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   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
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   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   */
  package org.apache.causeway.testdomain.interact;
  
  import java.util.Arrays;
  import java.util.List;
  import java.util.stream.Collectors;
  
  import jakarta.inject.Inject;
  
  import org.assertj.core.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.springframework.boot.test.context.SpringBootTest;
  import org.springframework.test.context.TestPropertySource;
  
  import org.apache.causeway.applib.annotation.Action;
  import org.apache.causeway.applib.annotation.DomainObject;
  import org.apache.causeway.applib.annotation.Nature;
  import org.apache.causeway.applib.annotation.Optionality;
  import org.apache.causeway.applib.annotation.Property;
  import org.apache.causeway.core.config.presets.CausewayPresets;
  import org.apache.causeway.core.metamodel.facets.all.named.MemberNamedFacet;
  import org.apache.causeway.core.metamodel.spec.feature.MixedIn;
  import org.apache.causeway.core.metamodel.spec.feature.ObjectAction;
  import org.apache.causeway.core.metamodel.specloader.SpecificationLoader;
  import org.apache.causeway.testdomain.conf.Configuration_headless;
  import org.apache.causeway.testdomain.model.interaction.Configuration_usingInteractionDomain;
  import org.apache.causeway.testdomain.util.interaction.InteractionTestAbstract;
  
  import lombok.Data;
  import lombok.RequiredArgsConstructor;
  
  @SpringBootTest(
          classes = {
                  Configuration_headless.class,
                  Configuration_usingInteractionDomain.class,
  
                  WrapperInteractionTest3.Task.class,
                  WrapperInteractionTest3.Task.Succeeded.class,
                  WrapperInteractionTest3.Task.Failed.class,
          }
  )
  @TestPropertySource({
      CausewayPresets.SilenceMetaModel,
      CausewayPresets.SilenceProgrammingModel
  })
  class WrapperInteractionTest3
  extends InteractionTestAbstract {
  
      @Data @DomainObject(nature = Nature.VIEW_MODEL)
      public static class Task {
  
          @RequiredArgsConstructor
          enum Outcome {
              SUPER(true),
              GREAT(true),
              OK(true),
              BAD(false),
              TERRIBLE(false),
              JUST_GIVE_UP(false),;
  
              final boolean representsSuccess;
  
              public static List<Outcome> successes() {
                  return Arrays.stream(Outcome.values()).filter(x -> x.representsSuccess).collect(Collectors.toList());
              }
              public static List<Outcome> failures() {
                  return Arrays.stream(Outcome.values()).filter(x -> ! x.representsSuccess).collect(Collectors.toList());
              }
          }
  
          @Property(optionality = Optionality.OPTIONAL)
          Outcome outcome;
  
          @Action
          public class Succeeded
          extends MixinAbstract {
              public List<Task.Outcome> choices0Act() { return Task.Outcome.successes(); }
          }
  
          @Action
          public class Failed
          extends MixinAbstract {
              public List<Task.Outcome> choices0Act() { return Task.Outcome.failures(); }
          }
  
          // an abstract (inner) mixin class (required public if introspection policy does not process private methods)
          public abstract class MixinAbstract {
              public Task act(final Task.Outcome outcome) {
                  Task.this.outcome = outcome;
                  return Task.this;
              }
          }
      }
  
      @Inject SpecificationLoader specificationLoader;
  
      @Test
      void mixinMemberNamedFacet_whenSharingSameAbstractMixin() {
  
          var mixinSpec1 = specificationLoader.specForType(Task.Succeeded.class).get();
          var mixinSpec2 = specificationLoader.specForType(Task.Failed.class).get();
  
          assertTrue(mixinSpec1.isMixin());
          assertTrue(mixinSpec2.isMixin());
  
          assertTrue(mixinSpec1.mixinFacetElseFail().isMixinFor(Task.class));
          assertTrue(mixinSpec2.mixinFacetElseFail().isMixinFor(Task.class));
  
          var objectSpec = specificationLoader.specForType(Task.class).get();
  
          assertEquals(
                  2L,
                  objectSpec.streamRuntimeActions(MixedIn.INCLUDED)
                  .filter(ObjectAction::isMixedIn)
                  .peek(act->{
                      var memberNamedFacet = act.getFacet(MemberNamedFacet.class);
                      assertNotNull(memberNamedFacet);
                      assertTrue(memberNamedFacet.getSpecialization().isLeft());
                  })
                  .count());
      }
  
      @Test
      void mixinActionValidation() {
  
          final Task task = new Task();
  
          wrapMixin(Task.Succeeded.class, task).act(Task.Outcome.SUPER);
          Assertions.assertThat(task).extracting(Task::getOutcome).isEqualTo(Task.Outcome.SUPER);
  
          wrapMixin(Task.Failed.class, task).act(Task.Outcome.JUST_GIVE_UP);
          Assertions.assertThat(task).extracting(Task::getOutcome).isEqualTo(Task.Outcome.JUST_GIVE_UP);
      }
  
  }
  