73 lines
2.3 KiB
C#
73 lines
2.3 KiB
C#
using System.Text;
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namespace Nerd_STF
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{
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public class Logger
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{
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public event Action<LogMessage> OnMessageRecieved = DefaultLogHandler;
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public LogMessage[] Cache => msgs.ToArray();
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public int CacheSize = 64;
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public List<LogSeverity> IncludeSeverities = new()
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{
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LogSeverity.Warning,
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LogSeverity.Error,
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LogSeverity.Fatal,
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};
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public Stream? LogStream;
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public int WriteSize;
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private readonly List<LogMessage> msgs;
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private readonly List<string> writeCache;
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public Logger(Stream? logStream = null, int cacheSize = 64, int writeSize = 1)
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{
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CacheSize = cacheSize;
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LogStream = logStream;
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WriteSize = writeSize;
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msgs = new(CacheSize);
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writeCache = new();
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}
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public void Send(LogMessage msg)
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{
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if (!IncludeSeverities.Contains(msg.Severity)) return;
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msgs.Insert(0, msg);
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writeCache.Add(msg.ToString());
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while (msgs.Count > CacheSize) msgs.RemoveAt(CacheSize);
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OnMessageRecieved(msg);
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if (writeCache.Count >= WriteSize && LogStream != null)
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{
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string s = "";
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foreach (string cache in writeCache) s += cache + "\n" + (cache.Contains('\n') ? "\n" : "");
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LogStream.Write(Encoding.Default.GetBytes(s));
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LogStream.Flush();
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writeCache.Clear();
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}
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}
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public static void DefaultLogHandler(LogMessage msg)
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{
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ConsoleColor color = msg.Severity switch
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{
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LogSeverity.Debug => ConsoleColor.DarkGray,
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LogSeverity.Information => ConsoleColor.White,
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LogSeverity.Warning => ConsoleColor.DarkYellow,
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LogSeverity.Error => ConsoleColor.Red,
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LogSeverity.Fatal => ConsoleColor.DarkRed,
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_ => throw new ArgumentException("Unknown log severity " + msg.Severity, nameof(msg)),
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};
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ConsoleColor originalCol = Console.ForegroundColor;
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Console.ForegroundColor = color;
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Console.WriteLine(msg.ToString());
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Console.ForegroundColor = originalCol;
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}
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}
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}
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