| Total Complexity | 47 | 
| Total Lines | 167 | 
| Duplicated Lines | 0 % | 
| Changes | 0 | ||
Complex classes like app often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use app, and based on these observations, apply Extract Interface, too.
| 1 | <?php  | 
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| 3 | class app extends Prefab  | 
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| 4 | { | 
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| 5 | public $db;  | 
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| 6 | public $app;  | 
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| 7 | public $session;  | 
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| 8 | public $authenticatedUser;  | 
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| 9 | |||
| 10 | public function __construct()  | 
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| 11 |     { | 
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| 12 | $this->app = $this->app ?: Base::instance();  | 
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| 13 | }  | 
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| 14 | |||
| 15 | public static function singleton()  | 
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| 16 |     { | 
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| 17 |         if (Registry::exists('APP')) { | 
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| 18 |             $app = Registry::get('APP'); | 
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| 19 |         } else { | 
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| 20 | $app = new self;  | 
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| 21 |             Registry::set('APP', $app); | 
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| 22 | }  | 
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| 23 | return $app;  | 
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| 24 | }  | 
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| 25 | |||
| 26 | public function db()  | 
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| 27 |     { | 
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| 28 | return $this->db ?: $this->app->DB;  | 
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| 29 | }  | 
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| 30 | |||
| 31 | public function session()  | 
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| 32 |     { | 
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| 33 | return $this->session ?: $this->app->SESSION;  | 
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| 34 | }  | 
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| 35 | |||
| 36 | public function user()  | 
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| 37 |     { | 
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| 38 |         return $this->authenticatedUser = $this->app->get('SESSION.USER')?:false; | 
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| 39 | }  | 
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| 40 | |||
| 41 | public function initialized($def = null)  | 
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| 42 |     { | 
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| 43 |         return null !== $def ? $this->app->set('INITIALIZED', $def) : $this->app->get('INITIALIZED'); | 
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| 44 | }  | 
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| 45 | |||
| 46 | public function config($key = null)  | 
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| 47 |     { | 
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| 48 | return $this->app->get($key?:'CONFIG') ;  | 
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| 49 | }  | 
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| 50 | |||
| 51 | public function status()  | 
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| 52 |     { | 
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| 53 | return $this->app->IS_LIVE;  | 
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| 54 | }  | 
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| 55 | |||
| 56 | public function run()  | 
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| 57 |     { | 
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| 58 | $this->loadConfig();  | 
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| 59 | $this->loadRoutes();  | 
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| 60 | $this->checkForMaintenance();  | 
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| 61 | $this->configureDebug();  | 
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| 62 | $this->configureDB();  | 
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| 63 | $this->configureSession();  | 
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| 64 | $this->configureAssets();  | 
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| 65 | $this->registerErrorHandler();  | 
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| 66 | $this->initialized(true);  | 
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| 67 | $this->app->run();  | 
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| 68 | }  | 
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| 69 | |||
| 70 | public function loadRoutes($file = null)  | 
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| 71 |     { | 
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| 72 |         $this->_load('routes', $file); | 
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| 73 | }  | 
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| 74 | |||
| 75 | public function loadConfig($file = null)  | 
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| 76 |     { | 
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| 77 |         $this->_load('config', $file); | 
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| 78 | }  | 
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| 79 | |||
| 80 | private function _load($path, $file = null)  | 
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| 81 |     { | 
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| 82 |         if ($file) { | 
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| 83 |             $this->app->config(base_path("{path}/{$file}")); | 
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| 84 |         } else { | 
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| 85 |             foreach (glob(base_path("{$path}/*.ini")) as $file) { | 
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| 86 | $this->app->config($file);  | 
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| 87 | }  | 
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| 88 | }  | 
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| 89 | }  | 
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| 90 | |||
| 91 | public function checkForMaintenance()  | 
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| 92 |     { | 
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| 93 |         if (!$this->status()) { | 
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| 94 |             template('maintenance'); | 
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| 95 | exit();  | 
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| 96 | }  | 
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| 97 | }  | 
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| 98 | |||
| 99 | public function configureDebug()  | 
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| 100 |     { | 
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| 101 |         if (!$this->app->DEV) { | 
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| 102 |             $this->app->set('DEBUG', 0); | 
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| 103 | }  | 
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| 104 | }  | 
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| 105 | |||
| 106 | public function configureDB()  | 
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| 107 |     { | 
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| 108 | $type = strtolower($this->app->DB_TYPE);  | 
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| 109 | |||
| 110 |         if ($type == 'jig') { | 
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| 111 | $this->db = new DB\Jig($this->app->DB_PATH, DB\Jig::FORMAT_JSON);  | 
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| 112 |         } elseif ($type == 'sql') { | 
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| 113 | $this->db = new DB\SQL($this->app->DB, $this->app->DB_USER, $this->app->DB_PSWD);  | 
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| 114 |         } elseif ($type == 'mongo') { | 
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| 115 | $this->db = new DB\Mongo($this->app->DB, $this->app->DB_USER);  | 
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| 116 | }  | 
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| 117 |         $this->app->set('DB', $this->db); | 
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| 118 | }  | 
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| 119 | |||
| 120 | public function configureSession()  | 
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| 121 |     { | 
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| 122 | $type = strtolower($this->app->SESSION);  | 
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| 123 | |||
| 124 |         if ($type) { | 
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| 125 |             if ($this->app->CSRF && ('jig' == $type || 'sql' == $type || 'mongo' == $type)) { | 
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| 126 | $this->configureCSRF($type);  | 
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| 127 |             } elseif ($this->app->CSRF) { | 
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| 128 | $this->session = new Session(null, 'CSRF');  | 
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| 129 |             } else { | 
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| 130 |                 if ($type == 'jig' || $type == 'mongo' || $type == 'sql') { | 
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| 131 |                     $session = str_ireplace('/', '', 'DB\/'.$this->_getDBType($type).'\Session'); | 
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| 132 | $this->session = new $session($this->app->DB);  | 
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| 133 |                 } else { | 
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| 134 | $this->session = new Session();  | 
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| 135 | }  | 
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| 136 | }  | 
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| 137 |             $this->app->set('SESSION', $this->session); | 
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| 138 | }  | 
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| 139 | }  | 
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| 140 | |||
| 141 | public function configureCSRF($type)  | 
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| 142 |     { | 
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| 143 |         $session = str_ireplace('/', '', 'DB\/'.$this->_getDBType($type).'\Session'); | 
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| 144 | $this->session = new $session($this->app->DB, 'sessions', null, 'CSRF');  | 
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| 145 | }  | 
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| 146 | |||
| 147 | private function _getDBType($type)  | 
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| 153 | }  | 
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| 154 | }  | 
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| 155 | |||
| 156 | public function configureAssets()  | 
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| 157 |     { | 
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| 158 | $assets = Assets::instance();  | 
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| 159 |         $this->app->set('ASSETS.onFileNotFound', function ($file) { | 
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| 160 | echo 'file not found: '.$file;  | 
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| 161 | });  | 
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| 162 | }  | 
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| 163 | |||
| 164 | public function registerErrorHandler()  | 
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| 170 | }  | 
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| 171 | }  | 
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| 172 | }  | 
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| 173 | 
Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum.