/*

* 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 "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.s60tools.symbianfoundationtemplates.ui.wizards.s60.classwizards;

import java.io.File;

import java.util.AbstractList;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.Map;

import org.eclipse.core.resources.IFile;

import org.eclipse.core.resources.ResourcesPlugin;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Path;

import org.eclipse.core.runtime.Status;

import org.eclipse.swt.SWT;

import org.eclipse.swt.graphics.FontMetrics;

import org.eclipse.swt.graphics.GC;

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.Event;

import org.eclipse.swt.widgets.Label;

import org.eclipse.swt.widgets.Text;

import org.eclipse.ui.PlatformUI;

import com.nokia.s60tools.symbianfoundationtemplates.SymbianFoundationTemplates;

import com.nokia.s60tools.symbianfoundationtemplates.engine.OriginalTemplate;

import com.nokia.s60tools.symbianfoundationtemplates.engine.s60.S60TransformKeys;

import com.nokia.s60tools.symbianfoundationtemplates.resources.HelpContextIDs;

import com.nokia.s60tools.symbianfoundationtemplates.resources.LastUsedData;

import com.nokia.s60tools.symbianfoundationtemplates.resources.Messages;

import com.nokia.s60tools.symbianfoundationtemplates.resources.PreferenceConstants;

import com.nokia.s60tools.symbianfoundationtemplates.ui.wizards.s60.FileSelectionControl;

import com.nokia.s60tools.symbianfoundationtemplates.ui.wizards.s60.FolderSelectionControl;

import com.nokia.s60tools.symbianfoundationtemplates.ui.wizards.s60.S60TemplatePageType;

import com.nokia.s60tools.symbianfoundationtemplates.ui.wizards.s60.S60TemplateWizardPage;

import com.nokia.s60tools.symbianfoundationtemplates.util.Util;

/**

 * Class page.

 *

 */

public class ClassPage extends S60TemplateWizardPage {

	private FolderSelectionControl sourceFolderSelection;

	private FolderSelectionControl headerFolderSelection;

	private FileSelectionControl classSelection;

	public FileSelectionControl fileNameSelection;

	private Text subSystemText;

	private Text moduleText;

	private Text descriptionText;

	private Text copyrightText;

	private Composite topLevel;

	private Button cleanBtn;

	private Combo licenseText;

	private Combo companyNameText;

	private Combo copyrightString;

	public ClassPage(S60TemplatePageType pageType) {

		super(pageType);

		setTitle(pageType.getTitle());

	}

	public void createControl(Composite parent) {

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

		// Layout manager

		topLevel.setLayout(new GridLayout(1, false));

		topLevel.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		Composite selection = new Composite(topLevel, SWT.NONE);

		selection.setLayout(new GridLayout(3, false));

		selection.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		if(pageType != S60TemplatePageType.M_CLASS_PAGE)

			sourceFolderSelection = new FolderSelectionControl(selection, this, Messages.getString("WizardPageSourceFolderLabel")); //$NON-NLS-1$

		// Folder selection control

		headerFolderSelection = new FolderSelectionControl(selection, this, Messages.getString("WizardPageHeaderFolderLabel")); //$NON-NLS-1$

		// File selection control

		classSelection = new FileSelectionControl(selection, this, Messages.getString("WizardPageClassNameLabel")); //$NON-NLS-1$

		//

		fileNameSelection = new FileSelectionControl(selection, this, "File Name:");

		// Separator

		Label separator = new Label(topLevel, SWT.SEPARATOR | SWT.HORIZONTAL);

		separator.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		// Info control

		Composite info = new Composite(topLevel, SWT.NONE);

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

		info.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		new Label(info, SWT.NONE).setText(Messages.getString("WizardPageSubSystemLabel")); //$NON-NLS-1$

		subSystemText = new Text(info, SWT.BORDER);

		subSystemText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		new Label(info, SWT.NONE).setText(Messages.getString("WizardPageModuleLabel")); //$NON-NLS-1$

		moduleText = new Text(info, SWT.BORDER);

		moduleText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		new Label(info, SWT.NONE).setText(Messages.getString("WizardPageDescriptionLabel")); //$NON-NLS-1$

		descriptionText = new Text(info, SWT.BORDER | SWT.V_SCROLL | SWT.MULTI | SWT.WRAP);

		GC gc = new GC(descriptionText);

		FontMetrics fm = gc.getFontMetrics();

		int cols = 20;

		int rows = 6;

		int width = cols * fm.getAverageCharWidth();

		int height = rows * fm.getHeight();

