/*

* Copyright (c) 2009 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.carbide.cdt.internal.builder.ui;

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

import java.util.ListIterator;

import org.eclipse.cdt.core.model.ICProject;

import org.eclipse.core.resources.IProject;

import org.eclipse.jface.dialogs.MessageDialog;

import org.eclipse.jface.resource.JFaceResources;

import org.eclipse.jface.viewers.DoubleClickEvent;

import org.eclipse.jface.viewers.IDoubleClickListener;

import org.eclipse.jface.viewers.IFontProvider;

import org.eclipse.jface.viewers.ISelectionChangedListener;

import org.eclipse.jface.viewers.IStructuredContentProvider;

import org.eclipse.jface.viewers.IStructuredSelection;

import org.eclipse.jface.viewers.ITableColorProvider;

import org.eclipse.jface.viewers.ITableLabelProvider;

import org.eclipse.jface.viewers.LabelProvider;

import org.eclipse.jface.viewers.SelectionChangedEvent;

import org.eclipse.jface.viewers.TableViewer;

import org.eclipse.jface.viewers.Viewer;

import org.eclipse.jface.viewers.ViewerSorter;

import org.eclipse.jface.window.Window;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.ModifyEvent;

import org.eclipse.swt.events.ModifyListener;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.events.SelectionListener;

import org.eclipse.swt.graphics.Color;

import org.eclipse.swt.graphics.Font;

import org.eclipse.swt.graphics.Image;

import org.eclipse.swt.layout.FormAttachment;

import org.eclipse.swt.layout.FormData;

import org.eclipse.swt.layout.FormLayout;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Combo;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.Control;

import org.eclipse.swt.widgets.Group;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.TabFolder;

import org.eclipse.swt.widgets.TabItem;

import org.eclipse.swt.widgets.Table;

import org.eclipse.swt.widgets.TableColumn;

import org.eclipse.ui.PlatformUI;

import org.eclipse.ui.dialogs.PropertyPage;

import com.nokia.carbide.cdt.builder.CarbideBuilderPlugin;

import com.nokia.carbide.cdt.builder.builder.CarbideCPPBuilder;

import com.nokia.carbide.cdt.builder.project.ICarbideBuildConfiguration;

import com.nokia.carbide.cdt.builder.project.ICarbideProjectInfo;

import com.nokia.carbide.cdt.builder.project.ICarbideProjectModifier;

import com.nokia.carbide.cdt.builder.project.IEnvironmentVariable;

import com.nokia.carbide.cdt.builder.project.IEnvironmentVarsInfo;

import com.nokia.carbide.cdt.internal.api.builder.ui.ManageConfigurationsDialog;

import com.nokia.carbide.cdt.internal.builder.CarbideBuildConfiguration;

import com.nokia.carbide.cdt.internal.builder.EnvironmentVariable;

public class CarbideBuildConfigurationsPage extends PropertyPage {

	// need to override Combo for edited text

	// since feature request for image support in Combo had

	// been ignored since 2001 

	// https://bugs.eclipse.org/bugs/show_bug.cgi?id=4510

	private class BuildConfigCombo {

		Combo combo;

		public BuildConfigCombo(Composite parent, int style) {

			combo = new Combo(parent, style);

		}

		public void add(String config) {

			combo.add(CarbideBuildConfiguration.toMarkedConfig(config));

		}

		public String getItem(int index) {

			return CarbideBuildConfiguration.fromMarkedConfig(combo.getItem(index));

		}

		public String getText() {

			return CarbideBuildConfiguration.fromMarkedConfig(combo.getText());

		}

		public void addModifyListener(

				ModifyListener bldCongifComboModifyListener) {

			combo.addModifyListener(bldCongifComboModifyListener);

		}

		public void setLayoutData(GridData activeConfigGridData) {

			combo.setLayoutData(activeConfigGridData);

		}

		public void setVisibleItemCount(int i) {

			combo.setVisibleItemCount(i);

		}

		public void select(int index) {

			combo.select(index);

		}

		public void removeAll() {

			combo.removeAll();

		}

	}

	// sis builder tab

	SisFilesBlock sisFilesBlock;

