from datetime import datetime
from typing import Optional

from pydantic import BaseModel, Field


# Shared properties
class TaskBase(BaseModel):
    title: Optional[str] = None
    description: Optional[str] = None
    is_completed: Optional[bool] = False
    due_date: Optional[datetime] = None
    priority: Optional[str] = "medium"
    category_id: Optional[int] = None


# Properties to receive on task creation
class TaskCreate(TaskBase):
    title: str = Field(..., min_length=1, max_length=100)


# Properties to receive on task update
class TaskUpdate(TaskBase):
    pass


# Properties shared by models stored in DB
class TaskInDBBase(TaskBase):
    id: int
    title: str
    owner_id: int
    created_at: datetime
    updated_at: Optional[datetime] = None

    class Config:
        from_attributes = True


# Properties to return to client
class Task(TaskInDBBase):
    pass


# Properties stored in DB
class TaskInDB(TaskInDBBase):
    pass