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- from collections import defaultdict
- from dataclasses import dataclass, field
- from typing import Dict, Set
-
- from paircd.client import Client
- from paircd.message import Message
-
-
- @dataclass
- class Channel:
- name: str
- topic: str = ""
- modes: Set[str] = field(default_factory=lambda: {"t"})
- clients_by_nick: Dict[str, Client] = field(default_factory=dict)
- modes_by_nick: Dict[str, Set[str]] = field(default_factory=lambda: defaultdict(set))
-
- def add_client(self, client: Client) -> None:
- self.clients_by_nick[client.nickname] = client
- if len(self.clients_by_nick) == 1:
- self.modes_by_nick[client.nickname].add("o")
-
- def remove_client_by_nick(self, nick: str) -> None:
- del self.clients_by_nick[nick]
- del self.modes_by_nick[nick]
-
- def write_message(self, msg: Message) -> None:
- for client in self.clients_by_nick.values():
- # Don't broadcast client's messages back to themselves
- if msg.cmd == "PRIVMSG" and msg.prefix == client.id():
- continue
- client.write_message(msg)
-
- def get_modes(self) -> Set[str]:
- return self.modes
-
- def get_mode_settings(self) -> str:
- return f"+{''.join(sorted(self.modes))}"
-
- def get_user_modes_by_nick(self, nick: str) -> Set[str]:
- return self.modes_by_nick[nick]
-
- def get_channel_name(self, nick: str) -> str:
- modes = self.get_user_modes_by_nick(nick)
- if "o" in modes:
- return f"@{nick}"
- if "v" in modes:
- return f"+{nick}"
- return nick
-
- def get_channel_size(self) -> int:
- return len(self.clients_by_nick)
-
- def rename_client(self, name: str, new_name: str) -> None:
- if name not in self.clients_by_nick:
- raise KeyError(f"No client on channel with nick {name}")
- if new_name in self.clients_by_nick:
- raise KeyError(f"Client already exists with nick {new_name}")
- self.clients_by_nick[new_name] = self.clients_by_nick[name]
- del self.clients_by_nick[name]
- self.modes_by_nick[new_name] = self.modes_by_nick[name]
- del self.modes_by_nick[name]
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