/*
    * Copyright (C) 2007-2012 Argeo GmbH
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *         http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.argeo.slc.client.ui.dist.editors;
  
  import javax.jcr.Node;
  import javax.jcr.RepositoryException;
  
  import org.argeo.slc.SlcException;
  import org.argeo.slc.SlcNames;
  import org.eclipse.swt.SWT;
  import org.eclipse.swt.layout.GridData;
  import org.eclipse.swt.layout.GridLayout;
  import org.eclipse.swt.widgets.Composite;
  import org.eclipse.swt.widgets.Text;
  import org.eclipse.ui.forms.IManagedForm;
  import org.eclipse.ui.forms.editor.FormEditor;
  import org.eclipse.ui.forms.editor.FormPage;
  import org.eclipse.ui.forms.widgets.FormToolkit;
  import org.eclipse.ui.forms.widgets.ScrolledForm;
  import org.eclipse.ui.forms.widgets.Section;
  
  /** Show the details for a given bundle. */
  public class ModularDistVersionDetailPage extends FormPage implements SlcNames {
  
  	final static String PAGE_ID = "ModularDistVersionDetailPage";
  
  	// Business Objects
  	private Node modularDistVersion;
  
  	// This page widgets
  	private FormToolkit tk;
  
  	public ModularDistVersionDetailPage(FormEditor formEditor, String title,
  			Node modularDistVersion) {
  		super(formEditor, PAGE_ID, title);
  		this.modularDistVersion = modularDistVersion;
  	}
  
  	@Override
  	protected void createFormContent(IManagedForm managedForm) {
  		// General settings for this page
  		ScrolledForm form = managedForm.getForm();
  		tk = managedForm.getToolkit();
  		Composite body = form.getBody();
  
  		GridLayout layout = new GridLayout(1, false);
  		layout.marginWidth = 5;
  		layout.marginRight = 15;
  		layout.verticalSpacing = 0;
  		body.setLayout(layout);
  		try {
  			form.setText(modularDistVersion.hasProperty(SLC_NAME) ? modularDistVersion
  					.getProperty(SLC_NAME).getString() : "");
  		} catch (RepositoryException re) {
  			throw new SlcException("Unable to get slc:name for node "
  					+ modularDistVersion, re);
  		}
  
  		// Main layout
  		Composite mavenSnipet = tk.createComposite(body);
  		mavenSnipet.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  		populateMavenSnippetPart(mavenSnipet);
  	}
  
  	private void populateMavenSnippetPart(Composite parent) {
  		GridLayout layout = new GridLayout(1, false);
  		layout.marginWidth = layout.horizontalSpacing = layout.horizontalSpacing = layout.marginHeight = 0;
  		parent.setLayout(layout);
  
  		Section section = tk.createSection(parent, Section.TITLE_BAR
  				| Section.DESCRIPTION);
  		section.setText("Maven");
  		section.setDescription("In order to rely on the versions defined by this distribution, "
  				+ "add the below tag to the dependency management of your parent pom.");
  		section.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  		Text snippetTxt = createMavenSnippet(section);
  		section.setClient(snippetTxt);
  	}
  
  	// /////////////////////
  	// HELPERS
  	/** Creates a text area with corresponding maven snippet */
  	private Text createMavenSnippet(Composite parent) {
  		Text mavenSnippet = new Text(parent, SWT.MULTI | SWT.WRAP);
  		GridData gd = new GridData(GridData.FILL_HORIZONTAL);
  		gd.grabExcessHorizontalSpace = true;
 		gd.heightHint = 100;
 		mavenSnippet.setLayoutData(gd);
 		mavenSnippet.setText(generateXmlSnippet());
 		mavenSnippet.setEditable(false);
 		return mavenSnippet;
 	}
 
 	private String generateXmlSnippet() {
 		try {
 			StringBuffer sb = new StringBuffer();
 			sb.append("<dependency>\n");
 			sb.append("\t<groupId>");
 			sb.append(modularDistVersion.getProperty(SLC_GROUP_ID).getString());
 			sb.append("</groupId>\n");
 			sb.append("\t<artifactId>");
 			sb.append(modularDistVersion.getProperty(SLC_ARTIFACT_ID)
 					.getString());
 			sb.append("</artifactId>\n");
 			sb.append("\t<version>");
 			sb.append(modularDistVersion.getProperty(SLC_ARTIFACT_VERSION)
 					.getString());
 			sb.append("</version>\n");
 			sb.append("\t<type>pom</type>\n");
 			sb.append("\t<scope>import</scope>\n");
 			sb.append("</dependency>");
 			return sb.toString();
 		} catch (RepositoryException re) {
 			throw new SlcException(
 					"unexpected error while generating maven snippet");
 		}
 	}
 }