// 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.kotlin;

import static com.android.tools.r8.KotlinCompilerTool.KotlinCompilerVersion.KOTLINC_1_4_20;

import com.android.tools.r8.KotlinTestBase;
import com.android.tools.r8.KotlinTestParameters;
import com.android.tools.r8.R8FullTestBuilder;
import com.android.tools.r8.TestParameters;
import com.android.tools.r8.TestShrinkerBuilder;
import com.android.tools.r8.ThrowableConsumer;
import com.android.tools.r8.ToolHelper;
import com.android.tools.r8.shaking.ProguardKeepAttributes;
import java.util.Collection;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

@RunWith(Parameterized.class)
public class ProcessKotlinReflectionLibTest extends KotlinTestBase {

  private final TestParameters parameters;

  @Parameterized.Parameters(name = "{0}, target: {1}")
  public static Collection<Object[]> data() {
    return buildParameters(
        getTestParameters().withAllRuntimes().build(),
        getKotlinTestParameters().withAllCompilersAndTargetVersions().build());
  }

  public ProcessKotlinReflectionLibTest(
      TestParameters parameters, KotlinTestParameters kotlinParameters) {
    super(kotlinParameters);
    this.parameters = parameters;
  }

  private void test(ThrowableConsumer<R8FullTestBuilder> consumer) throws Exception {
    testForR8(parameters.getBackend())
        .addLibraryFiles(
            ToolHelper.getMostRecentAndroidJar(),
            ToolHelper.getKotlinStdlibJar(kotlinc),
            ToolHelper.getKotlinAnnotationJar(kotlinc))
        .addProgramFiles(ToolHelper.getKotlinReflectJar(kotlinc))
        .addKeepAttributes(ProguardKeepAttributes.SIGNATURE)
        .addKeepAttributes(ProguardKeepAttributes.INNER_CLASSES)
        .addKeepAttributes(ProguardKeepAttributes.ENCLOSING_METHOD)
        .allowUnusedDontWarnKotlinReflectJvmInternal(kotlinc.is(KOTLINC_1_4_20))
        .allowUnusedProguardConfigurationRules(kotlinc.is(KOTLINC_1_4_20))
        .apply(consumer)
        .compile()
        .apply(assertUnusedKeepRuleForKotlinMetadata(kotlinc.is(KOTLINC_1_4_20)));
  }

  @Test
  public void testAsIs() throws Exception {
    test(builder -> builder.noMinification().noOptimization().noTreeShaking());
  }

  @Test
  public void testDontShrinkAndDontOptimize() throws Exception {
    test(builder -> builder.noOptimization().noTreeShaking());
  }

  @Test
  public void testDontShrinkAndDontOptimizeDifferently() throws Exception {
    test(
        builder ->
            builder
                .addKeepRules("-keep,allowobfuscation class **.*KClasses*")
                .noTreeShaking()
                .addOptionsModification(
                    o -> {
                      // Randomly choose a couple of optimizations.
                      o.enableVerticalClassMerging = false;
                      o.enableClassStaticizer = false;
                      o.outline.enabled = false;
                    }));
  }

  @Test
  public void testDontShrinkAndDontObfuscate() throws Exception {
    test(builder -> builder.noMinification().noTreeShaking());
  }

  @Test
  public void testDontShrink() throws Exception {
    test(TestShrinkerBuilder::noTreeShaking);
  }

  @Test
  public void testDontShrinkDifferently() throws Exception {
    test(
        builder ->
            builder
                .addKeepRules("-keep,allowobfuscation class **.*KClasses*")
                .noTreeShaking());
  }

  @Test
  public void testDontOptimize() throws Exception {
    test(TestShrinkerBuilder::noOptimization);
  }

  @Test
  public void testDontObfuscate() throws Exception {
    test(TestShrinkerBuilder::noMinification);
  }

}