"""Request / response models for /api/v1/chat/* routes."""

from typing import Any

from pydantic import BaseModel


class ChatRequest(BaseModel):
    user_id: str
    room_id: str
    message: str


class ChatStreamEvent(BaseModel):
    """One SSE event. Type values: `sources`, `chunk`, `done`."""
    event: str
    data: dict[str, Any]