/*

* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

package com.nokia.cdt.internal.debug.launch.newwizard;

import java.util.ArrayList;

import java.util.Collection;

import java.util.List;

import org.eclipse.cdt.debug.core.ICDTLaunchConfigurationConstants;

import org.eclipse.core.resources.IProject;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.core.runtime.IPath;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Path;

import org.eclipse.core.runtime.Platform;

import org.eclipse.core.runtime.Status;

import org.eclipse.core.runtime.preferences.InstanceScope;

import org.eclipse.debug.core.DebugPlugin;

import org.eclipse.debug.core.ILaunchConfigurationType;

import org.eclipse.debug.core.ILaunchConfigurationWorkingCopy;

import org.eclipse.debug.core.ILaunchManager;

import org.eclipse.debug.ui.IDebugUIConstants;

import org.osgi.framework.Bundle;

import org.osgi.service.prefs.Preferences;

import com.freescale.cdt.debug.cw.core.RemoteConnectionsTRKHelper;

import com.nokia.carbide.remoteconnections.RemoteConnectionsActivator;

import com.nokia.carbide.remoteconnections.interfaces.IConnectedService;

import com.nokia.carbide.remoteconnections.interfaces.IConnection;

import com.nokia.carbide.remoteconnections.interfaces.IService;

import com.nokia.carbide.remoteconnections.internal.api.IConnectedService2;

import com.nokia.carbide.remoteconnections.internal.registry.Registry;

import com.nokia.cdt.debug.cw.symbian.SettingsData;

import com.nokia.cdt.internal.debug.launch.wizard.LaunchOptions;

import com.nokia.cpp.internal.api.utils.core.TextUtils;

import cwdbg.PreferenceConstants;

/**

 * Data manipulated by the launch wizard and its dialogs.

 */

@SuppressWarnings("restriction")

public class LaunchWizardData extends LaunchOptions {

	/**

	 * This plugin is only shipped in internal layouts and is used as a fallback

	 * to determine whether Sys TRK is more likely to be available than App TRK 

	 * if we cannot otherwise tell.

	 */

	private static final String COM_NOKIA_CARBIDE_SYMSEE_TRK_SUPPORT = "com.nokia.carbide.symsee.trk.support";

	public interface IPathValidator {

		/**

		 * @param path IPath

		 * @return Error string or <code>null</code> if is valid

		 */

		String isValidPath(IPath path);

	}

	private final IService service;

	// overall target

	public static class LaunchType {

		private final String launchId;

		public LaunchType(String launchId) {

			this.launchId = launchId;

		}

		public boolean isApplicable(LaunchWizardData data) {

			return true;

		}

		public String getLaunchId() {

			return launchId;

		}

	};

	public final static LaunchType APP_TRK = new LaunchType(null);

	public final static LaunchType SYS_TRK = new LaunchType(null);

	public final static LaunchType ATTACH_TO_PROCESS_LAUNCH = new LaunchType(null);

	public final static LaunchType PLATSIM_RUN_MODE = new LaunchType(null);

	public final static LaunchType PLATSIM_STOP_MODE = new LaunchType(null);

	// settings made in Debug/Run Process section

	enum EExeSelection {

		USE_PROJECT_EXECUTABLE,

		USE_REMOTE_EXECUTABLE,

		ATTACH_TO_PROCESS,

	};

	private EExeSelection exeSelection;

	private IPath exeSelectionPath = Path.EMPTY;

	private EBuildBeforeLaunchOption buildBeforeLaunch;

	private boolean installPackage;

	private String sisPath;

	private IConnection connection;

	private List<IPath> launchableExes;

