/*
 * Copyright 2017 The Bazel Authors. All rights reserved.
 *
 * Licensed 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "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 com.google.idea.blaze.java.run.producers;

import static com.google.common.truth.Truth.assertThat;

import com.google.idea.blaze.base.command.BlazeCommandName;
import com.google.idea.blaze.base.command.BlazeFlags;
import com.google.idea.blaze.base.ideinfo.TargetIdeInfo;
import com.google.idea.blaze.base.ideinfo.TargetMapBuilder;
import com.google.idea.blaze.base.model.MockBlazeProjectDataBuilder;
import com.google.idea.blaze.base.model.MockBlazeProjectDataManager;
import com.google.idea.blaze.base.model.primitives.Label;
import com.google.idea.blaze.base.model.primitives.TargetExpression;
import com.google.idea.blaze.base.model.primitives.WorkspacePath;
import com.google.idea.blaze.base.run.BlazeCommandRunConfiguration;
import com.google.idea.blaze.base.run.producer.BlazeRunConfigurationProducerTestCase;
import com.google.idea.blaze.base.run.state.BlazeCommandRunConfigurationCommonState;
import com.google.idea.blaze.base.sync.data.BlazeProjectDataManager;
import com.intellij.execution.actions.ConfigurationContext;
import com.intellij.execution.actions.ConfigurationFromContext;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiClassOwner;
import com.intellij.psi.PsiFile;
import java.util.ArrayList;
import java.util.List;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Integration tests for {@link BlazeJavaTestClassConfigurationProducer}. */
@RunWith(JUnit4.class)
public class BlazeJavaTestClassConfigurationProducerTest
    extends BlazeRunConfigurationProducerTestCase {

  @Test
  public void testProducedFromPsiFile() {
    PsiFile javaFile =
        createAndIndexFile(
            new WorkspacePath("java/com/google/test/TestClass.java"),
            "package com.google.test;",
            "@org.junit.runner.RunWith(org.junit.runners.JUnit4.class)",
            "public class TestClass {",
            "  @org.junit.Test",
            "  public void testMethod1() {}",
            "  @org.junit.Test",
            "  public void testMethod2() {}",
            "}");

    MockBlazeProjectDataBuilder builder = MockBlazeProjectDataBuilder.builder(workspaceRoot);
    builder.setTargetMap(
        TargetMapBuilder.builder()
            .addTarget(
                TargetIdeInfo.builder()
                    .setKind("java_test")
                    .setLabel("//java/com/google/test:TestClass")
                    .addSource(sourceRoot("java/com/google/test/TestClass.java"))
                    .build())
            .build());
    registerProjectService(
        BlazeProjectDataManager.class, new MockBlazeProjectDataManager(builder.build()));

    ConfigurationContext context = createContextFromPsi(javaFile);
    List<ConfigurationFromContext> configurations = context.getConfigurationsFromContext();
    assertThat(configurations).hasSize(1);

    ConfigurationFromContext fromContext = configurations.get(0);
    assertThat(fromContext.isProducedBy(BlazeJavaTestClassConfigurationProducer.class)).isTrue();
    assertThat(fromContext.getConfiguration()).isInstanceOf(BlazeCommandRunConfiguration.class);

    BlazeCommandRunConfiguration config =
        (BlazeCommandRunConfiguration) fromContext.getConfiguration();
    assertThat(config.getTarget())
        .isEqualTo(TargetExpression.fromString("//java/com/google/test:TestClass"));
    assertThat(getTestFilterContents(config)).isEqualTo("--test_filter=com.google.test.TestClass#");
    assertThat(config.getName()).isEqualTo("Blaze test TestClass");
    assertThat(getCommandType(config)).isEqualTo(BlazeCommandName.TEST);
  }

  @Test
  public void testProducedFromPsiClass() {
    PsiFile javaFile =
        createAndIndexFile(
            new WorkspacePath("java/com/google/test/TestClass.java"),
            "package com.google.test;",
            "@org.junit.runner.RunWith(org.junit.runners.JUnit4.class)",
            "public class TestClass {",
            "  @org.junit.Test",
            "  public void testMethod1() {}",
            "  @org.junit.Test",
            "  public void testMethod2() {}",
            "}");

