package org.eparapher.rcp.properties;

import java.io.File;
import java.util.Date;

import org.apache.log4j.Logger;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.swt.SWT;
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.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.dialogs.PropertyPage;
import org.eparapher.rcp.views.documents.SecuredDocumentsView;

public class FilePropertyPage extends PropertyPage {

	private static final String ID = "org.eparapher.rcp.properties.filePropertyPage";
	
	private static Logger log = Logger.getLogger(FilePropertyPage.class);
	
	private static final String PATH_TITLE    = "Path : ";
	private static final String SIZE_TITLE    = "Size : ";
	private static final String LASTMOD_TITLE = "Last modified : ";
	
	private static final String READ_TITLE    = "Readable : ";
	private static final String WRITE_TITLE   = "Writable : ";
	private static final String EXEC_TITLE    = "Executable : ";
	
	private static final int TEXT_FIELD_WIDTH = 150;
	
	private File file = null;

	private Button readButton = null;
	private Button writeButton = null;
	private Button executeButton = null;
	/**
	 * Constructor for SamplePropertyPage.
	 */
	public FilePropertyPage() {
		super();
	}

	private void setSelectedFile() {
		String filepath = ((SecuredDocumentsView.TreeObject) getElement()).getFilePath();
		file = new File(filepath);
	}
	
	private void addFirstSection(Composite parent) {
		Composite composite = createDefaultComposite(parent);

		//Path
		Label pathLabel = new Label(composite, SWT.NONE);
		pathLabel.setText(PATH_TITLE);
		Label pathValue = new Label(composite, SWT.NONE);
		pathValue.setText(file.getAbsolutePath());
		//pathValue.setText(((SecuredDocumentsView.TreeObject) getElement()).getFilePath());
		//Text pathValueText = new Text(composite, SWT.WRAP | SWT.READ_ONLY);
		//pathValueText.setText(((IResource) getElement()).getFullPath().toString());
		
		//Size
		Label sizeLabel = new Label(composite, SWT.NONE);
		sizeLabel.setText(SIZE_TITLE);
		Label sizeValue = new Label(composite, SWT.NONE);
		sizeValue.setText( file.length() + " Bytes");
	}

	private void addSeparator(Composite parent) {
		Label separator = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL);
		GridData gridData = new GridData();
		gridData.horizontalAlignment = GridData.FILL;
		gridData.grabExcessHorizontalSpace = true;
		separator.setLayoutData(gridData);
	}

	private void addSecondSection(Composite parent) {
		Composite composite = createDefaultComposite(parent);

		// Last Modified
		Label lastmodLabel = new Label(composite, SWT.NONE);
		lastmodLabel.setText(LASTMOD_TITLE);
		Label lastmodValue = new Label(composite, SWT.NONE);
		lastmodValue.setText(new Date(file.lastModified()).toString());
		
		//Read 
		Label readLabel = new Label(composite, SWT.NONE);
		readLabel.setText(READ_TITLE);
		readButton = new Button(composite, SWT.CHECK);
		readButton.setSelection(file.canRead());
		readButton.setEnabled(false);

		//Write
		Label writeLabel = new Label(composite, SWT.NONE);
		writeLabel.setText(WRITE_TITLE);
		writeButton = new Button(composite, SWT.CHECK);
		writeButton.setSelection(file.canRead());
		writeButton.setEnabled(false);

		//Execute
		Label execLabel = new Label(composite, SWT.NONE);
		execLabel.setText(EXEC_TITLE);
		executeButton = new Button(composite, SWT.CHECK);
		executeButton.setSelection(file.canRead());
		executeButton.setEnabled(false);
	}
	
	/**
	 * @see PreferencePage#createContents(Composite)
	 */
	protected Control createContents(Composite parent) {
		Composite composite = new Composite(parent, SWT.NONE);
		GridLayout layout = new GridLayout();
		composite.setLayout(layout);
		GridData data = new GridData(GridData.FILL);
		data.grabExcessHorizontalSpace = true;
		composite.setLayoutData(data);

		setSelectedFile();
		addFirstSection(composite);
		addSeparator(composite);
		addSecondSection(composite);
		
		return composite;
	}

	private Composite createDefaultComposite(Composite parent) {
		Composite composite = new Composite(parent, SWT.NULL);
		GridLayout layout = new GridLayout();
		layout.numColumns = 2;
		composite.setLayout(layout);

		GridData data = new GridData();
		data.verticalAlignment = GridData.FILL;
		data.horizontalAlignment = GridData.FILL;
		composite.setLayoutData(data);

		return composite;
	}

	protected void performDefaults() {
		// Populate the owner text field with the default value
		//ownerText.setText(DEFAULT_OWNER);
	}
	
	public boolean performOk() {
		// store the value in the owner text field
		try {
			file.setReadable(readButton.getSelection());
		} catch (SecurityException e) {
			log.error("Cannot set "+file.getAbsolutePath()+" as read only");
			return false;
		}
		return true;
	}

}