//
// ProjectReferenceNodeBuilder.cs
//
// Author:
//   Lluis Sanchez Gual
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.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 System.IO;
using System.Collections;
using System.Collections.Generic;

using MonoDevelop.Projects;
using MonoDevelop.Core;
using MonoDevelop.Ide.Commands;
using MonoDevelop.Ide.Gui;
using MonoDevelop.Components.Commands;
using MonoDevelop.Ide.Gui.Components;
using MonoDevelop.Ide.Tasks;

namespace MonoDevelop.Ide.Gui.Pads.ProjectPad
{
	class ProjectReferenceNodeBuilder: TypeNodeBuilder
	{
		public override Type NodeDataType {
			get { return typeof(ProjectReference); }
		}
		
		public override Type CommandHandlerType {
			get { return typeof(ProjectReferenceNodeCommandHandler); }
		}

		public override bool UseReferenceEquality {
			get {
				// ProjectReference is not immutable, so we can't rely on
				// object equality for comparing instances in the tree.
				// We have to use reference equality
				return true;
			}
		}
		
		public override string GetNodeName (ITreeNavigator thisNode, object dataObject)
		{
			return ((ProjectReference)dataObject).Reference;
		}
		
		public override void BuildNode (ITreeBuilder treeBuilder, object dataObject, NodeInfo nodeInfo)
		{
			ProjectReference pref = (ProjectReference) dataObject;
			
			switch (pref.ReferenceType) {
			case ReferenceType.Project:
				nodeInfo.Label = pref.Reference;
				nodeInfo.Icon = Context.GetIcon ("md-reference-project");
				break;
			case ReferenceType.Assembly:
				nodeInfo.Label = Path.GetFileName(pref.Reference);
				nodeInfo.Icon = Context.GetIcon ("md-reference-folder");
				break;
			case ReferenceType.Package:
				nodeInfo.Label = pref.Reference.Split(',')[0];
				nodeInfo.Icon = Context.GetIcon ("md-reference-package");
				break;
			default:
				nodeInfo.Label = pref.Reference;
				nodeInfo.Icon = Context.GetIcon (Stock.Reference);
				break;
			}
			
			nodeInfo.Label = GLib.Markup.EscapeText (nodeInfo.Label);

			if (!pref.IsValid) {
				nodeInfo.StatusSeverity = TaskSeverity.Error;
				nodeInfo.DisabledStyle = true;
				nodeInfo.StatusMessage = pref.ValidationErrorMessage;
			}
		}
		
		public override void OnNodeAdded (object dataObject)
		{
			ProjectReference pref = (ProjectReference) dataObject;
			pref.StatusChanged += ReferenceStatusChanged;
		}
		
		public override void OnNodeRemoved (object dataObject)
		{
			ProjectReference pref = (ProjectReference) dataObject;
			pref.StatusChanged -= ReferenceStatusChanged;
		}

		void ReferenceStatusChanged (object sender, EventArgs e)
		{
			ITreeBuilder tb = Context.GetTreeBuilder (sender);
			if (tb != null)
				tb.UpdateAll ();
		}
	}
	
	class ProjectReferenceNodeCommandHandler: NodeCommandHandler
	{
		public override void ActivateItem ()
		{
			ProjectReference pref = CurrentNode.DataItem as ProjectReference;
			if (pref != null) {
				foreach (string fileName in pref.GetReferencedFileNames (IdeApp.Workspace.ActiveConfiguration)) {
					if (File.Exists (fileName))
						IdeApp.Workbench.OpenDocument (fileName, pref.OwnerProject);
				}
			}
		}
				
		public async override void DeleteMultipleItems ()
		{
			Dictionary<Project,Project> projects = new Dictionary<Project,Project> ();
			foreach (ITreeNavigator nav in CurrentNodes) {
				ProjectReference pref = (ProjectReference) nav.DataItem;
				DotNetProject project = nav.GetParentDataItem (typeof(DotNetProject), false) as DotNetProject;
				project.References.Remove (pref);
				projects [project] = project;
			}
			foreach (Project p in projects.Values)
				await IdeApp.ProjectOperations.SaveAsync (p);
		}
		
		[CommandHandler (ProjectCommands.LocalCopyReference)]
		[AllowMultiSelection]
		public async void ChangeLocalReference ()
		{
			var projects = new Dictionary<Project,Project> ();
			ProjectReference firstRef = null;
			foreach (ITreeNavigator node in CurrentNodes) {
				var pref = (ProjectReference) node.DataItem;
				if (!pref.CanSetLocalCopy)
					continue;
				if (firstRef == null) {
					firstRef = pref;
					pref.LocalCopy = !pref.LocalCopy;
				} else
					pref.LocalCopy = firstRef.LocalCopy;
				var project = node.GetParentDataItem (typeof(Project), false) as Project;
				projects [project] = project;
			}
			foreach (Project p in projects.Values)
				await IdeApp.ProjectOperations.SaveAsync (p);
		}
		
		[CommandUpdateHandler (ProjectCommands.LocalCopyReference)]
		public void UpdateLocalReference (CommandInfo info)
		{
			ProjectReference lastRef = null;
			foreach (ITreeNavigator node in CurrentNodes) {
				var pref = (ProjectReference) node.DataItem;
				if (!pref.CanSetLocalCopy)
					info.Enabled = false;
				if (lastRef == null || lastRef.LocalCopy == pref.LocalCopy) {
					lastRef = pref;
					info.Checked = info.Enabled && pref.LocalCopy;
				} else {
					info.CheckedInconsistent = true;
				}
			}
		}
		
		[CommandHandler (ProjectCommands.SpecificAssemblyVersion)]
		[AllowMultiSelection]
		public async void RequireSpecificAssemblyVersion ()
		{
			var projects = new Dictionary<Project,Project> ();
			ProjectReference firstRef = null;
			foreach (ITreeNavigator node in CurrentNodes) {
				var pref = (ProjectReference) node.DataItem;
				if (!pref.CanSetSpecificVersion)
					continue;
				if (firstRef == null) {
					firstRef = pref;
					pref.SpecificVersion = !pref.SpecificVersion;
				} else
					pref.SpecificVersion = firstRef.SpecificVersion;
				var project = node.GetParentDataItem (typeof(Project), false) as Project;
				projects [project] = project;
			}
			foreach (Project p in projects.Values)
				await IdeApp.ProjectOperations.SaveAsync (p);
		}
		
		[CommandUpdateHandler (ProjectCommands.SpecificAssemblyVersion)]
		public void UpdateRequireSpecificAssemblyVersion (CommandInfo info)
		{
			ProjectReference lastRef = null;
			foreach (ITreeNavigator node in CurrentNodes) {
				var pref = (ProjectReference) node.DataItem;
				if (!pref.CanSetSpecificVersion)
					info.Enabled = false;
				if (lastRef == null || lastRef.SpecificVersion == pref.SpecificVersion) {
					lastRef = pref;
					info.Checked = pref.SpecificVersion;
				} else {
					info.CheckedInconsistent = true;
				}
			}
		}

		[CommandHandler (FileCommands.ShowProperties)]
		public void OnShowProperties ()
		{
			IdeApp.Workbench.Pads.PropertyPad.BringToFront (true);
		}

		public override DragOperation CanDragNode ()
		{
			return DragOperation.Copy;
		}
	}
}