import uuid
from datetime import datetime
from typing import Optional, Annotated

from pydantic import BaseModel, Field, BeforeValidator


class OneShotConversation(BaseModel):
    q: str = Field()
    a: str = Field()
    sources: list[str] = Field()


class Conversation(BaseModel):
    id: Optional[Annotated[str, BeforeValidator(str)]] = Field(alias="_id", default=None)
    created: datetime = Field(default_factory=datetime.now)
    conversation: list[OneShotConversation] = Field()
    params: dict[str, str] = Field()