	// settings made in the Other Settings section

	enum EBuildBeforeLaunchOption {

		ALWAYS,

		NEVER,

		USE_WORKSPACE_SETTING,

	}

	public LaunchWizardData(LaunchOptions launchOptions, IService trkService) {

		this.mmps = launchOptions.mmps;

		this.exes = launchOptions.exes;

		this.defaultExecutable = launchOptions.defaultExecutable;

		this.project = launchOptions.project;

		this.configurationName = launchOptions.configurationName;

		this.isEmulation = launchOptions.isEmulation;

		this.emulatorOnly = launchOptions.emulatorOnly;

		this.mode = launchOptions.mode;

		this.service = trkService;

	}

	/**

	 * @return the service

	 */

	public IService getService() {

		return service;

	}

	/**

	 * @return

	 */

	public boolean isDebug() {

		return mode.equals(ILaunchManager.DEBUG_MODE);

	}

	public String getModeLabel() {

		if (mode.equals(ILaunchManager.RUN_MODE))

			return Messages.getString("LaunchWizardData.RunModeLabel"); //$NON-NLS-1$

		else if (mode.equals(ILaunchManager.DEBUG_MODE))

			return Messages.getString("LaunchWizardData.DebugModeLabel"); //$NON-NLS-1$

		else

			return TextUtils.titleCase(mode);

	}

	/**

	 * Validate the detected and/or configured data

	 * @return IStatus, never <code>null</code>

	 */

	public IStatus validate() {

		return Status.OK_STATUS;

	}

	/**

	 * @return 

	 * @return

	 */

	public List<IPath> getExes() {

		return exes;

	}

	public List<IPath> getLaunchableExes() {

		if (launchableExes == null) {

			launchableExes = new ArrayList<IPath>();

			for (IPath path : exes) {

				if ("exe".equalsIgnoreCase(path.getFileExtension()))

					launchableExes.add(path);

			}

		}

		return launchableExes;

	}

	/**

	 * @return the defaultExecutable

	 */

	public IPath getDefaultExecutable() {

		return defaultExecutable;

	}

	/**

	 * Set the executable selection mode

	 * @param selection

	 */

	public void setExeSelection(EExeSelection selection) {

		this.exeSelection = selection;

	}

	/**

	 * Set the path for the exe

	 * @param path or <code>null</code>

	 */

	public void setExeSelectionPath(IPath path) {

		this.exeSelectionPath = path != null ? path : Path.EMPTY;

	}

	/**

	 * @return

	 */

	public EExeSelection getExeSelection() {

		return exeSelection;

	}

	public IPath getExeSelectionPath() {

		return exeSelectionPath;

	}

	public String getConnectionName() {

		IConnection connection = getConnection();

		if (connection == null)

			return null;

		return connection.getDisplayName();

	}

	public void setBuildBeforeLaunchOption(

			EBuildBeforeLaunchOption setting) {

		this.buildBeforeLaunch = setting;

	}

	public EBuildBeforeLaunchOption getBuildBeforeLaunch() {

		return buildBeforeLaunch;

	}

	/** Get current workspace setting */

	public boolean isWorkspaceBuildBeforeLaunch() {

		// here's how to get the prefs from a plugin's #getPreferenceStore() without violating access

		String prefId = IDebugUIConstants.PREF_BUILD_BEFORE_LAUNCH;

		int idx = prefId.lastIndexOf('.');

		String plugin = prefId.substring(0, idx);

		Preferences node = Platform.getPreferencesService().getRootNode().node(InstanceScope.SCOPE).node(plugin);

		return node.getBoolean(prefId, true);

	}

	/** Get actual launch-time setting */

	public boolean isCurrentBuildBeforeLaunch() {

		if (buildBeforeLaunch != EBuildBeforeLaunchOption.USE_WORKSPACE_SETTING)

			return buildBeforeLaunch == EBuildBeforeLaunchOption.ALWAYS;

		return isWorkspaceBuildBeforeLaunch();

	}

	/**

	 * @param selection

	 */

	public void setInstallPackage(boolean selection) {

		this.installPackage = selection;

	}

	/**

	 * @return the installPackage

	 */

	public boolean isInstallPackage() {

		return installPackage;

	}

	/**

	 * @return

	 */

	public IProject getProject() {

		return project;

	}

	/**

	 * @param sisPath

	 */

	public void setSisPath(String sisPath) {

		this.sisPath = sisPath;

	}

	/**

	 * @return

	 */

	public String getSisPath() {

		return sisPath;

	}

	/**

	 * Copy the data, for use by a transient dialog.

