/*
    * Copyright (c) 2006 JMockit developers
    * This file is subject to the terms of the MIT license (see LICENSE.txt).
    */
   package mockit.internal.injection;
   
   import edu.umd.cs.findbugs.annotations.NonNull;
   import edu.umd.cs.findbugs.annotations.Nullable;
   
  import java.lang.annotation.Annotation;
  import java.util.List;
  
  import mockit.Tested;
  import mockit.internal.state.TestRun;
  import mockit.internal.util.TestMethod;
  
  import org.checkerframework.checker.index.qual.NonNegative;
  
  public final class TestedParameters {
      @NonNull
      private final TestMethod testMethod;
      @NonNull
      private final InjectionState injectionState;
  
      public TestedParameters(@NonNull TestMethod testMethod) {
          this.testMethod = testMethod;
  
          TestedClassInstantiations testedClasses = TestRun.getTestedClassInstantiations();
          injectionState = testedClasses == null ? new InjectionState() : testedClasses.injectionState;
      }
  
      public void createTestedParameters(@NonNull Object testClassInstance,
              @NonNull List<? extends InjectionProvider> injectables) {
          injectionState.addInjectables(testClassInstance, injectables);
  
          for (int n = testMethod.getParameterCount(), i = 0; i < n; i++) {
              TestedParameter testedParameter = createTestedParameterIfApplicable(i);
  
              if (testedParameter != null) {
                  instantiateTestedObject(testClassInstance, testedParameter);
              }
          }
      }
  
      @Nullable
      private TestedParameter createTestedParameterIfApplicable(@NonNegative int parameterIndex) {
          Annotation[] parameterAnnotations = testMethod.getParameterAnnotations(parameterIndex);
  
          for (Annotation parameterAnnotation : parameterAnnotations) {
              Tested testedMetadata = TestedObject.getTestedAnnotationIfPresent(parameterAnnotation);
  
              if (testedMetadata != null) {
                  return new TestedParameter(injectionState, testMethod, parameterIndex, testedMetadata);
              }
          }
  
          return null;
      }
  
      private void instantiateTestedObject(@NonNull Object testClassInstance, @NonNull TestedParameter testedObject) {
          try {
              testedObject.instantiateWithInjectableValues(testClassInstance);
          } finally {
              injectionState.injectionProviders.resetConsumedInjectionProviders();
          }
      }
  }