/*

 * 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.carbide.cpp.internal.pi.wizards.ui;

import java.util.List;

import org.eclipse.core.runtime.IPath;

import org.eclipse.core.runtime.IStatus;

import org.eclipse.core.runtime.Path;

import org.eclipse.core.runtime.Status;

import org.eclipse.jface.dialogs.ErrorDialog;

import org.eclipse.jface.viewers.ISelectionChangedListener;

import org.eclipse.jface.viewers.IStructuredContentProvider;

import org.eclipse.jface.viewers.SelectionChangedEvent;

import org.eclipse.jface.viewers.TableViewer;

import org.eclipse.jface.viewers.Viewer;

import org.eclipse.swt.SWT;

import org.eclipse.swt.events.SelectionAdapter;

import org.eclipse.swt.events.SelectionEvent;

import org.eclipse.swt.layout.GridData;

import org.eclipse.swt.layout.GridLayout;

import org.eclipse.swt.widgets.Button;

import org.eclipse.swt.widgets.Composite;

import org.eclipse.swt.widgets.DirectoryDialog;

import org.eclipse.swt.widgets.FileDialog;

import org.eclipse.swt.widgets.Table;

import org.eclipse.swt.widgets.TableColumn;

import com.nokia.carbide.cpp.pi.PiPlugin;

/**

 * Provides content of the profile data file selection from file system group

 */

public class FileSelectionGroup extends AbstractBaseGroup {

	private TableViewer profileDataTable;

	/**

	 * Constructor 

	 * 

	 * @param parent instance of the parent composite 

	 * @param wizardSettings instance of the INewPIWizardSettings

	 */

	public FileSelectionGroup(Composite parent,

			INewPIWizardSettings wizardSettings) {

		super(parent, wizardSettings);

	}

	/*

	 * (non-Javadoc)

	 * @see com.nokia.carbide.cpp.internal.pi.wizards.ui.AbstractBaseGroup#createContent()

	 */

	protected void createContent() {

		GridLayout gridLayout = new GridLayout();

		gridLayout.numColumns = 2;

		this.setLayout(gridLayout);

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

		this.setText(Messages.getString("FileSelectionGroup.title")); //$NON-NLS-1$

		profileDataTable = new TableViewer(this, SWT.BORDER| SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL

				| SWT.FULL_SELECTION);

		TableColumn column = new TableColumn(profileDataTable.getTable(), SWT.NONE);

		column.setText(Messages.getString("FileSelectionGroup.profilerDataFileName")); //$NON-NLS-1$

		column.setWidth(200);

		column.setResizable(true);

		column.setMoveable(true);

		column.addSelectionListener(new SelectionAdapter(){

			public void widgetSelected(SelectionEvent e)

	        {

	        	if (!(e.widget instanceof TableColumn))

	        		return;

	        	((AbstractBaseSorter)profileDataTable.getSorter()).doSort(0);

	        	profileDataTable.refresh();

	        }

		});		

		column = new TableColumn(profileDataTable.getTable(), SWT.NONE);

		column.setText(Messages.getString("FileSelectionGroup.profilerDataFilePath")); //$NON-NLS-1$

		column.setWidth(300);

		column.setResizable(true);

		column.setMoveable(true);

		column.addSelectionListener(new SelectionAdapter(){

			public void widgetSelected(SelectionEvent e)

	        {

	        	if (!(e.widget instanceof TableColumn))

	        		return;

	        	((AbstractBaseSorter)profileDataTable.getSorter()).doSort(1);

	        	profileDataTable.refresh();

	        }

		});

		GridData fileLogsTableGridData = new GridData(GridData.FILL_BOTH);

		profileDataTable.getTable().setLayoutData(fileLogsTableGridData);

		profileDataTable.getTable().setHeaderVisible(true);

		profileDataTable.getTable().setLinesVisible(true);

		profileDataTable.setContentProvider(new IStructuredContentProvider(){

			public Object[] getElements(Object inputElement) {

				if (inputElement instanceof List<?>){

					return ((List<?>)inputElement).toArray();

				}

				return new Object[0];

			}

			public void dispose() {

			}

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

			}

		});

		profileDataTable.addSelectionChangedListener(new ISelectionChangedListener() {

			public void selectionChanged(SelectionChangedEvent event) {

				if(profileDataTable.getTable().getSelectionCount() == 1){

					wizardSettings.validatePage();				

				}				

			}

		});

		profileDataTable.setSorter(	new AbstractBaseSorter(profileDataTable.getTable(), 0){

			@Override

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

				IPath path1 = (IPath)e1;

