from datetime import datetime from typing import Optional from pydantic import BaseModel, Field class TaskBase(BaseModel): title: str description: Optional[str] = None is_completed: bool = False priority: int = Field(1, ge=1, le=3, description="Task priority: 1=Low, 2=Medium, 3=High") due_date: Optional[datetime] = None class TaskCreate(TaskBase): pass class TaskUpdate(BaseModel): title: Optional[str] = None description: Optional[str] = None is_completed: Optional[bool] = None priority: Optional[int] = Field(None, ge=1, le=3, description="Task priority: 1=Low, 2=Medium, 3=High") due_date: Optional[datetime] = None class TaskInDBBase(TaskBase): id: int created_at: datetime updated_at: datetime class Config: from_attributes = True class Task(TaskInDBBase): pass