from datetime import datetime
from typing import Optional

from pydantic import BaseModel, Field


# Base schema for Todo
class TodoBase(BaseModel):
    title: str = Field(
        ..., title="The title of the todo item", min_length=1, max_length=100
    )
    description: Optional[str] = Field(None, title="The description of the todo item")
    completed: bool = Field(False, title="Whether the todo item is completed")


# Schema for creating a new Todo
class TodoCreate(TodoBase):
    pass


# Schema for updating a Todo
class TodoUpdate(BaseModel):
    title: Optional[str] = Field(
        None, title="The title of the todo item", min_length=1, max_length=100
    )
    description: Optional[str] = Field(None, title="The description of the todo item")
    completed: Optional[bool] = Field(None, title="Whether the todo item is completed")


# Schema for reading Todo information
class TodoResponse(TodoBase):
    id: int
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True