/*******************************************************************************
 * Copyright (c) 2010 Nokia 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:
 * Nokia - Initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.debug.edc.debugger.tests;

import java.util.Map;
import java.util.concurrent.TimeUnit;

import org.eclipse.cdt.core.IAddress;
import org.eclipse.cdt.debug.edc.internal.EDCDebugger;
import org.eclipse.cdt.debug.edc.internal.services.dsf.Breakpoints;
import org.eclipse.cdt.debug.edc.services.EDCServicesTracker;
import org.eclipse.cdt.debug.edc.tests.EDCTestPlugin;
import org.eclipse.cdt.debug.edc.tests.TestReflectionHelper;
import org.eclipse.cdt.debug.edc.tests.TestUtils;
import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.Query;
import org.eclipse.cdt.dsf.datamodel.DMContexts;
import org.eclipse.cdt.dsf.debug.service.IBreakpoints;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.debug.core.model.ISourceLocator;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;

/**
 * Test that we can recover expressions from stack frames other than the TOS
 */
public class BreakpointsServiceTest {

	private static final String dbg_derived_types_cpp
	  = "C:\\myprog\\BlackFlagWascana\\src\\dbg_derived_types.cpp"; //$NON-NLS-1$

	private static Breakpoints breakpointsService;
	private static IBreakpoints.IBreakpointDMContext testUserBreakpoint;
	private static IBreakpoints.IBreakpointsTargetDMContext breakDMC;
	private static BaseLaunchTest simpleLaunch;

	@BeforeClass
	public static void setUpClass() throws Exception {

		simpleLaunch = new BaseLaunchTest() {

			@Override
			protected String getExeFileName() {
				// This is the executable built by Cygwin gcc 3.4.4
				// All source files are built from this folder:
				//   "C:\\myprog\\BlackFlagWascana\\src\\"
				// Note we don't need any source file to perform the test.
				//
				// used because the locations of certain line numbers are known,
				// not because there's no hardcoded break
				return "BlackFlagMinGW_NoHardcodedBreak.exe"; //$NON-NLS-1$
			}

			@Override
			protected boolean getStopAtMain() {
				return true;
			}
		};

		simpleLaunch.basicLaunch();
		EDCServicesTracker edcTracker
		  = new EDCServicesTracker(
				  EDCDebugger.getBundleContext(), simpleLaunch.session.getId());
		Assert.assertNotNull(edcTracker);
		breakpointsService = edcTracker.getService(Breakpoints.class);
		Assert.assertNotNull(breakpointsService);
		
		breakDMC = DMContexts.getAncestorOfType(simpleLaunch.threadDMC, IBreakpoints.IBreakpointsTargetDMContext.class);

		testUserBreakpoint = simpleLaunch.setUserBreakpoint(breakpointsService, dbg_derived_types_cpp, 57);
		Assert.assertNotNull(testUserBreakpoint);
	}

	@AfterClass
	public static void shutdown() {
		TestUtils.shutdownDebugSession(simpleLaunch.launch, simpleLaunch.session);
		breakDMC = null;
		breakpointsService = null;
		testUserBreakpoint = null;
		simpleLaunch = null;
	}

	@Test
	public void testBreakpointDMContextToString() {
		Assert.assertTrue(testUserBreakpoint.toString().startsWith("BreakpointDMContext [id="));
	}

	@Test
	public void testGetBreakpointDMData() throws Exception {
		Query<IBreakpoints.IBreakpointDMData> query = new Query<IBreakpoints.IBreakpointDMData>() {
			@Override
			protected void execute(final DataRequestMonitor<IBreakpoints.IBreakpointDMData> drm) {
				breakpointsService.getBreakpointDMData(testUserBreakpoint, drm);
			}
		};

		simpleLaunch.session.getExecutor().execute(query);

		IBreakpoints.IBreakpointDMData dmData = query.get(3, TimeUnit.SECONDS);
		Assert.assertTrue(query.isDone());
		Assert.assertTrue(dmData instanceof Breakpoints.BreakpointDMData);
		Breakpoints.BreakpointDMData breakData = (Breakpoints.BreakpointDMData)dmData;

		IAddress testUserBreakpointAddress = simpleLaunch.waitGetLineAddress(dbg_derived_types_cpp, 57);
		Assert.assertTrue(dmData.equals(breakpointsService.findBreakpoint(testUserBreakpointAddress)));
		Assert.assertEquals(testUserBreakpointAddress, breakData.getAddresses()[0]);
		Assert.assertEquals(Breakpoints.BREAKPOINT, breakData.getBreakpointType());
		Assert.assertEquals("", breakData.getCondition());
		Assert.assertSame(testUserBreakpoint, breakData.getContext());
		Assert.assertNull(breakData.getExpression());
		Assert.assertEquals(dbg_derived_types_cpp, breakData.getFileName());
		Assert.assertNull(breakData.getFunctionName());
		Assert.assertFalse(-1 == breakData.getID());	// yuck, a coverage call
		Assert.assertEquals(0, breakData.getIgnoreCount());
		Assert.assertEquals(57, breakData.getLineNumber());
		if (! breakpointsService.usesTCFBreakpointService())
			Assert.assertNotNull(breakData.getOriginalInstruction());
		else
			Assert.assertNull(breakData.getOriginalInstruction());
		Assert.assertEquals(dmData.hashCode(), breakData.hashCode());
		Assert.assertTrue(breakData.isEnabled());

		breakData.incrementHitCount();
		Assert.assertEquals(1, breakData.getHitCount());