	// Env vars tab

	private Button newEnvVarButton;

	private Button editEnvVarButton;

	private Button removeEnvVarButton;

	private TableViewer envVarsTableViewer;

	private Combo varUseCombo;

	private static final String VAR_USE_DEFAULT_STRING = "Default"; //$NON-NLS-1$

	private static final String VAR_USE_PREPEND_STRING = "Prepend"; //$NON-NLS-1$

	private static final String VAR_USE_APPEND_STRING = "Append"; //$NON-NLS-1$

	private static final String VAR_USE_REPLACE_STRING = "Replace"; //$NON-NLS-1$

	private static final String VAR_USE_UNDEFINE_STRING = "Undefine"; //$NON-NLS-1$

	private static final String UNDEFINED_VAR = "[undefined]"; //$NON-NLS-1$

	private List<IEnvironmentVariable> envVarList = new ArrayList<IEnvironmentVariable>(); // The list of variables in the table viewer - contains a mix of default system values and override values

	private List<IEnvironmentVariable> envVarListOrig = new ArrayList<IEnvironmentVariable>(); //  copy at ui load to compare changes

	// arguments tab

	ArgumentsTabComposite argumentsTabcomposite;

	// paths and symbols tab

	PathsAndSymbolsTabComposite pathsAndSymbolsTabComposite;

	// rom builder tab

	ROMBuilderTabComposite romBuilderTabComposite;

	// Configuration management/switching

	private IProject project;

	private BuildConfigCombo buildConfigurationCombo;

	private Button manageButton;

	private String lastSelectedConfigName = ""; //$NON-NLS-1$

	private ModifyListener bldCongifComboModifyListener = new ModifyListener() {

		public void modifyText(ModifyEvent e) {

			// do work here when config changes....

			handleConfigurationChangeEvent(true);

		}

	};

	protected Control createContents(Composite parent) {

		initProjectData();

		Composite topPane = new Composite(parent, SWT.NONE);

		topPane.setLayout(new GridLayout());

		topPane.setLayoutData(new GridData(GridData.FILL_BOTH));

		final Group activeConfigurationGroup = new Group(topPane, SWT.NONE);

		final GridData activeConfigGridData = new GridData(GridData.FILL, GridData.CENTER, true, false);

		activeConfigGridData.widthHint = 250;

		activeConfigurationGroup.setText(Messages.getString("CarbideBuildConfigurationsPage.Active_Configuration")); //$NON-NLS-1$

		activeConfigurationGroup.setLayoutData(activeConfigGridData);

		final GridLayout gridLayout = new GridLayout();

		gridLayout.numColumns = 3;

		activeConfigurationGroup.setLayout(gridLayout);

		final Label buildConfigurationLabel = new Label(activeConfigurationGroup, SWT.NONE);

		buildConfigurationLabel.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.Change_Config_ToolTip")); //$NON-NLS-1$

		buildConfigurationLabel.setText(Messages.getString("CarbideBuildConfigurationsPage.Configuration_Label")); //$NON-NLS-1$

		buildConfigurationCombo = new BuildConfigCombo(activeConfigurationGroup, SWT.READ_ONLY);

		buildConfigurationCombo.setVisibleItemCount(15);

		buildConfigurationCombo.setLayoutData(activeConfigGridData);

		buildConfigurationCombo.addModifyListener(bldCongifComboModifyListener);

		manageButton = new Button(activeConfigurationGroup, SWT.NONE);

		manageButton.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.Manage_Button_ToolTip")); //$NON-NLS-1$

		manageButton.setText(Messages.getString("CarbideBuildConfigurationsPage.Manage")); //$NON-NLS-1$

		addButtonListener(manageButton);

		final TabFolder tabFolder = new TabFolder(topPane, SWT.NONE);

		final GridData tabFolderGridData = new GridData(SWT.FILL, SWT.FILL, true, true);

		tabFolderGridData.heightHint = 430;

		tabFolderGridData.widthHint = 550;

		tabFolder.setLayoutData(tabFolderGridData);

		////////////////////// SIS Builder Tab ////////////////

		final TabItem sisTabItem = new TabItem(tabFolder, SWT.NONE);

		sisTabItem.setText(Messages.getString("CarbideBuildConfigurationsPage.SIS_Builder_Tab")); //$NON-NLS-1$

		sisTabItem.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.SIS_Builder_Tab_ToolTip")); //$NON-NLS-1$

		final Composite sisComposite = new Composite(tabFolder, SWT.NONE);

		sisComposite.setLayout(new GridLayout(2, false));

		sisTabItem.setControl(sisComposite);

		sisFilesBlock = new SisFilesBlock(project);

		sisFilesBlock.createControl(sisComposite);

