//
// DotNetCoreProjectTemplateWizardPage.cs
//
// Author:
//       Matt Ward <matt.ward@xamarin.com>
//
// Copyright (c) 2017 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.Collections.Generic;
using System.Linq;
using MonoDevelop.Core;
using MonoDevelop.Core.Assemblies;
using MonoDevelop.DotNetCore.Gui;
using MonoDevelop.Ide.Templates;
using MonoDevelop.Projects;

namespace MonoDevelop.DotNetCore.Templating
{
	class DotNetCoreProjectTemplateWizardPage : WizardPage
	{
		readonly DotNetCoreProjectTemplateWizard wizard;
		GtkDotNetCoreProjectTemplateWizardPageWidget view;
		List<TargetFramework> targetFrameworks;
		IEnumerable<string> parameters;

		public DotNetCoreProjectTemplateWizardPage (
			DotNetCoreProjectTemplateWizard wizard,
			List<TargetFramework> targetFrameworks)
		{
			this.wizard = wizard;
			this.targetFrameworks = targetFrameworks;
			parameters = CreateTargetFrameworksParameters ();

			if (targetFrameworks.Any ())
				SelectedTargetFrameworkIndex = 0;
			else
				CanMoveToNextPage = false;
		}

		IEnumerable<string> CreateTargetFrameworksParameters ()
		{
			for (var i = 0; i < targetFrameworks.Count; i++) {
				var parameter = targetFrameworks [i].GetParameterName ();
				if (!string.IsNullOrEmpty (parameter))
					yield return parameter;
			}
		}

		public override string Title {
			get {
				string templateName = wizard.Parameters ["TemplateName"];
				return GettextCatalog.GetString ("Configure your new {0}", templateName);
			}
		}

		protected override object CreateNativeWidget<T> ()
		{
			if (view == null)
				view = new GtkDotNetCoreProjectTemplateWizardPageWidget (this);

			return view;
		}

		protected override void Dispose (bool disposing)
		{
			if (view != null) {
				view.Dispose ();
				view = null;
			}
		}

		public bool ShowMultiplatformLibraryImage { get; private set; }

		public IList<TargetFramework> TargetFrameworks => targetFrameworks;

		int selectedTargetFrameworkIndex;

		public int SelectedTargetFrameworkIndex {
			get { return selectedTargetFrameworkIndex; }
			set {
				selectedTargetFrameworkIndex = value;
				UpdateTargetFrameworkParameters ();
			}
		}
			
		void UpdateTargetFrameworkParameters ()
		{
			var framework = targetFrameworks [selectedTargetFrameworkIndex];

			wizard.Parameters ["Framework"] = framework.Id.ShortName;

			foreach (var param in parameters) {
				wizard.Parameters [param] = "false";
			}

			var parameter = framework.GetParameterName ();
			if (!string.IsNullOrEmpty (parameter))
				wizard.Parameters [parameter] = "true";
		}
	}
}