/*******************************************************************************
 * Copyright (c) 2001, 2006 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.wst.wsdl.ui.internal.asd.properties.sections;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
import org.eclipse.wst.wsdl.ui.internal.WSDLEditorPlugin;
import org.eclipse.wst.wsdl.ui.internal.asd.Messages;
import org.eclipse.wst.wsdl.ui.internal.asd.facade.IImport;

public class ImportSection extends ASDAbstractSection
{
  protected Text namespaceText, prefixText, locationText;
  private String oldPrefixValue;
  Button button;
  IEditorPart editorPart;
  
	/**
	 * @see org.eclipse.wst.common.ui.properties.internal.provisional.ITabbedPropertySection#createControls(org.eclipse.swt.widgets.Composite, org.eclipse.wst.common.ui.properties.internal.provisional.TabbedPropertySheetWidgetFactory)
	 */
	public void createControls(Composite parent, TabbedPropertySheetWidgetFactory factory)
	{
		super.createControls(parent, factory);
		Composite composite = getWidgetFactory().createFlatFormComposite(parent);
		FormData data;
		
		namespaceText = getWidgetFactory().createText(composite, ""); //$NON-NLS-1$
		namespaceText.setEditable(false);
//		namespaceText.addListener(SWT.Modify, this);
		data = new FormData();
		data.left = new FormAttachment(0, 100);
		data.right = new FormAttachment(100, -rightMarginSpace - ITabbedPropertyConstants.HSPACE);
		data.top = new FormAttachment(0, 0);
		namespaceText.setLayoutData(data);
		
		CLabel namespaceLabel = getWidgetFactory().createCLabel(composite, Messages.getString("_UI_LABEL_NAMESPACE")); //$NON-NLS-1$
		data = new FormData();
		data.left = new FormAttachment(0, 0);
		data.right = new FormAttachment(namespaceText, -ITabbedPropertyConstants.HSPACE);
		data.top = new FormAttachment(namespaceText, 0, SWT.CENTER);
		namespaceLabel.setLayoutData(data);
		
		prefixText = getWidgetFactory().createText(composite, ""); //$NON-NLS-1$
//		prefixText.setEditable(false);
		prefixText.addListener(SWT.Modify, this);
		data = new FormData();
		data.left = new FormAttachment(0, 100);
		data.right = new FormAttachment(100, -rightMarginSpace - ITabbedPropertyConstants.HSPACE);
		data.top = new FormAttachment(namespaceText, +ITabbedPropertyConstants.VSPACE);
		prefixText.setLayoutData(data);
		
		CLabel prefixLabel = getWidgetFactory().createCLabel(composite, Messages.getString("_UI_LABEL_PREFIX")); //$NON-NLS-1$
		data = new FormData();
		data.left = new FormAttachment(0, 0);
		data.right = new FormAttachment(prefixText, -ITabbedPropertyConstants.HSPACE);
		data.top = new FormAttachment(prefixText, 0, SWT.CENTER);
		prefixLabel.setLayoutData(data);
		
		locationText = getWidgetFactory().createText(composite, ""); //$NON-NLS-1$
		locationText.setEditable(false);
//		locationText.addListener(SWT.Modify, this);
		
		CLabel locationLabel = getWidgetFactory().createCLabel(composite, Messages.getString("_UI_LABEL_LOCATION")); //$NON-NLS-1$
		data = new FormData();
		data.left = new FormAttachment(0, 0);
		data.right = new FormAttachment(locationText, -ITabbedPropertyConstants.HSPACE);
		data.top = new FormAttachment(locationText, 0, SWT.CENTER);
		locationLabel.setLayoutData(data);
		
		button = getWidgetFactory().createButton(composite, "", SWT.PUSH); //$NON-NLS-1$
		button.setImage(WSDLEditorPlugin.getInstance().getImage("icons/browsebutton.gif")); //$NON-NLS-1$
		
		button.addSelectionListener(this);
		data = new FormData();
		data.left = new FormAttachment(100, -rightMarginSpace + 2);
		data.right = new FormAttachment(100,0);
		data.top = new FormAttachment(locationText, 0, SWT.CENTER);
		button.setLayoutData(data);
		
		data = new FormData();
		data.left = new FormAttachment(0, 100);
		data.right = new FormAttachment(button, 0);
		data.top = new FormAttachment(prefixText, +ITabbedPropertyConstants.VSPACE);
		locationText.setLayoutData(data);
	}

	/*
	 * @see org.eclipse.wst.common.ui.properties.internal.provisional.view.ITabbedPropertySection#refresh()
	 */
	public void refresh()
	{
		setListenerEnabled(false);  
		Object obj = getModel();
		boolean refreshPrefixText = true;
		boolean refreshLocationText = true;
		boolean refreshNamespaceText = true;
		if (prefixText.isFocusControl())
		{
			refreshPrefixText = false;
		}
		if (locationText.isFocusControl())
		{
			refreshLocationText = false;
		}
		if (namespaceText.isFocusControl())
		{
			refreshNamespaceText = false;
		}
		
		if (refreshPrefixText)
		{
			prefixText.setText(""); //$NON-NLS-1$
		}
		if (refreshLocationText)
		{
			locationText.setText(""); //$NON-NLS-1$
		}
		if (refreshNamespaceText)
		{
			namespaceText.setText(""); //$NON-NLS-1$
		}
		if (obj instanceof IImport)
		{
			IImport theImport = (IImport) obj;
			if (refreshLocationText)
			{
				String locationValue = theImport.getLocation(); 
				locationText.setText(locationValue != null ? locationValue : ""); //$NON-NLS-1$
			}
			
