($key)
	{
		return $this->cache->has($this->attachTag($key)) ? true : false;
	}


	/**
	 * Forget a cached setting by key
	 *
	 * @param string $key
	 *
	 * @return boolean
	 */
	public function cacheForget($key)
	{
		$this->cache
			->forget($this->attachTag($key));

		return true;
	}

	/**
	 * Clear all cached settings
	 *
	 * @return boolean
	 */
	public function cacheClear()
	{
		$this->cache
			->flush();

		return true;
	}

	/**
	 * Check a setting exists in config
	 *
	 * @param string $key
	 *
	 * @return boolean
	 */
	public function configHas($key)
	{
		return $this->config->has($key) ? true : false;
	}

	/**
	 * Arrange results into an associative array
	 *
	 * @param array  $results
	 * @param string $key
	 *
	 * @return array
	 */
	protected function arrangeResults($results, $key = null)
	{
		$return = array();

		foreach ($results as $path => $value) {
			$parts = strpos($path, '.') > 0 ? explode('.', trim(preg_replace('/^' . $key . '/', '', $path), '.')) : array($path);
			$target =& $return;

			foreach ($parts as $part) {
				$target =& $target[$part];
			}

			$target = $this->decodeJson($value);
		}

		return $return;
	}

	/**
	 * Return result values
	 *
	 * @param array  $results
	 * @param string $key
	 *
	 * @return string|array
	 */
	protected function returnResults($results = array(), $key)
	{
		$items = $this->arrangeResults($results, $key);
		$return = $this->combineResults($items, $key);

		if ((!is_array($this->returnConfig($key)) || count($this->returnConfig($key)) == 0) &&
			(array_key_exists($key, $return) || array_key_exists('', $return))
			&& count($return) == 1
		) {
			$return = reset($return);
		}

		$this->cache->forget($this->attachTag($key));
		$this->cache->add($this->attachTag($key), $return, $this->expiry);

		return $this->decodeJson($return);
	}

	/**
	 * Combine result values from the database and configuration
	 *
	 * @param array  $results
	 * @param string $key
	 *
	 * @return array
	 */
	protected function combineResults(array $results = array(), $key)
	{
		$config = $this->returnConfig($key);

		if (is_array($config)) {
			return array_replace_recursive($config, ((array_key_exists($key, $results) || array_key_exists('', $results)) ? reset($results) : $results));
		}

		return $results;
	}

	/**
	 * Re-cache item and its parents
	 *
	 * @param string $value
	 * @param string $key
	 *
	 * @return void
	 */
	protected function recacheItem($value, $key)
	{
		for ($i = 0; $i <= substr_count($key, '.') - 1; $i++) {
			$j = $i;
			$position = 0;

			while ($j >= 0) {
				$position =+ strpos($key, '.', $position) + 1;
				$j--;
			}

			$this->cache
				->forget($this->attachTag(rtrim(substr_replace($key, '', $position), '.')));
		}

		$this->cache
			->forget($this->attachTag($key));
		$this->cache
			->add($this->attachTag($key), $value, $this->expiry);
	}

	/**
	 * Return cache values
	 *
	 * @param string $key
	 *
	 * @return string|array
	 */
	protected function returnCache($key)
	{
		$value = $this->cache->get($this->attachTag($key));

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

	/**
	 * Return config values
	 *
	 * @param string $key
	 *
	 * @return string|array
	 */
	protected function returnConfig($key)
	{
		$value = $this->config->get($key);

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

	/**
	 * Is the string Json encoded.
	 *
	 * @param string $string
	 * @return boolean
	 */
	protected function isJson($string)
	{
		if (!is_string($string)) {
			return false;
		}

		json_decode($string);

		return (json_last_error() == JSON_ERROR_NONE);
	}

	/**
	 * Decode a Json item.
	 *
	 * @param mixed $value
	 *
	 * @return mixed
	 */
	protected function decodeJson($value)
	{
		if ($this->isJson($value)) {
			return ($value === '""' || $value === '' ? '' : json_decode($value));
		}

		return $value;
	}

}