using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media.Imaging;
using Tango.Scripting.IDE.Windows;
using Tango.SharedUI;

namespace Tango.Scripting.IDE.Notifications
{
    public class DefaultNotificationManager : INotificationManager
    {
        public Task<TViewModel> ShowDialog<TViewModel, TView>(TViewModel viewModel, TView view)
            where TViewModel : IDEDialogViewModel
            where TView : FrameworkElement
        {
            TaskCompletionSource<TViewModel> source = new TaskCompletionSource<TViewModel>();

            Application.Current.Dispatcher.BeginInvoke(new Action(() =>
            {
                DialogWindow window = new DialogWindow();
                window.Title = viewModel.Title;
                window.Content = view;
                view.DataContext = viewModel;
                window.WindowStartupLocation = WindowStartupLocation.CenterOwner;
                window.Owner = Application.Current.MainWindow;
                viewModel.Accepted += () =>
                {
                    window.Close();
                    source.SetResult(viewModel);
                };
                viewModel.Canceled += () =>
                {
                    window.Close();
                    source.SetResult(viewModel);
                };
                window.ShowDialog();
            }));

            return source.Task;
        }

        public Task<TViewModel> ShowDialog<TViewModel>(TViewModel viewModel) where TViewModel : IDEDialogViewModel
        {
            var modelName = typeof(TViewModel).Name;
            var viewName = modelName.Replace("VM", "");
            var viewType = typeof(TViewModel).Assembly.GetType(typeof(TViewModel).Namespace + "." + viewName);
            var view = Activator.CreateInstance(viewType) as FrameworkElement;
            return ShowDialog(viewModel, view);
        }

        public Task<TViewModel> ShowDialog<TViewModel>() where TViewModel : IDEDialogViewModel
        {
            return ShowDialog(Activator.CreateInstance<TViewModel>());
        }

        public Task ShowError(string title, string message)
        {
            throw new NotImplementedException();
        }

        public Task ShowInfo(string title, string message)
        {
            throw new NotImplementedException();
        }

        public ProgressNotificationHandler ShowProgress(string title, string message, bool canCancel = false)
        {
            throw new NotImplementedException();
        }

        public Task<bool> ShowQuestion(string title, string message)
        {
            throw new NotImplementedException();
        }

        public Task ShowSuccess(string title, string message)
        {
            throw new NotImplementedException();
        }

        public Task ShowWarning(string title, string message)
        {
            throw new NotImplementedException();
        }

        private Task ShowMessageBox(String title, String message, bool hasCancel, BitmapSource icon)
        {
            return null;
        }
    }
}