using Avalonia.Controls;
using Avalonia.Input;
using Avalonia.Interactivity;
using LehrerApp.Desktop.ViewModels.Groups;

namespace LehrerApp.Desktop.Views.Groups;

public partial class ParticipationQuickInputDialog : Window
{
    public ParticipationQuickInputDialog() => InitializeComponent();

    protected override void OnOpened(EventArgs e)
    {
        base.OnOpened(e);
        Focus();
    }

    protected override void OnKeyDown(KeyEventArgs e)
    {
        if (DataContext is not QuickInputViewModel vm) { base.OnKeyDown(e); return; }

        switch (e.Key)
        {
            case Key.D0 or Key.NumPad0: vm.SetRatingByNumber(0); e.Handled = true; break;
            case Key.D1 or Key.NumPad1: vm.SetRatingByNumber(1); e.Handled = true; break;
            case Key.D2 or Key.NumPad2: vm.SetRatingByNumber(2); e.Handled = true; break;
            case Key.D3 or Key.NumPad3: vm.SetRatingByNumber(3); e.Handled = true; break;
            case Key.D4 or Key.NumPad4: vm.SetRatingByNumber(4); e.Handled = true; break;
            case Key.D5 or Key.NumPad5: vm.SetRatingByNumber(5); e.Handled = true; break;
            // 6-9 sind nur für Punkte-Aspekte (3.1.3) sinnvoll, siehe QuickInputViewModel.SetRatingByNumber.
            case Key.D6 or Key.NumPad6: vm.SetRatingByNumber(6); e.Handled = true; break;
            case Key.D7 or Key.NumPad7: vm.SetRatingByNumber(7); e.Handled = true; break;
            case Key.D8 or Key.NumPad8: vm.SetRatingByNumber(8); e.Handled = true; break;
            case Key.D9 or Key.NumPad9: vm.SetRatingByNumber(9); e.Handled = true; break;

            case Key.Q: vm.SelectAspect(0); e.Handled = true; break;
            case Key.W: vm.SelectAspect(1); e.Handled = true; break;
            case Key.E: vm.SelectAspect(2); e.Handled = true; break;
            case Key.R: vm.SelectAspect(3); e.Handled = true; break;
            case Key.T: vm.SelectAspect(4); e.Handled = true; break;

            case Key.Space:   vm.NextAspect();     e.Handled = true; break;
            case Key.Enter:
                if (vm.IsLastStudent) Close();
                else vm.NextStudent();
                e.Handled = true;
                break;
            case Key.Back:    vm.PreviousStudent(); e.Handled = true; break;

            // Rechtsseitiges Pendant zu Q/W/E/R/T (links)/Enter/Backspace/Leertaste: ohne diese
            // Fälle fallen Pfeiltasten auf Avalonias Standard-Fokusnavigation durch und der Fokus
            // springt auf den Schließen-Button — ein Enter danach schließt dann den Dialog statt
            // zum nächsten Schüler zu springen.
            case Key.Up:    vm.PreviousAspect(); e.Handled = true; break;
            case Key.Down:  vm.NextAspect();     e.Handled = true; break;
            case Key.Right: vm.NextStudent();     e.Handled = true; break;
            case Key.Left:  vm.PreviousStudent(); e.Handled = true; break;

            case Key.OemPlus  or Key.Add:      vm.IncrementRating(); e.Handled = true; break;
            case Key.OemMinus or Key.Subtract: vm.DecrementRating(); e.Handled = true; break;

            case Key.Escape: Close(); e.Handled = true; break;

            default: base.OnKeyDown(e); break;
        }
    }

    private void OnClose(object? s, RoutedEventArgs e) => Close();
}