| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * @author Marwan Al-Soltany <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * @copyright Marwan Al-Soltany 2020 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * For the full copyright and license information, please view | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * the LICENSE file that was distributed with this source code. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | namespace MAKS\AmqpAgent\Helper; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | use Closure; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * A trait containing events handling functions (adds events triggering and binding capabilities) to a class. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * @since 2.0.0 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | trait EventTrait | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |      * Here lives all bindings. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |      * @var array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |     protected static $events = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |      * Executes callbacks attached to the passed event with the passed arguments. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |      * @param string $event Event name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |      * @param array $arguments [optional] Arguments array. Note that the arguments will be spread (`...$args`) on the callback. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |      * @return void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     protected static function trigger(string $event, array $arguments = []): void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         if (isset(self::$events[$event]) && count(self::$events[$event])) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |             $callbacks = &self::$events[$event]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |             foreach ($callbacks as $callback) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |                 call_user_func_array($callback, array_values($arguments)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |             self::$events[$event] = []; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      * Binds the passed function to the passed event. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |      * @param string $event Event name. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |      * @param Closure $function A closure to process the event. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |      * @return void | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 48 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 49 |  |  |     protected static function bind(string $event, Closure $function): void | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 51 |  |  |         self::$events[$event][] = $function; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      * Returns array of all registered events as an array `['event.name' => [$cb1, $cb2, ...]]`. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |     public static function getEvents(): array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |         return self::$events; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 62 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 63 |  |  |  |