Add debug logging to category and setup command code paths

Added to help debug setup errors

Author: khakers

bot.py

@@ -432,11 +432,14 @@ def using_multiple_server_setup(self) -> bool:
     @property
     def main_category(self) -> typing.Optional[discord.CategoryChannel]:
         if self.modmail_guild is not None:
+            logger.debug(f"Resolving main category for guild {self.modmail_guild.name}")
             category_id = self.config["main_category_id"]
+            logger.debug(f"Found main category ID in config: {category_id}")
             if category_id is not None:
                 try:
                     cat = discord.utils.get(self.modmail_guild.categories, id=int(category_id))
                     if cat is not None:
+                        logger.debug(f"Resolved main category: {cat.id}")
                         return cat
                 except ValueError:
                     pass

cogs/modmail.py

@@ -42,7 +42,8 @@ async def setup(self, ctx):
             return await ctx.send(f"You can only setup in the Modmail guild: {self.bot.modmail_guild}.")
 
         if self.bot.main_category is not None:
-            logger.debug("Can't re-setup server, main_category is found.")
+            logger.warning("Can't re-setup server, main_category is found.")
+            logger.debug(f"Current main category: {self.bot.main_category.name}")
             return await ctx.send(f"{self.bot.modmail_guild} is already set up.")
 
         if self.bot.modmail_guild is None: