# 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_current_user
from ..core.config import (
    ACCESS_TOKEN_EXPIRE_MINUTES,
    ADMIN_HASH,
    ADMIN_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()],
):
    if form_data.username != ADMIN_USER:
        raise HTTPException(
            status_code=status.HTTP_401_UNAUTHORIZED,
            detail="Incorrect username or password",
            headers={"WWW-Authenticate": "Bearer"},
        )

    if not verify_password(form_data.password, ADMIN_HASH):
        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}, expires_delta=access_token_expires
    )

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


@router.get("/check")
async def check_auth(user: str = Depends(get_current_user)):
    return {"is_admin": True, "user": user}