	 * @return new copy of data

	 */

	public LaunchWizardData copy() {

		LaunchOptions launchOptions = new LaunchOptions();

		launchOptions.mmps = mmps;

		launchOptions.exes = exes;

		launchOptions.defaultExecutable = defaultExecutable;

		launchOptions.project = project;

		launchOptions.configurationName = configurationName;

		launchOptions.isEmulation = isEmulation;

		launchOptions.emulatorOnly = emulatorOnly;

		launchOptions.mode = mode;

		LaunchWizardData d = new LaunchWizardData(launchOptions, service);

		d.exeSelection = exeSelection;

		d.exeSelectionPath = exeSelectionPath;

		d.buildBeforeLaunch = buildBeforeLaunch;

		d.installPackage = installPackage;

		d.sisPath = sisPath;

		d.connection = connection;

		return d;

	}

	/**

	 * Apply the given data to the receiver (when a transient dialog is accepted) 

	 * @param dialogData

	 */

	public void apply(LaunchWizardData dialogData) {

		exeSelection = dialogData.exeSelection;

		exeSelectionPath = dialogData.exeSelectionPath;

		buildBeforeLaunch = dialogData.buildBeforeLaunch;

		installPackage = dialogData.installPackage;

		sisPath = dialogData.sisPath;

		connection = dialogData.connection;

	}

	/**

	 * @return

	 */

	public boolean requiresInstallPackage() {

		return isSysTRKConnection() == Boolean.FALSE /* but not if unknown */ || installPackage;

	}

	public void setConnection(IConnection connection) {

		this.connection = connection;

	}

	public IConnection getConnection() {

		return connection;

	}

	public ILaunchConfigurationWorkingCopy createConfiguration() throws CoreException {

		String launchTypeId = getApplicableLaunchTypeId();

		ILaunchConfigurationType launchType = DebugPlugin.getDefault().getLaunchManager().getLaunchConfigurationType(launchTypeId);

		ILaunchConfigurationWorkingCopy config = launchType.newInstance(null, configurationName);

		initializeConfigSettings(launchTypeId, config);

		return config;

	}

	private void initializeConfigSettings(String launchTypeId, ILaunchConfigurationWorkingCopy config) {

		IPath exePath = getExePath();

		IPath mmpPath = getMmpPath(exePath);

		if (launchTypeId.equals(SettingsData.APP_TRK_LAUNCH_TYPE_ID)) {

    		SettingsData.setDefaults(config, SettingsData.LaunchConfig_AppTRK, project, mmpPath, exePath);

		}

		else if (launchTypeId.equals(SettingsData.SYS_TRK_LAUNCH_TYPE_ID)) {

    		SettingsData.setDefaults(config, SettingsData.LaunchConfig_SysTRK, project, mmpPath, exePath);

		}

		else if (launchTypeId.equals(SettingsData.ATTACH_LAUNCH_TYPE_ID)) {

    		SettingsData.setDefaults(config, SettingsData.LaunchConfig_AppTRK, project, mmpPath, exePath);

		}

		if (exeSelection.equals(EExeSelection.USE_REMOTE_EXECUTABLE))

			SettingsData.setProcessToLaunch(config, exeSelectionPath);

		addBuildOptions(config);

		// always set the current connection id

		config.setAttribute(RemoteConnectionsTRKHelper.CONNECTION_ATTRIBUTE, Registry.CURRENT_CONNECTION_ID);

		if (installPackage) {

			config.setAttribute(PreferenceConstants.J_PN_SisFileHostPath, sisPath);

