From 0299a0724e5b1be4c9c95c4fb7a26fe23c9a9224 Mon Sep 17 00:00:00 2001
From: dnesov <contact.dnesov@gmail.com>
Date: Sat, 20 Jan 2024 17:38:12 +0100
Subject: [PATCH] Add file logging to Logger.

---
 .gitignore                             |  3 ++
 DaggerFramework/Source/Utils/Logger.cs | 47 +++++++++++++++++++-------
 2 files changed, 37 insertions(+), 13 deletions(-)

diff --git a/.gitignore b/.gitignore
index 9ecacbf..0e8d1ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,6 +36,9 @@ msbuild.wrn
 # Visual Studio 2015
 .vs/
 
+# Dagger log files
+*.log
+
 
 # FMOD binaries (I cannot distribute them)
 DaggerFramework.Fmod/*.nupkg
diff --git a/DaggerFramework/Source/Utils/Logger.cs b/DaggerFramework/Source/Utils/Logger.cs
index 0a50aaf..d14c834 100644
--- a/DaggerFramework/Source/Utils/Logger.cs
+++ b/DaggerFramework/Source/Utils/Logger.cs
@@ -13,11 +13,24 @@ namespace DaggerFramework.Utils
         /// Specifies the logging level. In release builds, the log level is <c>Error</c>. In debug, the log level is <c>Echo</c>.
         /// </summary>
         public static LogLevel LogLevel = LogLevel.Error;
+        /// <summary>
+        /// Specifies if the logger should write to file.
+        /// </summary>
+        public static bool WriteToFile = true;
 
         public Logger(string className)
         {
             _className = className;
 
+            if (WriteToFile && !_logCreated)
+            {
+                Directory.CreateDirectory(LogPath);
+                string logName = $"dagger-{DateFormat}-{TimeFormat}.log".Replace(':', '.');
+                _fileStream = File.Create(Path.Combine(LogPath, logName));
+                _fileWriter = new StreamWriter(_fileStream);
+                _logCreated = true;
+            }
+
 #if DEBUG
             LogLevel = LogLevel.Echo;
 #endif
@@ -25,54 +38,52 @@ namespace DaggerFramework.Utils
 
         public void Echo(string what)
         {
-            if (LogLevel < LogLevel.Echo) return;
-
-            string message = string.Format(EchoFormat, DateFormat, what);
+            string message = string.Format(EchoFormat, TimeFormat, what);
 
+            LogFile(message);
             LogConsole(what, LogLevel.Echo);
             OnLog?.Invoke(what, LogLevel.Echo);
         }
 
         public void Info(string what, [CallerMemberName] string method = "")
         {
-            if (LogLevel < LogLevel.Info) return;
-
             LogLevel logType = LogLevel.Info;
-            string message = string.Format(LogFormat, DateFormat, logType.ToString(), _className, method, what);
+            string message = string.Format(LogFormat, TimeFormat, logType.ToString(), _className, method, what);
 
+            LogFile(message);
             LogConsole(message, logType);
             OnLog?.Invoke(message, logType);
         }
 
         public void Warn(string what, [CallerMemberName] string method = "")
         {
-            if (LogLevel < LogLevel.Warn) return;
-
             LogLevel logType = LogLevel.Warn;
-            string message = string.Format(LogFormat, DateFormat, logType.ToString(), _className, method, what);
+            string message = string.Format(LogFormat, TimeFormat, logType.ToString(), _className, method, what);
 
+            LogFile(message);
             LogConsole(message, logType);
             OnLog?.Invoke(message, logType);
         }
 
         public void Error(string what, [CallerMemberName] string method = "")
         {
-            if (LogLevel < LogLevel.Error) return;
-
             LogLevel logType = LogLevel.Error;
-            string message = string.Format(LogFormat, DateFormat, logType.ToString(), _className, method, what);
+            string message = string.Format(LogFormat, TimeFormat, logType.ToString(), _className, method, what);
 
+            LogFile(message);
             LogConsole(message, logType);
             OnLog?.Invoke(message, logType);
         }
 
 
-        private static string DateFormat => $"{DateTime.Now:HH:mm:ffff}";
+        private static string TimeFormat => $"{DateTime.Now:HH:mm:ffff}";
+        private static string DateFormat => $"{DateTime.Now:d:M:yyyy:}";
         private static string LogFormat => "({0}) [{1}/{2}/{3}] {4}";
         private static string EchoFormat => "({0}) {1}";
 
         private static void LogConsole(string what, LogLevel logType)
         {
+            if (LogLevel < logType) return;
             Console.ForegroundColor = ConsoleColorForLog(logType);
             Console.WriteLine(what);
             Console.ForegroundColor = ConsoleColor.White;
@@ -99,7 +110,17 @@ namespace DaggerFramework.Utils
             return color;
         }
 
+        private void LogFile(string message)
+        {
+            if (!WriteToFile || _fileWriter is null) return;
+            _fileWriter.WriteLine(message);
+            _fileWriter.Flush();
+        }
+
         private readonly string _className;
+        private static bool _logCreated;
+        private static FileStream? _fileStream;
+        private static StreamWriter? _fileWriter;
     }
 
     public enum LogLevel