		Control control = sisFilesBlock.getControl();

		GridData data = new GridData(GridData.FILL_BOTH);

		data.horizontalSpan = 1;

		data.horizontalIndent = 18;

		data.verticalIndent = 18;

		control.setLayoutData(data);

		////////////////////// Environment Tab ////////////////

		TabItem envTabItem = new TabItem(tabFolder, SWT.NONE);

		envTabItem.setText(Messages.getString("CarbideBuildConfigurationsPage.Environment_Tab")); //$NON-NLS-1$

		envTabItem.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.Environement_Tab_ToolTip")); //$NON-NLS-1$

		final Composite envVarsComposite = new Composite(tabFolder, SWT.NONE);

		envVarsComposite.setLayout(new GridLayout(2, false));

		envTabItem.setControl(envVarsComposite);

		final Group environmentVariablesGroup = new Group(envVarsComposite, SWT.NONE);

		environmentVariablesGroup.setText(Messages.getString("CarbideBuildConfigurationsPage.Env_Vars_Group")); //$NON-NLS-1$

		environmentVariablesGroup.setLayout(new GridLayout());

		environmentVariablesGroup.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, true));

		envVarsTableViewer = new TableViewer(environmentVariablesGroup, SWT.FULL_SELECTION | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);

		Table table = envVarsTableViewer.getTable();

		table.setLinesVisible(true);

		table.setHeaderVisible(true);

		table.setLayoutData(new GridData(SWT.DEFAULT, SWT.TOP, true, true));

		final TableColumn envVarTableColumn = new TableColumn(table, SWT.NONE);

		envVarTableColumn.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.Env_Var_Col_ToolTip")); //$NON-NLS-1$

		envVarTableColumn.setWidth(100);

		envVarTableColumn.setText(Messages.getString("CarbideBuildConfigurationsPage.Variable")); //$NON-NLS-1$

		final TableColumn envVarValueColumn = new TableColumn(table, SWT.NONE);

		envVarValueColumn.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.Value_Col_ToolTip")); //$NON-NLS-1$

		envVarValueColumn.setWidth(2048);

		envVarValueColumn.setText(Messages.getString("CarbideBuildConfigurationsPage.Value")); //$NON-NLS-1$

		envVarsTableViewer.addSelectionChangedListener(new ISelectionChangedListener() {

			public void selectionChanged(SelectionChangedEvent event) {

				handleTableSelectionChanged(event);

			}

		});

		envVarsTableViewer.addDoubleClickListener(new IDoubleClickListener() {

			public void doubleClick(DoubleClickEvent event) {

				if (!envVarsTableViewer.getSelection().isEmpty()) {

					handleEnvAddEditButtonSelected(true);

				}

			}

		});

		envVarsTableViewer.setContentProvider(new EnvironmentVariableContentProvider());

		envVarsTableViewer.setLabelProvider(new EnvironmentVariableLabelProvider());

		final Composite envVarsButtonsComposite = new Composite(envVarsComposite, SWT.NONE);

		envVarsButtonsComposite.setLayout(new FormLayout());

		envVarsButtonsComposite.setLayoutData(new GridData(90, 200));

		newEnvVarButton = new Button(envVarsButtonsComposite, SWT.NONE);

		newEnvVarButton.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.New_Env_Var_ToolTip")); //$NON-NLS-1$

		final FormData formData = new FormData();

		formData.bottom = new FormAttachment(0, 30);

		formData.top = new FormAttachment(0, 5);

		formData.left = new FormAttachment(0, 5);

		formData.right = new FormAttachment(0, 85);

		newEnvVarButton.setLayoutData(formData);

		newEnvVarButton.setText(Messages.getString("CarbideBuildConfigurationsPage.New")); //$NON-NLS-1$

		addButtonListener(newEnvVarButton);

		editEnvVarButton = new Button(envVarsButtonsComposite, SWT.NONE);

		editEnvVarButton.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.Modify_Env_Var_ToolTip")); //$NON-NLS-1$

		final FormData formData_1 = new FormData();

		formData_1.top = new FormAttachment(0, 35);

		formData_1.left = new FormAttachment(0, 5);

		formData_1.right = new FormAttachment(0, 85);

		editEnvVarButton.setLayoutData(formData_1);

