using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Platform.Storage;
using LehrerApp.Desktop.ViewModels.Groups;

namespace LehrerApp.Desktop.Views.Groups;

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

    private async void OnExportClick(object? sender, RoutedEventArgs e)
    {
        if (DataContext is not ReportGradeDialogViewModel vm) return;
        var topLevel = TopLevel.GetTopLevel(this);
        if (topLevel is null) return;

        var file = await topLevel.StorageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
        {
            Title             = "Zeugnisnoten exportieren",
            SuggestedFileName = $"Zeugnisnoten_{vm.GroupLabel}.csv",
            FileTypeChoices   = [new FilePickerFileType("CSV-Dateien") { Patterns = ["*.csv"] }],
        });

        if (file is null) return;
        await File.WriteAllTextAsync(file.Path.LocalPath, vm.ExportCsv());
    }

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