/*
 * Copyright 2012-2020 the original author or authors.
 *
 * 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
 *
 *      https://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 io.spring.initializr.generator.spring.code;

import io.spring.initializr.generator.language.CompilationUnit;
import io.spring.initializr.generator.language.SourceCode;
import io.spring.initializr.generator.language.TypeDeclaration;
import io.spring.initializr.generator.packaging.Packaging;
import io.spring.initializr.generator.project.MutableProjectDescription;
import io.spring.initializr.generator.test.project.ProjectAssetTester;
import io.spring.initializr.generator.version.Version;
import org.junit.jupiter.api.Test;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.BDDMockito.given;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

/**
 * Tests for {@link SourceCodeProjectGenerationConfiguration}.
 *
 * @author Madhura Bhave
 */
class SourceCodeProjectGenerationConfigurationTests {

	private final ProjectAssetTester projectTester = new ProjectAssetTester()
			.withConfiguration(SourceCodeProjectGenerationConfiguration.class);

	@Test
	@SuppressWarnings("unchecked")
	void addsACustomizerThatAppliesSpringBootApplicationAnnotationOnMainClass() {
		TypeDeclaration declaration = this.projectTester.generate(new MutableProjectDescription(), (context) -> {
			TypeDeclaration type = new TypeDeclaration("Test");
			MainApplicationTypeCustomizer<TypeDeclaration> bean = context.getBean(MainApplicationTypeCustomizer.class);
			bean.customize(type);
			return type;
		});
		assertThat(declaration.getAnnotations()).hasSize(1);
		assertThat(declaration.getAnnotations()).singleElement()
				.satisfies((annotation) -> assertThat(annotation.getName())
						.isEqualTo("org.springframework.boot.autoconfigure.SpringBootApplication"));
	}

	@Test
	void addsACustomizerThatAppliesTestAnnotationsOnTestClassWithJunit4() {
		TypeDeclaration declaration = generateTestTypeDeclaration("2.1.0.RELEASE");
		assertThat(declaration.getAnnotations()).hasSize(2);
		assertThat(declaration.getAnnotations().get(0).getName()).isEqualTo("org.junit.runner.RunWith");
		assertThat(declaration.getAnnotations().get(0).getAttributes().get(0).getValues())
				.containsOnly("org.springframework.test.context.junit4.SpringRunner");
		assertThat(declaration.getAnnotations().get(1).getName())
				.isEqualTo("org.springframework.boot.test.context.SpringBootTest");
	}

	@Test
	void addsACustomizerThatAppliesTestAnnotationsOnTestClassWithJunit5() {
		TypeDeclaration declaration = generateTestTypeDeclaration("2.2.0.RELEASE");
		assertThat(declaration.getAnnotations()).hasSize(1);
		assertThat(declaration.getAnnotations().get(0).getName())
				.isEqualTo("org.springframework.boot.test.context.SpringBootTest");
	}

	@SuppressWarnings("unchecked")
	private TypeDeclaration generateTestTypeDeclaration(String version) {
		MutableProjectDescription description = new MutableProjectDescription();
		description.setPlatformVersion(Version.parse(version));
		return this.projectTester.generate(description, (context) -> {
			TypeDeclaration type = new TypeDeclaration("Test");
			TestApplicationTypeCustomizer<TypeDeclaration> bean = context.getBean(TestApplicationTypeCustomizer.class);
			bean.customize(type);
			return type;
		});
	}

	@Test
	void springBoot20WarServletInitializerContributor() {
		runWarTest("2.1.0", "org.springframework.boot.web.servlet.support.SpringBootServletInitializer");
	}

	@SuppressWarnings("unchecked")
	private void runWarTest(String version, String className) {
		MutableProjectDescription description = new MutableProjectDescription();
		description.setPackaging(Packaging.forId("war"));
		description.setPackageName("com.foo");
		description.setPlatformVersion(Version.parse(version));
		this.projectTester.configure(description, (context) -> {
			ServletInitializerContributor bean = context.getBean(ServletInitializerContributor.class);
			SourceCode<TypeDeclaration, CompilationUnit<TypeDeclaration>> sourceCode = mock(SourceCode.class);
			CompilationUnit<TypeDeclaration> compilationUnit = mock(CompilationUnit.class);
			given(sourceCode.createCompilationUnit(any(), any())).willReturn(compilationUnit);
			TypeDeclaration typeDeclaration = mock(TypeDeclaration.class);
			given(compilationUnit.createTypeDeclaration(any())).willReturn(typeDeclaration);
			bean.customize(sourceCode);
			verify(sourceCode).createCompilationUnit("com.foo", "ServletInitializer");
			verify(typeDeclaration).extend(className);
		});
	}

}
