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

from app.api.deps import current_user
from app.db.session import get_db
from app.models.entities import Notification, User
from app.services.notifications import mark_read

router = APIRouter()


@router.get("")
def list_notifications(user: User = Depends(current_user), db: Session = Depends(get_db)) -> list[dict]:
    rows = db.scalars(select(Notification).where(Notification.user_id == user.id).order_by(Notification.created_at.desc()).limit(100)).all()
    return [{"id": n.id, "title": n.title, "body": n.body, "kind": n.kind, "read_at": n.read_at, "created_at": n.created_at} for n in rows]


@router.post("/{notification_id}/read")
def read(notification_id: str, user: User = Depends(current_user), db: Session = Depends(get_db)) -> dict:
    notification = db.get(Notification, notification_id)
    if not notification or notification.user_id != user.id:
        raise HTTPException(status_code=404, detail="Notification not found")
    mark_read(db, notification)
    db.commit()
    return {"message": "Notification read"}