from __future__ import annotations

from core.protocol import IncomingCommand, OutgoingMessage


async def handle_new_chat(
    event: IncomingCommand, auth_mgr, platform, chat_mgr, settings_mgr
) -> list:
    if not await auth_mgr.is_authenticated(event.user_id):
        return [OutgoingMessage(chat_id=event.chat_id, text="Введите !start чтобы начать.")]

    name = " ".join(event.args).strip() if event.args else ""
    chats = await chat_mgr.list_active(event.user_id)
    chat_id = f"C{len(chats) + 1}"
    ctx = await chat_mgr.get_or_create(
        user_id=event.user_id,
        chat_id=chat_id,
        platform=event.platform,
        surface_ref=event.chat_id,
        name=name or None,
    )
    return [
        OutgoingMessage(
            chat_id=event.chat_id, text=f"Создан чат: {ctx.display_name} ({ctx.chat_id})"
        )
    ]


async def handle_list_chats(
    event: IncomingCommand, auth_mgr, platform, chat_mgr, settings_mgr
) -> list:
    chats = await chat_mgr.list_active(event.user_id)
    if not chats:
        return [OutgoingMessage(chat_id=event.chat_id, text="Нет активных чатов.")]
    lines = [f"• {c.display_name} ({c.chat_id})" for c in chats]
    return [OutgoingMessage(chat_id=event.chat_id, text="\n".join(lines))]


async def handle_rename(event: IncomingCommand, auth_mgr, platform, chat_mgr, settings_mgr) -> list:
    if not event.args:
        return [OutgoingMessage(chat_id=event.chat_id, text="Укажите название: !rename Название")]
    ctx = await chat_mgr.rename(event.chat_id, " ".join(event.args), user_id=event.user_id)
    return [OutgoingMessage(chat_id=event.chat_id, text=f"Переименован в: {ctx.display_name}")]


async def handle_archive(
    event: IncomingCommand, auth_mgr, platform, chat_mgr, settings_mgr
) -> list:
    await chat_mgr.archive(event.chat_id, user_id=event.user_id)
    return [OutgoingMessage(chat_id=event.chat_id, text="Чат архивирован.")]