/*******************************************************************************
 * Copyright (c) 2006, 2019 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ua.tests.intro.performance;

import org.eclipse.swt.widgets.Display;
import org.eclipse.test.performance.Dimension;
import org.eclipse.test.performance.PerformanceTestCaseJunit5;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.internal.intro.impl.model.loader.ExtensionPointManager;
import org.eclipse.ui.intro.IIntroManager;
import org.eclipse.ui.intro.IIntroPart;
import org.eclipse.ui.intro.config.CustomizableIntroPart;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInfo;
import org.osgi.framework.FrameworkUtil;

public class OpenIntroTest extends PerformanceTestCaseJunit5 {

	@BeforeEach
	@Override
	public void setUp(TestInfo testInfo) throws Exception {
		super.setUp(testInfo);
		closeIntro();
		// test extensions filter by this system property
		System.setProperty("org.eclipse.ua.tests.property.isTesting", "true"); //$NON-NLS-1$ //$NON-NLS-2$
		ExtensionPointManager.getInst().setExtensionFilter(FrameworkUtil.getBundle(getClass()).getSymbolicName());
	}

	@AfterEach
	@Override
	public void tearDown() throws Exception {
		super.tearDown();
		closeIntro();
		// test extensions filter by this system property
		System.setProperty("org.eclipse.ua.tests.property.isTesting", "false"); //$NON-NLS-1$ //$NON-NLS-2$
		ExtensionPointManager.getInst().setExtensionFilter(null);
	}

	@Test
	public void testOpenIntro() throws Exception {
		tagAsSummary("Open welcome", Dimension.ELAPSED_PROCESS);

		// warm-up
		for (int i=0;i<3;++i) {
			openIntro();
			closeIntro();
		}

		// run the tests
		for (int i=0;i<50;++i) {
			startMeasuring();
			openIntro();
			stopMeasuring();
			closeIntro();
		}

		commitMeasurements();
		assertPerformance();
	}

	public static void closeIntro() throws Exception {
		IIntroManager manager = PlatformUI.getWorkbench().getIntroManager();
		IIntroPart part = manager.getIntro();
		if (part != null) {
			manager.closeIntro(part);
		}
		ExtensionPointManager.getInst().clear();
		flush();
	}

	private static void openIntro() throws Exception {
		IWorkbench workbench = PlatformUI.getWorkbench();
		IIntroManager manager = workbench.getIntroManager();
		CustomizableIntroPart introPart = (CustomizableIntroPart)manager.showIntro(workbench.getActiveWorkbenchWindow(), false);

		Display display = Display.getDefault();
		while (!introPart.internal_isFinishedLoading()) {
			if (!display.readAndDispatch()) {
				display.sleep();
			}
		}
		flush();
	}

	private static void flush() {
		Display display = Display.getCurrent();
		while (display.readAndDispatch()) {
		}
	}
}
