"""
api/push.py -- Web Push (VAPID) subscribe/unsubscribe for the signed-in user's own device.

Mirrors api/notifications.py's "scoped to the caller" posture: no login, no subscription (nothing to
 scope it to).
"""

from __future__ import annotations

from fastapi import APIRouter, Depends, HTTPException, status
from sqlalchemy.orm import Session

from app.api.deps import get_current_user, get_db
from app.config import settings
from app.crud import push as crud
from app.models import User
from app.schemas.push import PushSubscribeInput, PushUnsubscribeInput, VapidPublicKeyOut

router = APIRouter(tags=["push"])


@router.get("/push/vapid-public-key", response_model=VapidPublicKeyOut)
def vapid_public_key():
    return VapidPublicKeyOut(key=settings.vapid_public_key)


@router.post("/push/subscribe")
def subscribe(
    body: PushSubscribeInput,
    db: Session = Depends(get_db),
    user: User | None = Depends(get_current_user),
):
    if user is None:
        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Please sign in.")
    crud.save_subscription(db, user_id=user.id, endpoint=body.endpoint, p256dh=body.p256dh, auth=body.auth)
    return {"ok": True}


@router.post("/push/unsubscribe")
def unsubscribe(
    body: PushUnsubscribeInput,
    db: Session = Depends(get_db),
    user: User | None = Depends(get_current_user),
):
    if user is None:
        raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Please sign in.")
    crud.remove_subscription(db, user_id=user.id, endpoint=body.endpoint)
    return {"ok": True}