package org.argeo.people.ui.providers;
   
   import javax.jcr.Node;
   import javax.jcr.Property;
   import javax.jcr.RepositoryException;
   
   import org.apache.commons.logging.Log;
   import org.apache.commons.logging.LogFactory;
   import org.argeo.connect.ui.ConnectUiConstants;
  import org.argeo.connect.util.ConnectJcrUtils;
  import org.argeo.connect.util.ConnectUtils;
  import org.argeo.eclipse.ui.EclipseUiUtils;
  import org.argeo.people.PeopleException;
  import org.argeo.people.PeopleNames;
  import org.eclipse.jface.viewers.ColumnLabelProvider;
  
  /**
   * Provide a label provider for group members
   */
  public class GroupLabelProvider extends ColumnLabelProvider implements PeopleNames {
  	private final static Log log = LogFactory.getLog(GroupLabelProvider.class);
  
  	private static final long serialVersionUID = 9156065705311297011L;
  	private final int listType;
  
  	public GroupLabelProvider(int listType) {
  		this.listType = listType;
  	}
  
  	@Override
  	public String getText(Object element) {
  		Node entity = (Node) element;
  		String result;
  		switch (listType) {
  		case ConnectUiConstants.LIST_TYPE_OVERVIEW_TITLE:
  			result = getOverviewTitle(entity);
  			break;
  		// case ConnectUiConstants.LIST_TYPE_OVERVIEW_DETAIL:
  		// result = getOverviewDetails(entity);
  		// break;
  		case ConnectUiConstants.LIST_TYPE_SMALL:
  			result = getOneLineLabel(entity);
  			break;
  		// case ConnectUiConstants.LIST_TYPE_MEDIUM:
  		// result = getOverviewForList(entity, false);
  		// break;
  		default:
  			throw new PeopleException("Undefined list type - Unable to provide text for group");
  		}
  		return ConnectUtils.replaceAmpersand(result);
  	}
  
  	private String getOverviewTitle(Node entity) {
  		try {
  			StringBuilder builder = new StringBuilder();
  			builder.append("<span style='font-size:15px;'>");
  			// first line
  			builder.append("<b><big> ");
  			builder.append(ConnectJcrUtils.get(entity, Property.JCR_TITLE));
  			builder.append("</big></b>");
  
  			if (entity.hasNode(PEOPLE_MEMBERS)) { // Nb of members
  
  				long start = System.currentTimeMillis();
  				int membersNb = -1; // countMembers(entity.getNode(PEOPLE_MEMBERS),
  									// 0);
  				long end = System.currentTimeMillis();
  
  				if (log.isDebugEnabled())
  					log.debug("Counted " + membersNb + " members in " + (end - start) + " ms");
  
  				builder.append("<i>(").append(membersNb).append(" members)</i>");
  			}
  			// Description
  			String desc = ConnectJcrUtils.get(entity, Property.JCR_DESCRIPTION);
  			if (EclipseUiUtils.notEmpty(desc))
  				builder.append("<br />").append(desc);
  			builder.append("</span>");
  			return builder.toString();
  		} catch (RepositoryException e) {
  			throw new PeopleException("Unable to get text for link", e);
  		}
  
  	}
  
  	/** recursivly count members in the sub tree */
  	// private int countMembers(Node node, int currCount) {
  	// try {
  	// NodeIterator ni = node.getNodes();
  	// while (ni.hasNext()) {
  	// currCount = countMembers(ni.nextNode(), currCount);
  	// }
  	// if (ConnectJcrUtils.isNodeType(node,
  	// PeopleTypes.PEOPLE_MAILING_LIST_ITEM)) {
  	// currCount++;
  	// }
  	// return currCount;
  	// } catch (RepositoryException re) {
  	// throw new PeopleException("Unable to count members for node "
 	// + node, re);
 	// }
 	// }
 
 	private String getOneLineLabel(Node entity) {
 		// try {
 		StringBuilder builder = new StringBuilder();
 		builder.append("<b>");
 		builder.append(ConnectJcrUtils.get(entity, Property.JCR_TITLE));
 		builder.append("</b>");
 
 		// Nb of members
 		// if (entity.hasNode(PEOPLE_MEMBERS)) {
 		// int membersNb = countMembers(entity.getNode(PEOPLE_MEMBERS), 0);
 		// builder.append("<i>(").append(membersNb)
 		// .append(" members)</i>");
 		// }
 		return builder.toString();
 		// } catch (RepositoryException e) {
 		// throw new PeopleException("Unable to get small text for link", e);
 		// }
 
 	}
 
 }