from datetime import datetime
from typing import Optional, List
from pydantic import BaseModel


class PostCreateRequest(BaseModel):
    date: datetime
    topic: str
    generation_ids: List[str] = []
    project_id: Optional[str] = None


class PostUpdateRequest(BaseModel):
    date: Optional[datetime] = None
    topic: Optional[str] = None


class AddGenerationsRequest(BaseModel):
    generation_ids: List[str]