/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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 org.apache.maven.plugin.failsafe;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.Collection;
  
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.plugin.AbstractMojo;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.apache.maven.plugin.failsafe.util.FailsafeSummaryXmlUtils;
  import org.apache.maven.plugin.surefire.SurefireHelper;
  import org.apache.maven.plugin.surefire.SurefireReportParameters;
  import org.apache.maven.plugin.surefire.log.PluginConsoleLogger;
  import org.apache.maven.plugins.annotations.LifecyclePhase;
  import org.apache.maven.plugins.annotations.Mojo;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.surefire.api.cli.CommandLineOption;
  import org.apache.maven.surefire.api.suite.RunResult;
  import org.apache.maven.surefire.booter.SurefireBooterForkException;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import static org.apache.maven.plugin.surefire.SurefireHelper.reportExecution;
  import static org.apache.maven.surefire.api.suite.RunResult.noTestsRun;
  import static org.apache.maven.surefire.shared.utils.StringUtils.capitalizeFirstLetter;
  
  /**
   * Verify integration tests ran using Failsafe.
   *
   * @author Stephen Connolly
   * @author Jason van Zyl
   */
  @SuppressWarnings("unused")
  @Mojo(name = "verify", defaultPhase = LifecyclePhase.VERIFY, requiresProject = true, threadSafe = true)
  public class VerifyMojo extends AbstractMojo implements SurefireReportParameters {
  
      /**
       * Set this to 'true' to skip running tests, but still compile them. Its use is NOT RECOMMENDED, but quite
       * convenient on occasion.
       *
       * @since 2.4
       */
      @Parameter(property = "skipTests")
      private boolean skipTests;
  
      /**
       * Set this to 'true' to skip running integration tests, but still compile them. Its use is NOT RECOMMENDED, but
       * quite convenient on occasion.
       *
       * @since 2.4.3-alpha-2
       */
      @Parameter(property = "skipITs")
      private boolean skipITs;
  
      /**
       * This old parameter is just like skipTests, but bound to the old property maven.test.skip.exec.
       *
       * @since 2.3
       * @deprecated Use -DskipTests instead.
       */
      @Deprecated
      @Parameter(property = "maven.test.skip.exec")
      private boolean skipExec;
  
      /**
       * Set this to 'true' to bypass unit tests entirely. Its use is NOT RECOMMENDED, especially if you
       * enable it using the "maven.test.skip" property, because maven.test.skip disables both running the
       * tests and compiling the tests.  Consider using the skipTests parameter instead.
       */
      @Parameter(property = "maven.test.skip", defaultValue = "false")
      private boolean skip;
  
      /**
       * Set this to true to ignore a failure during testing. Its use is NOT RECOMMENDED, but quite convenient on
       * occasion.
       */
      @Parameter(property = "maven.test.failure.ignore", defaultValue = "false")
      private boolean testFailureIgnore;
  
      /**
      * The base directory of the project being tested. This can be obtained in your unit test by
      * System.getProperty("basedir").
      */
     @Parameter(defaultValue = "${basedir}")
     private File basedir;
 
     /**
      * The directory containing generated test classes of the project being tested.
      * This will be included at the beginning the test classpath.
      */
     @Parameter(defaultValue = "${project.build.testOutputDirectory}")
     private File testClassesDirectory;
 
     /**
      * Base directory where all reports are written to.
      */
     @Parameter(defaultValue = "${project.build.directory}/failsafe-reports")
     private File reportsDirectory;
 
     /**
      * The summary file to read integration test results from.
      */
     @Parameter(defaultValue = "${project.build.directory}/failsafe-reports/failsafe-summary.xml", required = true)
     private File summaryFile;
 
     /**
      * Additional summary files to read integration test results from.
      * @since 2.6
      */
     @Parameter
     private File[] summaryFiles;
 
     /**
      * Set this to "true" to cause a failure if there are no tests to run. Defaults to "false".
      *
      * @since 2.4
      */
     @Parameter(property = "failIfNoTests", defaultValue = "false")
     private boolean failIfNoTests;
 
     /**
      * Set this to a value greater than 0 to fail the whole test set if the cumulative number of flakes reaches
      * this threshold. Set to 0 to allow an unlimited number of flakes.
      *
      * @since 3.0.0-M6
      */
     @Parameter(property = "failsafe.failOnFlakeCount", defaultValue = "0")
     private int failOnFlakeCount;
 
     /**
      * The current build session instance.
      */
     @Parameter(defaultValue = "${session}", readonly = true)
     private MavenSession session;
 
     private final Logger logger;
 
     private Collection<CommandLineOption> cli;
 
     private volatile PluginConsoleLogger consoleLogger;
 
     public VerifyMojo() {
         this.logger = LoggerFactory.getLogger(getClass());
     }
 
     public VerifyMojo(Logger logger) {
         this.logger = logger;
     }
 
     @Override
     public void execute() throws MojoExecutionException, MojoFailureException {
         cli = commandLineOptions();
         if (verifyParameters()) {
             logDebugOrCliShowErrors(
                     capitalizeFirstLetter(getPluginName()) + " report directory: " + getReportsDirectory());
 
