/*
    * Copyright (c) 2006 JMockit developers
    * This file is subject to the terms of the MIT license (see LICENSE.txt).
    */
   package mockit.internal.expectations.argumentMatching;
   
   import edu.umd.cs.findbugs.annotations.NonNull;
   import edu.umd.cs.findbugs.annotations.Nullable;
   
  import java.lang.reflect.Method;
  
  import mockit.Delegate;
  import mockit.internal.reflection.MethodReflection;
  
  public final class ReflectiveMatcher implements ArgumentMatcher<ReflectiveMatcher> {
      @NonNull
      private final Delegate<?> delegate;
      @Nullable
      private Method handlerMethod;
      @Nullable
      private Object matchedValue;
  
      public ReflectiveMatcher(@NonNull Delegate<?> delegate) {
          this.delegate = delegate;
      }
  
      @Override
      public boolean same(@NonNull ReflectiveMatcher other) {
          return delegate == other.delegate;
      }
  
      @Override
      public boolean matches(@Nullable Object argValue) {
          if (handlerMethod == null) {
              handlerMethod = MethodReflection.findNonPrivateHandlerMethod(delegate);
          }
  
          matchedValue = argValue;
          Boolean result = MethodReflection.invoke(delegate, handlerMethod, argValue);
  
          return result == null || result;
      }
  
      @Override
      public void writeMismatchPhrase(@NonNull ArgumentMismatch argumentMismatch) {
          if (handlerMethod != null) {
              argumentMismatch.append(handlerMethod.getName()).append('(');
              argumentMismatch.appendFormatted(matchedValue);
              argumentMismatch.append(") (should return true, was false)");
          } else {
              argumentMismatch.append('?');
          }
      }
  }