from dataclasses import dataclass, field
from typing import Dict

from paircd.client import Client
from paircd.channel import Channel


@dataclass
class Server:
    clients_by_nick: Dict[str, Client] = field(default_factory=dict)
    channels_by_name: Dict[str, Channel] = field(default_factory=dict)

    def add_client(self, client: Client) -> None:
        self.clients_by_nick[client.nickname] = client

    def get_channel_by_name(self, name: str) -> Channel:
        if name not in self.channels_by_name:
            self.channels_by_name[name] = Channel(name=name)
        return self.channels_by_name[name]

    def remove_client_by_name(self, name: str) -> None:
        del self.clients_by_nick[name]