"""Authentication Pydantic schemas."""
from datetime import datetime
from typing import Optional

from pydantic import BaseModel, ConfigDict, EmailStr, Field


class UserRegister(BaseModel):
    """Request model for user registration."""

    username: str = Field(..., min_length=3, max_length=50)
    email: EmailStr
    password: str = Field(..., min_length=6)


class UserLogin(BaseModel):
    """Request model for user login."""

    username: str
    password: str


class Token(BaseModel):
    """Response model for JWT token."""

    access_token: str
    token_type: str = "bearer"


class UserResponse(BaseModel):
    """Response model for user data."""

    id: int
    username: str
    email: str
    avatar_url: Optional[str] = "/static/default-avatar.png"
    bio: Optional[str] = ""
    created_at: datetime

    model_config = ConfigDict(from_attributes=True)