		editEnvVarButton.setText(Messages.getString("CarbideBuildConfigurationsPage.Edit")); //$NON-NLS-1$

		addButtonListener(editEnvVarButton);

		removeEnvVarButton = new Button(envVarsButtonsComposite, SWT.NONE);

		removeEnvVarButton.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.Undefine_ToolTip")); //$NON-NLS-1$

		final FormData formDataRemoveButton = new FormData();

		formDataRemoveButton.top = new FormAttachment(0, 65);

		formDataRemoveButton.left = new FormAttachment(0, 5);

		formDataRemoveButton.right = new FormAttachment(0, 85);

		removeEnvVarButton.setLayoutData(formDataRemoveButton);

		removeEnvVarButton.setText(Messages.getString("CarbideBuildConfigurationsPage.Undefine")); //$NON-NLS-1$

		addButtonListener(removeEnvVarButton);

		final Group variableUseGroup = new Group(envVarsComposite, SWT.NONE);

		variableUseGroup.setToolTipText(Messages.getString("CarbideBuildConfigurationsPage.Variable_Use_ToolTip")); //$NON-NLS-1$

		variableUseGroup.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false));

		variableUseGroup.setText(Messages.getString("CarbideBuildConfigurationsPage.Variable_Use")); //$NON-NLS-1$

		variableUseGroup.setLayout(new GridLayout());

		varUseCombo = new Combo(variableUseGroup, SWT.READ_ONLY);

		varUseCombo.setLayoutData(new GridData(SWT.FILL, SWT.BOTTOM, true, false));

		varUseCombo.add(VAR_USE_DEFAULT_STRING);

		varUseCombo.add(VAR_USE_PREPEND_STRING);

		varUseCombo.add(VAR_USE_APPEND_STRING);

		varUseCombo.add(VAR_USE_REPLACE_STRING);

		varUseCombo.add(VAR_USE_UNDEFINE_STRING);

		varUseCombo.select(0);

		new Label(envVarsComposite, SWT.NONE);

		addComboListener(varUseCombo);

		/////////////////// Build Options Tab /////////////////

		// only for SBSv1

		if (!CarbideBuilderPlugin.getBuildManager().isCarbideSBSv2Project(project)) {

			TabItem argumentsTabItem = new TabItem(tabFolder, SWT.NONE);

			argumentsTabItem.setText(Messages.getString("ArgumentsTab.Title")); //$NON-NLS-1$

			argumentsTabItem.setToolTipText(Messages.getString("ArgumentsTab.ToolTip")); //$NON-NLS-1$

			argumentsTabcomposite = new ArgumentsTabComposite(argumentsTabItem);

			argumentsTabcomposite.createControls();

			argumentsTabItem.setControl(argumentsTabcomposite);

		}

		/////////////////// Paths and Symbols Tab /////////////////

		TabItem pathsAndSymbolsTabItem = new TabItem(tabFolder, SWT.NONE);

		pathsAndSymbolsTabItem.setText(Messages.getString("PathsAndSymbolsTab.Title")); //$NON-NLS-1$

		pathsAndSymbolsTabItem.setToolTipText(Messages.getString("PathsAndSymbolsTab.ToolTip")); //$NON-NLS-1$

		pathsAndSymbolsTabComposite = new PathsAndSymbolsTabComposite(pathsAndSymbolsTabItem);

		pathsAndSymbolsTabComposite.createControls();

		pathsAndSymbolsTabItem.setControl(pathsAndSymbolsTabComposite);

		/////////////////// ROM Builder Tab /////////////////

		TabItem romBuilderTabItem = new TabItem(tabFolder, SWT.NONE);

		romBuilderTabItem.setText(Messages.getString("CarbideRomBuilderTab.Title")); //$NON-NLS-1$

		romBuilderTabItem.setToolTipText(Messages.getString("CarbideRomBuilderTab.ToolTip")); //$NON-NLS-1$

		romBuilderTabComposite = new ROMBuilderTabComposite(romBuilderTabItem);

		romBuilderTabComposite.createControls();

		romBuilderTabItem.setControl(romBuilderTabComposite);

		// read in the settings and populate the prefs...

		if (project != null) {

			loadConfigurationSettings();

			ICarbideProjectInfo cpi = CarbideBuilderPlugin.getBuildManager().getProjectInfo(project);

			if (cpi != null) {

				ICarbideBuildConfiguration config = cpi.getDefaultConfiguration();

				if (config != null) {

					sisFilesBlock.initData(config);

					if (argumentsTabcomposite != null) {

						argumentsTabcomposite.initData(config);

