DisplayAlert.cs

using NeuroAccessMaui.Resources.Languages;
using Waher.Script.Operators.Membership;
 
namespace NeuroAccessMaui.Services.UI.Tasks
{
    public class DisplayAlert(string Title, string Message, string? Accept, string? Cancel) : UiTask
    {
        public string Title { get; } = Title;
 
        public string Message { get; } = Message;
 
        public string? Accept { get; } = Accept;
 
        public string? Cancel { get; } = Cancel;
 
        public TaskCompletionSource<bool> CompletionSource { get; } = new TaskCompletionSource<bool>();
 
        public override async Task Execute()
        {
            bool Result;
 
            Page? DisplayedPage = App.Current?.MainPage;
 
            if (!string.IsNullOrWhiteSpace(this.Accept) && !string.IsNullOrWhiteSpace(this.Cancel))
            {
                Result = await (DisplayedPage?.DisplayAlert(this.Title, this.Message, this.Accept, this.Cancel) ??
                    Task.FromResult(false));
            }
            else if (!string.IsNullOrWhiteSpace(this.Cancel))
            {
                await (DisplayedPage?.DisplayAlert(this.Title, this.Message, this.Cancel) ?? Task.CompletedTask);
                Result = true;
            }
            else if (!string.IsNullOrWhiteSpace(this.Accept))
            {
                await (DisplayedPage?.DisplayAlert(this.Title, this.Message, this.Accept) ?? Task.CompletedTask);
                Result = true;
            }
            else
            {
                await (DisplayedPage?.DisplayAlert(this.Title, this.Message,
                    ServiceRef.Localizer[nameof(AppResources.Ok)]) ?? Task.CompletedTask);
 
                Result = true;
            }
 
            this.CompletionSource.TrySetResult(Result);
        }
    }
}