import uuid
from datetime import datetime
from typing import Literal, Optional

from pydantic import BaseModel, ConfigDict, Field


class UserBase(BaseModel):
    username: str = Field(min_length=1)
    role: Literal["PM", "CRA", "PV", "IMP"]
    is_active: bool = True


class UserCreate(UserBase):
    password: str = Field(min_length=1)


class UserRead(UserBase):
    id: uuid.UUID
    created_at: datetime

    model_config = ConfigDict(from_attributes=True)


class UserInDB(UserBase):
    id: uuid.UUID
    hashed_password: str
    created_at: datetime

    model_config = ConfigDict(from_attributes=True)


class Token(BaseModel):
    access_token: str
    token_type: str = "bearer"


class TokenPayload(BaseModel):
    sub: uuid.UUID
    role: str
    exp: Optional[int] = None