    MockBlazeProjectDataBuilder builder = MockBlazeProjectDataBuilder.builder(workspaceRoot);
    builder.setTargetMap(
        TargetMapBuilder.builder()
            .addTarget(
                TargetIdeInfo.builder()
                    .setKind("java_test")
                    .setLabel("//java/com/google/test:TestClass")
                    .addSource(sourceRoot("java/com/google/test/TestClass.java"))
                    .build())
            .build());
    registerProjectService(
        BlazeProjectDataManager.class, new MockBlazeProjectDataManager(builder.build()));

    PsiClass javaClass = ((PsiClassOwner) javaFile).getClasses()[0];
    assertThat(javaClass).isNotNull();

    ConfigurationContext context = createContextFromPsi(javaClass);
    List<ConfigurationFromContext> configurations = context.getConfigurationsFromContext();
    assertThat(configurations).hasSize(1);

    ConfigurationFromContext fromContext = configurations.get(0);
    assertThat(fromContext.isProducedBy(BlazeJavaTestClassConfigurationProducer.class)).isTrue();
    assertThat(fromContext.getConfiguration()).isInstanceOf(BlazeCommandRunConfiguration.class);

    BlazeCommandRunConfiguration config =
        (BlazeCommandRunConfiguration) fromContext.getConfiguration();
    assertThat(config.getTarget())
        .isEqualTo(TargetExpression.fromString("//java/com/google/test:TestClass"));
    assertThat(getTestFilterContents(config)).isEqualTo("--test_filter=com.google.test.TestClass#");
    assertThat(config.getName()).isEqualTo("Blaze test TestClass");
    assertThat(getCommandType(config)).isEqualTo(BlazeCommandName.TEST);
  }

  @Test
  public void testProducedFromPsiClassWithInnerTestClass() {
    PsiFile javaFile =
        createAndIndexFile(
            new WorkspacePath("java/com/google/test/OuterClass.java"),
            "package com.google.test;",
            "@org.junit.runner.RunWith(org.junit.runners.Suite.class)",
            "@org.junit.runners.Suite.SuiteClasses({OuterClass.InnerClass.class})",
            "public class OuterClass {",
            "  @org.junit.runner.RunWith(org.junit.runners.JUnit4.class)",
            "  public static class InnerClass {",
            "    @org.junit.Test",
            "    public void testMethod1() {}",
            "    @org.junit.Test",
            "    public void testMethod2() {}",
            "  }",
            "}");

    MockBlazeProjectDataBuilder builder = MockBlazeProjectDataBuilder.builder(workspaceRoot);
    builder.setTargetMap(
        TargetMapBuilder.builder()
            .addTarget(
                TargetIdeInfo.builder()
                    .setKind("java_test")
                    .setLabel("//java/com/google/test:OuterClass")
                    .addSource(sourceRoot("java/com/google/test/OuterClass.java"))
                    .build())
            .build());
    registerProjectService(
        BlazeProjectDataManager.class, new MockBlazeProjectDataManager(builder.build()));

    PsiClass javaClass = ((PsiClassOwner) javaFile).getClasses()[0];
    assertThat(javaClass).isNotNull();

    ConfigurationContext context = createContextFromPsi(javaClass);
    List<ConfigurationFromContext> configurations = context.getConfigurationsFromContext();
    assertThat(configurations).hasSize(1);

    ConfigurationFromContext fromContext = configurations.get(0);
    assertThat(fromContext.isProducedBy(BlazeJavaTestClassConfigurationProducer.class)).isTrue();
    assertThat(fromContext.getConfiguration()).isInstanceOf(BlazeCommandRunConfiguration.class);

    BlazeCommandRunConfiguration config =
        (BlazeCommandRunConfiguration) fromContext.getConfiguration();
    assertThat(config.getTarget())
        .isEqualTo(TargetExpression.fromString("//java/com/google/test:OuterClass"));
    assertThat(getTestFilterContents(config))
        .isEqualTo(
            "--test_filter=com.google.test.OuterClass#|com.google.test.OuterClass.InnerClass#");
    assertThat(config.getName()).isEqualTo("Blaze test OuterClass");
    assertThat(getCommandType(config)).isEqualTo(BlazeCommandName.TEST);
  }

  @Test
  public void testConfigFromContextRecognizesItsOwnConfig() {
    PsiFile javaFile =
        createAndIndexFile(
            new WorkspacePath("java/com/google/test/TestClass.java"),
            "package com.google.test;",
            "@org.junit.runner.RunWith(org.junit.runners.JUnit4.class)",
            "public class TestClass {",
            "  @org.junit.Test",
            "  public void testMethod() {}",
            "}");

