package org.eparapher.rcp;

import java.net.URL;

import org.apache.log4j.Logger;
import org.apache.log4j.PropertyConfigurator;
import org.eclipse.core.runtime.Platform;
import org.eclipse.equinox.app.IApplication;
import org.eclipse.equinox.app.IApplicationContext;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
import org.eparapher.rcp.tools.RCPSingleton;

/**
 * This class controls all aspects of the application's execution
 */
public class Application implements IApplication {
	
	public static final String PLUGIN_ID = "eParapher";
	
	private static Logger log = Logger.getLogger(Activator.class);
	
	/* (non-Javadoc)
	 * @see org.eclipse.equinox.app.IApplication#start(org.eclipse.equinox.app.IApplicationContext)
	 */
	public Object start(IApplicationContext context) {
		
		// Setup a simple configuration that logs on the console.
		URL log4JConfig= Platform.getBundle( Application.PLUGIN_ID ).getResource( "log4j.properties" );
		//System.out.println(log4JConfig);
        PropertyConfigurator.configure( log4JConfig );
        log.info( "Starting eParapher RCP Client." );        

		Display display = PlatformUI.createDisplay();
		try {
	        ApplicationWorkbenchAdvisor advisor = new ApplicationWorkbenchAdvisor();
	        //Manage single RCP instance and command line arguments of eParapher
	        RCPSingleton rcps = new RCPSingleton(context,advisor);
	        if (rcps.isAlreadystarted()) {
	        	log.info("Shutting down eParapher as it's already started.");
	        	return IApplication.EXIT_OK;
	        }
	        
			int returnCode = PlatformUI.createAndRunWorkbench(display, new ApplicationWorkbenchAdvisor());
			if (returnCode == PlatformUI.RETURN_RESTART) {
				return IApplication.EXIT_RESTART;
			}
			return IApplication.EXIT_OK;
		} finally {
			display.dispose();
		}
	}

	/* (non-Javadoc)
	 * @see org.eclipse.equinox.app.IApplication#stop()
	 */
	public void stop() {
		final IWorkbench workbench = PlatformUI.getWorkbench();
		if (workbench == null)
			return;
		final Display display = workbench.getDisplay();
		display.syncExec(new Runnable() {
			public void run() {
				if (!display.isDisposed())
					workbench.close();
			}
		});
	}
}