/*******************************************************************************
 * Copyright (c) 2000, 2017 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
 *
 *******************************************************************************/
package org.eclipse.dltk.internal.ui.search;

import org.eclipse.core.resources.IResource;
import org.eclipse.dltk.core.IModelElement;
import org.eclipse.dltk.core.ISourceModule;
import org.eclipse.dltk.core.ModelException;
import org.eclipse.dltk.internal.core.ExternalSourceModule;
import org.eclipse.dltk.ui.DLTKUIPlugin;
import org.eclipse.dltk.ui.ScriptElementLabels;
import org.eclipse.jface.viewers.IColorProvider;
import org.eclipse.swt.graphics.Image;

public class SortingLabelProvider extends SearchLabelProvider implements
		IColorProvider {
	public static final int SHOW_ELEMENT_CONTAINER = 1; // default
	public static final int SHOW_CONTAINER_ELEMENT = 2;
	public static final int SHOW_PATH = 3;

	public SortingLabelProvider(DLTKSearchResultPage page) {
		super(page);
	}

	@Override
	public Image getImage(Object element) {
		Image image = null;
		if (element instanceof IModelElement || element instanceof IResource)
			image = super.getImage(element);
		if (image != null)
			return image;
		return getParticipantImage(element);
	}

	@Override
	public final String getText(Object element) {
		return getLabelWithCounts(element, appendRalitivePath(element,
				internalGetText(element)));
	}

	private String appendRalitivePath(Object element, String internalGetText) {
		StringBuffer result = new StringBuffer(internalGetText);
		if (element instanceof IModelElement) {
			IModelElement modelElement = (IModelElement) element;
			try {
				String path = null;
				ISourceModule sm = (ISourceModule) modelElement
						.getAncestor(IModelElement.SOURCE_MODULE);
				if (sm instanceof ExternalSourceModule) {
					ExternalSourceModule esm = (ExternalSourceModule) sm;
					path = esm.getStorage().getFullPath().toString();
				} else {
					IResource resource = modelElement.getUnderlyingResource();
					path = resource.getFullPath().toString();
				}

				if (path != null) {
					result.append(" - ").append(path);
				}
			} catch (ModelException e) {
				DLTKUIPlugin.log(e);
			}
		}
		return result.toString();
	}

	private String internalGetText(Object o) {
		// if (o instanceof IImportDeclaration)
		// o= ((IImportDeclaration)o).getParent().getParent();

		String text = super.getText(o);
		if (text != null && (text.length() > 0))
			return text;
		return getParticipantText(o);
	}

	public void setOrder(int orderFlag) {
		long flags = DEFAULT_SEARCH_TEXTFLAGS;
		if (orderFlag == SHOW_ELEMENT_CONTAINER)
			flags |= ScriptElementLabels.F_POST_QUALIFIED
					| ScriptElementLabels.M_POST_QUALIFIED
					| ScriptElementLabels.I_POST_QUALIFIED
					| ScriptElementLabels.M_PARAMETER_TYPES
					| ScriptElementLabels.T_POST_QUALIFIED
					| ScriptElementLabels.D_POST_QUALIFIED
					| ScriptElementLabels.CF_POST_QUALIFIED
					| ScriptElementLabels.CU_POST_QUALIFIED;

		else if (orderFlag == SHOW_CONTAINER_ELEMENT)
			flags |= ScriptElementLabels.F_FULLY_QUALIFIED
					| ScriptElementLabels.M_FULLY_QUALIFIED
					| ScriptElementLabels.I_FULLY_QUALIFIED
					| ScriptElementLabels.M_PARAMETER_TYPES
					| ScriptElementLabels.T_FULLY_QUALIFIED
					| ScriptElementLabels.D_QUALIFIED
					| ScriptElementLabels.CF_QUALIFIED
					| ScriptElementLabels.CU_QUALIFIED;
		else if (orderFlag == SHOW_PATH) {
			flags |= ScriptElementLabels.F_FULLY_QUALIFIED
					| ScriptElementLabels.M_FULLY_QUALIFIED
					| ScriptElementLabels.I_FULLY_QUALIFIED
					| ScriptElementLabels.M_PARAMETER_TYPES
					| ScriptElementLabels.T_FULLY_QUALIFIED
					| ScriptElementLabels.D_QUALIFIED
					| ScriptElementLabels.CF_QUALIFIED
					| ScriptElementLabels.CU_QUALIFIED;
			flags |= ScriptElementLabels.PREPEND_ROOT_PATH;
		}
		setTextFlags(flags);
	}
}