             try {
                 RunResult summary = existsSummaryFile() ? readSummary(summaryFile) : noTestsRun();
 
                 if (existsSummaryFiles()) {
                     for (final File summaryFile : summaryFiles) {
                         summary = summary.aggregate(readSummary(summaryFile));
                     }
                 }
                 reportExecution(this, summary, getConsoleLogger(), getBooterForkException(summary));
             } catch (IOException e) {
                 throw new MojoExecutionException(e.getMessage(), e);
             }
         }
     }
 
     private Exception getBooterForkException(RunResult summary) {
         String firstForkExceptionFailureMessage = String.format("%s: ", SurefireBooterForkException.class.getName());
         if (summary.getFailure() != null && summary.getFailure().contains(firstForkExceptionFailureMessage)) {
             return new SurefireBooterForkException(
                     summary.getFailure().substring(firstForkExceptionFailureMessage.length()));
         }
         return null;
     }
 
     private PluginConsoleLogger getConsoleLogger() {
         if (consoleLogger == null) {
             synchronized (this) {
                 if (consoleLogger == null) {
                     consoleLogger = new PluginConsoleLogger(logger);
                 }
             }
         }
         return consoleLogger;
     }
 
     private RunResult readSummary(File summaryFile) throws IOException {
         return FailsafeSummaryXmlUtils.toRunResult(summaryFile);
     }
 
     protected boolean verifyParameters() throws MojoFailureException {
         if (isSkip() || isSkipTests() || isSkipITs() || isSkipExec()) {
             getConsoleLogger().info("Tests are skipped.");
             return false;
         }
 
         if (!getTestClassesDirectory().exists()) {
             if (getFailIfNoTests()) {
                 throw new MojoFailureException("No tests to run!");
             }
         }
 
         if (!existsSummary()) {
             getConsoleLogger().info("No tests to run.");
             return false;
         }
 
         if (failOnFlakeCount < 0) {
             throw new MojoFailureException("Parameter \"failOnFlakeCount\" should not be negative.");
         }
 
         return true;
     }
 
     protected String getPluginName() {
         return "failsafe";
     }
 
     protected String[] getDefaultIncludes() {
         return null;
     }
 
     @Override
     public boolean isSkipTests() {
         return skipTests;
     }
 
     @Override
     public void setSkipTests(boolean skipTests) {
         this.skipTests = skipTests;
     }
 
     public boolean isSkipITs() {
         return skipITs;
     }
 
     public void setSkipITs(boolean skipITs) {
         this.skipITs = skipITs;
     }
 
     @Override
     @Deprecated
     public boolean isSkipExec() {
         return skipExec;
     }
 
     @Override
     @Deprecated
     public void setSkipExec(boolean skipExec) {
         this.skipExec = skipExec;
     }
 
     @Override
     public boolean isSkip() {
         return skip;
     }
 
     @Override
     public void setSkip(boolean skip) {
         this.skip = skip;
     }
 
     @Override
     public boolean isTestFailureIgnore() {
         return testFailureIgnore;
     }
 
     @Override
     public void setTestFailureIgnore(boolean testFailureIgnore) {
         this.testFailureIgnore = testFailureIgnore;
     }
 
     @Override
     public File getBasedir() {
         return basedir;
     }
 
     @Override
     public void setBasedir(File basedir) {
         this.basedir = basedir;
     }
 
     @Override
     public File getTestClassesDirectory() {
         return testClassesDirectory;
     }
 
     @Override
     public void setTestClassesDirectory(File testClassesDirectory) {
         this.testClassesDirectory = testClassesDirectory;
     }
 
     @Override
     public File getReportsDirectory() {
         return reportsDirectory;
     }
 
     @Override
     public void setReportsDirectory(File reportsDirectory) {
         this.reportsDirectory = reportsDirectory;
     }
 
     public File getSummaryFile() {
         return summaryFile;
     }
 
     public void setSummaryFile(File summaryFile) {
         this.summaryFile = summaryFile;
     }
 
     @Override
     public boolean getFailIfNoTests() {
         return failIfNoTests;
     }
 
     @Override
     public void setFailIfNoTests(boolean failIfNoTests) {
         this.failIfNoTests = failIfNoTests;
     }
 
     @Override
     public int getFailOnFlakeCount() {
         return failOnFlakeCount;
     }
 
     @Override
     public void setFailOnFlakeCount(int failOnFlakeCount) {
         this.failOnFlakeCount = failOnFlakeCount;
     }
 
     public MavenSession getSession() {
         return session;
     }
 
     public void setSession(MavenSession session) {
         this.session = session;
     }
 
     private boolean existsSummaryFile() {
         return summaryFile != null && summaryFile.isFile();
     }
 
     private boolean existsSummaryFiles() {
         return summaryFiles != null && summaryFiles.length != 0;
     }
 
     private boolean existsSummary() {
         return existsSummaryFile() || existsSummaryFiles();
     }
 
     private Collection<CommandLineOption> commandLineOptions() {
         return SurefireHelper.commandLineOptions(session, getConsoleLogger());
     }
 
     private void logDebugOrCliShowErrors(String s) {
         SurefireHelper.logDebugOrCliShowErrors(s, getConsoleLogger(), cli);
     }
 }