cogs/BotManagement: BotManagement as singleton in order to easily access it in teardown() callback (just because I can, ofc it can be solved in less complecated way)

But I noted it already implemented and being uncommitted for months so here we go

cogs/BotManagement.py

@@ -11,10 +11,27 @@ from typing import Optional, Coroutine
 from loguru import logger
 
 
-class BotManagement(commands.Cog):
+class SingletonBase:
+    def __new__(cls, *args, **kwargs):
+        if getattr(cls, 'instance') is None:
+            cls.instance = super().__new__(cls, *args, **kwargs)
+
+        # logger.debug(id(getattr(cls, 'instance')))
+        return getattr(cls, 'instance')
+
+
+class BotManagement(commands.Cog, SingletonBase):
+    instance: Optional['BotManagement'] = None
+
     rfoo_server_thread: Optional[Thread] = None
     rfoo_server: Optional[rfoo.InetServer] = None
 
+    # def __new__(cls, *args, **kwargs):
+    #     if cls.instance is None:
+    #         cls.instance = super().__new__(cls, *args, **kwargs)
+    #
+    #     return cls.instance
+
     def __init__(self, bot: commands.Bot):
         self.bot = bot
 
@@ -30,15 +47,31 @@ class BotManagement(commands.Cog):
         text_table = format_table(((it.guild.name,) for it in self.bot.voice_clients))
         await ctx.channel.send(text_table)
 
-    @commands.is_owner()
-    @commands.command('rfooStart')
-    async def start(self, ctx: Context):
+    def start_rfoo(self) -> bool:
+        # True if started, False if already started
         if self.rfoo_server_thread is None:
             self.rfoo_server = rfoo.InetServer(rconsole.ConsoleHandler, {'bot': self.bot, 'ct': self.ct})
             self.rfoo_server_thread = Thread(target=lambda: self.rfoo_server.start(rfoo.LOOPBACK, 54321))
             self.rfoo_server_thread.daemon = True
             self.rfoo_server_thread.start()
             logger.info('Rfoo thread started by msg')
+            return True
+
+        return False
+
+    def stop_rfoo(self) -> bool:
+        if self.rfoo_server_thread is not None:
+            self.rfoo_server.stop()
+            del self.rfoo_server_thread
+            logger.info('Rfoo thread stopped by msg')
+            return True
+
+        return False
+
+    @commands.is_owner()
+    @commands.command('rfooStart')
+    async def start(self, ctx: Context):
+        if self.start_rfoo():
             await ctx.send('Rfoo thread started')
 
         else:
@@ -47,10 +80,7 @@ class BotManagement(commands.Cog):
     @commands.is_owner()
     @commands.command('rfooStop')
     async def stop(self, ctx: Context):
-        if self.rfoo_server_thread is not None:
-            self.rfoo_server.stop()
-            del self.rfoo_server_thread
-            logger.info('Rfoo thread stopped by msg')
+        if self.stop_rfoo():
             await ctx.send('Rfoo server stopped')
 
         else:
@@ -73,5 +103,10 @@ class BotManagement(commands.Cog):
             return task.exception()
 
 
-async def setup(bot):
+async def setup(bot: commands.Bot):
     await bot.add_cog(BotManagement(bot))
+
+
+async def teardown(bot):
+    stop_res = BotManagement(bot).stop_rfoo()
+    logger.info(f'Unloaded rfoo with result {stop_res} during BotManagement unload')