		GridData gridData = new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL);

		gridData.widthHint = width;

		gridData.heightHint = height;

		descriptionText.setLayoutData(gridData);

		new Label(info, SWT.NONE).setText(Messages.getString("WizardPageCopyrightLabel")); //$NON-NLS-1$

		copyrightText = new Text(info, SWT.BORDER);

		copyrightText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		new Label(info, SWT.NONE).setText(Messages.getString("WizardPageLicenseLabel")); //$NON-NLS-1$

		licenseText = new Combo(info, SWT.BORDER|SWT.READ_ONLY);

		licenseText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		new Label(info, SWT.NONE).setText(Messages.getString("WizardPageCompanyLabel")); //$NON-NLS-1$

		companyNameText = new Combo(info, SWT.BORDER);

		companyNameText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		new Label(info, SWT.NONE).setText(Messages.getString("WizardPageCopyrightStringLabel"));

		copyrightString = new Combo(info, SWT.BORDER);// | SWT.V_SCROLL | SWT.MULTI | SWT.WRAP);

		copyrightString.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL));

		GridData data=new GridData(GridData.FILL_HORIZONTAL);

		data.heightHint=30;

		cleanBtn=new Button(topLevel,SWT.CHECK);

		cleanBtn.setText(Messages.getString("WizardPageIncludeInstructionsLabel"));

		cleanBtn.setSelection(true);

		cleanBtn.setLayoutData(data);

		setControl(topLevel);

		setPageComplete(true);

		copyrightText.setText(new Integer(Util.getCopyrightYear()).toString());

		licenseText.setItems(Util.getDefaultLicence());

		licenseText.select(0);

		LastUsedData previousData = new LastUsedData();

		String[] values = previousData.getPreviousValues(LastUsedData.ValueTypes.NAME);

		if(values!=null)

		{

			companyNameText.setItems(values);

			companyNameText.select(0);

		}

		else

		{

			companyNameText.setText(Util.getDefaultCompanyName());

			previousData.saveValues(LastUsedData.ValueTypes.NAME, companyNameText.getText());

		}

		values = previousData.getPreviousValues(LastUsedData.ValueTypes.COPYRIGHT);

		if(values !=null)

		{

			copyrightString.setItems(values);

			copyrightString.select(0);

		}

		else

		{

			copyrightString.setText(Util.getDefaultCompanyCopyright());

			previousData.saveValues(LastUsedData.ValueTypes.COPYRIGHT, copyrightString.getText());

		}

		if(!preferenceStore.getBoolean(PreferenceConstants.OPENED_FROM_VIEW))

			setPreferencesFromStore();

		performHelp();

		//updateStatus();

		topLevel.setFocus();

	}

	public void performHelp() {

		PlatformUI.getWorkbench().getHelpSystem().setHelp(topLevel,

				HelpContextIDs.SF_TEMPLATES_OVERVIEW);

	}

	public AbstractList<OriginalTemplate> getTemplates() {

		AbstractList<OriginalTemplate> templates = new ArrayList<OriginalTemplate>();

		String[] templateFiles = getTemplateFile().split(";"); //$NON-NLS-1$

		IFile headerFile = ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(

				headerFolderSelection.getSelectedFolder() + File.separator

				+ fileNameSelection.getSelectedFileWithoutExtension() + ".h")); //$NON-NLS-1$

		IFile sourceFile = null;

		if(pageType != S60TemplatePageType.M_CLASS_PAGE)

			sourceFile = ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(

					sourceFolderSelection.getSelectedFolder() + File.separator

					+ fileNameSelection.getSelectedFileWithoutExtension() + ".cpp")); //$NON-NLS-1$

		templates.add(new OriginalTemplate(templateFiles[0], headerFile, getTransformRules()));

		if(pageType != S60TemplatePageType.M_CLASS_PAGE)

			templates.add(new OriginalTemplate(templateFiles[1], sourceFile, getTransformRules()));

		return templates;

	}

	protected AbstractList<IStatus> getStatuses() {

		AbstractList<IStatus> statuses = new ArrayList<IStatus>();

		statuses.add(Util.getFolderNameStatus(headerFolderSelection.getSelectedFolder(), Messages.getString("WizardPageHeaderFolderMsg"))); //$NON-NLS-1$

		if(pageType != S60TemplatePageType.M_CLASS_PAGE)

			statuses.add(Util.getFolderNameStatus(sourceFolderSelection.getSelectedFolder(), Messages.getString("WizardPageSourceFolderMsg"))); //$NON-NLS-1$

		statuses.add(getFileNameStatus(classSelection.getSelectedFile(),fileNameSelection.getSelectedFile()));

		return statuses;

	}

	protected void updateFields() {

		if(pageType != S60TemplatePageType.M_CLASS_PAGE)

			subSystemText.setText(Util.getSubSystemName(sourceFolderSelection.getSelectedFolder()));

		moduleText.setText(Util.getModuleName(headerFolderSelection.getSelectedFolder()));

