using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Remotely.Shared.Extensions
{
    public static class StreamExtensions
    {
        public static async Task CopyToAsync(this Stream source, Stream destination, Action<int> bytesReadCallback)
        {
            var buffer = new byte[64_000];
            var totalRead = 0;

            int bytesRead;

            while ((bytesRead = await source.ReadAsync(buffer)) != 0)
            {
                await destination.WriteAsync(buffer.AsMemory(0, bytesRead));
                totalRead += bytesRead;
                bytesReadCallback.Invoke(totalRead);
            }
        }
    }
}