using System;
using System.IO;
using System.Windows.Forms;

namespace scheduler
{
    /// <summary>
    /// Class to write a log in schedulerlog.txt file on applicaiton startup path
    /// </summary>
    public static class LogWriter
    {
        public static void LogInfo(string schedulerType, string message,string methodName)
        {
            try
            {
                string path = $"{Application.StartupPath}\\Logs\\{schedulerType}";
                if(!Directory.Exists(path))
                {
                    Directory.CreateDirectory(path);
                }
                path = $"{path}\\Scheduler_Log{DateTime.Now.ToString("yyyyMMdd")}.txt";
                if (!File.Exists(path))
                {
                    File.Create(path).Dispose();
                }
                
                using (StreamWriter w = File.AppendText(path))
                {
                    Log(message,methodName, w);
                }
            }
            catch (Exception ex)
            {
                //throw;
            }
        }

        private static void Log(string logMessage,string methodName, TextWriter txtWriter)
        {
            try
            {
                txtWriter.Write(Environment.NewLine);
                txtWriter.WriteLine($"Method Name:{methodName}");
                txtWriter.WriteLine($"Log Date Time:{DateTime.Now}");
                txtWriter.WriteLine($"Info:{logMessage}");
                txtWriter.WriteLine("-------------------------------------------------------------------------------------------------------");
            }
            catch (Exception ex)
            {
                
            }
        }

        public static void DeleteOldLog(string schedulerType, int days)
        {
            // Delete files older than x days in folder
            string[] files = Directory.GetFiles($"{Application.StartupPath}\\Logs\\{schedulerType}");
            foreach (string file in files)
            {
                FileInfo fi = new FileInfo(file);
                if (fi.CreationTime < DateTime.Now.AddDays(days))
                {
                    fi.Delete();
                }
            }
        }
    }
}