from datetime import timedelta
from typing import Annotated

from fastapi import APIRouter, Depends, HTTPException, status
from fastapi.security import OAuth2PasswordRequestForm

from app.config import Settings
from app.logic.user_logic import (
    authenticate_user,
    create_access_token,
    get_current_user,
)
from app.models.token import Token
from app.models.user import User

router = APIRouter(prefix="/users", tags=["users"])


@router.get("/")
def get_default():
    return {"message": "Root for Users API"}


@router.get("/me")
async def read_me(current_user: Annotated[User, Depends(get_current_user)]):
    return current_user


@router.post("/token")
async def login_for_access_token(
    form_data: Annotated[OAuth2PasswordRequestForm, Depends()],
) -> Token:
    user = authenticate_user(form_data.username, form_data.password)
    if not user:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Incorrect username or password",
            headers={"WWW-Authenticate": "Bearer"},
        )
    access_token_expires = timedelta(minutes=Settings.access_token_expire_minutes)
    access_token = create_access_token(
        data={"sub": user.username},
        expires_delta=access_token_expires,
    )
    return Token(access_token=access_token, token_type="bearer")