<?php



class AuthItem extends ActiveRecordModel

{

    const PAGE_SIZE = 10;



	const PHOTOS_DIR = 'upload/news';



	const ROLE_DEFAULT = 'user';

    const ROLE_GUEST   = 'guest';

    const ROLE_ROOT    = 'admin';



    const TYPE_OPERATION = 0;

    const TYPE_TASK      = 1;    

    const TYPE_ROLE      = 2;



	public $module;



    public $parent;



	public static $system_roles = array(

        self::ROLE_DEFAULT,

        self::ROLE_GUEST,

        self::ROLE_ROOT

    );





	public static function model($className=__CLASS__)

	{

		return parent::model($className);

	}





	public function tableName()

	{

		return 'AuthItem';

	}





	public function rules()

	{

		return array(

			array('name, description', 'required'),

			array(

			    'name', 

			    'match', 

			    'pattern' => '/^[A-Za-z_]+$/ui', 

			    'message' => 'только латинский алфавит и нижнее подчеркивание'

			),

			array('type, allow_for_all', 'numerical', 'integerOnly' => true),

			array('name', 'length', 'max' => 64),

			array('description, bizrule, data', 'safe'),

			array('name', 'TypeUnique'),

			array('name, type, description, bizrule, data', 'safe', 'on' => 'search'),

		);

	}

	

	

	public function typeUnique($attr) 

	{  

		$exist = $this->findByAttributes(array('type' => $this->type, 'name' => $this->$attr));	

		if ($exist) 

		{   

		    if ($exist->primaryKey != $this->primaryKey) 

		    {

		        $this->addError($attr, 'Данное имя уже занято!');

		    }	

		}

	}





	public function relations()

	{

		return array(

		    'operations' => array(

                self::MANY_MANY,

                'AuthItem',

                'AuthItemChild(parent, child)',

                'condition' => 'type = "' . self::TYPE_OPERATION . '"'

            ),

            'tasks' => array(

                self::MANY_MANY,

                'AuthItem',

                'AuthItemChild(parent, child)',

                'condition' => 'type = "' . self::TYPE_TASK . '"'

            ),

            'assignments' => array(self::HAS_MANY, 'AuthAssignment', 'itemname'),

            'users'       => array(self::HAS_MANY, 'User', 'userid', 'through' => 'assignments')

		);

	}





    public function attributeLabels()

    {

        $labels = parent::attributeLabels();

        $labels['operations'] = 'Операции';

        $labels['tasks'] = 'Задачи';



        return $labels;

    }





    public function getTask()

    {

        $sql = "SELECT * FROM AuthItem

                         WHERE name = (SELECT parent FROM AuthItemChild WHERE child = '" . $this->name . "')";



        return $this->findBySql($sql);

    }





	public function search($type)

	{

		$criteria = new CDbCriteria;

		$criteria->compare('name', $this->name, true);

		$criteria->compare('type', $this->type);

		$criteria->compare('description', $this->description, true);

		$criteria->compare('bizrule', $this->bizrule, true);

		$criteria->compare('data', $this->data, true);

        $criteria->addCondition('type = ' . $type);



		return new ActiveDataProvider(get_class($this), array(

			'criteria' => $criteria

		));

	}



	

	public function getModulesWithActions() 

	{

        $result = array();

        

        $items = AuthItem::model()->findAllByAttributes(array("type" => AuthItem::TYPE_OPERATION));

        

	    $modules = AppManager::getModulesData(true);

	    foreach ($modules as $class => $data) 

	    {

	        $actions = AppManager::getModuleActions($class);

	        

	        foreach ($items as $item) 

	        {

	            if (isset($actions[$item->name])) 

	            {

	                unset($actions[$item->name]); 

	            }

	        }

	        

	        if ($actions) 

	        {

	            $result[$class] = $data;

	        }

	    }         

	

        return $result;  

	}

	



    public static function constructName($controller, $action)

    {

        return ucfirst($controller) . '_' . ucfirst($action);

    }





    public function getRoles()

    {

        return $this->findAllByAttributes(array(

            'type' => self::TYPE_ROLE

        ));

    }





    public function actionExists()

    {

        list($controller, $action) = explode('_', $this->name);



        $controller_class = $controller . 'Controller';

        $controller_file  = $controller_class  . '.php';



        $modules = Yii::app()->getModules();



        foreach ($modules as $module)

        {

            $module_dir  = array_shift(explode('.', $module['class']));

            $module_path = Yii::getPathOfAlias("application.modules.{$module_dir}");



            $controllers_path = $module_path . DIRECTORY_SEPARATOR . 'controllers' .DIRECTORY_SEPARATOR;

            if (!is_dir($controllers_path))

            {

                continue;

            }



            $controllers_files = scandir($controllers_path);

            

            if (in_array($controller_file, $controllers_files))

            {

                require_once $controllers_path . $controller_file;



                if (method_exists($controller_class, "action{$action}"))

                {

                    return true;

                }

                else

                {

                    return false;

                }

            }

        }

    }

}