"""Authentication models for user management"""
from pydantic import BaseModel, EmailStr, Field
from typing import Optional
from datetime import datetime


class UserCreate(BaseModel):
    """Schema for user registration"""
    username: str = Field(..., min_length=3, max_length=50)
    email: Optional[EmailStr] = None
    password: str = Field(..., min_length=6)
    full_name: Optional[str] = None


class UserLogin(BaseModel):
    """Schema for user login"""
    username: str
    password: str


class User(BaseModel):
    """Schema for user data"""
    id: str
    username: str
    email: Optional[str] = None
    full_name: Optional[str] = None
    is_active: bool = True
    created_at: datetime
    last_login: Optional[datetime] = None


class Token(BaseModel):
    """Schema for authentication token"""
    access_token: str
    token_type: str = "bearer"


class UserInDB(User):
    """Schema for user stored in database (with hashed password)"""
    hashed_password: str