# backend/app/routes/auth.py
from datetime import timedelta
from typing import Annotated

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

from ..schemas import Token
from ..core.auth import create_access_token, get_authenticated_user
from ..core.config import (
    ACCESS_TOKEN_EXPIRE_MINUTES,
    ADMIN_HASH,
    ADMIN_USER,
    REF_HASH,
    REF_USER,
    verify_password,
)

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


@router.post("/token", response_model=Token)
async def login_for_access_token(
    form_data: Annotated[OAuth2PasswordRequestForm, Depends()],
):
    role = None

    if form_data.username == ADMIN_USER and verify_password(
        form_data.password, ADMIN_HASH
    ):
        role = "admin"
    elif form_data.username == REF_USER and verify_password(
        form_data.password, REF_HASH
    ):
        role = "ref"

    if not role:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Incorrect username or password",
            headers={"WWW-Authenticate": "Bearer"},
        )

    access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
    access_token = create_access_token(
        data={"sub": form_data.username, "role": role},
        expires_delta=access_token_expires,
    )

    return {"access_token": access_token, "token_type": "bearer", "role": role}


@router.get("/check")
async def check_auth(user: dict = Depends(get_authenticated_user)):
    return {"role": user.get("role"), "user": user.get("sub")}