from .event import async_call_later as async_call_later
from _typeshed import Incomplete
from collections.abc import Generator
from contextlib import contextmanager
from contextvars import ContextVar
from dataclasses import dataclass, field
from datetime import datetime
from homeassistant.const import EVENT_HOMEASSISTANT_STOP as EVENT_HOMEASSISTANT_STOP
from homeassistant.core import CALLBACK_TYPE as CALLBACK_TYPE, Event as Event, HassJob as HassJob, HassJobType as HassJobType, HomeAssistant as HomeAssistant, callback as callback
from homeassistant.util import dt as dt_util
from homeassistant.util.hass_dict import HassKey as HassKey
from homeassistant.util.ulid import ulid_now as ulid_now, ulid_to_bytes as ulid_to_bytes

DATA_CHAT_SESSION: HassKey[dict[str, ChatSession]]
DATA_CHAT_SESSION_CLEANUP: HassKey[SessionCleanup]
CONVERSATION_TIMEOUT: Incomplete
LOGGER: Incomplete
current_session: ContextVar[ChatSession | None]

@dataclass
class ChatSession:
    conversation_id: str
    last_updated: datetime = field(default_factory=dt_util.utcnow)
    _cleanup_callbacks: list[CALLBACK_TYPE] = field(default_factory=list)
    @callback
    def async_updated(self) -> None: ...
    @callback
    def async_on_cleanup(self, cb: CALLBACK_TYPE) -> None: ...
    @callback
    def async_cleanup(self) -> None: ...

class SessionCleanup:
    unsub: CALLBACK_TYPE | None
    hass: Incomplete
    cleanup_job: Incomplete
    def __init__(self, hass: HomeAssistant) -> None: ...
    @callback
    def schedule(self) -> None: ...
    @callback
    def _on_hass_stop(self, event: Event) -> None: ...
    @callback
    def _cleanup(self, now: datetime) -> None: ...

@contextmanager
def async_get_chat_session(hass: HomeAssistant, conversation_id: str | None = None) -> Generator[ChatSession]: ...
