/*******************************************************************************
 * Copyright (c) 2009, 2018 Red Hat, Inc.
 * 
 * This program and the accompanying materials are made
 * available under the terms of the Eclipse Public License 2.0
 * which is available at https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *    Elliott Baron <ebaron@redhat.com> - initial API and implementation
 *******************************************************************************/
package org.eclipse.linuxtools.internal.valgrind.cachegrind;

import java.text.DecimalFormat;

import org.eclipse.cdt.ui.CElementLabelProvider;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.debug.ui.IDebugUIConstants;
import org.eclipse.jface.viewers.CellLabelProvider;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.linuxtools.internal.valgrind.cachegrind.model.CachegrindFile;
import org.eclipse.linuxtools.internal.valgrind.cachegrind.model.CachegrindFunction;
import org.eclipse.linuxtools.internal.valgrind.cachegrind.model.CachegrindLine;
import org.eclipse.linuxtools.internal.valgrind.cachegrind.model.CachegrindOutput;
import org.eclipse.linuxtools.internal.valgrind.cachegrind.model.ICachegrindElement;
import org.eclipse.osgi.util.NLS;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.plugin.AbstractUIPlugin;

public class CachegrindLabelProvider extends CellLabelProvider {

    private static final String NAME_NOT_FOUND_SYMBOL = "???"; //$NON-NLS-1$

    protected CElementLabelProvider cLabelProvider = new CElementLabelProvider(CElementLabelProvider.SHOW_SMALL_ICONS | CElementLabelProvider.SHOW_PARAMETERS | CElementLabelProvider.SHOW_RETURN_TYPE);

    protected DecimalFormat df = new DecimalFormat("#,##0"); //$NON-NLS-1$

    private static final Image FUNC_IMG = AbstractUIPlugin.imageDescriptorFromPlugin(CachegrindPlugin.PLUGIN_ID, "icons/function_obj.gif").createImage(); //$NON-NLS-1$

    @Override
    public void update(ViewerCell cell) {
        ICachegrindElement element = ((ICachegrindElement) cell.getElement());
        int index = cell.getColumnIndex();

        if (index == 0) {
            if (element instanceof CachegrindFile) {
                // Try to use the CElementLabelProvider
                IAdaptable model = ((CachegrindFile) element).getModel();
                if (model != null) {
                    cell.setText(cLabelProvider.getText(model));
                    cell.setImage(cLabelProvider.getImage(model));
                } else { // Fall back
                    String name = ((CachegrindFile) element).getName();
                    cell.setText(name);
                    cell.setImage(PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJ_FILE));
                }
            } else if (element instanceof CachegrindFunction) {
                // Try to use the CElementLabelProvider
                IAdaptable model = ((CachegrindFunction) element).getModel();
                if (model != null) {
                    cell.setText(cLabelProvider.getText(model));
                    cell.setImage(cLabelProvider.getImage(model));
                } else { // Fall back
                    String name = ((CachegrindFunction) element).getName();
                    cell.setText(name);
                    cell.setImage(FUNC_IMG);
                }
            } else if (element instanceof CachegrindLine) {
                cell.setText(NLS.bind(Messages.getString("CachegrindViewPart.line"), ((CachegrindLine) element).getLine())); //$NON-NLS-1$
                cell.setImage(DebugUITools.getImage(IDebugUIConstants.IMG_OBJS_INSTRUCTION_POINTER_TOP));
            } else if (element instanceof CachegrindOutput) {
                cell.setText(NLS.bind(Messages.getString("CachegrindViewPart.Total_PID"), ((CachegrindOutput) element).getPid())); //$NON-NLS-1$
                cell.setImage(DebugUITools.getImage(IDebugUIConstants.IMG_OBJS_REGISTER));
            }
        } else if (element instanceof CachegrindFunction) {
            cell.setText(df.format(((CachegrindFunction) element).getTotals()[index - 1]));
        } else if (element instanceof CachegrindLine) {
            cell.setText(df.format(((CachegrindLine) element).getValues()[index - 1]));
        } else if (element instanceof CachegrindOutput) {
            cell.setText(df.format(((CachegrindOutput) element).getSummary()[index - 1]));
        }
    }

    public CElementLabelProvider getCLabelProvider() {
        return cLabelProvider;
    }

    @Override
    public String getToolTipText(Object element) {
        String tooltip = null;
        if(element instanceof CachegrindFile){
            if(((CachegrindFile)element).getName().contains(NAME_NOT_FOUND_SYMBOL)){
                tooltip = Messages.getString("CachegrindViewPart.Tooltip_no_debug_info"); //$NON-NLS-1$
            }
        }

        if(element instanceof CachegrindFunction){
            if(((CachegrindFunction)element).getName().contains(NAME_NOT_FOUND_SYMBOL)){
                tooltip = Messages.getString("CachegrindViewPart.Tooltip_no_debug_info"); //$NON-NLS-1$
            }
        }
        return tooltip;
    }
}