//------------------------------------------------------------------------------
// Copyright (c) 2005, 2006 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
//
// Contributors:
// IBM Corporation - initial implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.authoring.ui.forms;

import java.util.ArrayList;

import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
import org.eclipse.epf.authoring.ui.AuthoringUIResources;
import org.eclipse.epf.authoring.ui.AuthoringUIText;
import org.eclipse.epf.authoring.ui.filters.WorkProductFilter;
import org.eclipse.epf.library.edit.IFilter;
import org.eclipse.epf.library.edit.TngAdapterFactory;
import org.eclipse.epf.library.edit.command.IActionManager;
import org.eclipse.epf.library.edit.itemsfilter.FilterConstants;
import org.eclipse.epf.uma.Role;
import org.eclipse.epf.uma.UmaPackage;
import org.eclipse.epf.uma.util.AssociationHelper;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorSite;
import org.eclipse.ui.forms.IManagedForm;
import org.eclipse.ui.forms.editor.FormEditor;


/**
 * The Work Products page in the Role editor.
 * 
 * @author Shilpa Toraskar
 * @author Kelvin Low
 * @since 1.0
 */
public class RoleWorkProductsPage extends AssociationFormPage {

	private static final String FORM_PAGE_ID = "roleWorkProductsPage"; //$NON-NLS-1$

	private Role role;

	/**
	 * Creates a new instance.
	 */
	public RoleWorkProductsPage(FormEditor editor) {
		super(editor, FORM_PAGE_ID, AuthoringUIText.WORK_PRODUCTS_PAGE_TITLE);
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#init(org.eclipse.ui.IEditorSite, org.eclipse.ui.IEditorInput)
	 */
	public void init(IEditorSite site, IEditorInput input) {
		super.init(site, input);
		role = (Role) contentElement;
		setUseCategory3(false);
		setAllowChange1(true);
		setAllowChange2(true);
	}

	/**
	 * @see org.eclipse.ui.forms.editor.createFormContent(IManagedForm)
	 */
	protected void createFormContent(IManagedForm managedForm) {
		super.createFormContent(managedForm);
		ctrl_add2.setVisible(false);
		ctrl_remove2.setVisible(false);
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#initContentProviderSelected()
	 */
	protected void initContentProviderSelected() {
		contentProviderSelected = new AdapterFactoryContentProvider(
				TngAdapterFactory.INSTANCE
						.getNavigatorView_ComposedAdapterFactory()) {
			public Object[] getElements(Object object) {
				if (getProviderExtender().useContentProviderAPIs()) {
					return getProviderExtender().getElements(object, 1);
				}
				return ((Role) object).getResponsibleFor().toArray();
			}
		};
		viewer_selected.setContentProvider(contentProviderSelected);
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#addItemsToModel1(ArrayList)
	 */
	protected void addItemsToModel1(ArrayList addItems) {
		// Update the model.
		if(!addItems.isEmpty()) {
			getActionManager().doAction(IActionManager.ADD_MANY, role, UmaPackage.eINSTANCE.getRole_ResponsibleFor(), addItems, -1);
		}
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#removeItemsFromModel1(ArrayList)
	 */
	protected void removeItemsFromModel1(ArrayList rmItems) {
		// Update the model.
		if (!rmItems.isEmpty()) {
//			for (int i = 0; i < rmItems.size(); i++) {
//				LibraryManager.getInstance().setResponsibleRole(
//						getActionManager(), (WorkProduct) rmItems.get(i), null);
//			}
			
			getActionManager().doAction(IActionManager.REMOVE_MANY, role, UmaPackage.eINSTANCE.getRole_ResponsibleFor(), rmItems, -1);
		}
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#initContentProviderSelected2()
	 */
	protected void initContentProviderSelected2() {
		contentProviderSelected2 = new AdapterFactoryContentProvider(
				TngAdapterFactory.INSTANCE
						.getNavigatorView_ComposedAdapterFactory()) {
			public Object[] getElements(Object object) {
				if (getProviderExtender().useContentProviderAPIs()) {
					return getProviderExtender().getElements(object, 2);
				}
				return AssociationHelper.getModifiedWorkProducts((Role) object)
						.toArray();
			}
		};
		viewer_selected2.setContentProvider(contentProviderSelected2);
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.DescriptionFormPage#getContentElement()
	 */
	protected Object getContentElement() {
		return role;
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.DescriptionFormPage#getTabString()
	 */
	protected String getTabString() {
		return FilterConstants.WORKPRODUCTS;
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.DescriptionFormPage#getFilter()
	 */
	protected IFilter getFilter() {
		return filter = new WorkProductFilter();
	}
	
	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#getMultipleSelectDescription(int)
	 */
	protected String getMultipleSelectDescription(int count) {
		return super.getMultipleSelectDescription(count, AuthoringUIResources.roleWorkProductsPage_multipleSelectDescription);
	}
	
	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#getSectionDescription()
	 */
	protected String getSectionDescription() {
		return AuthoringUIResources.roleWorkProductsPage_sectionDescription;
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#getSectionName()
	 */
	protected String getSectionName() {
		return AuthoringUIResources.roleWorkProductsPage_sectionName;
	}

	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#getSelectedLabel()
	 */
	protected String getSelectedLabel() {
		return AuthoringUIResources.roleWorkProductsPage_selectedLabel;
	}
	
	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#getSelectedLabel2()
	 */
	protected String getSelectedLabel2() {
		return AuthoringUIResources.roleWorkProductsPage_selectedLabel2;
	}
	
	/**
	 * @see org.eclipse.epf.authoring.ui.forms.AssociationFormPage#getSelectedLabel3()
	 */
	protected String getSelectedLabel3() {
		return null;
	}
	
	
	@Override
	public EReference getReference(int ix) {
		if (ix == 1) {
			return UmaPackage.eINSTANCE.getRole_ResponsibleFor();
		}
		if (ix == 2) {
			return UmaPackage.eINSTANCE.getRole_Modifies();
		}		
		return super.getReference(ix);
	}

}