<?php

	/**
	* Execute an action (request which no need html view response: ajax,json etc...) and manage automatically
	* access rights, exceptions and json response.
	* @author valentin carruesco
	* @category Core
	* @license cc by nc sa
	*/
	
	class Action{

		/**
		* Execute an action 
		* #### Example
		* ```php
		* Action::write(function($_,&$response){ 
		*	$response['custom'] = 'hello world!'; 
		* },array('user'=>'u','plugin'=>'d')); //User must have user update right and delete plugin right to perform this action
		* ```
		* @param function action/code to execute
		* @param array Array wich contain right to execute action
		* @return print json response
		*/

		public static function write($f,$p=array()){
			global $myUser,$_,$conf;
			header('content-type:application/json');
			$response = array('errors' => array());
			set_error_handler(function($level,$error,$file,$line){ throw new Exception($error." \r\n\r\n  ".$file." - L ".$line."");});
			try{
				foreach ($p as $section => $right) {
					if(!$myUser->can($section,$right)) throw new Exception('Vous ne disposez pas des droits suffisants pour effectuer cette action');
				}
				$f($_,$response);
				if(!isset($response['errors'])) $response['errors'] = array();
			}catch(Exception $e){
				$response['errors'][] = $e->getMessage();
			}
			echo json_encode($response);
			restore_error_handler();
		}
	}
?>