	}

	protected void savePreferencesToStore() {

		if(preferenceStore.getBoolean(PreferenceConstants.OPENED_FROM_VIEW)==false)

		{

			if(pageType != S60TemplatePageType.M_CLASS_PAGE)	

				preferenceStore.setValue(PreferenceConstants.SF_CLASS_PAGE_SRCDIR, sourceFolderSelection.getSelectedFolder());

			preferenceStore.setValue(PreferenceConstants.SF_CLASS_PAGE_HDRDIR, headerFolderSelection.getSelectedFolder());

			preferenceStore.setValue(PreferenceConstants.SF_CLASS_PAGE_MODULE, moduleText.getText());

			preferenceStore.setValue(PreferenceConstants.SF_CLASS_PAGE_SUBSYSTEM, subSystemText.getText());

		}

		preferenceStore.setValue(PreferenceConstants.SF_LICENSE_INDEX, licenseText.getSelectionIndex());

		LastUsedData saveData = new LastUsedData();

		saveData.saveValues(LastUsedData.ValueTypes.NAME, companyNameText.getText());

		saveData.saveValues(LastUsedData.ValueTypes.COPYRIGHT, copyrightString.getText());

	}

	private void setPreferencesFromStore() {

		if(preferenceStore.getBoolean(PreferenceConstants.OPENED_FROM_VIEW)==false)

		{

			if(pageType != S60TemplatePageType.M_CLASS_PAGE && preferenceStore.getString(PreferenceConstants.SF_CLASS_PAGE_SRCDIR)!="")

				sourceFolderSelection.setSelectedFolder(preferenceStore.getString(PreferenceConstants.SF_CLASS_PAGE_SRCDIR));

			if(preferenceStore.getString(PreferenceConstants.SF_CLASS_PAGE_SRCDIR)!="")

				headerFolderSelection.setSelectedFolder(preferenceStore.getString(PreferenceConstants.SF_CLASS_PAGE_HDRDIR));

			moduleText.setText(preferenceStore.getString(PreferenceConstants.SF_CLASS_PAGE_MODULE));

			subSystemText.setText(preferenceStore.getString(PreferenceConstants.SF_CLASS_PAGE_SUBSYSTEM));

		}

		licenseText.select(preferenceStore.getInt(PreferenceConstants.SF_LICENSE_INDEX));

	}

	private Map<String, String> getTransformRules() {

		Map<String, String> transformRules = new HashMap<String, String>();

		transformRules.put(S60TransformKeys.getString("key_filename"), fileNameSelection.getSelectedFileWithoutExtension()); //$NON-NLS-1$

		transformRules.put(S60TransformKeys.getString("key_module"), moduleText.getText()); //$NON-NLS-1$

		transformRules.put(S60TransformKeys.getString("key_subsystem"), subSystemText.getText()); //$NON-NLS-1$

		transformRules.put(S60TransformKeys.getString("key_description"), descriptionText.getText()); //$NON-NLS-1$

		transformRules.put(S60TransformKeys.getString("key_copyright"), copyrightText.getText()); //$NON-NLS-1$

		transformRules.put(S60TransformKeys.getString("key_classname"), classSelection.getSelectedFileWithoutExtension()); //$NON-NLS-1$

		transformRules.put(S60TransformKeys.getString("key_license"), licenseText.getText()); //$NON-NLS-1$		

		transformRules.put(S60TransformKeys.getString("key_companyname"), companyNameText.getText()); //$NON-NLS-1$

		transformRules.put(S60TransformKeys.getString("key_companycopyright"), copyrightString.getText());

		if(licenseText.getText().equalsIgnoreCase("Symbian Foundation License v1.0"))

			transformRules.put(S60TransformKeys.getString("key_licenseurl"), "http://www.symbianfoundation.org/legal/sfl-v10.html");

		else if(licenseText.getText().equalsIgnoreCase("Eclipse Public License v1.0"))

			transformRules.put(S60TransformKeys.getString("key_licenseurl"), "http://www.eclipse.org/legal/epl-v10.html");

		String upperCaseClassName = classSelection.getSelectedFileWithoutExtension().toUpperCase();

		switch(pageType) {

		case C_CLASS_PAGE:

			transformRules.put(S60TransformKeys.getString("key_cclassname"), "C_" + upperCaseClassName + "_H"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

			break;

		case M_CLASS_PAGE:

			transformRules.put(S60TransformKeys.getString("key_mclassname"), "M_" + upperCaseClassName + "_H"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

			break;

		case R_CLASS_PAGE:

			transformRules.put(S60TransformKeys.getString("key_rclassname"), "R_" + upperCaseClassName + "_H"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

			break;

		case T_CLASS_PAGE:

			transformRules.put(S60TransformKeys.getString("key_tclassname"), "T_" + upperCaseClassName + "_H"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

			break;

