using System;
using System.IO;
using System.Xml;

namespace xharness
{
	public class TodayExtensionTarget : UnifiedTarget
	{
		public string AppName { get; private set; }
		public string ExtensionName { get; private set; }

		public string TodayContainerGuid { get; private set; }
		public string TodayExtensionGuid { get; private set; }

		public string TodayContainerProjectPath { get; private set; }
		public string TodayExtensionProjectPath { get; private set; }

		public override string Suffix {
			get {
				return "-today";
			}
		}

		public override string ProjectFileSuffix {
			get {
				return "-today";
			}
		}

		void CreateTodayContainerProject ()
		{
			var csproj = new XmlDocument ();
			var suffix = "-today";
			csproj.LoadWithoutNetworkAccess (Path.Combine (Harness.TodayContainerTemplate, "TodayContainer.csproj"));
			csproj.SetOutputPath ("bin\\$(Platform)\\$(Configuration)" + suffix, false);
			csproj.SetIntermediateOutputPath ("obj\\$(Platform)\\$(Configuration)" + suffix);
			csproj.SetProjectReferenceValue ("TodayExtension.csproj", "Name", Path.GetFileNameWithoutExtension (TodayExtensionProjectPath));
			csproj.SetProjectReferenceValue ("TodayExtension.csproj", "Project", TodayExtensionGuid);
			csproj.SetProjectReferenceInclude ("TodayExtension.csproj", TodayExtensionProjectPath.Replace ('/', '\\'));
			csproj.FixCompileInclude ("Main.cs", Path.Combine (Harness.TodayContainerTemplate, "Main.cs").Replace ('/', '\\'));
			csproj.FixInfoPListInclude (suffix);
			TodayContainerGuid = "{" + Harness.NewStableGuid ().ToString ().ToUpper () + "}";
			csproj.SetProjectGuid (TodayContainerGuid);
			Harness.Save (csproj, TodayContainerProjectPath);

			XmlDocument info_plist = new XmlDocument ();
			var target_info_plist = Path.Combine (TargetDirectory, "Info-today.plist");
			info_plist.LoadWithoutNetworkAccess (Path.Combine (Harness.TodayContainerTemplate, "Info.plist"));
			info_plist.SetCFBundleIdentifier (BundleIdentifier);
			info_plist.SetCFBundleName (Name);
			info_plist.SetMinimumOSVersion ("6.0");
			Harness.Save (info_plist, target_info_plist);
		}

		void CreateTodayExtensionProject ()
		{
			var csproj = inputProject;
			var suffix = "-today-extension";
			csproj.SetProjectTypeGuids ("{FEACFBD2-3405-455C-9665-78FE426C6842};" + LanguageGuid);
			csproj.SetOutputPath ("bin\\$(Platform)\\$(Configuration)" + suffix);
			csproj.SetIntermediateOutputPath ("obj\\$(Platform)\\$(Configuration)" + suffix);
			csproj.SetImport (IsFSharp ? "$(MSBuildExtensionsPath)\\Xamarin\\iOS\\Xamarin.iOS.AppExtension.FSharp.targets" : "$(MSBuildExtensionsPath)\\Xamarin\\iOS\\Xamarin.iOS.AppExtension.CSharp.targets");
			csproj.FixInfoPListInclude (suffix);
			csproj.SetOutputType ("Library");
			csproj.AddAdditionalDefines ("XAMCORE_2_0;XAMCORE_3_0");
			var ext = IsFSharp ? "fs" : "cs";
			csproj.AddCompileInclude ("Main." + ext, Path.Combine (Harness.TodayExtensionTemplate, "Main." + ext));
			csproj.AddInterfaceDefinition (Path.Combine (Harness.TodayExtensionTemplate, "TodayView.storyboard").Replace ('/', '\\'));
			csproj.SetExtraLinkerDefs ("extra-linker-defs" + Suffix + ".xml");

			Harness.Save (csproj, TodayExtensionProjectPath);

			TodayExtensionGuid = csproj.GetProjectGuid ();

			XmlDocument info_plist = new XmlDocument ();
			var target_info_plist = Path.Combine (TargetDirectory, "Info-today-extension.plist");
			info_plist.LoadWithoutNetworkAccess (Path.Combine (TargetDirectory, "Info.plist"));
			BundleIdentifier = info_plist.GetCFBundleIdentifier () + "-today";
			info_plist.SetCFBundleIdentifier (BundleIdentifier + ".todayextension");
			info_plist.SetMinimumOSVersion ("8.0");
			info_plist.AddPListStringValue ("CFBundlePackageType", "XPC!");
			info_plist.AddPListKeyValuePair ("NSExtension", "dict", 
@"
        <key>NSExtensionMainStoryboard</key>
        <string>TodayView</string>
        <key>NSExtensionPointIdentifier</key>
        <string>com.apple.widget-extension</string>
    ");
			Harness.Save (info_plist, target_info_plist);
		}

		protected override string Imports {
			get {
				return IsFSharp ? "$(MSBuildExtensionsPath)\\Xamarin\\WatchOS\\Xamarin.WatchOS.FSharp.targets" : "$(MSBuildExtensionsPath)\\Xamarin\\WatchOS\\Xamarin.WatchOS.CSharp.targets";
			}
		}

		protected override void ExecuteInternal ()
		{
			ExtensionName = Name + " Today Extension";
			AppName = Name + " Today";

			switch (OutputType) {
			case "Exe":
				TodayExtensionProjectPath = Path.Combine (TargetDirectory, Path.GetFileNameWithoutExtension (TemplateProjectPath) + "-today-extension." + ProjectFileExtension);
				TodayContainerProjectPath = Path.Combine (TargetDirectory, Path.GetFileNameWithoutExtension (TemplateProjectPath) + "-today." + ProjectFileExtension);
				CreateTodayExtensionProject ();
				CreateTodayContainerProject ();
				break;
			case "Library":
				base.ExecuteInternal ();
				break;
			default:
				throw new Exception (string.Format ("Unknown OutputType: {0}", OutputType));
			}
		}
	}
}