"""
User Models for Authentication
Pydantic models for user registration, login, and responses
"""

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


class UserRegister(BaseModel):
    """User registration request"""
    email: EmailStr
    password: str = Field(..., min_length=6, max_length=100)
    full_name: str = Field(..., min_length=2, max_length=100)
    
    class Config:
        json_schema_extra = {
            "example": {
                "email": "user@example.com",
                "password": "SecurePass123",
                "full_name": "John Doe"
            }
        }


class UserLogin(BaseModel):
    """User login request"""
    email: EmailStr
    password: str
    
    class Config:
        json_schema_extra = {
            "example": {
                "email": "user@example.com",
                "password": "SecurePass123"
            }
        }


class UserResponse(BaseModel):
    """User response (without password)"""
    user_id: str
    email: str
    full_name: str
    created_at: datetime
    
    class Config:
        json_schema_extra = {
            "example": {
                "user_id": "abc-123",
                "email": "user@example.com",
                "full_name": "John Doe",
                "created_at": "2025-10-28T20:00:00"
            }
        }


class Token(BaseModel):
    """JWT Token response"""
    access_token: str
    token_type: str = "bearer"
    user: UserResponse


class TokenData(BaseModel):
    """Data stored in JWT token"""
    user_id: Optional[str] = None
    email: Optional[str] = None