python-app-rocketbot/cogs/config.py

from discord import Guild, TextChannel
from discord.ext import commands
from storage import StateKey, Storage
from cogs.base import BaseCog

class ConfigCog(BaseCog):
	"""
	Cog for handling general bot configuration.
	"""
	def __init__(self, bot):
		self.bot = bot

	@commands.group(
		brief='Manages general bot configuration'
	)
	@commands.has_permissions(ban_members=True)
	@commands.guild_only()
	async def config(self, context: commands.Context):
		'Command group'
		if context.invoked_subcommand is None:
			await context.send_help()

	@config.command(
		name='setwarningchannel',
		brief='Sets the channel where mod warnings are posted',
		description='Run this command in the channel where bot messages ' +
			'intended for server moderators should be sent. Other bot messages ' +
			'may still be posted in the channel a command was invoked in. If ' +
			'no output channel is set, mod-related messages will not be posted!',
	)
	async def config_setwarningchannel(self, context: commands.Context):
		'Command handler'
		guild: Guild = context.guild
		channel: TextChannel = context.channel
		self.save_setting(guild, StateKey.WARNING_CHANNEL_ID, context.channel.id)
		await context.message.reply(f'Warning channel set to {channel.name}', mention_author=False)