package fr.tiogars.inception.common.services;
   
   import java.util.ArrayList;
   import java.util.LinkedHashSet;
   import java.util.List;
   import java.util.function.Predicate;
   
   import fr.tiogars.inception.common.models.DeleteSelectedResponse;
   
  /**
   * Applies a single-record deletion to each selected identifier.
   *
   * @since 0.1.0
   */
  public final class DeleteSelectedSupport {
  
      private DeleteSelectedSupport() {
      }
  
      /**
       * Deletes each distinct identifier, preserving the input order.
       *
       * @param ids    selected identifiers
       * @param delete deletion returning {@code true} when the record was deleted
       * @return deleted and skipped identifiers
       */
      public static DeleteSelectedResponse deleteEach(List<Long> ids, Predicate<Long> delete) {
          List<Long> deleted = new ArrayList<>();
          List<Long> skipped = new ArrayList<>();
          for (Long id : new LinkedHashSet<>(ids)) {
              if (delete.test(id)) {
                  deleted.add(id);
              } else {
                  skipped.add(id);
              }
          }
          return new DeleteSelectedResponse(List.copyOf(deleted), List.copyOf(skipped));
      }
  }