/*
 * Copyright 2022 the original author or authors.
 * <p>
 * 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
 * <p>
 * https://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * 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 org.openrewrite.maven;

import org.junit.jupiter.api.Test;
import org.openrewrite.DocumentExample;
import org.openrewrite.Issue;
import org.openrewrite.maven.tree.MavenResolutionResult;
import org.openrewrite.maven.tree.Scope;
import org.openrewrite.test.RewriteTest;

import static org.assertj.core.api.Assertions.assertThat;
import static org.openrewrite.maven.Assertions.pomXml;

class RemoveDependencyTest implements RewriteTest {

    @DocumentExample
    @Test
    void removeDependency() {
        rewriteRun(
          spec -> spec.recipe(new RemoveDependency("junit", "junit", null)),
          pomXml(
            """
              <project>
                <modelVersion>4.0.0</modelVersion>
                
                <groupId>com.mycompany.app</groupId>
                <artifactId>my-app</artifactId>
                <version>1</version>
                
                <dependencies>
                  <dependency>
                    <groupId>com.google.guava</groupId>
                    <artifactId>guava</artifactId>
                    <version>29.0-jre</version>
                  </dependency>
                  <dependency>
                    <groupId>junit</groupId>
                    <artifactId>junit</artifactId>
                    <version>4.13.1</version>
                    <scope>test</scope>
                  </dependency>
                </dependencies>
              </project>
              """,
            """
              <project>
                <modelVersion>4.0.0</modelVersion>
                
                <groupId>com.mycompany.app</groupId>
                <artifactId>my-app</artifactId>
                <version>1</version>
                
                <dependencies>
                  <dependency>
                    <groupId>com.google.guava</groupId>
                    <artifactId>guava</artifactId>
                    <version>29.0-jre</version>
                  </dependency>
                </dependencies>
              </project>
              """
          )
        );
    }

    @Test
    void noDependencyToRemove() {
        rewriteRun(
          spec -> spec.recipe(new RemoveDependency("junit", "junit", null)),
          pomXml(
            """
              <project>
                <modelVersion>4.0.0</modelVersion>
                
                <groupId>com.mycompany.app</groupId>
                <artifactId>my-app</artifactId>
                <version>1</version>
                
                <dependencies>
                  <dependency>
                    <groupId>com.google.guava</groupId>
                    <artifactId>guava</artifactId>
                    <version>29.0-jre</version>
                  </dependency>
                </dependencies>
              </project>
              """
          )
        );
    }

    @Test
    void shouldRemoveScopedDependency() {
        rewriteRun(
          spec -> spec.recipe(new RemoveDependency("org.junit.jupiter", "junit-jupiter", "compile")),
          pomXml(
            """
              <project>
                  <modelVersion>4.0.0</modelVersion>
                  <groupId>com.mycompany.app</groupId>
                  <artifactId>my-app</artifactId>
                  <version>1</version>
                  <dependencyManagement>
                      <dependencies>
                         <dependency>
                              <groupId>org.junit.jupiter</groupId>
                              <artifactId>junit-jupiter</artifactId>
                              <version>5.7.1</version>
                          </dependency>
                      </dependencies>
                  </dependencyManagement>
                  <dependencies>
                      <dependency>
                          <groupId>org.junit.jupiter</groupId>
                          <artifactId>junit-jupiter</artifactId>
                      </dependency>
                      <dependency>
                          <groupId>org.junit.jupiter</groupId>
                          <artifactId>junit-jupiter</artifactId>
                          <scope>test</scope>
                      </dependency>
                      <dependency>
                          <groupId>org.junit.jupiter</groupId>
                          <artifactId>junit-jupiter-api</artifactId>
                          <version>5.6.3</version>
                          <scope>test</scope>
                      </dependency>
                  </dependencies>
              </project>
              """,
            """
              <project>
                  <modelVersion>4.0.0</modelVersion>
                  <groupId>com.mycompany.app</groupId>
                  <artifactId>my-app</artifactId>
                  <version>1</version>
                  <dependencyManagement>
                      <dependencies>
                         <dependency>
                              <groupId>org.junit.jupiter</groupId>
                              <artifactId>junit-jupiter</artifactId>
                              <version>5.7.1</version>
                          </dependency>
                      </dependencies>
                  </dependencyManagement>
                  <dependencies>
                      <dependency>
                          <groupId>org.junit.jupiter</groupId>
                          <artifactId>junit-jupiter</artifactId>
                          <scope>test</scope>
                      </dependency>
                      <dependency>
                          <groupId>org.junit.jupiter</groupId>
                          <artifactId>junit-jupiter-api</artifactId>
                          <version>5.6.3</version>
                          <scope>test</scope>
                      </dependency>
                  </dependencies>
              </project>
              """
          )
        );
    }

    @Issue("https://github.com/openrewrite/rewrite/issues/422")
    @Test
    void removeDependencyByEffectiveScope() {
        rewriteRun(
          spec -> spec.recipe(new RemoveDependency("junit", "junit", "runtime")),
          pomXml(
            """
              <project>
                <modelVersion>4.0.0</modelVersion>
                
                <groupId>com.mycompany.app</groupId>
                <artifactId>my-app</artifactId>
                <version>1</version>
                
                <dependencies>
                  <dependency>
                    <groupId>com.google.guava</groupId>
                    <artifactId>guava</artifactId>
                    <version>29.0-jre</version>
                  </dependency>
                  <dependency>
                    <groupId>junit</groupId>
                    <artifactId>junit</artifactId>
                    <version>4.13.1</version>
                  </dependency>
                </dependencies>
              </project>
              """,
            """
              <project>
                <modelVersion>4.0.0</modelVersion>
                
                <groupId>com.mycompany.app</groupId>
                <artifactId>my-app</artifactId>
                <version>1</version>
                
                <dependencies>
                  <dependency>
                    <groupId>com.google.guava</groupId>
                    <artifactId>guava</artifactId>
                    <version>29.0-jre</version>
                  </dependency>
                </dependencies>
              </project>
              """
          )
        );
    }

    @Test
    void updateModelWhenAllDependenciesRemoved() {
        rewriteRun(
          spec -> spec.recipe(new RemoveDependency("com.google.guava", "guava", null)),
          pomXml(
            """
                  <project>
                     <modelVersion>4.0.0</modelVersion>
                     <groupId>foo</groupId>
                     <artifactId>bar</artifactId>
                     <version>0.0.1-SNAPSHOT</version>
                     <dependencies>
                         <dependency>
                             <groupId>com.google.guava</groupId>
                             <artifactId>guava</artifactId>
                             <version>29.0-jre</version>
                             <type>pom</type>
                         </dependency>
                     </dependencies>
                 </project>
              """,
            """
                  <project>
                     <modelVersion>4.0.0</modelVersion>
                     <groupId>foo</groupId>
                     <artifactId>bar</artifactId>
                     <version>0.0.1-SNAPSHOT</version>
                 </project>
              """,
            spec -> spec.afterRecipe(doc -> {
                MavenResolutionResult mavenModel = doc.getMarkers().findFirst(MavenResolutionResult.class)
                  .orElseThrow(() -> new IllegalStateException("The maven must should exist on the document."));
                assertThat(mavenModel.getDependencies().get(Scope.Compile)).isEmpty();
            })
          )
        );
    }
}
