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

class UserBase(BaseModel):
    username: str = Field(..., min_length=3, max_length=50)
    email: EmailStr = Field(...)

class UserCreate(UserBase):
    password: str = Field(..., min_length=8, max_length=100)

    class Config:
        schema_extra = {
            "example": {
                "username": "johndoe",
                "email": "john@example.com",
                "password": "securepass123"
            }
        }

class UserResponse(UserBase):
    is_active: bool = True
    is_logged_in: bool = False
    last_logout: Optional[datetime] = None
    session_token: Optional[str] = None

    class Config:
        orm_mode = True
        schema_extra = {
            "example": {
                "username": "johndoe",
                "email": "john@example.com",
                "is_active": True,
                "is_logged_in": False,
                "last_logout": "2023-01-01T00:00:00",
                "session_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9"
            }
        }