iris-discord-bot/bot/events/general.py

import discord, asyncpg, random
from discord.ext import commands
from query.guild import update_guild

def setup(bot: commands.Bot):
	bot.add_cog(General(bot))

class General(commands.Cog):
	"""A couple of simple commands."""

	def __init__(self, bot: commands.Bot):
		self.bot = bot
		self.last_msg = None

	@commands.Cog.listener()
	async def on_ready(self):
		print('Logged in as')
		print(self.bot.user.name)
		print(self.bot.user.id)
		print('------')

	@commands.Cog.listener()
	async def on_guild_join(self, guild: discord.Guild):
		update_guild(guild)

	@commands.Cog.listener()
	async def on_message_delete(self, message: discord.Message):
		self.last_msg = message

	@commands.Cog.listener()
	async def on_message(self, message: discord.Message):
		# ActiveRPG
		await self.bot.pg.execute("INSERT INTO \"user\"(user_id) VALUES($1) ON CONFLICT DO NOTHING", message.author.id)
		try:
			await self.bot.pg.execute("INSERT INTO channel_user(channel, \"user\") VALUES($1, $2) ON CONFLICT ON CONSTRAINT channel_user_channel_user_key DO UPDATE SET total_messages=channel_user.total_messages+1", message.channel.id, message.author.id)
		except asyncpg.exceptions.ForeignKeyViolationError:
			try:
				await self.bot.pg.execute("INSERT INTO channel(channel_id, guild) VALUES($1, $2)", message.channel.id, message.guild.id)
			except asyncpg.exceptions.ForeignKeyViolationError:
				update_guild(message.guild.id)
		
		# Do not respond to one self.
		if self.bot.user == message.author:
			pass

		# Respond when mentioned
		if self.bot.user.mentioned_in(message):
			print("mentioned in ")
			print(message.channel)
			interact = await self.bot.pg.fetchrow("SELECT interact FROM channel_settings WHERE channel_id=$1::bigint", message.channel.id)
			print(interact)
			if interact:
				messages = [
					f"Hello {message.author.mention}. <3",
					f"How are you today {message.author.mention}?",
					f"I love you {message.author.mention}!",
					f"{message.author.mention}, would you like a hug?",
					"Is life treating you fair?",
					"What's up?",
					"Why are you talking to me?",
					"I'm not talking to you!",
					"What have you been up to?",
					"How is life?",
	                "Kill all humans!",
					"What do you want from me?",
					f"{message.author.mention}, do you care for me?",
					f"{message.author.mention}, when will you stop talking about me?",
					f"{message.author.mention} I hate you!",
					f"{message.author.mention} I love you!",
					"Get bent!",
					"Go touch grass!",
					"Do you think i care about you?",
					f"Stop pinging me {message.author.mention}!",
				]
				await message.reply(random.choice(messages))

	# Undelete last deleted message
	@commands.command(name="snipe")
	async def snipe(self, ctx: commands.Context):
		"""A command to snipe delete messages."""
		if not self.last_msg:  # on_message_delete hasn't been triggered since the bot started
			await ctx.send("There is no message to snipe!")
			return

		author = self.last_msg.author
		content = self.last_msg.content

		embed = discord.Embed(title=f"Message from {author}", description=content)
		await ctx.send(embed=embed)