/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.
*/

package org.olat.course.run.environment;

import org.olat.core.commons.modules.bc.vfs.OlatRootFolderImpl;
import org.olat.core.util.vfs.VFSContainer;
import org.olat.course.Structure;
import org.olat.course.assessment.AssessmentManager;
import org.olat.course.auditing.UserNodeAuditManager;
import org.olat.course.config.CourseConfig;
import org.olat.course.groupsandrights.CourseGroupManager;
import org.olat.course.properties.CoursePropertyManager;

/**
 * Initial Date:  May 5, 2004
 *
 * @author Felix Jost<br>
 * 
 * Comment:  
 * contains the LearningGroupManager, the SysEnvironment, and the Properties for the run of a course
 * NOT FOR one user, but shared for all using this course
 */
public interface CourseEnvironment {
	
	/**
	 * Get the current time in milli seconds
	 * @return The current time in millis
	 */
	public long getCurrentTimeMillis();
	
	/**
	 * if true then all ConditionInterpreter functions should return true/1 immediately without e.g. accessing the database. 
	 * We use this as validating of the syntax before saving it, so that there are only grammatically correct
	 * expressions which are saved and therefore are evaluated in the run mode later.
	 * @return true if no op mode
	 */
	public boolean isNoOpMode();

	/**
	 * Get the course group management environment
	 * @return The course group management
	 */
	public CourseGroupManager getCourseGroupManager();
	

	/**
	 * Get the resourceable id of this course. This is the repository entry id.
	 * @return The course resourceable id
	 */
	public Long getCourseResourceableId();
	

	/**
	 * Get a course property manager for this course
	 * @return The course property manager
	 */
	public CoursePropertyManager getCoursePropertyManager();
	
	/**
	 * Get the assessment manager for this course
	 * @return The course assessment manager
	 */
	public AssessmentManager getAssessmentManager();

	/**
	 * Get the audit manager for this course
	 * @return The course audit manager
	 */
	public UserNodeAuditManager getAuditManager();

	/**
	 * Get the course folder path. This is the same as the path you would get 
	 * from course.getCourseFolderPath()
	 * @return The course folder path for this course
	 */
	public VFSContainer getCourseFolderContainer();
	
	/**
	 * Return the course base path.
	 * @return the course base path
	 */
	public OlatRootFolderImpl getCourseBaseContainer();
	
	/**
	 * Return the course run structure
	 * @return the runstructure
	 */
	public Structure getRunStructure();
	
	
	/**
	 * @return the courseTitle
	 */
	public String getCourseTitle();
	
	/**
	 * 
	 * @return course config of this course
	 */
	public CourseConfig getCourseConfig();
		
}
