JiraTimeBot/src/JiraTimeBot/Logger.cs

using System;
using System.ComponentModel;

namespace JiraTimeBot
{
    public class Logger : ILog
    {
        private readonly Action<string> _logAction;

        public Logger(Action<string> logAction)
        {
            _logAction = logAction;
        }

        private void AppendText(string message)
        {
            message = $"{DateTime.Now:HH:mm} {message}";
            _logAction(message);
        }

        public void Info([Localizable(false)] string message)
        {
            AppendText(message);
        }

        public void Trace([Localizable(false)] string message)
        {
            AppendText(message);
        }

        public void Warn([Localizable(false)] string message)
        {
            AppendText(message);
        }

        public void Error([Localizable(false)] string message)
        {
            AppendText(message);
        }
    }

    public interface ILog
    {
        void Info([Localizable(false)] string message);
        void Trace([Localizable(false)] string message);
        void Warn([Localizable(false)] string message);
        void Error([Localizable(false)] string message);
    }
}