py-cord dynamically adding commands example

reaction_gifs.py

from typing import Optional
import discord
from discord.ext import commands
from nekosbest import Client as NekosBestClient

nekos_best_client = NekosBestClient()


class Reaction:
    def __init__(self, name: str, action: str = None, user_menu: bool = False, no_mention: str = None, mention: str = None):
        self.no_mention = no_mention
        self.mention = mention
        self.action = action
        self.name = name
        self.user_menu = user_menu


def add_commands(reaction: Reaction, bot: commands.Bot) -> None:
    async def base_command(ctx, user: discord.Member = None):
        no_mention_msg = reaction.no_mention
        mention_msg = reaction.mention

        if user and mention_msg:
            message = mention_msg.format(author=ctx.author.mention, user=user.mention)
        else:
            message = no_mention_msg.format(author=ctx.author.mention)

        result = await nekos_best_client.get_image(reaction.name)

        embed = discord.Embed(description=f"**{message}**", colour=discord.Colour(0x1d97c))
        embed.set_image(url=result.url)
        await ctx.send(embed=embed, content=user.mention if user else None)

    if reaction.mention and reaction.no_mention:
        async def func(ctx, user: Optional[discord.Member]) -> None:
            await base_command(ctx, user)
    elif reaction.mention:
        async def func(ctx, user: discord.Member) -> None:
            await base_command(ctx, user)
    else:
        async def func(ctx) -> None:
            await base_command(ctx)

    bot.add_command(commands.Command(name=reaction.name, func=func))
    bot.application_command(name=reaction.name, clas=discord.SlashCommand)(func)
    if reaction.user_menu:
        bot.application_command(name=reaction.action, cls=discord.UserCommand)(func)


reaction_gifs = {
    Reaction(name="hug", action="Hug", mention="{author} gave {user} a warm fuzzy hug 😊", user_menu=True),
    Reaction(name="pat", action="Pat", mention="{author} patted {user}'s head 🥺", user_menu=True),
    Reaction(name="poke", action="Poke", mention="{author} poked {user} 🤠", user_menu=True),
    Reaction(name="kiss", action="Kiss", mention="{author} kissed {user} 😳", user_menu=True),
    Reaction(name="slap", action="Slap", mention="{author} slapped {user} 🤗", user_menu=True),
    Reaction(name="facepalm", action="Facepalm", no_mention="{author} is very disappointed 🤦‍"),
    Reaction(name="thumbsup", action="Thumbs up", no_mention="{author} 👍"),
    Reaction(name="smile", action="Smile", no_mention="{author} smiles 🙂", mention="{author} smiles at {user} 🙂"),
    Reaction(name="wave", action="Wave", no_mention="{author} waves 👋", mention="{author} waved at {user} 👋"),
    Reaction(name="shrug", action="Shrug", no_mention="{author} shrugs 🤷‍", mention="{author} shrugs at {user} 🤷"),
}


class ReactionGifs(commands.Cog):
    def __init__(self, bot: commands.bot):
        print("Loading ReactionGif")
        self.bot = bot
        for reaction in reaction_gifs:
            add_commands(reaction, self.bot)
        print("Loaded ReactionGif")


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