Add internal logging, closes #44

ArchiSteamFarm/Logging.cs

@@ -24,16 +24,32 @@
 
 using System;
 using System.Diagnostics;
+using System.IO;
 using System.Runtime.CompilerServices;
 
 namespace ArchiSteamFarm {
 	internal static class Logging {
+		private static readonly object FileLock = new object();
+
+		internal static void Init() {
+			File.Delete(Program.LogFile);
+		}
+
 		private static void Log(string message) {
-			if (Program.ConsoleIsBusy) {
+			if (string.IsNullOrEmpty(message)) {
 				return;
 			}
 
-			Console.WriteLine(DateTime.Now + " " + message);
+			string loggedMessage = DateTime.Now + " " + message + Environment.NewLine;
+
+			// Write on console only when not awaiting response from user
+			if (!Program.ConsoleIsBusy) {
+				Console.Write(loggedMessage);
+			}
+
+			lock (FileLock) {
+				File.AppendAllText(Program.LogFile, loggedMessage);
+			}
 		}
 
 		internal static void LogGenericError(string botName, string message, [CallerMemberName] string previousMethodName = "") {

ArchiSteamFarm/Program.cs

@@ -53,6 +53,7 @@ namespace ArchiSteamFarm {
 		private static readonly object ConsoleLock = new object();
 		//private static readonly string ExeName = AssemblyName.Name + ".exe";
 
+		internal static readonly string LogFile = Path.Combine(Path.GetDirectoryName(ExecutablePath), "log.txt");
 		internal static readonly string Version = AssemblyName.Version.ToString();
 
 		internal static bool ConsoleIsBusy { get; private set; } = false;
@@ -150,14 +151,15 @@ namespace ArchiSteamFarm {
 		}
 
 		private static void InitServices() {
+			Logging.Init();
 			WebBrowser.Init();
 		}
 
 		private static void Main(string[] args) {
-			Logging.LogGenericInfo("Main", "Archi's Steam Farm, version " + Version);
-
 			InitServices();
 
+			Logging.LogGenericInfo("Main", "Archi's Steam Farm, version " + Version);
+
 			Task.Run(async () => await CheckForUpdate().ConfigureAwait(false)).Wait();
 
 			// Allow loading configs from source tree if it's a debug build