//	Spludlow Software
//	Copyright © Samuel P. Ludlow 2020 All Rights Reserved
//	Distributed under the terms of the GNU General Public License version 3
//	Distributed WITHOUT ANY WARRANTY; without implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE
//	https://www.spludlow.co.uk/LICENCE.TXT
//	The Spludlow logo is a registered trademark of Samuel P. Ludlow and may not be used without permission
//	v1.14

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

using System.IO;

namespace Spludlow
{
	public class TempDirectory : IDisposable
	{
		private string LockFilePath;
		public string Path;

		public TempDirectory()
		{
			this.Start(null);
		}

		public TempDirectory(string rootDir)
		{
			this.Start(rootDir);
		}

		private void Start(string rootDir)
		{
			if (rootDir != null && rootDir.StartsWith("@") == true)
			{
				string configKey = rootDir.Substring(1);
				rootDir = Spludlow.Config.Get(configKey, true);
				if (rootDir == null)
					Spludlow.Log.Warning("TempDirectory; Config Key not found, Using default Temp Directory Location:\t" + configKey);
			}

			if (rootDir == null || rootDir == "")
			{
				if (rootDir == null)
					this.LockFilePath = System.IO.Path.GetTempFileName();
				else
					this.LockFilePath = @"\\?\" + System.IO.Path.GetTempFileName();	//	Long filename support

				this.Path = this.LockFilePath + ".dir";
			}
			else
			{
				this.LockFilePath = null;
				this.Path = Spludlow.Io.Dirs.UniqueExistingName(rootDir + @"\Temp-" + Spludlow.Text.TimeStamp());
			}

			Directory.CreateDirectory(this.Path);
		}

		public void Dispose()
		{
			if (Directory.Exists(this.Path) == true)
			{
				Directory.Delete(this.Path, true);
			}

			if (this.LockFilePath != null)
				File.Delete(this.LockFilePath);
		}

		public override string ToString()
		{
			return this.Path;
		}

	}
}