from pydantic import BaseModel, Field
from datetime import date

class TaskCreate(BaseModel):
    title: str = Field(..., min_length=1, max_length=255)
    description: str = Field(None, min_length=0, max_length=1000)
    due_date: date = Field(None)
    status: str = Field('pending', regex='^(pending|completed)$')

class TaskResponse(BaseModel):
    id: int
    title: str
    description: str
    due_date: date
    status: str

    class Config:
        from_attributes = True