import shlex
from typing import List
import discord
import yaml


class Frank(discord.Client):
    PREFIX = "fr"

    def __init__(self, modules: List["Module"], config_file: str = "frank.yaml"):
        super().__init__()
        self._modules = modules
        self._loaded_modules = []

        try:
            with open(config_file, "r") as f:
                self._config = yaml.load(f, Loader=yaml.FullLoader)

        except FileNotFoundError:
            self._config = None

    async def on_ready(self):
        print("Connected")

        # Startup all modules
        for module in self._modules:
            if self._config and module.NAME in self._config:
                loaded = module(self, config=self._config[module.NAME])

            else:
                loaded = module(self)

            await loaded.start()
            self._loaded_modules.append(loaded)

        print("All modules loaded")

    async def on_message(self, message: str):
        cmd = shlex.split(message.content.strip())

        if cmd[0] == "fr":
            matched_mods = (mod for mod in self._loaded_modules if mod.PREFIX == cmd[1])
            module = next(matched_mods, None)

            if module:
                await module.command(cmd[2:])