import uuid
from dataclasses import dataclass


@dataclass
class StreamSessionState:
    session_id: str
    channel: str = "messenger"
    stream_mode: str = "block"
    chunk_min: int = 80
    chunk_max: int = 2000
    coalesce_idle_ms: int = 500


class MessengerStreaming:
    streaming_mode = "block"
    block_streaming_enabled = True

    def create_draft_stream_session(self, **kwargs) -> StreamSessionState:
        return StreamSessionState(
            session_id=str(uuid.uuid4()),
        )