<?php
    require_once(dirname(dirname(__FILE__))."/engine/engine.php");

    gatekeeper();
	action_gatekeeper();

    $course_id = get_input('course_id');
	$user_id = get_input('user_id');

	$course = new Course($course_id);
	$course->load();

	if ($course && $course->getType() == 'course' && $course->isRegistrationOpen()) {
		if ($course->isLearner($user_id)) {
			$Dippler->add_system_message(_("Already is a learner."), 'error');
			forward($course->getURL('learners'));
		}
		$status = $course->getLearnerDefaultStatus();	
		if ($course->canEdit()) {
			$added = $course->addLearner($user_id);
		} else {
			$added = $course->enrollLearner($user_id);
		}

		if ($added) {
			if ($status == 5) {
				if ($course->canEdit()) {
					$Dippler->add_system_message(_("Learner added to the course."));
				} else {
					$Dippler->add_system_message(_("You have been enrolled to the course."));
				}
				// TODO Send email message
			} else if ($status == 1) {
				$Dippler->add_system_message(_("You application was submitted, please wait until your application is processed."));
				// TODO Send email message
			}
		} else {
			$Dippler->add_system_message(_("Learner could not be enrolled to the course."), "error");
		}
		forward($course->getURL('participants'));
	}

    forward();
?>