from __future__ import annotations
from uuid import UUID
from pydantic import BaseModel, ConfigDict
from typing import Optional

class RoomCreate(BaseModel):
    title: Optional[str] = None
    participants: list[str]  # user IDs

class RoomRead(BaseModel):
    id: UUID
    title: Optional[str] = None
    model_config = ConfigDict(from_attributes=True)

class MessageCreate(BaseModel):
    content: str

class MessageRead(BaseModel):
    id: UUID
    room_id: UUID
    sender_id: UUID
    content: str
    model_config = ConfigDict(from_attributes=True)