TransferIdentityViewModel.cs

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using NeuroAccessMaui.Resources.Languages;
using NeuroAccessMaui.Services;
using NeuroAccessMaui.Services.Contacts;
 
namespace NeuroAccessMaui.UI.Pages.Identity.TransferIdentity
{
    public partial class TransferIdentityViewModel : QrXmppViewModel, IDisposable
    {
        private bool isDisposed;
        private Timer? timer;
 
        public TransferIdentityViewModel(TransferIdentityNavigationArgs? Args)
            : base()
        {
            if (Args is not null)
                this.Uri = Args.Uri;
        }
 
        public override async Task OnInitializeAsync()
        {
            await base.OnInitializeAsync();
 
            if (this.Uri is not null)
            {
                this.QrCodeWidth = 400;
                this.QrCodeHeight = 400;
                this.GenerateQrCode(this.Uri);
            }
 
            this.timer = new Timer(this.Timeout, null, 60000, 60000);
        }
 
        private void Timeout(object? _)
        {
            this.timer?.Dispose();
            this.timer = null;
 
            MainThread.BeginInvokeOnMainThread(async () =>
            {
                await this.GoBack();
            });
        }
 
        public override Task OnDisposeAsync()
        {
            this.timer?.Dispose();
            this.timer = null;
 
            return base.OnDisposeAsync();
        }
 
        #region Properties
 
        [ObservableProperty]
        private string? uri;
 
        #endregion
 
        [RelayCommand]
        private async Task CopyUriToClipboard()
        {
            await Clipboard.SetTextAsync(this.Uri);
 
            await ServiceRef.UiService.DisplayAlert(
                ServiceRef.Localizer[nameof(AppResources.SuccessTitle)],
                ServiceRef.Localizer[nameof(AppResources.TagValueCopiedToClipboard)]);
        }
 
        #region ILinkableView
 
        public override Task<string> Title => Task.FromResult(ContactInfo.GetFriendlyName(ServiceRef.TagProfile.LegalIdentity!));
 
        #endregion
 
        public void Dispose()
        {
            this.Dispose(true);
            GC.SuppressFinalize(this);
        }
 
        protected virtual void Dispose(bool disposing)
        {
            if (this.isDisposed)
                return;
 
            if (disposing)
            {
                this.timer?.Dispose();
                this.timer = null;
            }
 
            this.isDisposed = true;
        }
    }
}