/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.update.tests.configurations;
import java.io.File;
import java.net.URL;

import org.eclipse.update.configuration.*;
import org.eclipse.update.configurator.*;
import org.eclipse.update.core.*;
import org.eclipse.update.internal.core.*;
import org.eclipse.update.internal.model.ConfiguredSiteModel;
import org.eclipse.update.tests.UpdateManagerTestCase;

public class TestRevert extends UpdateManagerTestCase {
	
	/**
	 * Test the getFeatures()
	 */
	public TestRevert(String arg0) {
		super(arg0);
	}
	
	public void testSimpleRevertInstall() throws Exception {

		// cleanup
		LocalSite siteLocal = ((LocalSite)SiteManager.getLocalSite());
		File localFile = new File(siteLocal.getLocationURL().getFile());
		UpdateManagerUtils.removeFromFileSystem(localFile);		
		InternalSiteManager.localSite=null;		

		ILocalSite site = SiteManager.getLocalSite();
		ISite remoteSite = SiteManager.getSite(SOURCE_HTTP_SITE,null);
		IFeatureReference featureRef = remoteSite.getFeatureReferences()[0];
		IFeatureReference featureRef2 = remoteSite.getFeatureReferences()[1];
		IFeature feature = featureRef.getFeature(null);
		
		// old config, no features installed
		IInstallConfiguration old = site.getCurrentConfiguration();
		ConfigurationPolicy excludepolicy = new ConfigurationPolicy();
		excludepolicy.setPolicy(IPlatformConfiguration.ISitePolicy.USER_EXCLUDE);
		IConfiguredSite oldConfigSite = old.getConfiguredSites()[0];
		excludepolicy.setConfiguredSiteModel((ConfiguredSiteModel)oldConfigSite);		
		((ConfiguredSiteModel)oldConfigSite).setConfigurationPolicyModel(excludepolicy);
		
		// install one feature
		IInstallConfiguration newConfig = site.cloneCurrentConfiguration();
		IConfiguredSite configSite = newConfig.getConfiguredSites()[0];
		if (!configSite.getSite().equals(oldConfigSite.getSite())) fail("Config sites are not equals");
		site.addConfiguration(newConfig);	
		
		((ConfiguredSite)configSite).setUpdatable(true);			
		IFeatureReference installedFeature = configSite.install(feature,null,null);
		site.save();

		// unconfigure it
		configSite.unconfigure(installedFeature.getFeature(null));

		// install another feature
		IFeature feature2 = featureRef2.getFeature(null);
		IInstallConfiguration newConfig2 = site.cloneCurrentConfiguration();
		IConfiguredSite anotherConfigSite = newConfig2.getConfiguredSites()[0];
		if (!anotherConfigSite.getSite().equals(oldConfigSite.getSite())) fail("Config sites are not equals");		
		site.addConfiguration(newConfig2);		
		anotherConfigSite.install(feature2,null,null);
		site.save();

		// revert to old state where no feature where configured
		site.revertTo(old,null,null);
		site.save();
		
		// check
		String time = ""+site.getCurrentConfiguration().getCreationDate().getTime();
		File file = new File(((LocalSite)SiteManager.getLocalSite()).getLocationURL().getFile());
		assertTrue("new configuration does not exist", file.exists());
		
		
		//find configured site
		IConfiguredSite newConfigSite = null;
		IConfiguredSite[] sites = site.getCurrentConfiguration().getConfiguredSites();
		for (int i = 0; i < sites.length; i++) {
			if (sites[i].getSite().equals(oldConfigSite.getSite())){
				 newConfigSite = sites[i];
				 break;
			}
		}
		if (newConfigSite==null) fail("Cannot find configuration site");

		int oldNumber = oldConfigSite.getConfiguredFeatures().length;
		int newNumber = newConfigSite.getConfiguredFeatures().length;
		
		//
		IFeatureReference[] configFeatures = newConfigSite.getConfiguredFeatures();
		for (int i = 0; i < configFeatures.length; i++) {
			System.out.println(configFeatures[i]);
		}		
		assertTrue("Wrong number of configured features old:"+oldNumber+" new:"+newNumber,oldNumber==newNumber);
		
		// test only 2 install config in local site
		int newNumberUnconfiguredFeatures = ((ConfiguredSite)newConfigSite).getConfigurationPolicy().getUnconfiguredFeatures().length;
		int oldNumberUnconfiguredFeatures = ((ConfiguredSite)oldConfigSite).getConfigurationPolicy().getUnconfiguredFeatures().length;		
		assertEquals("wrong number of unconfigured features",oldNumberUnconfiguredFeatures+2,newNumberUnconfiguredFeatures);
		
		// cleanup
		localFile = new File(siteLocal.getLocationURL().getFile());
		UpdateManagerUtils.removeFromFileSystem(localFile);		
		localFile = new File(((LocalSite)SiteManager.getLocalSite()).getLocationURL().getFile());
		UpdateManagerUtils.removeFromFileSystem(localFile);				
		UpdateManagerUtils.removeFromFileSystem(file);	
		time = ""+newConfig.getCreationDate().getTime();
		file = new File(new URL(((LocalSite)SiteManager.getLocalSite()).getLocationURL(),"DefaultConfig"+time+".xml").getFile());	
		UpdateManagerUtils.removeFromFileSystem(file);	
		time = ""+newConfig2.getCreationDate().getTime();
		file = new File(new URL(((LocalSite)SiteManager.getLocalSite()).getLocationURL(),"DefaultConfig"+time+".xml").getFile());	
		UpdateManagerUtils.removeFromFileSystem(file);	
	}

}