<?php

/**

 * Modules Class

 *

 * @package 	Ionize CMS

 * @subpackage 	User

 * @author 		Ionize Dev Team

 *

 */



namespace Ionize {





	if ( ! defined('BASEPATH')) exit('No direct script access allowed');





	class Modules {



		private static $ci;



		/**

		 * Contains the Modules instance.

		 *

		 * @var Modules

		 */

		private static $instance;



		/**

		 * All modules definition

		 *

		 * @var null|array

		 */

		private static $modules = NULL;





		/**

		 * Installed modules definition

		 *

		 * @var null|array

		 */

		private static $installed_modules = NULL;





		private static $resources = NULL;





		// --------------------------------------------------------------------



		/**

		 * Constructor

		 *

		 */

		public function __construct()

		{

			self::$instance =& $this;



			log_message('debug', 'Class Module initialized');



			static::get_modules();

		}





		// --------------------------------------------------------------------





		public static function get_module_config($module_folder)

		{

			$modules = static::get_modules();



			if (isset($modules[ucfirst($module_folder)]))

			{

				return $modules[ucfirst($module_folder)];

			}

			return array();

		}





		// --------------------------------------------------------------------





		public static function get_module_config_from_uri($module_uri)

		{

			$module_folder = NULL;



			// Modules from config file

			$modules = $aliases = $disable_controller = array();

			include APPPATH . 'config/modules.php';



			if(in_array($module_uri, array_keys($modules)) && ( ! in_array($module_uri, $disable_controller)))

				$module_folder = $modules[$module_uri];



			$all_modules = static::get_modules();



			if (isset($all_modules[ucfirst($module_folder)]))

			{

				return $all_modules[ucfirst($module_folder)];

			}

			return array();

		}





		// --------------------------------------------------------------------





		public static function get_resources()

		{

			if ( is_null(static::$resources))

			{

				$resources = array();



				$modules = static::get_installed_modules();



				foreach($modules as $module_key => $module)

				{

					$module_key = strtolower($module_key);



					$base_module_resource = 'module/' . $module_key;



					// Basic Module resource (root)

					$resources[] = array(

						'id_resource' => $base_module_resource,

						'id_parent' => '',

						'resource' => $base_module_resource,

						'actions' => '',

						'title' => $module['name'],

						'description' => '',

					);



					if (isset($module['resources']))

					{

						foreach($module['resources'] as $resource => $data)

						{

							// Root module actions

							if ( empty($resource))

							{

								$resources[0]['id_resource'] = $base_module_resource;

								$resources[0]['actions'] = ! empty($data['actions']) ? $data['actions'] : '';

								$resources[0]['title'] = ! empty($data['title']) ? $data['title'] : '';

								$resources[0]['description'] = ! empty($data['description']) ? $data['description'] : '';

							}

							else

							{

								$resources[] = array(

									'id_resource' => $base_module_resource .'/' . $resource,

									'id_parent' => ! empty($data['parent']) ? $base_module_resource .'/'.$data['parent'] : $base_module_resource,

									'resource' => $base_module_resource .'/' . $resource,

									'actions' => ! empty($data['actions']) ? $data['actions'] : '',

									'title' => ! empty($data['title']) ? $data['title'] : '',

									'description' => ! empty($data['description']) ? $data['description'] : $resource,

								);

							}

						}

					}

				}

				static::$resources = $resources;

			}



			return static::$resources;

		}





		// --------------------------------------------------------------------





		/**

		 * Get all modules

		 *

		 * @return array|null

		 *

		 */

		public static function get_modules()

		{

			if (is_null(static::$modules))

			{

				static::$modules = array();

				static::$installed_modules = array();



				// Installed modules, stored in application/config/modules.php

				$modules = array();

				include(APPPATH.'config/modules.php');



				// All modules folders

				$folders = glob(MODPATH.'*');



				if ( ! empty($folders))

				{

					foreach($folders as $folder)

					{

						if (is_dir($folder))

						{

							$file = $folder .'/config/config.php';

							if (is_file($file))

							{

								$config = include($file);



								if ( isset($config) && is_array($config))

								{

									$folder_name = array_pop(explode('/', $folder));



									$config['path'] = $folder;

									$config['folder'] = $folder_name;

									$config['key'] = strtolower($folder_name);

									$config['installed'] = FALSE;

									if ( ! isset($config['uri'])) $config['uri'] = $config['key'];



									if (in_array($folder_name, $modules))

									{

										$config['installed'] = TRUE;

										$config['front_uri'] = array_search($folder_name, $modules);

										static::$installed_modules[$folder_name] = $config;

									}



									static::$modules[$folder_name] = $config;

								}

								unset($config);

							}

						}

					}

				}

			}



			return static::$modules;

		}





		// --------------------------------------------------------------------





		/**

		 * Returns installed modules

		 *

		 * @return array|null

		 *

		 */

		public static function get_installed_modules()

		{

			static::get_modules();



			return static::$installed_modules;

		}





		// --------------------------------------------------------------------





		/**

		 * Get the instance of the Lib

		 *

		 */

		public static function get_instance()

		{

			if( ! isset(self::$instance))

			{

				new Modules();



				self::$ci->load->_ci_loaded_files[] = APPPATH.'core/Modules.php';

			}



			return self::$instance;

		}

	}

}



// --------------------------------------------------------------------



namespace {



	/**

	 * Returns the authentication object, short for Modules::get_instance().

	 *

	 * @return Ionize\Modules

	 */

	function Modules()

	{

		return Ionize\Modules::get_instance();

	}



}