using Avalonia.Controls;
using LehrerApp.Core.Interfaces;
using LehrerApp.Desktop.ViewModels.Groups;
using Microsoft.Extensions.DependencyInjection;

namespace LehrerApp.Desktop.Views.Groups;

public partial class GroupDetailView : UserControl
{
    public GroupDetailView() => InitializeComponent();

    protected override void OnDataContextChanged(EventArgs e)
    {
        base.OnDataContextChanged(e);
        if (DataContext is GroupDetailViewModel vm)
            vm.OnAddStudent = ShowAddStudentDialog;
    }

    private async Task<bool> ShowAddStudentDialog()
    {
        if (DataContext is not GroupDetailViewModel vm || vm.Group is null) return false;

        var dialogVm = new AddStudentToGroupDialogViewModel(
            App.Services.GetRequiredService<IStudentRepository>(),
            App.Services.GetRequiredService<IEnrollmentRepository>(),
            vm.Group.Id,
            vm.Group.SchoolYear);

        var dialog = new AddStudentToGroupDialog { DataContext = dialogVm };
        var owner = TopLevel.GetTopLevel(this) as Window;
        if (owner is null) return false;

        return await dialog.ShowDialog<bool>(owner);
    }
}