bot.py

import os

import discord
from dotenv import load_dotenv
import random
from discord.ext import commands

load_dotenv()
TOKEN = os.getenv('DISCORD_TOKEN')
GUILD = os.getenv('DISCORD_GUILD')

client = discord.Client()

bot = commands.Bot(command_prefix='e!')

# Detecting when someone joins the server
# Utility Functions running on boot up
@client.event
async def on_ready():
    guild = discord.utils.get(client.guilds, name=GUILD)

    print(
        f'{client.user} is connected to the following guild:\n'
        f'{guild.name}(id: {guild.id})\n'
    )

    members = '\n - '.join([member.name for member in guild.members])
    print(f'Guild Members:\n - {members}')

# Welcoming new members
@client.event
async def on_member_join(member):
    await member.create_dm()
    await member.dm_channel.send(
        f'Hi {member.name}, welcome to ACM UCM server!'
    )

# Responding to Messages
@client.event
async def on_message(message):
    if message.author == client.user:
        return

    brooklyn_99_quotes = [
        'I\'m the human form of the 💯 emoji.',
        'Bingpot!',
        (
            'Cool. Cool cool cool cool cool cool cool, '
            'no doubt no doubt no doubt no doubt.'
        ),
    ]

    if message.content == '99!':
        response = random.choice(brooklyn_99_quotes)
        await message.channel.send(response)
    elif 'happy birthday' in message.content.lower():
        await message.channel.send('Happy Birthday! 🎈🎉')
    elif message.content == 'raise-exception':
        raise discord.DiscordException

# Error handling
@client.event
async def on_error(event, *args, **kwargs):
    with open('err.log', 'a') as f:
        if event == 'on_message':
            f.write(f'Unhandled message: {args[0]}\n')
        else:
            raise

# On load of the Bot
@bot.event
async def on_ready():
    print(f'{bot.user.name} has connected to Discord!')

# Bot prefix + command
@bot.command(name='99', help='Responds with a random quote from Brooklyn 99')
async def nine_nine(ctx):
    brooklyn_99_quotes = [
        'I\'m the human form of the 💯 emoji.',
        'Bingpot!',
        (
            'Cool. Cool cool cool cool cool cool cool, '
            'no doubt no doubt no doubt no doubt.'
        ),
    ]

    response = random.choice(brooklyn_99_quotes)
    await ctx.send(response)

# Convert Parameters Automatically
@bot.command(name='roll_dice', help='Simulates rolling dice.')
async def roll(ctx, number_of_dice: int, number_of_sides: int):
    dice = [
        str(random.choice(range(1, number_of_sides + 1)))
        for _ in range(number_of_dice)
    ]
    await ctx.send(', '.join(dice))

# Create Channel Command
@bot.command(name='create-channel')
@commands.has_role('admin')
async def create_channel(ctx, channel_name='real-python'):
    guild = ctx.guild
    existing_channel = discord.utils.get(guild.channels, name=channel_name)
    if not existing_channel:
        print(f'Creating a new channel: {channel_name}')
        await guild.create_text_channel(channel_name)

# Bot Errors
@bot.event
async def on_command_error(ctx, error):
    if isinstance(error, commands.errors.CheckFailure):
        await ctx.send('You do not have the correct role for this command.')

bot.run(TOKEN)
client.run(TOKEN)