From 0ca307f372c14e34e37413b9c2b11444041eeef2 Mon Sep 17 00:00:00 2001
From: Slavasil <subvia@proton.me>
Date: Mon, 21 Apr 2025 01:15:10 +0300
Subject: [PATCH] add file logging

---
 SimpleTGBot/Logging/FileSink.cs | 22 ++++++++++++++++++++++
 SimpleTGBot/Program.cs          |  1 +
 2 files changed, 23 insertions(+)
 create mode 100644 SimpleTGBot/Logging/FileSink.cs

diff --git a/SimpleTGBot/Logging/FileSink.cs b/SimpleTGBot/Logging/FileSink.cs
new file mode 100644
index 0000000..411b49f
--- /dev/null
+++ b/SimpleTGBot/Logging/FileSink.cs
@@ -0,0 +1,22 @@
+namespace SimpleTGBot.Logging;
+
+internal class FileSink : ILogSink
+{
+    StreamWriter file;
+
+    public FileSink(string filename)
+    {
+        file = new StreamWriter(filename, true);
+    }
+
+    public void Log(DateTime time, LogLevel level, string message)
+    {
+        foreach (string line in message.Split(Environment.NewLine))
+            file.WriteLine($"({time:u}) [{level.GetName()}] {line}");
+    }
+
+    public void Dispose()
+    {
+        file.Dispose();
+    }
+}
diff --git a/SimpleTGBot/Program.cs b/SimpleTGBot/Program.cs
index 71c6b3f..45b7e8f 100644
--- a/SimpleTGBot/Program.cs
+++ b/SimpleTGBot/Program.cs
@@ -39,6 +39,7 @@ public static class Program
         using (Logger logger = new Logger())
         {
             logger.Sinks.Add(new StdoutSink());
+            logger.Sinks.Add(new FileSink("dembot.log"));
             TelegramBot telegramBot = new TelegramBot(botToken, logger, db);
             await telegramBot.Run();
         }