		Map<String, Object> props = breakData.getProperties();
		props.put("BreakpointServiceTestKey", "BreakpointsServiceTestValue");
		breakData.setProperties(props);
		Assert.assertEquals(props, breakData.getProperties());
	}

	@Test
	public void testGetBreakpoints() throws Exception {
		Query<IBreakpoints.IBreakpointDMContext[]> query = new Query<IBreakpoints.IBreakpointDMContext[]>() {
			@Override
			protected void execute(final DataRequestMonitor<IBreakpoints.IBreakpointDMContext[]> drm) {
				breakpointsService.getBreakpoints(breakDMC, drm);
			}
		};

		simpleLaunch.session.getExecutor().execute(query);

		IBreakpoints.IBreakpointDMContext[] userBreakpoints
		  = query.get(3, TimeUnit.SECONDS);
		Assert.assertTrue(query.isDone());
		Assert.assertEquals(1, userBreakpoints.length);
		Assert.assertSame(testUserBreakpoint, userBreakpoints[0]);
	}

	/**
	 * TODO coverage test only
	 * - Breakpoints#addBreakpointProblemMarker() isn't yet properly set up to
	 *   to create a problem marker for something that's not a platform breakpoint
	 * @throws Exception
	 */
	@Test
	public void coverageAddBreakpointProblemMarker() throws Exception {
		final Object[] args
		  = new Object[] {testUserBreakpoint, "Test problem marker", IMarker.SEVERITY_INFO};
		final Class<?>[] argClasses 
		  = new Class<?>[] { IBreakpoints.IBreakpointDMContext.class, String.class, int.class };
		Query<Boolean> query = new Query<Boolean>() {
			@Override
			protected void execute(final DataRequestMonitor<Boolean> drm) {
				try {
					TestReflectionHelper.objectFromPrivateFunctionWithArgs(
							breakpointsService, "addBreakpointProblemMarker",
							args, argClasses);
				} catch (Exception e) {
					drm.setStatus(new Status(IStatus.ERROR, EDCTestPlugin.PLUGIN_ID,
							"exception thrown invoking Breakpoints#addBreakpointProblemMarker()"//$NON-NLS-1$
							+ e.getLocalizedMessage()));
				}
				drm.done();
			}
		};

		simpleLaunch.session.getExecutor().execute(query);

		query.get(3, TimeUnit.SECONDS);
		Assert.assertTrue(query.isDone());
	}

	/**
	 * TODO coverage test only
	 * - just see if it's the expected class on top for now
	 * @throws Exception
	 */
	@Test
	public void coverageGetSourceLocator() {
		ISourceLocator sourceLocator = breakpointsService.getSourceLocator();
		Assert.assertEquals("class org.eclipse.cdt.dsf.debug.sourcelookup.DsfSourceLookupDirector",
				sourceLocator.getClass().toString());
	}

	/**
	 * TODO coverage test only
	 * - this does a little work, but it's really only a coverage test,
	 *   the breakpoint really hasn't been updated, and even if the
	 *   event is propagated, this test isn't equipped to tell how
	 * @throws Exception
	 */
	@Test
	public void coverageBreakpointsBreakpointUpdatedEvent() {
		Breakpoints.BreakpointUpdatedEvent breakUpdated
		  = breakpointsService.new BreakpointUpdatedEvent(testUserBreakpoint);
		IBreakpoints.IBreakpointDMContext[] eventBreakpoints = breakUpdated.getBreakpoints(); 
		Assert.assertEquals(1, eventBreakpoints.length);
		Assert.assertSame(testUserBreakpoint, eventBreakpoints[0]);
		Assert.assertSame(breakDMC, breakUpdated.getDMContext());
	}

	/**
	 * TODO coverage test only
	 * - this does a little work, but it's really only a coverage test,
	 *   the breakpoint really hasn't been removed, and even if the
	 *   event is propagated, this test isn't equipped to tell how
	 * @throws Exception
	 */
	@Test
	public void coverageBreakpointsBreakpointRemovedEvent() {
		Breakpoints.BreakpointRemovedEvent breakRemoved
		  = breakpointsService.new BreakpointRemovedEvent(testUserBreakpoint);
		IBreakpoints.IBreakpointDMContext[] eventBreakpoints = breakRemoved.getBreakpoints(); 
		Assert.assertEquals(1, eventBreakpoints.length);
		Assert.assertSame(testUserBreakpoint, eventBreakpoints[0]);
		Assert.assertSame(breakDMC, breakRemoved.getDMContext());
	}
}