using System.Collections.Immutable;
using System.Diagnostics;
using System.Linq;
using System.Reflection;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Threading;

using Autodesk.Revit.Attributes;
using Autodesk.Revit.DB;
using Autodesk.Revit.UI;

using Nice3point.Revit.Toolkit.External;

using RoslynPad.Roslyn;

using Szmedi.AIScriptRunner.Assists;
using Szmedi.AIScriptRunner.RvScript;
using Szmedi.AIScriptRunner.ViewModels;
using Szmedi.AIScriptRunner.Views;

namespace Szmedi.AIScriptRunner.Commands
{
    [Transaction(TransactionMode.Manual)]
    [Regeneration(RegenerationOption.Manual)]
    public class ScriptRunnerCmd : IExternalCommand
    {
        //public override void Execute()
        //{
        //    AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;

        //    if (WinIntPtr.IsVisible("C#脚本执行"))
        //    {
        //        WinIntPtr.ShowAndActive("C#脚本执行");
        //    }
        //    else
        //    {
        //        try
        //        {
        //            ShowNoModel();
        //        }
        //        catch (Exception ex)
        //        {
        //            MessageBox.Show(ex.ToString(), "错误");
        //        }
        //    }
        //}
        private void ShowNoModel()
        {
            var handler = new ScriptRunnerHandler();
            var externalEvent = ExternalEvent.Create(handler);
            var assembliesToRef = new List<Assembly>
                    {
                        typeof(object).Assembly, //mscorlib
                        //typeof(Uri).Assembly,             // System
                        //typeof(Enumerable).Assembly,      // System.Core
                        //Assembly.Load("Microsoft.CodeAnalysis.Workspaces"),
                        //Assembly.Load("System.Numerics.Vectors"),
                        typeof(UIApplication).Assembly,
                        typeof(Document).Assembly,
                        Assembly.Load("RoslynPad.Roslyn.Windows"),
                        Assembly.Load("RoslynPad.Editor.Windows"),

                    };
            var roslynHost = new RevitRoslynHost(
                assembliesToRef,
                RoslynHostReferences.NamespaceDefault
                    .With(
                        typeNamespaceImports: new[]
                            {
                                typeof(UIApplication),
                                typeof(Document),
                                typeof(Dictionary<,>),
                                typeof(Enumerable),
                                typeof(ScriptGlobals)
                            }),
                ImmutableArray.Create("CS1701", "CS1702", "CS0518"));

            var document = new RoslynEditorViewModel(roslynHost, externalEvent, handler);
            try
            {
                var scriptEditor = new RoslynEditor(document);
                scriptEditor.WindowStartupLocation = WindowStartupLocation.CenterScreen;
                _ = new WindowInteropHelper(scriptEditor)
                {
                    Owner = Process.GetCurrentProcess().MainWindowHandle
                };
                handler.Progress = new Progress<string>(message => document.Result += $"{message}{Environment.NewLine}");
                scriptEditor.Show();
            }
            catch (Exception ex)
            {
                MessageBox.Show($"{ex.Message}\r\n{ex.StackTrace}");
            }
            finally
            {
                //因为是非模态窗口，所以会直接执行取消订阅。
                //如果运行过程中会报错，会导致在运行过程中出现未加载程序集时，
                //无法加载程序集，需要在窗口关闭后才执行移除订阅
                //AppDomain.CurrentDomain.AssemblyResolve -= CurrentDomain_AssemblyResolve;
            }
        }


        //private void OnInteraction(object sender, RoutedEventArgs e)
        //{
        //    if (!_auth.IsAuthenticated)
        //    {
        //        e.Handled = true;
        //        PromptLogin();
        //    }

        //}
        public static Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
        {
            var dllName = args.Name.Split(',')[0];
            //Directory.GetFiles(GlobalVariables.DirAssembly, "*.dll", SearchOption.AllDirectories).ToList().ForEach(f =>
            //    {
            //        if (Path.GetFileNameWithoutExtension(f) == dllName)
            //        {
            //            Assembly.LoadFrom(f);
            //        }
            //    });
            var collection = Directory.GetFiles(GlobalVariables.DirAssembly, "*.dll", SearchOption.AllDirectories);
            foreach (var f in collection)
            {
                if (Path.GetFileNameWithoutExtension(f) == dllName)
                {
                    return Assembly.LoadFrom(f);
                }
            }
            return null;
            //if (args.Name.StartsWith("AvalonDock.resources"))
            //{
            //    string resourcePath = Path.Combine(GlobalVariables.DirAssembly, "zh-Hans", "AvalonDock.resources.dll");
            //    return File.Exists(resourcePath) ? Assembly.LoadFrom(resourcePath) : null;
            //}

            //if (args.Name.StartsWith("AvalonDock"))
            //{
            //    string assemblyFile = Path.Combine(GlobalVariables.DirAssembly, "AvalonDock.dll");
            //    return File.Exists(assemblyFile) ? Assembly.LoadFrom(assemblyFile) : null;
            //}

            //var collection = new List<string>
            //{
            //    "System.Memory",
            //    "System.Runtime.CompilerServices.Unsafe",
            //    "System.Numerics.Vectors",

            //};

            //foreach (var item in collection)
            //{
            //    string services = Path.Combine(GlobalVariables.DirAssembly, $"{item}.dll");
            //    Assembly.LoadFrom(services);
            //}


            //string services = Path.Combine(GlobalVariables.DirAssembly, "System.Memory.dll");
            //if (File.Exists(services))
            //{
            //    Assembly.LoadFrom(services);
            //}
            //var dll = Directory.GetFiles(GlobalVariables.DirAssembly, "*.dll")
            //      .Where(f => Path.GetFileNameWithoutExtension(f) == dllName).FirstOrDefault();
            //return File.Exists(dll) ? Assembly.LoadFrom(dll) : null;

        }

        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
            AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;

            if (WinIntPtr.IsVisible("C#脚本执行"))
            {
                WinIntPtr.ShowAndActive("C#脚本执行");
            }
            else
            {
                try
                {
                    ShowNoModel();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.ToString(), "错误");
                }
            }
            return Result.Succeeded;
        }
    }
}