using System.Collections.Generic;
using System.IO;
using System.Text.RegularExpressions;

namespace GCHR.Control
{
    public class Logger
    {
        public static string ConfigDatei = "config\\gchr.xml";
        public static string LogDatei
        {
            get { return "logs\\" + Regex.Match(ConfigDatei, @"\w*\.xml$") + ".log"; }
        }
        public static string ExportLog = LogDatei;

        public static void Info(string message)
        {
            lock(LogDatei)
            {
                Log(message, LogDatei);    
            }
        }


        public static void Progress(string message)
        {
            lock(ExportLog)
            {
                Log(message, ExportLog);
            }
        }

        private static void Log(string message, string datei)
        {
            using (var sw = new StreamWriter(datei, true))
            {
                sw.WriteLine(message);
            }
        }

        public static bool DateiExistiert { get { return File.Exists(LogDatei); } 
        }

        public static List<string> Historie()
        {
            if (!File.Exists(LogDatei)) return new List<string>();

            using (var sr = new StreamReader(LogDatei, true))
            {
                var list = new List<string>();
                while (!sr.EndOfStream)
                {
                    var line = sr.ReadLine();
                    if (line != null && Regex.IsMatch(line, @" - \d{2}/\d{4}$"))
                    {
                        list.Add(line);
                    }
                }
                return list;
            }
        }
    }
}