VRCModLogger.cs

using System;
using System.IO;
using UnityEngine;

namespace VRCModLoader
{
    public class VRCModLogger
    {
        internal static bool consoleEnabled = false;
        private static StreamWriter log;

        internal static void Init()
        {
            string logFilePath = Path.Combine(Environment.CurrentDirectory, ("Logs/VRCModLoader_" + DateTime.Now.ToString("yyyy-MM-dd-HH-mm-ss-fff") + ".log"));
            FileInfo logFileInfo = new FileInfo(logFilePath);
            DirectoryInfo logDirInfo = new DirectoryInfo(logFileInfo.DirectoryName);

            if (!logDirInfo.Exists)
                logDirInfo.Create();
            else
                CleanOld(logDirInfo);

            FileStream fileStream = null;
            if (!logFileInfo.Exists)
                fileStream = logFileInfo.Create();
            else
                fileStream = new FileStream(logFilePath, FileMode.Open, FileAccess.Write, FileShare.Read);

            log = new StreamWriter(fileStream);
            log.AutoFlush = true;
            Log("Logger Initialized");
        }
		
        internal static void CleanOld(DirectoryInfo logDirInfo)
        {
            FileInfo[] filetbl = logDirInfo.GetFiles("VRCModLoader_*");
            if (filetbl.Length > 0)
            {
                List<FileInfo> filelist = filetbl.ToList().OrderBy(x => x.LastWriteTime).ToList();
                for (int i = (filelist.Count - 10); i > -1; i--)
                {
                    FileInfo file = filelist[i];
                    file.Delete();
                }
            }
        }

        internal static void Stop()
        {
            log.Close();
        }

        internal static string GetTimestamp() { return DateTime.Now.ToString("HH:mm:ss.fff"); }

        public static void Log(string s)
        {
            var timestamp = GetTimestamp();
            if(consoleEnabled) Console.WriteLine("[" + timestamp + "] [VRCMod] " + s);
            if(log != null) log.WriteLine("[" + timestamp + "] " + s);
        }

        public static void Log(string s, params object[] args)
        {
            var timestamp = GetTimestamp();
            var formatted = string.Format(s, args);
            if (consoleEnabled) Console.WriteLine("[" + timestamp + "] [VRCMod] " + s, args);
            if (log != null) log.WriteLine("[" + timestamp + "] " + formatted);
        }

        public static void LogError(string s)
        {
            var timestamp = GetTimestamp();
            if (consoleEnabled) Console.WriteLine("[" + timestamp + "] [VRCMod] [Error] " + s);
            if (log != null) log.WriteLine("[" + timestamp + "] [Error] " + s);
        }

        public static void LogError(string s, params object[] args)
        {
            var timestamp = GetTimestamp();
            var formatted = string.Format(s, args);
            if (consoleEnabled) Console.WriteLine("[" + timestamp + "] [VRCMod] [Error] " + formatted);
            if (log != null) log.WriteLine("[" + timestamp + "] [Error] " + formatted);
        }
    }
}