from pydantic import BaseModel, Field
from datetime import date

class TaskCreate(BaseModel):
    title: str = Field(..., min_length=1, max_length=255)
    description: str | None = Field(None, max_length=255)
    due_date: date | None = Field(None)
    status: str = Field('pending', regex='^(pending|completed)$')

class TaskResponse(BaseModel):
    id: int
    title: str
    description: str | None
    due_date: date | None
    status: str

    class Config:
        from_attributes = True