//
// ProjectReferencesFromPackagesFolderNodeBuilderExtension.cs
//
// Author:
//       Matt Ward <matt.ward@xamarin.com>
//
// Copyright (c) 2014 Xamarin Inc. (http://xamarin.com)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using ICSharpCode.PackageManagement;
using MonoDevelop.Ide.Gui.Components;
using MonoDevelop.Projects;

namespace MonoDevelop.PackageManagement.NodeBuilders
{
	public class ProjectReferencesNodeBuilderExtension : NodeBuilderExtension
	{
		public override bool CanBuildNode (Type dataType)
		{
			return typeof(ProjectReferenceCollection).IsAssignableFrom (dataType);
		}

		public override bool HasChildNodes (ITreeBuilder builder, object dataObject)
		{
			return ProjectHasPackages (builder);
		}

		bool ProjectHasPackages (ITreeBuilder builder)
		{
			DotNetProject project = GetProject (builder);
			if (project != null) {
				return project.HasPackages ();
			}
			return false;
		}

		DotNetProject GetProject (ITreeBuilder builder)
		{
			return builder.GetParentDataItem (typeof(DotNetProject), false) as DotNetProject;
		}

		public override void BuildChildNodes (ITreeBuilder treeBuilder, object dataObject)
		{
			DotNetProject project = GetProject (treeBuilder);
			if (project != null) {
				var projectReferences = dataObject as ProjectReferenceCollection;
				var folderNode = new ProjectReferencesFromPackagesFolderNode (project, projectReferences);
				if (folderNode.AnyReferencesFromPackages ()) {
					treeBuilder.AddChild (folderNode);
				}
			}
		}
	}
}

