from datetime import datetime

from pydantic import BaseModel, EmailStr, Field


class UserBase(BaseModel):
    """Base user schema."""

    email: EmailStr
    username: str
    is_active: bool = True


class UserCreate(BaseModel):
    """User schema for creating new users."""

    email: EmailStr
    username: str
    password: str = Field(..., min_length=8)


class UserUpdate(BaseModel):
    """User schema for updating users."""

    email: EmailStr | None = None
    username: str | None = None
    password: str | None = Field(None, min_length=8)
    is_active: bool | None = None


class UserInDBBase(UserBase):
    """Base user schema with DB fields."""

    id: int
    created_at: datetime
    updated_at: datetime

    class Config:
        """Configuration for Pydantic model."""

        from_attributes = True


class User(UserInDBBase):
    """User model returned to the client
    """

    pass


class UserInDB(UserInDBBase):
    """User model with password stored in DB
    """

    hashed_password: str