Creating a custom class in C# for creating a log file

Code for the class to create log file:

	public class LogUtility : IDisposable
	{
	public string LogFilePath { get; private set; }
	public Level LogLevel { get; private set; }
	private FileStream _fs = null;
	/// <summary>
	/// Constructor
	/// </summary>
	/// <param name="directoryPath">Folder location for log file</param>
	/// <param name="fileName">File Name (date will be automatically added to file name)</param>
	/// <param name="logLevel">Default log level to add in log file</param>
	public LogUtility(string directoryPath, string fileName, Level logLevel)
	{
	LogLevel = logLevel;
	LogFilePath = (directoryPath.EndsWith(@"\") ? directoryPath : $"{directoryPath}\\") +
	$"{fileName}-{DateTime.Today.ToString("yyyy-MM-dd")}.log";
	if (!File.Exists(LogFilePath)) //No File? Create
	{
	_fs = File.Create(LogFilePath);
	_fs.Close();
	}
	}
	/// <summary>
	/// Log will be written if default log level is DEBUG or ALL
	/// </summary>
	/// <param name="logMessage">Message as string</param>
	public void Debug (string logMessage)
	{
	LogTextFormatter(Level.DEBUG, logMessage);
	}
	/// <summary>
	/// Log will be written if default log level is INFO, DEBUG or ALL
	/// </summary>
	/// <param name="logMessage">Message as string</param>
	public void Info(string logMessage)
	{
	LogTextFormatter(Level.INFO, logMessage);
	}
	/// <summary>
	/// Log will be written if default log level is WARN, INFO, DEBUG or ALL
	/// </summary>
	/// <param name="logMessage">Message as string</param>
	public void Warn(string logMessage)
	{
	LogTextFormatter(Level.WARN, logMessage);
	}
	/// <summary>
	/// Log will be written if default log level is ERROR, WARN, INFO, DEBUG or ALL
	/// </summary>
	/// <param name="logMessage">Message as string</param>
	public void Error(string logMessage)
	{
	LogTextFormatter(Level.ERROR, logMessage);
	}
	/// <summary>
	/// Log will be written if level is equal or higher than default log level
	/// </summary>
	/// <param name="level">Log Level</param>
	/// <param name="logMessage">Message as string</param>
	public void Write(Level level, string logMessage)
	{
	LogTextFormatter(level, logMessage);
	}
	/// <summary>
	/// Formats the log before adding it to text file
	/// </summary>
	/// <param name="level">Log Level</param>
	/// <param name="logMessage">Message as string</param>
	private void LogTextFormatter(Level level, string logMessage)
	{
	if (LogLevel >= level)
	{
	File.AppendAllText(LogFilePath,
	$"\r\n{DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss,fff tt")} : {level.ToString()} : - {logMessage}");
	}
	}
	public void Dispose()
	{
	if (_fs != null)
	_fs.Dispose();
	LogFilePath = null;
	}
	}
	public enum Level
	{
	ERROR, WARN, INFO, DEBUG, ALL
	}

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