public function execute(CommandContext $context)
 {
     PHPWS_Core::initModClass('hms', 'StudentFactory.php');
     $roomId = $context->get('roomId');
     $roommates = $context->get('roommates');
     $mealPlan = $context->get('mealPlan');
     $term = PHPWS_Settings::get('hms', 'lottery_term');
     $student = StudentFactory::getStudentByUsername(UserStatus::getUsername(), $term);
     $errorCmd = CommandFactory::getCommand('LotteryShowConfirm');
     $errorCmd->setRoomId($roomId);
     $errorCmd->setRoommates($roommates);
     $errorCmd->setMealPlan($mealPlan);
     $successCmd = CommandFactory::getCommand('LotteryShowConfirmed');
     $successCmd->setRoomId($roomId);
     PHPWS_Core::initCoreClass('Captcha.php');
     $captcha = Captcha::verify(TRUE);
     // returns the words entered if correct, FALSE otherwise
     //$captcha = TRUE;
     if ($captcha === FALSE) {
         NQ::simple('hms', hms\NotificationView::ERROR, 'Sorry, the words you eneted were incorrect. Please try again.');
         $errorCmd->redirect();
     }
     PHPWS_Core::initModClass('hms', 'HousingApplication.php');
     PHPWS_Core::initModClass('hms', 'HMS_Room.php');
     PHPWS_Core::initModClass('hms', 'HMS_Bed.php');
     PHPWS_Core::initModClass('hms', 'HMS_Assignment.php');
     PHPWS_Core::initModClass('hms', 'HMS_Lottery.php');
     PHPWS_Core::initModClass('hms', 'StudentFactory.php');
     PHPWS_Core::initModClass('hms', 'HMS_Email.php');
     PHPWS_Core::initModClass('hms', 'HMS_Activity_Log.php');
     PHPWS_Core::initModClass('hms', 'HMS_Util.php');
     PHPWS_Core::initModClass('hms', 'RlcMembershipFactory.php');
     PHPWS_Core::initModClass('hms', 'RlcAssignmentSelfAssignedState.php');
     $room = new HMS_Room($roomId);
     // Check for an RLC assignment in the self-select status
     $rlcAssignment = RlcMembershipFactory::getMembership($student, $term);
     // Check roommates for validity
     foreach ($roommates as $bed_id => $username) {
         // Double check the student is valid
         try {
             $roommate = StudentFactory::getStudentByUsername($username, $term);
         } catch (StudentNotFoundException $e) {
             NQ::simple('hms', hms\NotificationView::ERROR, "{$username} is not a valid student. Please choose a different roommate.");
             $errorCmd->redirect();
         }
         // Make sure the bed is still empty
         $bed = new HMS_Bed($bed_id);
         if ($bed->has_vacancy() != TRUE) {
             NQ::simple('hms', hms\NotificationView::ERROR, 'One or more of the beds in the room you selected is no longer available. Please try again.');
             $errorCmd->redirect();
         }
         // Make sure none of the needed beds are reserved
         if ($bed->is_lottery_reserved()) {
             NQ::simple('hms', hms\NotificationView::ERROR, 'One or more of the beds in the room you selected is no longer available. Please try again.');
             $errorCmd->redirect();
         }
         // Double check the genders are all the same as the person logged in
         if ($student->getGender() != $roommate->getGender()) {
             NQ::simple('hms', hms\NotificationView::ERROR, "{$username} is a different gender. Please choose a roommate of the same gender.");
             $errorCmd->redirect();
         }
         // Double check the genders are the same as the room (as long as the room isn't AUTO)
         if ($room->gender_type != AUTO && $roommate->getGender() != $room->gender_type) {
             NQ::simple('hms', hms\NotificationView::ERROR, "{$username} is a different gender. Please choose a roommate of the same gender.");
             $errorCmd->redirect();
         }
         // If this student is an RLC-self-selection, then each roommate must be in the same RLC and in the selfselect-invite state too
         if ($rlcAssignment != null && $rlcAssignment->getStateName() == 'selfselect-invite') {
             // This student is an RLC-self-select, so check the roommate's RLC status
             $roommateRlcAssign = RlcMembershipFactory::getMembership($roommate, $term);
             // Make sure the roommate is a member of the same RLC and is eligible for self-selection
