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


class UsuarioBase(BaseModel):
    username: str = Field(..., min_length=3, max_length=50)
    email: EmailStr
    nombre_completo: Optional[str] = Field(None, max_length=255)


class UsuarioCreate(UsuarioBase):
    password: str = Field(..., min_length=6)


class UsuarioUpdate(BaseModel):
    email: Optional[EmailStr] = None
    nombre_completo: Optional[str] = Field(None, max_length=255)
    password: Optional[str] = Field(None, min_length=6)
    is_active: Optional[bool] = None


class UsuarioResponse(UsuarioBase):
    id: int
    is_active: bool
    is_superuser: bool
    created_at: datetime
    last_login: Optional[datetime]

    class Config:
        from_attributes = True


class UsuarioInDB(UsuarioResponse):
    hashed_password: str


# Schemas de autenticación
class Token(BaseModel):
    access_token: str
    token_type: str


class TokenData(BaseModel):
    username: Optional[str] = None


class LoginRequest(BaseModel):
    username: str
    password: str