/lenasys/trunk

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

	class Ajax extends CI_Controller {

		/*

		 *	Constructor

		 */

		function __construct() {

			parent::__construct();

			//Load required library

			$this->load->model('user', '', TRUE);

		}

		/*

		 *	This function loads a popupview to be displayed, the argument is the name of the popupview

		 */

		public function popup($popupName) {

			$this->load->view('popup/'.$popupName);

		}

		function showPopup($popupName) {

			$headTagData = array(

				'cssFiles' => array('popup'),

				'jsFiles' => array('login')

			);

			$userInfo = array(

				'userType' => $this->user->getUserType(), // Loads different header for teacher/student

				'userName' => $this->user->getUserName()

			);

			// Loads head views, supplying CSS and JS data

			$this->load->view('headTag', array('headTagData' => $headTagData));

			$this->load->view('popup/'.$popupName);

		}

		/*

		 *	This function return TRUE if the user is logged in and FALSE otherwise.

		 */

		public function isLoggedIn() {

			if ($this->user->isLoggedIn()) {

				echo 'yes';

			}

			else {

				echo 'no';

			}

		}

		/*

		 *	This function outputs data: user password hint.

		 */

		public function pwdhint() {

			$this->load->model('user');

			if($this->input->post('username')) {

				$username = $this->input->post('username');

				$data = array(

					'hint' => $this->user->getPasswordHint($username)

				);

				//Output JSON data

				echo json_encode($data);

			}

		}

		/*

		 *	This function outputs data: user password hint.

		 */

		public function ladok() {

			$string = $this->input->post('data');

			$parsedArray = $this->user->parseLadok($string);

			if ($parsedArray === FALSE) {

				$data = array('status' => FALSE);				

			} else {

				//Add users to database

				foreach ($parsedArray as $key => $value) {

					$this->user->addUser($parsedArray[$key]['username'], $parsedArray[$key]['firstname'] . ' ' . $parsedArray[$key]['lastname'], $parsedArray[$key]['ssn'], $parsedArray[$key]['ssn'], 'Student', 'Default', $parsedArray[$key]['email']);

				}

				$data = array('status' => TRUE);			

			}

			//Output JSON data

			echo json_encode($data);

		}

		/*

		 *	This function outputs data: user password hint.

		 */

		public function pwdchange() {

			$pwdOld = $this->input->post('currentPwd');

			$pwdNew = $this->input->post('newPwd');

			$pwdHint = $this->input->post('hintPwd');

			$data = array(

				'status' => $this->user->changePassword($pwdOld, $pwdNew, $pwdHint)

			);

			//Output JSON data

			echo json_encode($data);

		}

		public function categoryOrderDecrease(){

			$pwdOld = $this->input->post('currentPwd');

			$pwdNew = $this->input->post('newPwd');

		}

		// Takes a course ID and sets the course to published (isHidden = 0)

		public function publishCourse($courseID) {

			$this->load->model('user');

			$this->load->model('admin/admin_model');

			if(!$this->user->isLoggedIn() || $this->user->getUserType() != "Teacher") {

				$this->load->view('manageCoursesMessage', array('message' => 'You do not have access to this page'));

				echo "not logged in";

				return;

			}

			$this->admin_model->unsetCourseHidden($courseID);

		}

		//Takes a course ID and sets the course to unpublished (isHidden = 1)

		public function unpublishCourse($courseID) {

			$this->load->model('user');

			$this->load->model('admin/admin_model');

			if(!$this->user->isLoggedIn() || $this->user->getUserType() != "Teacher") {

				$this->load->view('manageCoursesMessage', array('message' => 'You do not have access to this page'));

				echo "not logged in";

				return;

			}

			$this->admin_model->setCourseHidden($courseID);

		}

	}

?>