/*
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * 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.jbpm.eclipse.action;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.jbpm.eclipse.JBPMEclipsePlugin;

public class ImportWorkItemsAction implements IObjectActionDelegate {

    private IJavaProject project;
    
    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
    }

    public void run(IAction action) {
        if (project != null && project.exists()) {
            try {
                importWorkItems(project, null);
            } catch (Throwable t) {
                JBPMEclipsePlugin.log(t);
            }
        }

    }

    public void selectionChanged(IAction action, ISelection selection) {
        if (selection instanceof IStructuredSelection) {
            IStructuredSelection structured = (IStructuredSelection) selection;
            if (structured.size() == 1) {
                Object element = structured.getFirstElement();
                if (element instanceof IJavaProject) {
                    project = (IJavaProject) element;
                } else if (element instanceof IProject) {
                    IJavaProject javaProject = JavaCore.create((IProject) element);
                    if (javaProject != null && javaProject.exists()) {
                        project = javaProject;
                    }
                }
            }
        }
    }

    public static void importWorkItems(IJavaProject project, IProgressMonitor monitor) throws CoreException {
        new ImportWorkItemsDialog(project, null).open();
    }
}