/*******************************************************************************
 * Copyright (c) 2010 Intel Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * Intel - initial API and implementation
 *******************************************************************************/
package org.yocto.sdk.remotetools.actions;

import java.io.File;
import java.lang.reflect.InvocationTargetException;
import java.text.SimpleDateFormat;
import java.util.Calendar;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubProgressMonitor;
import org.eclipse.rse.core.model.IHost;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.yocto.sdk.remotetools.views.BaseFileView;

public class PowertopModel extends BaseModel {
	
	private static final String REMOTE_EXEC = "/tmp/yocto_tool.sh";
	private static final String LOCAL_SCRIPT = "resources/yocto_tool.sh";

	private static final String REMOTE_FILE_PREFIX = "/tmp/yocto-powertop-";
	private static final String LOCAL_FILE_SUFFIX = ".local";

	private static final String TASK_NAME = "powertop command";

	private Float time;
	private boolean showpid;
	Display display;
	
	public PowertopModel(IHost host, Float time,boolean showpid,Display display) {
		super(host, TASK_NAME, LOCAL_SCRIPT, REMOTE_EXEC);
		this.time=time;
		this.showpid=showpid;
		this.display=display;
	}

	@Override
	public void postProcess(IProgressMonitor monitor)
			throws InvocationTargetException, InterruptedException {
		try {
			new File(localFile).delete();
		}catch (Exception e) {
			
		}
	}
	
	private void generateData(IProgressMonitor monitor) throws Exception {
		String currentDate = new SimpleDateFormat("yyyyMMddHHmmssSSS").format(Calendar.getInstance().getTime()).toString();
		remoteFile = new String(REMOTE_FILE_PREFIX + currentDate);
		localFile = new String(remoteFile + LOCAL_FILE_SUFFIX);
		
		String args = "start -l " + remoteFile + " powertop --debug --time " + time.toString();
		if(showpid)
			args += " -p";
		runRemoteShellExec(monitor, args, true);
	}

	@Override
	public void process(IProgressMonitor monitor)
			throws InvocationTargetException, InterruptedException {
		
		monitor.beginTask("Running powertop", 100);		
		try {
			//running powertop
			monitor.subTask("Generating powertop data file remotely");
			generateData(new SubProgressMonitor(monitor,30));
			//download datafile
			monitor.subTask("Downloading powertop data file");
			getDataFile(new SubProgressMonitor(monitor,30));
			//show it in the powertop view
			display.syncExec(new Runnable() {
				public void run() {
					BaseFileView  view;
					IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
					try {
						view=(BaseFileView) page.showView("org.yocto.sdk.remotetools.views.PowerTopView");
					}catch (PartInitException e) {
						e.printStackTrace();
						return;
					}
					view.setInput(localFile);
					page.bringToTop(view);
				}
			});
			
		}catch (InterruptedException e){
			throw e;
		}catch (InvocationTargetException e) {
			throw e;
		}catch (Exception e){
			throw new InvocationTargetException(e, e.getMessage());
		}finally {
			monitor.done();
		}

	}

}