<?php

class UserController extends Controller {
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout = '//layouts/column2';

	/**
	 * @return array action filters
	 */
	public function filters() {
		return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules() {
		return array(
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('create', 'update', 'index', 'view', 'admin', 'delete', 'newPassword'),
				'users'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id) {
		$this->render('view', array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate() {
		$model = new User;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if (isset($_POST['User'])) {
			$model->attributes = $_POST['User'];
			if ($model->save()) {
				$this->redirect(array('view', 'id'=>$model->id));
			}
		}

		$this->render('create', array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id) {
		$model = $this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if (isset($_POST['User'])) {
			$model->attributes = $_POST['User'];
			if ($model->save()) {
				$this->redirect(array('view', 'id'=>$model->id));
			}
		}

		$this->render('update', array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id) {
		if (Yii::app()->request->isPostRequest) {
			// we only allow deletion via POST request
			$this->loadModel($id)->delete();

			// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
			if (!isset($_GET['ajax'])) {
				$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
			}
		} else {
			throw new CHttpException(400, 'Invalid request. Please do not repeat this request again.');
		}
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex() {
		$dataProvider = new CActiveDataProvider('User');
		$this->render('index', array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin() {
		$model = new User('search');
		$model->unsetAttributes();  // clear any default values
		if (isset($_GET['User'])) {
			$model->attributes = $_GET['User'];
		}

		$this->render('admin', array(
			'model'=>$model,
		));
	}
	
	public function actionNewPassword() {
	    if (Yii::app()->request->isAjaxRequest) {
	        if (isset($_POST['id'])) {
	            $model = $this->loadModel($_POST['id']);
	            
	            $pw = $model->generateNewPassword();
	            
	            $model->password = $pw;
	            $model->admin_pw_reset = true;
	            
	            if ($model->save()) {
	                // TODO Send email
	                 echo CJSON::encode(array(
                        'status'=>'success',
                        'message'=>'Das neue Passwort wurde erfolgreich generiert: '.$pw
    	            ));
	                Yii::app()->end();
	            } else {
	                echo CJSON::encode(array(
                        'status'=>'failure',
                        'message'=>'Fehler bei der Generierung des neuen Passworts.'
	                ));
	            }
	        } else {
	            throw new CHttpException(400);
	        }
	    } else {
	        throw new CHttpException(400);
	    }
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer the ID of the model to be loaded
	 */
	public function loadModel($id) {
		$model = User::model()->findByPk($id);
		if ($model === null) {
			throw new CHttpException(404, 'The requested user does not exist.');
		}
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param CModel the model to be validated
	 */
	protected function performAjaxValidation($model) {
		if(isset($_POST['ajax']) && $_POST['ajax'] === 'user-form') {
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}