using System;

using System.Collections.Generic;

​

public interface ILogger

{

    void Info(string description, Dictionary<string, object> reference);

    void Error(string code, string description, Dictionary<string, object> reference);

}

​

public interface ISettings

{

  ILogger SetAppName(string appName);

}

​

public class LogWriter : ILogger

{

    string _code;

  public long _ts;

​

  internal string AppName {get; set;}

    internal LogWriter(string code=null, string appName = "test")

    {

        _code = code;

    AppName = appName;

    _ts = DateTimeOffset.Now.ToUnixTimeSeconds();

​

    }

​

    public void Info(string description, Dictionary<string, object> reference)

    {

        CommonLog(description, reference, "INFO");

    }

​

    public void Error(string code, string description, Dictionary<string, object> reference)

    {

        _code = code;

        CommonLog(description, reference, "ERROR");

    }

​

    public void CommonLog(string description, Dictionary<string, object> reference, string type)

    {

        Console.WriteLine($"{_ts} => {this.AppName} {type}, {_code}, {description}, " + reference["k"]);

    }

}

​

public class ConsoleLogger : ILogger, ISettings

{

    LogWriter _logger;

  string _appName;

​

    public ILogger Code(string code)

    {

        _logger = new LogWriter(code, _appName);Console.WriteLine(_logger._ts + ","+_logger.AppName);

        return _logger;

    }

​

    public void Info(string description, Dictionary<string, object> reference = null)

    {

        _logger = new LogWriter(appName:_appName);Console.WriteLine(_logger._ts + ","+_logger.AppName);

        _logger.Info(description, reference);

    }

​

    public void Error(string code, string description, Dictionary<string, object> reference = null)

    {

        _logger = new LogWriter(appName:_appName);Console.WriteLine(_logger._ts + ","+_logger.AppName);

        _logger.Error(code, description, reference);

    }

  public ILogger SetAppName(string name)

  {

    _appName = name;

    return _logger;

  }

}

​

public class Program

{

    public static void Main()

    {

        long k = 1234567890123;

        string m = "keeping it crazy";

        var reference = new Dictionary<string, object>()

        {["k"] = k, ["m"] = m};

        string description = "Describes the log";

        string code = "LOG.CODE";

        var log = new ConsoleLogger();

    log.SetAppName("test");

        log.Code(code).Info(description, reference);

    log.SetAppName("test2");

        log.Info(description, reference);

        //log.Error(description,reference);

        log.Error(code, description, reference);

​

​

    var log2 = new ConsoleLogger();

        log2.Code(code).Info(description, reference);

        log2.Info(description, reference);

        //log.Error(description,reference);

        log2.Error(code, description, reference);

    }

}