// Copyright (c) 2019, the R8 project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

package com.android.tools.r8.desugar.desugaredlibrary;

import static com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification.DEFAULT_SPECIFICATIONS;
import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.getJdk8Jdk11;

import com.android.tools.r8.TestParameters;
import com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification;
import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification;
import com.android.tools.r8.utils.StringUtils;
import java.util.AbstractCollection;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.function.Predicate;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

@SuppressWarnings("ALL")
@RunWith(Parameterized.class)
public class MinimalInterfaceSuperTest extends DesugaredLibraryTestBase {

  private static final String EXPECTED_OUTPUT = StringUtils.lines("removeIf from Col1Itf");

  private final TestParameters parameters;
  private final LibraryDesugaringSpecification libraryDesugaringSpecification;
  private final CompilationSpecification compilationSpecification;

  @Parameters(name = "{0}, spec: {1}, {2}")
  public static List<Object[]> data() {
    return buildParameters(
        getTestParameters().withAllRuntimes().withAllApiLevels().build(),
        getJdk8Jdk11(),
        DEFAULT_SPECIFICATIONS);
  }

  public MinimalInterfaceSuperTest(
      TestParameters parameters,
      LibraryDesugaringSpecification libraryDesugaringSpecification,
      CompilationSpecification compilationSpecification) {
    this.parameters = parameters;
    this.libraryDesugaringSpecification = libraryDesugaringSpecification;
    this.compilationSpecification = compilationSpecification;
  }

  @Test
  public void testMinimalInterfaceSuper() throws Exception {
    if (parameters.isCfRuntime()) {
      testForJvm()
          .addInnerClasses(MinimalInterfaceSuperTest.class)
          .run(parameters.getRuntime(), Main.class)
          .assertSuccessWithOutput(EXPECTED_OUTPUT);
      return;
    }
    testForDesugaredLibrary(parameters, libraryDesugaringSpecification, compilationSpecification)
        .addInnerClasses(getClass())
        .addKeepMainRule(Main.class)
        .run(parameters.getRuntime(), Main.class)
        .assertSuccessWithOutput(EXPECTED_OUTPUT);
  }

  static class Main {
    public static void main(String[] args) {
      Col1<Integer> ints1 = new Col1<>();
      ints1.removeIf(x -> x == 3);
    }
  }

  interface Col1Itf<E> extends Collection<E> {
    @Override
    default boolean removeIf(Predicate<? super E> filter) {
      System.out.println("removeIf from Col1Itf");
      return Collection.super.removeIf(filter);
    }
  }

  static class Col1<E> extends AbstractCollection<E> implements Col1Itf<E> {
    @Override
    public Iterator<E> iterator() {
      return Collections.emptyIterator();
    }

    @Override
    public int size() {
      return 0;
    }
  }
}