if($request->id_client == null) {
            $client = Client::where('id_utilisateur', '=', Auth::user()->id)->first();

            $abonnement = Abonnement::where('id_client', '=', $client->id)->first();

            $reservation = Reservation::where('id_seance', '=', $id)->where('id_client', '=', Auth::user()->id)->first();


            if ($reservation == null) {

                if ($abonnement->type == 'carte 10' && $abonnement->nb_reservation_dispo > 0) {
                    $abonnement->nb_reservation_dispo = $abonnement->nb_reservation_dispo - 1;
                    $abonnement->save();
                    $reservation = new Reservation();
                    $reservation->date_reservation = date("Y-m-d H:i:s");;
                    $reservation->id_client = Auth::user()->id;
                    $reservation->id_seance = $id;
                    $reservation->save();
                    return redirect()->back()->with('message', 'Réservation réussie');
                }

                if ($abonnement->type == 'mensuel' && date('Y-m-d H:i:s', strtotime('+1 month', strtotime($abonnement->date_souscription))) >= date("Y-m-d H:i:s")) {
                    $reservation = new Reservation();
                    $reservation->date_reservation = date("Y-m-d H:i:s");;
                    $reservation->id_client = Auth::user()->id;
                    $reservation->id_seance = $id;
                    $reservation->save();
                    return redirect()->back()->with('message', 'Réservation réussie');
                }

                if ($abonnement->type == 'annuel' && date('Y-m-d H:i:s', strtotime('+1 year', strtotime($abonnement->date_souscription))) >= date("Y-m-d H:i:s")) {
                    $reservation = new Reservation();
                    $reservation->date_reservation = date("Y-m-d H:i:s");;
                    $reservation->id_client = Auth::user()->id;
                    $reservation->id_seance = $id;
                    $reservation->save();
                    return redirect()->back()->with('message', 'Réservation réussie');
                }

                return redirect()->back()->withErrors('Votre abonnement ne permet pas de faire une réservation pour cette séance.');
            } else {
                return redirect()->back()->withErrors('Vous avez déjà réserver pour cette séance');
            }
        }else{
            $client = Client::find($request->id_client);
            if($client == null){
                return redirect()->withErrors("Ce client n'existe pas");
            }else{
                $reservation = new Reservation();
                $reservation->date_reservation = date("Y-m-d H:i:s");
                $reservation->id_client = $client->id;
                $reservation->id_seance = $id;
                $reservation->save();
                return redirect()->back()->with('message', 'Réservation effectué pour ' . $client->nom . ' ' . $client->prenome);
            }
        }