from __future__ import annotations

from typing import TYPE_CHECKING, Protocol, runtime_checkable

if TYPE_CHECKING:
    from yuxi.channels.models import DeliveryResult


@runtime_checkable
class ChannelStreamingProtocol(Protocol):
    @property
    def streaming_modes(self) -> list[str]: ...

    @property
    def block_streaming(self) -> bool: ...

    async def send_stream_chunk(self, chat_id: str, msg_id: str, chunk: str, finished: bool) -> DeliveryResult: ...