private static void OnMessageLogged(string message, LogLevel level, LogType type, DateTime time,
string fullmessage)
=> MessageLogged?.Invoke(message, level, type, time, fullmessage);
private static Tuple<ConsoleColor, ConsoleColor> FromHex(string colorStr, ConsoleColor fg, ConsoleColor bg,
LogLevel level, LogType type)
{
// First 2 characters of segment contain color hex code:
var hex = colorStr.Substring(0, 2);
switch (hex)
{
// Special codes begin with an X.
case "XL":
return new Tuple<ConsoleColor, ConsoleColor>(level.FG, level.BG);
case "XT":
return new Tuple<ConsoleColor, ConsoleColor>(type.FG, type.BG);
case "XR":
return new Tuple<ConsoleColor, ConsoleColor>(fg, bg);
default:
// Parse regular hex codes.
return new Tuple<ConsoleColor, ConsoleColor>(
(ConsoleColor) int.Parse(hex[1].ToString(), NumberStyles.HexNumber),
(ConsoleColor) int.Parse(hex[0].ToString(), NumberStyles.HexNumber));
}
}
/// <summary>
/// Log a message with the specified level and color.
/// See https://www.pyratron.com/assets/consolehex.png for hex codes that can be used in the message.
/// </summary>
public static void Log(LogLevel level, ConsoleColor fg, string message, params object[] args)
=> Log(level, LogType.None, message, fg, ConsoleColor.Black, args);
private static void Log(LogLevel level, LogType type, string message, ConsoleColor fg = ConsoleColor.Gray,
ConsoleColor bg = ConsoleColor.Black, params object[] args)
{
try
{
// Prevent messages from appearing messed up due to Write calls being out of order.
lock (locker)
{
// Replace variables.
var str = LogFormat.Replace("%timestamp", GetTimestamp())
.Replace("%level", new string(' ', levelColumnLength - level.ToString().Length) + level);
if (type == LogType.None)
str = str.Remove(str.IndexOf("%type", StringComparison.Ordinal) + "%type".Length, 2);
str = str.Replace("%type", type.ToString());
var msgIndex = str.IndexOf("%message", StringComparison.Ordinal);
str = str.Replace("%message", string.Format(message, args));
var colors = str.Split('@');
// Reset console line.
Console.ForegroundColor = fg;
Console.BackgroundColor = bg;
FixBuffer();
Console.CursorLeft = 0;
// For each color string, change the console color and write the text.
for (var i = 0; i < colors.Length; i++)
{
var colorStr = colors[i];
if (string.IsNullOrWhiteSpace(colorStr)) continue;
var color = FromHex(colorStr, fg, bg, level, type);
Console.ForegroundColor = color.Item1;
Console.BackgroundColor = color.Item2;
if (i == colors.Length - 1)
Console.WriteLine(colorStr.Substring(2));
else
Console.Write(colorStr.Substring(2));
Console.ForegroundColor = fg;
Console.BackgroundColor = bg;
}
Console.ForegroundColor = ConsoleColor.Gray;
Console.BackgroundColor = ConsoleColor.Black;
var msg = str.Substring(msgIndex);
var fullmsg = string.Join("", colors.Select(x => x.Substring(Math.Min(x.Length, 2))));
OnMessageLogged(msg, level, type, DateTime.Now, fullmsg);
}
}
catch (Exception e)
{
Console.CursorTop = 0;
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Error logging message: " + e);
Console.ForegroundColor = ConsoleColor.Gray;
}
}
/// <summary>
/// Log a message with the specified level, type, and color.
/// See https://www.pyratron.com/assets/consolehex.png for hex codes that can be used in the message.
/// </summary>
public static void Log(LogLevel level, LogType type, ConsoleColor color, string message, params object[] args)
=> Log(level, type, message, color, ConsoleColor.Black, args);