/**
 * <copyright>
 * </copyright>
 *
 * $Id$
 */
package org.yakindu.base.types.provider;

import java.util.Collection;
import java.util.List;

import org.eclipse.emf.common.notify.AdapterFactory;
import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.emf.edit.provider.ViewerNotification;
import org.yakindu.base.types.Operation;
import org.yakindu.base.types.Parameter;
import org.yakindu.base.types.TypesFactory;
import org.yakindu.base.types.TypesPackage;

/**
 * This is the item provider adapter for a {@link org.yakindu.base.types.Operation} object.
 * <!-- begin-user-doc --> <!--
 * end-user-doc -->
 * @generated
 */
public class OperationItemProvider extends DeclarationItemProvider {
	/**
	 * This constructs an instance from a factory and a notifier. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	public OperationItemProvider(AdapterFactory adapterFactory) {
		super(adapterFactory);
	}

	/**
	 * This returns the property descriptors for the adapted class. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	@Override
	public List<IItemPropertyDescriptor> getPropertyDescriptors(Object object) {
		if (itemPropertyDescriptors == null) {
			super.getPropertyDescriptors(object);

		}
		return itemPropertyDescriptors;
	}

	/**
	 * This specifies how to implement {@link #getChildren} and is used to deduce an appropriate feature for an
	 * {@link org.eclipse.emf.edit.command.AddCommand}, {@link org.eclipse.emf.edit.command.RemoveCommand} or
	 * {@link org.eclipse.emf.edit.command.MoveCommand} in {@link #createCommand}.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Collection<? extends EStructuralFeature> getChildrenFeatures(Object object) {
		if (childrenFeatures == null) {
			super.getChildrenFeatures(object);
			childrenFeatures.add(TypesPackage.Literals.OPERATION__PARAMETERS);
		}
		return childrenFeatures;
	}

	/**
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	protected EStructuralFeature getChildFeature(Object object, Object child) {
		// Check the type of the specified child object and return the proper feature to use for
		// adding (see {@link AddCommand}) it as a child.

		return super.getChildFeature(object, child);
	}

	/**
	 * This returns Operation.gif.
	 * <!-- begin-user-doc --> <!-- end-user-doc -->
	 * @generated
	 */
	@Override
	public Object getImage(Object object) {
		return overlayImage(object, getResourceLocator().getImage("full/obj16/Operation"));
	}

	/**
	 * @generated NOT
	 */
	@Override
	public String getText(Object object) {
		Operation operation = (Operation)object;
		StringBuilder builder = new StringBuilder(operation.getName());
		builder.append("(");
		EList<Parameter> parameters = operation.getParameters();
		for (Parameter parameter : parameters) {
			builder.append(parameter.getName());
			builder.append(" : " );
			builder.append(parameter.getType().getName());
		}
		builder.append(")");
		if(operation.getType() != null){
			builder.append(" : ");
			String name = operation.getType().getName();
			builder.append(name == null ? "void" : name);
		}
		return builder.toString();
	}

	/**
	 * This handles model notifications by calling {@link #updateChildren} to update any cached
	 * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
	 * <!-- begin-user-doc --> <!--
	 * end-user-doc -->
	 * @generated
	 */
	@Override
	public void notifyChanged(Notification notification) {
		updateChildren(notification);

		switch (notification.getFeatureID(Operation.class)) {
			case TypesPackage.OPERATION__PARAMETERS:
				fireNotifyChanged(new ViewerNotification(notification, notification.getNotifier(), true, false));
				return;
		}
		super.notifyChanged(notification);
	}

	/**
	 * This adds {@link org.eclipse.emf.edit.command.CommandParameter}s
	 * describing the children that can be created under this object. <!--
	 * begin-user-doc --> <!-- end-user-doc -->
	 * 
	 * @generated
	 */
	@Override
	protected void collectNewChildDescriptors(Collection<Object> newChildDescriptors, Object object) {
		super.collectNewChildDescriptors(newChildDescriptors, object);

		newChildDescriptors.add
			(createChildParameter
				(TypesPackage.Literals.OPERATION__PARAMETERS,
				 TypesFactory.eINSTANCE.createParameter()));
	}

}
