reject duplicate _ bulkified code

trigger RejectDuplicateFavorite on Favorite__c (before insert) {

    // NOTE: this trigger needs to be bulkified

    Favorite__c favorite = Trigger.New[0];
    List<Favorite__c> dupes = [Select Id FROM Favorite__C WHERE Property__c = :favorite.Property__c AND User__c = :favorite.User__c];
    if (!dupes.isEmpty()) {
        favorite.addError('duplicate');
    }

}
========


Trigger RejectDuplicateFavorite on Favorite__c (before insert) {
 switch on Trigger.operationType {
 when BEFORE_INSERT {
   RejectDuplicateFavorite.favDuplicateCheck(Trigger.new);
 }
 }
 }

  Public with sharing RejectDuplicateFavorite{
    public static void favDuplicateCheck(List<Favorite__C> FavLst){
    if(FavLst != null){
    for( Favorite__C : fav : FavLst){
    List<Favorite__C> facQ = [SELECT id, from Favorite__C  where Property__c = :fav.Property__c and User__c =: fac.User__c ];
    if(favQ.size()> 0){
    favorite.addError('Favorite is already been created');
    }
    }
    }
    }
  }