From 0e8bb5d1b78164d4bb274fcd970a3105d520a0b4 Mon Sep 17 00:00:00 2001
From: ChronosX88 <chronosx88@gmail.com>
Date: Fri, 26 Jun 2020 15:41:09 +0400
Subject: [PATCH] Implement logging system

---
 src/Zirconium/Core/Logging/Log.cs    | 46 ++++++++++++++
 src/Zirconium/Core/Logging/Logger.cs | 93 ++++++++++++++++++++++++++++
 src/Zirconium/Zirconium.csproj       | 11 ++--
 3 files changed, 145 insertions(+), 5 deletions(-)
 create mode 100644 src/Zirconium/Core/Logging/Log.cs
 create mode 100644 src/Zirconium/Core/Logging/Logger.cs

diff --git a/src/Zirconium/Core/Logging/Log.cs b/src/Zirconium/Core/Logging/Log.cs
new file mode 100644
index 0000000..7d0c801
--- /dev/null
+++ b/src/Zirconium/Core/Logging/Log.cs
@@ -0,0 +1,46 @@
+using System;
+
+namespace Zirconium.Core.Logging
+{
+    public class Log
+    {
+        private static Logger _defaultLogger = new Logger("", true, false, true);
+        private static object loggerMutex = new Object();
+
+        public static Logger Initialize(string name, bool verbose, bool systemLog) {
+            var logger = new Logger(name, verbose, systemLog, false);
+            if (!_defaultLogger.isInitialized) {
+                lock (loggerMutex) {
+                    if (!_defaultLogger.isInitialized) {
+                        var defLogger = new Logger(name, verbose, systemLog, true);
+                        _defaultLogger = defLogger;
+                        _defaultLogger.isInitialized = true;
+                    }
+                }
+            }
+            return logger;
+        }
+
+        public static void Close() {
+            lock (loggerMutex) {
+                _defaultLogger.Close();
+            }
+        }
+
+        public static void Error(string message) {
+            _defaultLogger.Error(message);
+        }
+
+        public static void Warning(string message) {
+            _defaultLogger.Warning(message);
+        }
+
+        public static void Fatal(string message) {
+            _defaultLogger.Fatal(message);
+        }
+
+        public static void Info(string message) {
+            _defaultLogger.Info(message);
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Zirconium/Core/Logging/Logger.cs b/src/Zirconium/Core/Logging/Logger.cs
new file mode 100644
index 0000000..1405fb9
--- /dev/null
+++ b/src/Zirconium/Core/Logging/Logger.cs
@@ -0,0 +1,93 @@
+using System.Diagnostics;
+using System;
+using System.Drawing;
+using Colorful;
+
+namespace Zirconium.Core.Logging
+{
+    public class Logger
+    {
+        private bool _isVerbose;
+        private bool _isDefaultLogger;
+        internal bool isInitialized;
+
+        internal Logger(string name, bool verbose, bool systemLog, bool isDefaultLogger) {
+            this._isVerbose = verbose;
+            this._isDefaultLogger = isDefaultLogger;
+        }
+
+        public void Close() {}
+
+        public void Error(string message) {
+            writeLog(LogType.Error, message);
+        }
+
+        public void Warning(string message) {
+            if (_isVerbose) {
+                writeLog(LogType.Warning, message);
+            }
+        }
+
+        public void Info(string message) {
+            if (_isVerbose) {
+                writeLog(LogType.Info, message);
+            }
+        }
+
+        public void Fatal(string message) {
+            writeLog(LogType.Fatal, message);
+            System.Environment.Exit(1);
+        }
+
+        private void writeLog(LogType logType, string message) {
+            var st = new StackTrace();
+            StackFrame stFrame;
+            if (_isDefaultLogger) {
+                stFrame = st.GetFrame(3);
+            } else {
+                stFrame = st.GetFrame(2);
+            }
+            var dateTimeFormatter = new Formatter($"{DateTime.Now}", Color.White);
+            var frameFormatter = new Formatter($"{stFrame.GetMethod().ReflectedType.Name}", Color.DeepPink);
+
+            string outputMessage = "[{0}] [{1}] | [{2}]: " + message;
+
+            Formatter tagFormatter = null;
+            switch (logType) {
+                case LogType.Error: {
+                    tagFormatter = new Formatter("ERROR", Color.Red);
+                    break;
+                }
+                case LogType.Fatal: {
+                    tagFormatter = new Formatter("FATAL", Color.DarkRed);
+                    break;
+                }
+                case LogType.Info: {
+                    tagFormatter = new Formatter("INFO", Color.Aqua);
+                    break;
+                }
+                case LogType.Warning: {
+                    tagFormatter = new Formatter("WARNING", Color.Yellow);
+                    break;
+                }
+                default: {
+                    tagFormatter = new Formatter("UNKNOWN", Color.Green);
+                    break;
+                }
+            }
+            var formatters = new Formatter[] {
+                dateTimeFormatter,
+                frameFormatter,
+                tagFormatter
+            };
+            Colorful.Console.WriteLineFormatted(outputMessage, Color.Gray, formatters);
+        }
+
+        internal enum LogType {
+            Error,
+            Fatal,
+            Info,
+            Warning
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/Zirconium/Zirconium.csproj b/src/Zirconium/Zirconium.csproj
index 7ba4307..2984bd2 100644
--- a/src/Zirconium/Zirconium.csproj
+++ b/src/Zirconium/Zirconium.csproj
@@ -4,10 +4,11 @@
     <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="websocketsharp.core" Version="1.0.0"/>
-    <PackageReference Include="YamlDotNet" Version="8.1.2"/>
-    <PackageReference Include="JWT" Version="7.2.1"/>
-    <PackageReference Include="Newtonsoft.Json" Version="12.0.3"/>
-    <PackageReference Include="McMaster.NETCore.Plugins" Version="1.3.0"/>
+    <PackageReference Include="Colorful.Console" Version="1.2.10" />
+    <PackageReference Include="websocketsharp.core" Version="1.0.0" />
+    <PackageReference Include="YamlDotNet" Version="8.1.2" />
+    <PackageReference Include="JWT" Version="7.2.1" />
+    <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="McMaster.NETCore.Plugins" Version="1.3.0" />
   </ItemGroup>
 </Project>
\ No newline at end of file