Speckle.Material.Avalonia/Material.Demo/ViewModels/DialogDemoItemViewModel.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Input;

namespace Material.Demo.ViewModels
{
    public class DialogDemoItemViewModel : ViewModelBase
    {
        public DialogDemoItemViewModel(string header, Func<IAsyncEnumerable<string>> handler)
        {
            _header = header;
            _commandHandler = handler;

            _command = new RelayCommand(OnExecuteCommandHandler);
        }

        private readonly Func<IAsyncEnumerable<string>> _commandHandler;

        private ICommand _command;

        public ICommand Command
        {
            get => _command;
            set
            {
                _command = value;
                OnPropertyChanged();
            }
        }

        private string _header;

        public string Header
        {
            get => _header;
            set
            {
                _header = value;
                OnPropertyChanged();
            }
        }

        private string? _result;

        public string? Result
        {
            get => _result;
            set
            {
                _result = value;
                OnPropertyChanged();
            }
        }

        private async void OnExecuteCommandHandler(object arg)
        {
            Result = "Waiting result...";

            var builder = new StringBuilder();

            await foreach (var str in _commandHandler())
            {
                builder.AppendLine(str);
                Result = builder.ToString();
            }
        }
    }
}