from __future__ import annotations

import discord
from discord import app_commands

import config


def is_bot_admin(member: discord.Member) -> bool:
    """Return True if the member has the configured bot-admin role for their guild."""
    role_id = config.BOT_ADMIN_ROLES.get(member.guild.id)
    if role_id is None:
        return False
    return any(r.id == role_id for r in member.roles)


def bot_admin_check():
    """Slash-command check decorator: raises MissingPermissions if not a bot admin."""
    def predicate(interaction: discord.Interaction) -> bool:
        member = interaction.user
        if not isinstance(member, discord.Member):
            raise app_commands.MissingPermissions(["bot_admin"])
        if not is_bot_admin(member):
            raise app_commands.MissingPermissions(["bot_admin"])
        return True

    return app_commands.check(predicate)