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

namespace Bsm.Core.Tests
{
    public class IoPoc
    {
        [Fact]
        public void CalcFileSizeA()
        {
            var dir = @"Y:\BeatSaverAll";

            long jsonSize = 0;

            var sw = new Stopwatch();
            sw.Restart();
            IoUtil.LookupFilesRecursively(dir, (p, f) =>
            {
                var ext = Path.GetExtension(p.cFileName)?.ToLower();
                if (ext != ".jpg" && ext!=".png") return;
                jsonSize += p.FileSize;
            });
            sw.Stop();//35s

            var kb = jsonSize / 1024f;
            var mb = kb / 1024f;
            var gb = mb / 1024f;
        }

        [Fact]
        public void CalcFileSizeB()
        {
            var dir = @"Z:\BeatSaverAll";

            var sw = new Stopwatch();
            sw.Restart();
            var jsonSize = Directory.GetFiles(dir, "*.dat", SearchOption.AllDirectories).Select(p => IoUtil.GetFileSize(p)).Sum();
            sw.Stop(); //2m0s

            var kb = jsonSize / 1024f;
            var mb = kb / 1024f;
            var gb = mb / 1024f;

        }

    }
}