using Avalonia.Controls;
using Avalonia.Input;
using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Nikse.SubtitleEdit.Logic;
using Nikse.SubtitleEdit.Logic.Config;
using Nikse.SubtitleEdit.Core.Common;
using System;
using System.Threading.Tasks;

namespace Nikse.SubtitleEdit.Features.Help.About;

public partial class AboutViewModel : ObservableObject
{
    public Window? Window { get; set; }

    public string TitleText => $"Subtitle Edit {Se.Version}";
    public string TranslatedBy => string.Format(Se.Language.About.TranslatedBy, Se.Language.TranslatedBy);
    public string LicenseText => Se.Language.About.LicenseText;
    public string DescriptionText => string.Join(Environment.NewLine, Se.Language.About.DescriptionText.SplitToLines());

    [RelayCommand]
    private async Task OpenGitHub()
    {
        if (Window == null)
        {
            return;
        }

        await Window.Launcher.LaunchUriAsync(new Uri("https://github.com/SubtitleEdit/subtitleedit"));
    }

    [RelayCommand]
    private async Task OpenPayPal()
    {
        if (Window == null)
        {
            return;
        }

        await Window.Launcher.LaunchUriAsync(new Uri("https://www.paypal.com/donate/?hosted_button_id=4XEHVLANCQBCU"));
    }

    [RelayCommand]
    private async Task OpenGitHubSponsor()
    {
        if (Window == null)
        {
            return;
        }

        UiUtil.OpenUrl("https://github.com/sponsors/niksedk");
    }

    [RelayCommand]
    private void Ok()
    {
        Window?.Close();
    }

    public void OnKeyDown(object? sender, KeyEventArgs e)
    {
        if (e.Key == Key.Escape)
        {
            e.Handled = true;
            Window?.Close();
        }
        else if (UiUtil.IsHelp(e))
        {
            e.Handled = true;
            UiUtil.ShowHelp();
        }
    }
}