From b124cf8e1e7894243c2c4906b3071cd57c29b484 Mon Sep 17 00:00:00 2001
From: Conatum <cona@thewisewolf.dev>
Date: Fri, 14 Jan 2022 18:30:10 +0200
Subject: [PATCH] (timers): Destroy timers when channel is gone.

---
 bot/modules/study/timers/Timer.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/bot/modules/study/timers/Timer.py b/bot/modules/study/timers/Timer.py
index bef4aa72..88a15f4f 100644
--- a/bot/modules/study/timers/Timer.py
+++ b/bot/modules/study/timers/Timer.py
@@ -327,7 +327,7 @@ class Timer:
         Remove the timer.
         """
         # Remove timer from cache
-        self.timers.pop(self.channelid)
+        self.timers.pop(self.channelid, None)
 
         # Cancel the loop
         if self._run_task:
@@ -372,6 +372,11 @@ class Timer:
             except asyncio.CancelledError:
                 break
 
+            # Destroy the timer if our voice channel no longer exists
+            if not self.channel:
+                await self.destroy()
+                break
+
             if self._state.end < utc_now():
                 asyncio.create_task(self.notify_change_stage(self._state, self.current_stage))
             else: