import discord
import config
from command_utils import command, CommandClient


class Client(CommandClient):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.meta_channel = None
        self.lobby_channel = None

    async def on_ready(self):
        print(f'the bot {config.NAME} is logged in as "{self.user}"')

    @command(
        names = ('help', 'hepl', 'h', '?'),
        description = 'display this help message',
        is_help = True
    )
    async def help(self, ctx):
        command_doc = '\n'.join(
                f' * {config.COMMAND_PREFIX.strip()} {c.names[0]:15} - {c.description}'
                for c in self.get_commands())
        await ctx.answer(f'''```
{config.HELP_TEXT}\nThese are all available commands:\n{command_doc}```''')

    async def create_category(self, ctx):
        category = await ctx.guild.create_category(config.CATEGORY_CHANNEL_NAME)
        await ctx.answer(f'info: category created "{category}" ({category.id})')
        return category

    async def create_lobby(self, ctx):
        lobby = await ctx.guild.create_voice_channel(config.LOBBY_CHANNEL_NAME, topic=config.LOBBY_CHANNEL_TOPIC, category=self.meta_channel)
        await ctx.answer(f'info: voice channel created "{lobby}" ({lobby.id})')
        return lobby

    @command(
        names = ('init', 'create', 'inti', 'craete', 'cretae', 'c', 'i', '+'),
        description = 'create a new lobby'
    )
    async def init(self, ctx):
        self.meta_channel = (
            self.meta_channel
            or discord.utils.get(ctx.guild.categories, name=config.CATEGORY_CHANNEL_NAME)
            or await self.create_category(ctx)
        )
        self.lobby_channel = (
            self.lobby_channel
            or discord.utils.get(ctx.guild.voice_channels, name=config.LOBBY_CHANNEL_NAME, category=self.meta_channel)
            or await self.create_lobby(ctx)
        )


if __name__ == '__main__':
    from os import getenv
    token = getenv(config.TOKEN_ENV_VAR)
    if token is None:
        print('error: no token was given')
        exit(1)
    bot = Client(activity=discord.Game(name=config))
    bot.run(token)