				IPath path2 = (IPath)e2;

				int returnCode = 0;

				switch (column) {

				case 0:

					returnCode = path1.lastSegment().compareTo(path2.lastSegment());

					break;

				case 1:

					returnCode = path1.removeLastSegments(1).toOSString().compareTo(path2.removeLastSegments(1).toOSString());

					break;

				default:

					break;

				}

				if (!sortAscending)

					returnCode = -returnCode;

				return returnCode;

			}			

		});		

		profileDataTable.setLabelProvider(new AbstractLabelProvider() {

			public String getColumnText(Object element, int columnIndex) {

				IPath path = (IPath)element;

				switch (columnIndex) {

				case 0:	

					return path.lastSegment();

				case 1:

					return path.removeLastSegments(1).toOSString();

				default:

					break;

				}

				return ""; //$NON-NLS-1$

			}			

		});

		Composite fileSelectionButtonComposite = new Composite(this, SWT.NONE);

		GridLayout threadButtonLayout = new GridLayout();

		GridData fileSelectionButtonGridData = new GridData(

				GridData.HORIZONTAL_ALIGN_FILL);

		fileSelectionButtonComposite.setLayoutData(fileSelectionButtonGridData);

		fileSelectionButtonComposite.setLayout(threadButtonLayout);

		threadButtonLayout.numColumns = 1;

		// Add file button

		Button addFileButton = new Button(fileSelectionButtonComposite,

				SWT.PUSH);

		addFileButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		addFileButton.setText(Messages.getString("FileSelectionGroup.actionAddFile")); //$NON-NLS-1$

		addFileButton.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent e) {

				// open file dialog for selecting a crash file

				FileDialog dialog = new FileDialog(getShell(), SWT.MULTI);

				dialog.setText(Messages.getString("FileSelectionGroup.dialogFileTitle")); //$NON-NLS-1$

				String[] filterExt = { "*.dat", "*.*" }; //$NON-NLS-1$ //$NON-NLS-2$

				dialog.setFilterExtensions(filterExt);

				String path = dialog.open();

				if(path != null){

					IPath folder = new Path(path).removeLastSegments(1);					

					for(String fileName: dialog.getFileNames()){

						try {

							addProfileDataFile(folder.append(fileName));						

						} catch (IllegalArgumentException iae) {

							IStatus status = new Status(Status.ERROR,

									PiPlugin.PLUGIN_ID, iae.getMessage());

							ErrorDialog.openError(getShell(),

									Messages.getString("FileSelectionGroup.performanceInvestigator"), null, status); //$NON-NLS-1$

						}					

					}

					refreshTable(profileDataTable);

				}			

			}

		});

		// Add folder button

		Button addDirectoryButton = new Button(fileSelectionButtonComposite,

				SWT.PUSH);

		addDirectoryButton

				.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		addDirectoryButton.setText(Messages.getString("FileSelectionGroup.actionAddDirectory")); //$NON-NLS-1$

		addDirectoryButton.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent e) {

				// open file dialog for selecting a crash file

				DirectoryDialog dialog = new DirectoryDialog(getShell());

				dialog

						.setText(Messages.getString("FileSelectionGroup.dialogDirectoryTitle")); //$NON-NLS-1$

				String result = dialog.open();

				if (result != null) {

					try {

						addDirectory(new Path(result));			

						refreshTable(profileDataTable);

					} catch (IllegalArgumentException iae) {

						IStatus status = new Status(Status.ERROR,

								PiPlugin.PLUGIN_ID, iae.getMessage());

						ErrorDialog.openError(getShell(),

								Messages.getString("FileSelectionGroup.performanceInvestigator"), null, status); //$NON-NLS-1$

					}

				}

			}

		});

		// Remove one file button

		Button removeOneButton = new Button(fileSelectionButtonComposite,

				SWT.PUSH);

		removeOneButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		removeOneButton.setText(Messages.getString("FileSelectionGroup.actionRemove")); //$NON-NLS-1$

		removeOneButton.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent e) {

				removeSelectedItem(profileDataTable);

				refreshTable(profileDataTable);

			}

		});

		// Remove all files and folders button

		Button removeAllButton = new Button(fileSelectionButtonComposite,

				SWT.PUSH);

		removeAllButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		removeAllButton.setText(Messages.getString("FileSelectionGroup.actionRemoveAll")); //$NON-NLS-1$

		removeAllButton.addSelectionListener(new SelectionAdapter() {

			public void widgetSelected(SelectionEvent e) {

				removeAll();

				refreshTable(profileDataTable);

			}

		});

	}

	/*

	 * (non-Javadoc)

	 * @see com.nokia.carbide.cpp.internal.pi.wizards.ui.AbstractBaseGroup#getTable()

	 */

	@Override

	public Table getTable() {

		return profileDataTable.getTable();

	}

}