kiafumi/commands/moderation.py

import discord.commands
from discord.ext import commands
import datetime

class Moderation(commands.Cog, name="Moderation"):
    def __init__(self, bot):
       self.bot = bot

    @commands.Cog.listener()
    async def on_member_join(self, member):
        guild = member.guild
        if guild.system_channel is not None:
            embed = discord.Embed(color=discord.Color.green(), description=f"{member.mention} | **Joined Discord**: {member.created_at.date()}", timestamp=datetime.datetime.now())
            embed.set_author(name=f"{member} ({member.id})", icon_url=f"{member.display_avatar.url}?128")
            embed.set_footer(text="User Left")
            await guild.system_channel.send(embeds=[embed])

    @commands.Cog.listener()
    async def on_member_remove(self, member):
        guild = member.guild
        if guild.system_channel is not None:
            embed = discord.Embed(color=discord.Color.red(), description=f"{member.mention} | **Joined Server**: {member.joined_at.date()}", timestamp=datetime.datetime.now())
            embed.set_author(name=f"{member} ({member.id})", icon_url=f"{member.display_avatar.url}?128")
            embed.set_footer(text="User Left")
            await guild.system_channel.send(embeds=[embed])

def setup(bot):
    bot.add_cog(Moderation(bot))