import json
import logging

__all__ = ["Config"]

from typing import List, Dict

import discord

from tuxbot.core.data_manager import data_path

log = logging.getLogger("tuxbot.config")


class Config:
    def __init__(
            self,
            cog_instance: str = None
    ):
        self._cog_instance = cog_instance

    def __getitem__(self, item) -> Dict:
        path = data_path(self._cog_instance)

        if item != 'core':
            path = path / 'cogs' / item
        else:
            path /= 'core'

        settings_file = path / 'settings.json'

        if not settings_file.exists():
            raise FileNotFoundError(f"Unable to find settings file "
                                    f"'{settings_file}'")
        else:
            with settings_file.open('r') as f:
                return json.load(f)

    def __call__(self, item):
        return self.__getitem__(item)

    def owner_ids(self) -> List[int]:
        return self.__getitem__('core').get('owner_ids')

    def token(self) -> str:
        return self.__getitem__('core').get('token')

    def get_prefixes(self, guild: discord.Guild) -> List[str]:
        core = self.__getitem__('core')
        prefixes = core\
            .get('guild', {}) \
            .get(guild.id, {}) \
            .get('prefixes', [])

        return prefixes