    MockBlazeProjectDataBuilder builder = MockBlazeProjectDataBuilder.builder(workspaceRoot);
    builder.setTargetMap(
        TargetMapBuilder.builder()
            .addTarget(
                TargetIdeInfo.builder()
                    .setKind("java_test")
                    .setLabel("//java/com/google/test:TestClass")
                    .addSource(sourceRoot("java/com/google/test/TestClass.java"))
                    .build())
            .build());
    registerProjectService(
        BlazeProjectDataManager.class, new MockBlazeProjectDataManager(builder.build()));

    ConfigurationContext context = createContextFromPsi(javaFile);
    BlazeCommandRunConfiguration config =
        (BlazeCommandRunConfiguration) context.getConfiguration().getConfiguration();
    assertThat(config).isNotNull();

    assertThat(new BlazeJavaTestClassConfigurationProducer().doIsConfigFromContext(config, context))
        .isTrue();
  }

  @Test
  public void testConfigWithDifferentLabelIgnored() {
    PsiFile javaFile =
        createAndIndexFile(
            new WorkspacePath("java/com/google/test/TestClass.java"),
            "package com.google.test;",
            "@org.junit.runner.RunWith(org.junit.runners.JUnit4.class)",
            "public class TestClass {",
            "  @org.junit.Test",
            "  public void testMethod() {}",
            "}");

    MockBlazeProjectDataBuilder builder = MockBlazeProjectDataBuilder.builder(workspaceRoot);
    builder.setTargetMap(
        TargetMapBuilder.builder()
            .addTarget(
                TargetIdeInfo.builder()
                    .setKind("java_test")
                    .setLabel("//java/com/google/test:TestClass")
                    .addSource(sourceRoot("java/com/google/test/TestClass.java"))
                    .build())
            .build());
    registerProjectService(
        BlazeProjectDataManager.class, new MockBlazeProjectDataManager(builder.build()));

    ConfigurationContext context = createContextFromPsi(javaFile);
    BlazeCommandRunConfiguration config =
        (BlazeCommandRunConfiguration) context.getConfiguration().getConfiguration();
    assertThat(config).isNotNull();

    // modify the label, and check that is enough for the producer to class it as different.
    config.setTarget(Label.create("//java/com/google/test:TestClass2"));

    assertThat(new BlazeJavaTestClassConfigurationProducer().doIsConfigFromContext(config, context))
        .isFalse();
  }

  @Test
  public void testConfigWithDifferentFilterIgnored() {
    PsiFile javaFile =
        createAndIndexFile(
            new WorkspacePath("java/com/google/test/TestClass.java"),
            "package com.google.test;",
            "@org.junit.runner.RunWith(org.junit.runners.JUnit4.class)",
            "public class TestClass {",
            "  @org.junit.Test",
            "  public void testMethod() {}",
            "}");

    MockBlazeProjectDataBuilder builder = MockBlazeProjectDataBuilder.builder(workspaceRoot);
    builder.setTargetMap(
        TargetMapBuilder.builder()
            .addTarget(
                TargetIdeInfo.builder()
                    .setKind("java_test")
                    .setLabel("//java/com/google/test:TestClass")
                    .addSource(sourceRoot("java/com/google/test/TestClass.java"))
                    .build())
            .build());
    registerProjectService(
        BlazeProjectDataManager.class, new MockBlazeProjectDataManager(builder.build()));

    ConfigurationContext context = createContextFromPsi(javaFile);
    BlazeCommandRunConfiguration config =
        (BlazeCommandRunConfiguration) context.getConfiguration().getConfiguration();
    BlazeCommandRunConfigurationCommonState handlerState =
        config.getHandlerStateIfType(BlazeCommandRunConfigurationCommonState.class);

    // modify the test filter, and check that is enough for the producer to class it as different.
    List<String> flags = new ArrayList<>(handlerState.getBlazeFlagsState().getRawFlags());
    flags.removeIf((flag) -> flag.startsWith(BlazeFlags.TEST_FILTER));
    flags.add(BlazeFlags.TEST_FILTER + "=com.google.test.OtherTestClass#");
    handlerState.getBlazeFlagsState().setRawFlags(flags);

    assertThat(new BlazeJavaTestClassConfigurationProducer().doIsConfigFromContext(config, context))
        .isFalse();
  }
}