			String namespaceValue = theImport.getNamespace();
			if (refreshNamespaceText)
			{
				namespaceText.setText(namespaceValue != null ? namespaceValue : ""); //$NON-NLS-1$
			}
			
			if (refreshPrefixText)
			{
				String prefix = theImport.getNamespacePrefix();
				prefixText.setText(prefix != null ? prefix : ""); //$NON-NLS-1$
			}
		}
		oldPrefixValue = prefixText.getText();
		setListenerEnabled(true);
	}
	
	public void doHandleEvent(Event event) {
		if (event.widget == prefixText && locationText.getText().length() > 0 && namespaceText.getText().length() > 0) {
			/*
	    	Object input = getElement();
	        Import importObj = (Import)input;
//	        org.w3c.dom.Element importElement = WSDLEditorUtil.getInstance().getElementForObject(importObj);
	        Map namespacesMap = importObj.getEnclosingDefinition().getNamespaces();

	        if (namespacesMap.containsKey(prefixText.getText())) {
	        	// We should add error messages.........
	 //           setErrorMessage(XSDEditorPlugin.getXSDString("_ERROR_LABEL_PREFIX_EXISTS"));
	        }
	        else {
	            Element definitionElement = importObj.getEnclosingDefinition().getElement();
	            definitionElement.removeAttribute("xmlns:"+oldPrefixValue);
	            definitionElement.setAttribute("xmlns:" + prefixText.getText(), namespaceText.getText());

//	            clearErrorMessage();
	            oldPrefixValue = prefixText.getText();
	        }
			 */
		}
	}
	
	public void widgetSelected(SelectionEvent e)
	{
		if (e.widget == button)
		{
			/*
		  Object input = getElement();
		  
		  WSDLEditor editor = (WSDLEditor)editorPart;
		  IFile currentWSDLFile = ((IFileEditorInput)editor.getEditorInput()).getFile();
		  
		  SelectSingleFileDialog dialog = new SelectSingleFileDialog(WSDLEditorPlugin.getShell(), null, true);
		  String [] filters = { "xsd", "wsdl" }; //$NON-NLS-1$
		  IFile [] excludedFiles = { currentWSDLFile };
		  
		  dialog.addFilterExtensions(filters, excludedFiles);
		  dialog.create();
		  dialog.getShell().setText(WSDLEditorPlugin.getWSDLString("_UI_TITLE_SELECT")); //$NON-NLS-1$
		  dialog.setTitle(WSDLEditorPlugin.getWSDLString("_UI_TITLE_SELECT_FILE")); //$NON-NLS-1$
		  dialog.setMessage(WSDLEditorPlugin.getWSDLString("_UI_DESCRIPTION_SELECT_WSDL_OR_XSD")); //$NON-NLS-1$
		  int rc = dialog.open();
		  if (rc == IDialogConstants.OK_ID)
		  {
			  IFile selectedFile = dialog.getFile();
			  
			  //if (selectedFile.getLocation().toOSString().equals(currentWSDLFile.getLocation().toOSString()))
			  //{
			  //  System.out.println("SAME FILE:" + currentWSDLFile.getLocation());
			  //}
			  
			  String location = ComponentReferenceUtil.computeRelativeURI(selectedFile, currentWSDLFile, true);
			  
			  Import importObj = (Import)input;
			  org.w3c.dom.Element importElement = WSDLEditorUtil.getInstance().getElementForObject(importObj);
			  Definition definition = importObj.getEnclosingDefinition();
			  org.w3c.dom.Element definitionElement = WSDLEditorUtil.getInstance().getElementForObject(definition);
			  
			  String importTargetNamespace = ""; //$NON-NLS-1$
			  String prefix = prefixText.getText();
			  String uniquePrefix = ""; //$NON-NLS-1$
			  
			  URI uri = URI.createPlatformResourceURI(selectedFile.getFullPath().toString());      
			  
			  // note that the getTargetNamespaceURIForSchema works for both schema and wsdl files
			  // I should change the name of this convenience method
			  importTargetNamespace =  XMLQuickScan.getTargetNamespaceURIForSchema(uri.toString());
			  
			  if (prefix.trim().equals("")) //$NON-NLS-1$
			  {
				  uniquePrefix = getUniquePrefix(definition, uri.fileExtension());
			  }
			  else
			  {
				  uniquePrefix = prefix; 
			  }
			  
			  
			  if (importTargetNamespace == null ||
					  (importTargetNamespace != null && importTargetNamespace.trim().length() == 0))
			  {
				  return;  // what to do with no namespace docs?
			  }
			  
			  importObj.setLocationURI(location);
			  importObj.setNamespaceURI(importTargetNamespace);
			  ((ImportImpl) importObj).importDefinitionOrSchema();
			  
			  definitionElement.setAttribute("xmlns:" + uniquePrefix, importTargetNamespace); //$NON-NLS-1$
			  
			  namespaceText.setText(importTargetNamespace);
			  locationText.setText(location);
			  prefixText.setText(uniquePrefix);
		  }
			 */
			refresh();
		}
	}
	
	/*
  private String getUniquePrefix(Definition definition, String initPrefix)
  {
    String uniquePrefix;
    Map map = definition.getNamespaces();

    if (definition.getNamespace(initPrefix) == null)
    {
      uniquePrefix = initPrefix;
    }
    else // if used, then try to create a unique one
    {
      String tempPrefix = initPrefix;
      int i = 1;
      while(map.containsKey(tempPrefix + i))
      {
        i++;
      }
      uniquePrefix = tempPrefix + i;
    }
    return uniquePrefix;    
  } 
	 */
	
	public void setEditorPart(IEditorPart editorPart)
	{
		this.editorPart = editorPart;
	}

}