					}

					pathsAndSymbolsTabComposite.initData(config);

					romBuilderTabComposite.initData(config);

				}

			}

			setUpEnvVarsTable(new String[0], null);

			addEnvironementTableSelectionListener();

		}

		PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, CarbideCPPBuilderUIHelpIds.CARBIDE_BUILDER_CONFIGURATIONS_PAGE);

		return topPane;

	}

	/**

	 * Initialize global project data, configuration settings

	 *

	 */

	public void initProjectData() {

		project = getProject();

	}

	public IProject getProject() {

		Object tempElement = getElement();

		IProject project = null;

		if (tempElement != null) {

			if (tempElement instanceof IProject) {

				project = (IProject) tempElement;

			} else if (tempElement instanceof ICProject) {

				project = ((ICProject)tempElement).getProject();

			}

		}

		return project;

	}

	/**

	 * Content provider for the environment table

	 */

	protected class EnvironmentVariableContentProvider implements IStructuredContentProvider {

		public Object[] getElements(Object inputElement) {

			List tempList = (ArrayList)inputElement;

			Object[] obj=new Object[tempList.size()];

			int i = 0;

			ListIterator li = tempList.listIterator();

		    while (li.hasNext()) {

		        	obj[i++] = li.next();

		        }

			return obj;

		}

		public void dispose() {

		}

		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {

			if (newInput == null) {

				return;

			}

			if (viewer instanceof TableViewer) {

				TableViewer tableViewer = (TableViewer)viewer;

				if (tableViewer.getTable().isDisposed()) {

					return;

				}

				tableViewer.setSorter(new ViewerSorter() {

					public int compare(Viewer iviewer, Object e1, Object e2) {

						if (e1 == null) {

							return -1;

						} else if (e2 == null) {

							return 1;

						} else {

							return ((IEnvironmentVariable)e1).getName().compareToIgnoreCase( ((IEnvironmentVariable)e2).getName());

						}

					}

				});

			}

		}

	}

	/**

	 * Label provider for the environment table

	 */

	public class EnvironmentVariableLabelProvider extends LabelProvider implements ITableLabelProvider, ITableColorProvider, IFontProvider {

		public String getColumnText(Object element, int columnIndex) {

			String result = null;

			if (element != null && element instanceof IEnvironmentVariable) {

				IEnvironmentVariable var = (IEnvironmentVariable)element;

				switch (columnIndex) {

					case 0 : // variable

						result = var.getName();

						break;

					case 1 : // value

						result = var.getValue();

						break;

				}

			}

			return result;

		}

		public Image getColumnImage(Object element, int columnIndex) {

			return null;

		}

		public Color getForeground(Object obj, int index) {

			return null;

		}

		/*

		 * (non-Javadoc)

		 * 

		 * @see org.eclipse.jface.viewers.IFontProvider#getFont(java.lang.Object)

		 */

		public Font getFont(Object obj) {

			if (obj instanceof IEnvironmentVariable) {

				IEnvironmentVariable eVar = (IEnvironmentVariable)obj;

				if (eVar.getUse() != IEnvironmentVariable.ENV_VAR_USE_DEFAULT) {

					return JFaceResources.getFontRegistry().getBold(

							envVarsTableViewer.getControl().getFont().toString()); // JFaceResources.DIALOG_FONT

				}

			}

			return null;

		}

		public Color getBackground(Object element, int columnIndex) {

			return null;

		}

	}

	public boolean performOk() {

		ICarbideProjectModifier cpm = CarbideBuilderPlugin.getBuildManager().getProjectModifier(project);

		if (cpm != null) {

			// check to see if the default build config has changed...

			String selectedConfigString = buildConfigurationCombo.getText();

			String defaultConfigName = cpm.getDefaultBuildConfigName();

			if (!selectedConfigString.equals(defaultConfigName)) {

				cpm.saveChanges();

			}

			ICarbideBuildConfiguration selectedConfig = cpm.getNamedConfiguration(lastSelectedConfigName);

			if (selectedConfig != null) {

				// config may have been deleted

				if (!compareConfigurationSettings(selectedConfig, true)) {

					selectedConfig.saveConfiguration(true);

				}

			}

		}

		super.performOk();

		return true;

	}