using CopyUSB;
using System.Management;
static string GetVolumeLabel(string driveName)
{
	try
	{
		DriveInfo driveInfo = new DriveInfo(driveName);
		return driveInfo.VolumeLabel;
	}
	catch (Exception)
	{
		return null;
	}
}

string query = "SELECT * FROM Win32_VolumeChangeEvent WHERE EventType = 2";

ManagementEventWatcher managementEventWatcher = new(query);

Console.WriteLine("Waiting for USB...");


managementEventWatcher.EventArrived += (s, e) =>
{
	/*Console.WriteLine("触发器被触发了");*/
	string driveName = e.NewEvent.Properties["DriveName"].Value.ToString();

	string dPath = Path.Join(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "USBCopy", GetVolumeLabel(driveName));
	
	Console.WriteLine($"Detected: {driveName} || Save To -> : {dPath}");

	if (!Directory.Exists(dPath))
	{
		Directory.CreateDirectory(dPath);
	}
	
	var copyList = new List<(long, FileInfo, string, string)>();

	FileCopy.Copy(driveName, dPath,copyList);

	var sortedList = copyList.OrderBy(s => s.Item1).Select(s => s);
	/*Console.WriteLine($"元素个数{sortedList.Count()}");*/
	foreach (var copyItem in sortedList)
	{
		Console.WriteLine($"{copyItem.Item4} {copyItem.Item2} --> {copyItem.Item3} {copyItem.Item1 / 1024 / 1024}MB");
		try
		{
			copyItem.Item2.CopyTo(copyItem.Item3, true);
		}
		catch (Exception ex)
		{
			Console.WriteLine($"Copy Error {copyItem.Item2}");
			/*Console.WriteLine(ex.ToString());*/
		}
	}
	Console.WriteLine("\n--------------Scaned and waiting--------------\n");
};

managementEventWatcher.Start();

// 让程序保持运行状态
while (true)
{
	Thread.Sleep(1000);
	/*Console.WriteLine("一次休眠周期");*/
}