package org.openslx.taskmanager.tasks;

import java.util.Map;

import org.openslx.satserver.util.Constants;
import org.openslx.taskmanager.api.SystemCommandTask;

import com.google.gson.annotations.Expose;

public class ScpSnapshot extends SystemCommandTask
{
	@Expose
	private String editId = null;
	@Expose
	private String clientIp = null;
	@Expose
	private String lectureId = null;

	private final Output status = new Output();


	@Override
	protected boolean initTask()
	{
		this.setStatusObject( this.status );
		if ( this.editId == null )
			this.editId = "";
		if ( this.clientIp == null )
			this.clientIp = "";
		if ( this.lectureId == null )
			this.lectureId = "";

		return true;
	}

	@Override
	protected String[] initCommandLine()
	{
		return new String[] {
				"/usr/bin/sudo",
				"-n",
				"-u", "root",
				Constants.BASEDIR + "/scripts/scp-snapshot"
		};
	}

	@Override
	protected void initEnvironment( Map<String, String> environment )
	{
		environment.put( "TM_EDIT_ID", this.editId );
		environment.put( "TM_CLIENT_IP", this.clientIp );
		environment.put( "TM_LECTURE_ID", this.lectureId);
	}

	@Override
	protected boolean processEnded( int exitCode )
	{
		return exitCode == 0;
	}

	@Override
	protected void processStdOut( String line )
	{
		status.addMessage( line );
	}

	@Override
	protected void processStdErr( String line )
	{
		status.addMessage( line );
	}

	/**
	 * Output - contains additional status data of this task
	 */
	class Output
	{
		private String messages = null;

		private void addMessage( String str )
		{
			if ( messages == null ) {
				messages = str;
			} else {
				messages += "\n" + str;
			}
		}
	}

}