             if ($roommateRlcAssign == null || $roommateRlcAssign->getStateName() != 'selfselect-invite' || $rlcAssignment->getRlc()->getId() != $roommateRlcAssign->getRlc()->getId()) {
                 NQ::simple('hms', hms\NotificationView::ERROR, "{$roommate} must be a member of the same learning community as you, and must also be eligible for self-selction.");
                 $errorCmd->redirect();
             }
             // Otherwise (if not RLC members), make sure each roommate is eligible
         } else {
             if (HMS_Lottery::determineEligibility($username) !== TRUE) {
                 NQ::simple('hms', hms\NotificationView::ERROR, "{$username} is not eligible for assignment.");
                 $errorCmd->redirect();
             }
         }
         // If this student is a self-select RLC member, then this student must also be a self-select RLC member of the same RLC
         if ($rlcAssignment != null && $rlcAssignment->getStateName() == 'selfselect-invite') {
             $roommateRlcAssign = RlcMembershipFactory::getMembership($roommate, $term);
             if ($roommateRlcAssign == null || $roommateRlcAssign->getStateName() != 'selfselect-invite' || $rlcAssignment->getRlc()->getId() != $roommateRlcAssign->getRlc()->getId()) {
                 NQ::simple('hms', hms\NotificationView::ERROR, "{$username} must be a member of the same learning community as you, and must also be eligible for self-selction.");
                 $errorCmd->redirect();
             }
         }
     }
     // If the room's gender is 'AUTO' and no one is assigned to it yet, switch it to the student's gender
     if ($room->gender_type == AUTO && $room->get_number_of_assignees() == 0) {
         $room->gender_type = $student->getGender();
         $room->save();
     }
     // Assign the student to the requested bed
     $bed_id = array_search(UserStatus::getUsername(), $roommates);
     // Find the bed id of the student who's logged in
     try {
         $result = HMS_Assignment::assignStudent($student, PHPWS_Settings::get('hms', 'lottery_term'), NULL, $bed_id, $mealPlan, 'Confirmed lottery invite', TRUE, ASSIGN_LOTTERY);
     } catch (Exception $e) {
         NQ::simple('hms', hms\NotificationView::ERROR, 'Sorry, there was an error creating your room assignment. Please try again or contact University Housing.');
         $errorCmd->redirect();
     }
     // Log the assignment
     HMS_Activity_Log::log_activity(UserStatus::getUsername(), ACTIVITY_LOTTERY_ROOM_CHOSEN, UserStatus::getUsername(), 'Captcha: ' . $captcha);
     // Update the student's meal plan in the housing application, just for future reference
     $app = HousingApplication::getApplicationByUser($student->getUsername(), $term);
     $app->setMealPlan($mealPlan);
     $app->save();
     // If this student was an RLC self-select, update the RLC memberhsip state
     if ($rlcAssignment != null && $rlcAssignment->getStateName() == 'selfselect-invite') {
         $rlcAssignment->changeState(new RlcAssignmentSelfAssignedState($rlcAssignment));
     }
     foreach ($roommates as $bed_id => $username) {
         // Skip the current user
         if ($username == $student->getUsername()) {
             continue;
         }
         # Reserve the bed for the roommate
         $expires_on = time() + INVITE_TTL_HRS * 3600;
         $bed = new HMS_Bed($bed_id);
         if (!$bed->lottery_reserve($username, $student->getUsername(), $expires_on)) {
             NQ::smiple('hms', hms\NotificationView::WARNING, "You were assigned, but there was a problem reserving space for your roommates. Please contact University Housing.");
             $successCmd->redirect();
         }
         HMS_Activity_Log::log_activity($username, ACTIVITY_LOTTERY_REQUESTED_AS_ROOMMATE, $student->getUsername(), 'Expires: ' . HMS_Util::get_long_date_time($expires_on));
         # Invite the selected roommates
         $roomie = StudentFactory::getStudentByUsername($username, $term);
         $term = PHPWS_Settings::get('hms', 'lottery_term');
         $year = Term::toString($term) . ' - ' . Term::toString(Term::getNextTerm($term));
         HMS_Email::send_lottery_roommate_invite($roomie, $student, $expires_on, $room->where_am_i(), $year);
     }
     HMS_Email::send_lottery_assignment_confirmation($student, $room->where_am_i(), $term);
     $successCmd->redirect();
 }