63 lines
2.3 KiB
C#
63 lines
2.3 KiB
C#
using Discord;
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using System.Reflection;
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using System.Text;
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namespace RegexBot.Services.Logging;
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/// <summary>
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/// Implements program-wide logging.
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/// </summary>
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class LoggingService : Service {
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// NOTE: Service.Log's functionality is implemented here. DO NOT use within this class.
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private readonly string _logBasePath;
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internal LoggingService(RegexbotClient bot) : base(bot) {
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_logBasePath = Path.GetDirectoryName(Assembly.GetEntryAssembly()!.Location)
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+ Path.DirectorySeparatorChar + "logs";
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try {
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if (!Directory.Exists(_logBasePath)) Directory.CreateDirectory(_logBasePath);
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Directory.GetFiles(_logBasePath);
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} catch (Exception ex) when (ex is IOException or UnauthorizedAccessException) {
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throw new Exception("Cannot create or access logging directory.");
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}
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bot.DiscordClient.Log += DiscordClient_Log;
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}
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/// <summary>
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/// Discord.Net logging events handled here.
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/// Only events with high importance are stored. Others are just printed to console.
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/// </summary>
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private Task DiscordClient_Log(LogMessage arg) {
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var msg = $"[{Enum.GetName(typeof(LogSeverity), arg.Severity)}] {arg.Message}";
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if (arg.Exception != null) msg += arg.Exception.ToString();
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switch (arg.Message) { // Prevent webhook logs for these 'important' Discord.Net messages
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case "Connecting":
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case "Connected":
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case "Ready":
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case "Disconnecting":
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case "Disconnected":
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case "Resumed previous session":
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case "Failed to resume previous session":
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break;
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}
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DoLog("Discord.Net", msg);
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return Task.CompletedTask;
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}
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// Hooked
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internal void DoLog(string source, string? message) {
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message ??= "(null)";
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var now = DateTimeOffset.Now;
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var output = new StringBuilder();
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var prefix = $"[{now:s}] [{source}] ";
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foreach (var line in message.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None)) {
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output.Append(prefix).AppendLine(line);
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}
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var outstr = output.ToString();
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Console.Write(outstr);
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var filename = _logBasePath + Path.DirectorySeparatorChar + $"{now:yyyy-MM}.log";
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File.AppendAllText(filename, outstr, Encoding.UTF8);
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}
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}
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