from __future__ import annotations

from yuxi.channels.models import ChatType


def resolve_chat_type(chat_guid: str) -> ChatType:
    if ";-;" in chat_guid:
        return ChatType.GROUP
    return ChatType.DIRECT


def extract_chat_display_name(chat_data: dict) -> str:
    return chat_data.get("displayName", "")


def build_thread_key(agent_id: str, chat_guid: str) -> str:
    chat_type = "group" if ";-;" in chat_guid else "direct"
    return f"agent:{agent_id}:bluebubbles:{chat_type}:{chat_guid}"