fix: asyncio aufrufe abbrechen, damit nicht mehrere tasks gleichzeitig laufen

src/handlers.py

@@ -29,7 +29,7 @@ async def announcer(bot, announcement):
         return
 
 
-async def rename_vc(bot: discord.Bot):
+async def rename_vc(bot: discord.Bot, from_scheduler: bool = False):
     global current, train_name, train_info, train_type, _scheduled_task
 
     guild = bot.get_guild(int(config["server"]))
@@ -42,6 +42,9 @@ async def rename_vc(bot: discord.Bot):
         logger(f"Es konnte kein VC mit der ID {config['vc']} auf dem Server gefunden werden", "fatal")
         return False
 
+    if not from_scheduler and _scheduled_task and not _scheduled_task.done():
+        _scheduled_task.cancel()
+
     attempt = 0
     while True:
         if attempt == 20:
@@ -75,7 +78,6 @@ async def rename_vc(bot: discord.Bot):
     arrival = datetime.fromisoformat((train_info["arrival"]))
     formatting = get_channel_formatting(train_type)
 
-    _scheduled_task = asyncio.create_task(_schedule_next_umstieg(bot, arrival))
 
     print("-----------------------------------------")
     logger(f"Umstieg: {train_name}")
@@ -89,6 +91,8 @@ async def rename_vc(bot: discord.Bot):
     if config.get("announcements", True):
         await announcer(bot, "umstieg")
 
+    _scheduled_task = asyncio.create_task(_schedule_next_umstieg(bot, arrival))
+
     return True
 
 async def _schedule_next_umstieg(bot, arrival):
@@ -109,4 +113,4 @@ async def _schedule_next_umstieg(bot, arrival):
             await asyncio.sleep(wait_seconds)
 
     logger("Zug angekommen, wähle neue Verbindung...")
-    await rename_vc(bot)
+    await rename_vc(bot, from_scheduler=True)