/*******************************************************************************
 * Copyright (c) 2006, 2015 Wind River Systems 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:
 *     Wind River Systems - initial API and implementation
 *     Ericsson 		  - Modified for additional features in DSF Reference implementation
 *     Ericsson           - New version for 7_0
 *     Vladimir Prus (CodeSourcery) - Support for -data-read-memory-bytes (bug 322658)
 *     Jens Elmenthaler (Verigy) - Added Full GDB pretty-printing support (bug 302121)
 *     Marc Khouzam (Ericsson) - Call new FinalLaunchSequence_7_0 (Bug 365471)
 *     Mikhail Khodjaiants (Mentor Graphics) - Refactor common code in GDBControl* classes (bug 372795)
 *******************************************************************************/
package org.eclipse.cdt.dsf.gdb.service.command;

import java.util.Map;

import org.eclipse.cdt.dsf.concurrent.DataRequestMonitor;
import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
import org.eclipse.cdt.dsf.concurrent.RequestMonitorWithProgress;
import org.eclipse.cdt.dsf.concurrent.Sequence;
import org.eclipse.cdt.dsf.debug.service.command.ICommandControlService;
import org.eclipse.cdt.dsf.gdb.launching.FinalLaunchSequence_7_0;
import org.eclipse.cdt.dsf.gdb.service.IGDBTraceControl.ITraceRecordSelectedChangedDMEvent;
import org.eclipse.cdt.dsf.mi.service.command.AbstractMIControl;
import org.eclipse.cdt.dsf.mi.service.command.CLIEventProcessor_7_0;
import org.eclipse.cdt.dsf.mi.service.command.CommandFactory;
import org.eclipse.cdt.dsf.mi.service.command.IEventProcessor;
import org.eclipse.cdt.dsf.mi.service.command.MIRunControlEventProcessor_7_0;
import org.eclipse.cdt.dsf.mi.service.command.output.MIInfo;
import org.eclipse.cdt.dsf.mi.service.command.output.MIListFeaturesInfo;
import org.eclipse.cdt.dsf.service.DsfServiceEventHandler;
import org.eclipse.cdt.dsf.service.DsfSession;
import org.eclipse.debug.core.ILaunchConfiguration;

/**
 * GDB Debugger control implementation.  This implementation extends the
 * base MI control implementation to provide the GDB-specific debugger
 * features.  This includes:<br>
 * - CLI console support,<br>
 * - inferior process status tracking.<br>
 */
public class GDBControl_7_0 extends GDBControl {

	/**
	 * @since 3.0
	 */
	public GDBControl_7_0(DsfSession session, ILaunchConfiguration config, CommandFactory factory) {
		super(session, true, config, factory);
	}

	@Override
	protected Sequence getStartupSequence(RequestMonitor requestMonitor) {
		final Sequence.Step[] initializeSteps = new Sequence.Step[] {
				new CommandMonitoringStep(GDBControl.InitializationShutdownStep.Direction.INITIALIZING),
				new CommandProcessorsStep(GDBControl.InitializationShutdownStep.Direction.INITIALIZING),
				new CommandTimeoutStep(GDBControl.InitializationShutdownStep.Direction.INITIALIZING),
				new ListFeaturesStep(GDBControl.InitializationShutdownStep.Direction.INITIALIZING),
				new RegisterStep(GDBControl.InitializationShutdownStep.Direction.INITIALIZING), };

		return new Sequence(getExecutor(), requestMonitor) {
			@Override
			public Step[] getSteps() {
				return initializeSteps;
			}
		};
	}

	@Override
	protected Sequence getShutdownSequence(RequestMonitor requestMonitor) {
		final Sequence.Step[] shutdownSteps = new Sequence.Step[] {
				new RegisterStep(GDBControl.InitializationShutdownStep.Direction.SHUTTING_DOWN),
				new ListFeaturesStep(GDBControl.InitializationShutdownStep.Direction.SHUTTING_DOWN),
				new CommandTimeoutStep(GDBControl.InitializationShutdownStep.Direction.SHUTTING_DOWN),
				new CommandProcessorsStep(GDBControl.InitializationShutdownStep.Direction.SHUTTING_DOWN),
				new CommandMonitoringStep(GDBControl.InitializationShutdownStep.Direction.SHUTTING_DOWN), };
		return new Sequence(getExecutor(), requestMonitor) {
			@Override
			public Step[] getSteps() {
				return shutdownSteps;
			}
		};
	}

	@Override
	protected IEventProcessor createCLIEventProcessor(ICommandControlService connection,
			ICommandControlDMContext controlDmc) {
		return new CLIEventProcessor_7_0(connection, controlDmc);
	}

	@Override
	protected IEventProcessor createMIRunControlEventProcessor(AbstractMIControl connection,
			ICommandControlDMContext controlDmc) {
		return new MIRunControlEventProcessor_7_0(connection, controlDmc);
	}

	/** @since 5.1 */
	protected void doListFeatures(final RequestMonitor requestMonitor) {
		queueCommand(getCommandFactory().createMIListFeatures(getContext()),
				new DataRequestMonitor<MIListFeaturesInfo>(getExecutor(), requestMonitor) {
					@Override
					public void handleSuccess() {
						setFeatures(getData().getFeatures());
						super.handleSuccess();
					}
				});
	}

	/** @since 5.1 */
	protected void undoListFeatures(RequestMonitor requestMonitor) {
		requestMonitor.done();
	}

	@Override
	protected Sequence getCompleteInitializationSequence(Map<String, Object> attributes,
			RequestMonitorWithProgress rm) {
		return new FinalLaunchSequence_7_0(getSession(), attributes, rm);
	}

	@Override
	@DsfServiceEventHandler
	public void eventDispatched(ICommandControlShutdownDMEvent e) {
		// Handle our "GDB Exited" event and stop processing commands.
		stopCommandProcessing();
	}

	/** @since 3.0 */
	@DsfServiceEventHandler
	public void eventDispatched(ITraceRecordSelectedChangedDMEvent e) {
	}

	/** @since 4.0 */
	protected class ListFeaturesStep extends InitializationShutdownStep {

		ListFeaturesStep(Direction direction) {
			super(direction);
		}

		@Override
		protected void initialize(final RequestMonitor requestMonitor) {
			doListFeatures(requestMonitor);
		}

		@Override
		protected void shutdown(RequestMonitor requestMonitor) {
			undoListFeatures(requestMonitor);
		}
	}

	/**
	 * @since 4.0
	 */
	@Override
	public void enablePrettyPrintingForMIVariableObjects(RequestMonitor rm) {
		queueCommand(getCommandFactory().createMIEnablePrettyPrinting(getContext()),
				new DataRequestMonitor<MIInfo>(getExecutor(), rm));
	}

	/**
	 * @since 4.0
	 */
	@Override
	public void setPrintPythonErrors(boolean enabled, RequestMonitor rm) {

		String subCommand = "set python print-stack " + (enabled ? "on" : "off"); //$NON-NLS-1$//$NON-NLS-2$//$NON-NLS-3$

		queueCommand(getCommandFactory().createCLIMaintenance(getContext(), subCommand),
				new DataRequestMonitor<MIInfo>(getExecutor(), rm));
	}
}