			// special case handling for running out of E: drive - install into E: drive

			if (exeSelection.equals(EExeSelection.USE_REMOTE_EXECUTABLE) && 

					exeSelectionPath.getDevice().equalsIgnoreCase("E:")) //$NON-NLS-1$

				config.setAttribute(PreferenceConstants.J_PN_InstallToDrive, 4); // index 4 == E: drive

		}

	}

	private IPath getMmpPath(IPath exePath) {

		if (!mmps.isEmpty()) {

			for (int i = 0; i < exes.size(); i++) {

				IPath exe = exes.get(i);

				if (exe.lastSegment().equals(exePath.lastSegment()))

					return mmps.get(i);

			}

		}

		return null;

	}

	public IPath getExePath() {

		// if attach, doesn't matter so return first exe

		if (exeSelection.equals(EExeSelection.ATTACH_TO_PROCESS))

			return exes.isEmpty() ? Path.EMPTY : exes.get(0);

		// otherwise, see if we can use the selected path - process to launch string

		// by checking if the file name matches any of the ones in our list of exes

		String filename = exeSelectionPath.lastSegment();

		if (filename != null) {

			for (IPath exePath : exes) {

				if (filename.equalsIgnoreCase(exePath.lastSegment())) {

					return exePath;

				}

			}

		}

		// none could be found matching the selected path, so use the first in the list

		return getLaunchableExes().isEmpty() ? Path.EMPTY : getLaunchableExes().get(0);

	}

	private IConnectedService getConnectedService() {

		if (connection != null) {

			Collection<IConnectedService> connectedServices = 

				RemoteConnectionsActivator.getConnectionsManager().getConnectedServices(connection);

			for (IConnectedService connectedService : connectedServices) {

				if (connectedService.getService().getIdentifier().equals(service.getIdentifier()))

					return connectedService;

			}

		}

		return null;

	}

	/** Tell whether we can detect that the current connection is Sys TRK.

	 * 

	 * @return Boolean.TRUE if Sys TRK, Boolean.FALSE if App TRK, or <code>null</code> if unknown

	 */

	public Boolean isSysTRKConnection() {

		IConnectedService connectedService = getConnectedService();

		if (connectedService instanceof IConnectedService2) {

			String value = ((IConnectedService2) connectedService).getProperties().get("is-system-trk"); //$NON-NLS-1$

		}

		return null;

	}

	/**

	 * Tell whether Carbide is running in an internal layout.

	 * @return true if the installation includes known internal-only plugins

	 */

	public boolean isInternalLayout() {

		Bundle bundle = Platform.getBundle(COM_NOKIA_CARBIDE_SYMSEE_TRK_SUPPORT);

		if (bundle != null) {

			// assume this is an internal build 

			return true;

		}

		return false;

	}

	private String getApplicableLaunchTypeId() {

		if (exeSelection.equals(EExeSelection.ATTACH_TO_PROCESS))

			return SettingsData.ATTACH_LAUNCH_TYPE_ID;

		else if (!installPackage)

			return SettingsData.SYS_TRK_LAUNCH_TYPE_ID;

		else

			return SettingsData.APP_TRK_LAUNCH_TYPE_ID;

	}

	private void addBuildOptions(ILaunchConfigurationWorkingCopy config) {

		int buildBeforeLaunchValue = ICDTLaunchConfigurationConstants.BUILD_BEFORE_LAUNCH_USE_WORKSPACE_SETTING;

		switch (buildBeforeLaunch) {

		case NEVER:

			buildBeforeLaunchValue = ICDTLaunchConfigurationConstants.BUILD_BEFORE_LAUNCH_DISABLED;

			break;

		case ALWAYS:

			buildBeforeLaunchValue = ICDTLaunchConfigurationConstants.BUILD_BEFORE_LAUNCH_ENABLED;

			break;

		}

		config.setAttribute(ICDTLaunchConfigurationConstants.ATTR_BUILD_BEFORE_LAUNCH, buildBeforeLaunchValue);

	}

}