Logger Refactoring (C#)

Attention.md

Logger Refactoring (C#)

Client.cs

using Logging;

public class Client {
  public static void Main(string[] args) {
    var db = new DatabaseLogger("url");
    db.Log(Level.INFO, "Hello");

    var console = new ConsoleLogger();
    console.Log(Level.INFO, "Hello");

    var file = new FileLogger(@"C:\directory\log.txt");
    file.Log(Level.DEBUG, "Hello");
  }
}

ConsoleLogger.cs

namespace Logging
{
  public class ConsoleLogger : Logger {
    public override void Write(string message) {
      Console.WriteLine($"Console Logger writing => {message}");
    }
  }
}

DatabaseLogger.cs

namespace Logging
{
  public class DatabaseLogger : Logger {
    private readonly string url;
  
    public DatabaseLogger(string url) { 
      this.url = url;
    }
    public override void Write(string message) {
      Console.WriteLine($"Database Logger writing to {url} => {message}");
    }
  }
}

FileLogger.cs

using System.IO;

namespace Logging
{
  public class FileLogger : Logger {
    private readonly string path;
  
    public FileLogger(string path) { 
      this.path = path;
    }
    public override void Write(string message) {
      // var text = message + Environment.NewLine;
      // File.AppendAllText(path, text);
      Console.WriteLine($"File Logger writing to {path} => {message}");
    }
  }
}

Logger.cs

using System.Threading;

namespace Logging
{
  public enum Level { DEBUG, INFO, WARN, ERROR, FATAL };
  
  public abstract class Logger {
    public void Log(Level level, string message) {
      var logMessage = Enrich(level, message);
      Write(logMessage);
    }
    // Hook
    protected internal string Enrich(Level level, string message) {
      return string.Format($"{DateTime.Now} [{Thread.CurrentThread}-{Thread.CurrentThread.ManagedThreadId}]  {level} {message}");
    }
    //Mandate
    public abstract void Write(string message);
  }
}