		}

		return transformRules;

	}

	private IStatus getFileNameStatus(String className,String fileName) {

		IStatus fileStatus = new Status(IStatus.OK, SymbianFoundationTemplates.PLUGIN_ID, 0, "", null); //$NON-NLS-1$

		if(className.length() == 0)

			fileStatus = new Status(IStatus.ERROR, SymbianFoundationTemplates.PLUGIN_ID, -1, Messages.getString("WizardPageErrorClassNameEmpty"), null); //$NON-NLS-1$

		else if(fileName.length() == 0)

			fileStatus = new Status(IStatus.ERROR, SymbianFoundationTemplates.PLUGIN_ID, -1, Messages.getString("WizardPageErrorFileNameEmpty"), null);

		else if(fileName.indexOf(" ")!=-1)

			fileStatus = new Status(IStatus.ERROR, SymbianFoundationTemplates.PLUGIN_ID, -1, Messages.getString("WizardPageErrorFileNameHasSpaces"), null);

		else if(!Util.checkFileName(className))

			fileStatus = new Status(IStatus.ERROR, SymbianFoundationTemplates.PLUGIN_ID, -1, className+Messages.getString("WizardPageErrorInvalidClassName"), null);

		else if(!Util.checkFileName(fileName))

			fileStatus = new Status(IStatus.ERROR, SymbianFoundationTemplates.PLUGIN_ID, -1, fileName+Messages.getString("WizardPageErrorInvalidFileName"), null);

		else if(headerFolderSelection.getSelectedFolder()!="" && Util.getSelectedFile(fileName + ".h", headerFolderSelection.getSelectedFolder()).exists()) //$NON-NLS-1$

			fileStatus = new Status(IStatus.ERROR, SymbianFoundationTemplates.PLUGIN_ID, -1, Messages.getString("WizardPageErrorClassHeader") + fileName + ".h" + Messages.getString("WizardPageErrorClassAlreadyExists"), null); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

		else if(pageType != S60TemplatePageType.M_CLASS_PAGE && sourceFolderSelection.getSelectedFolder()!="" && Util.getSelectedFile(fileName + ".cpp", sourceFolderSelection.getSelectedFolder()).exists()) //$NON-NLS-1$

			fileStatus = new Status(IStatus.ERROR, SymbianFoundationTemplates.PLUGIN_ID, -1, Messages.getString("WizardPageErrorClassSource") + fileName + ".cpp" + Messages.getString("WizardPageErrorClassAlreadyExists"), null); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$

		else {

			String message = Messages.getString("WizardPageWarningClassNameDiscouraged"); //$NON-NLS-1$

			switch(pageType) {

			case C_CLASS_PAGE:

				if(!className.startsWith("C")) //$NON-NLS-1$

					fileStatus = new Status(IStatus.WARNING, SymbianFoundationTemplates.PLUGIN_ID, 1, message + "C.", null); //$NON-NLS-1$

				break;

			case M_CLASS_PAGE:

				if(!className.startsWith("M")) //$NON-NLS-1$

					fileStatus = new Status(IStatus.WARNING, SymbianFoundationTemplates.PLUGIN_ID, 1, message + "M.", null); //$NON-NLS-1$

				break;

			case R_CLASS_PAGE:

				if(!className.startsWith("R")) //$NON-NLS-1$

					fileStatus = new Status(IStatus.WARNING, SymbianFoundationTemplates.PLUGIN_ID, 1, message + "R.", null); //$NON-NLS-1$

				break;

			case T_CLASS_PAGE:

				if(!className.startsWith("T")) //$NON-NLS-1$

					fileStatus = new Status(IStatus.WARNING, SymbianFoundationTemplates.PLUGIN_ID, 1, message + "T.", null); //$NON-NLS-1$

				break;

			}

		}

		return fileStatus;

	}

	private String getTemplateFile() {

		String location = SymbianFoundationTemplates.getDefault().getTemplatesPath() + File.separator;

		String[] templateFiles = pageType.getTemplateFiles().split(";"); //$NON-NLS-1$

		if(!cleanBtn.getSelection())

			return location + templateFiles[2] + ";" + location + templateFiles[3]; //$NON-NLS-1$

		return location + templateFiles[0] + ";" + location + templateFiles[1]; //$NON-NLS-1$

	} 

	@Override

	public void handleEvent(Event event) {

		if(event.widget == classSelection.getTextControl())

		{

			fileNameSelection.setFileName(classSelection.getSelectedFile());

		}

		super.handleEvent(event);

	}

}