"""Pydantic schemas for authentication requests/responses."""

from typing import Optional
from pydantic import BaseModel, Field, EmailStr


class Token(BaseModel):
    """JWT token response schema."""

    access_token: str
    token_type: str = "bearer"


class TokenData(BaseModel):
    """Token payload data schema."""

    user_id: Optional[str] = None


class LoginRequest(BaseModel):
    """Login request schema."""

    username: str = Field(..., min_length=3, max_length=100)
    password: str = Field(..., min_length=1)


class RegisterRequest(BaseModel):
    """Registration request schema."""

    username: str = Field(..., min_length=3, max_length=100)
    email: EmailStr = Field(..., description="Valid email address")
    password: str = Field(..., min_length=8, description="Password must be at least 8 characters")

    class Config:
        json_schema_extra = {
            "example": {
                "username": "johndoe",
                "email": "john@example.com",
                "password": "securepassword123"
            }
        }