package org.apache.maven.plugin.invoker;

 /*

  * 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.

  */

 import java.io.File;

 import java.io.IOException;

 import java.text.DecimalFormat;

 import java.text.DecimalFormatSymbols;

 import java.text.NumberFormat;

 import java.util.ArrayList;

 import java.util.List;

 import java.util.Locale;

 import org.apache.maven.doxia.sink.Sink;

 import org.apache.maven.doxia.siterenderer.Renderer;

 import org.apache.maven.plugin.invoker.model.BuildJob;

 import org.apache.maven.plugin.invoker.model.io.xpp3.BuildJobXpp3Reader;

 import org.apache.maven.project.MavenProject;

 import org.apache.maven.reporting.AbstractMavenReport;

 import org.apache.maven.reporting.MavenReportException;

 import org.codehaus.plexus.i18n.I18N;

 import org.codehaus.plexus.util.ReaderFactory;

 import org.codehaus.plexus.util.StringUtils;

 import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

 /**

  * Generate a report based on the results of the Maven invocations. <strong>Note:</strong> This mojo doesn't fork any

  * lifecycle, if you have a clean working copy, you have to use a command like

  * <code>mvn clean integration-test site</code> to ensure the build results are present when this goal is invoked.

  * 

  * @goal report

  * @author <a href="mailto:olamy@apache.org">olamy</a>

  * @threadSafe

  * @since 1.4

  */

 public class InvokerReport

     extends AbstractMavenReport

 {

     /**

      * The Maven Project.

      *

      * @parameter default-value="${project}"

      * @required

      * @readonly

      */

     protected MavenProject project;

     /**

      * Doxia Site Renderer component.

      *

      * @component

      */

     protected Renderer siteRenderer;    

     /**

      * Internationalization component.

      *

      * @component

      */

     protected I18N i18n;    

     /**

      * The output directory for the report. Note that this parameter is only evaluated if the goal is run directly from

      * the command line. If the goal is run indirectly as part of a site generation, the output directory configured in

      * the Maven Site Plugin is used instead.

      *

      * @parameter default-value="${project.reporting.outputDirectory}"

      * @required

      */

     protected File outputDirectory;    

     /**

      * Base directory where all build reports have been written to.

      *

      * @parameter expression="${invoker.reportsDirectory}" default-value="${project.build.directory}/invoker-reports"

      */

     private File reportsDirectory; 

     /**

      * The number format used to print percent values in the report locale.

      */

     private NumberFormat percentFormat;

     /**

      * The number format used to print time values in the report locale.

      */

     private NumberFormat secondsFormat;

     protected void executeReport( Locale locale )

         throws MavenReportException

     {

         DecimalFormatSymbols symbols = new DecimalFormatSymbols( locale );

         percentFormat = new DecimalFormat( getText( locale, "report.invoker.format.percent" ), symbols );

         secondsFormat = new DecimalFormat( getText( locale, "report.invoker.format.seconds" ), symbols );

         Sink sink = getSink();

         sink.head();

         sink.title();

         sink.text( getText( locale, "report.invoker.result.title" ) );

         sink.title_();

         sink.head_();

         sink.body();

         sink.section1();

         sink.sectionTitle1();

         sink.text( getText( locale, "report.invoker.result.title" ) );

         sink.sectionTitle1_();

         sink.paragraph();

         sink.text( getText( locale, "report.invoker.result.description" ) );

         sink.paragraph_();

         sink.section1_();

         // ----------------------------------

         //  build buildJob beans

         // ----------------------------------

         File[] reportFiles = ReportUtils.getReportFiles( reportsDirectory );

         if ( reportFiles.length <= 0 )

         {

             getLog().info( "no invoker report files found, skip report generation" );

             return;

         }

         List<BuildJob> buildJobs = new ArrayList<BuildJob>( reportFiles.length );

         for ( int i = 0, size = reportFiles.length; i < size; i++ )

         {

             File reportFile = reportFiles[i];

             try

             {

                 BuildJobXpp3Reader reader = new BuildJobXpp3Reader();

                 buildJobs.add( reader.read( ReaderFactory.newXmlReader( reportFile ) ) );

             }

             catch ( XmlPullParserException e )

             {

                 throw new MavenReportException( "Failed to parse report file: " + reportFile, e );

             }

             catch ( IOException e )

             {

                 throw new MavenReportException( "Failed to read report file: " + reportFile, e );

             }

         }

         // ----------------------------------

         //  summary

         // ----------------------------------

         constructSummarySection( buildJobs, locale );

         // ----------------------------------

         //  per file/it detail

         // ----------------------------------        

         sink.section2();

         sink.sectionTitle2();

         sink.text( getText( locale, "report.invoker.detail.title" ) );

         sink.sectionTitle2_();

         sink.section2_();

         // detail tests table header

         sink.table();

         sink.tableRow();

         // -------------------------------------------

         // name | Result | time | message

         // -------------------------------------------

         sinkTableHeader( sink, getText( locale, "report.invoker.detail.name" ) );

         sinkTableHeader( sink, getText( locale, "report.invoker.detail.result" ) );

         sinkTableHeader( sink, getText( locale, "report.invoker.detail.time" ) );

         sinkTableHeader( sink, getText( locale, "report.invoker.detail.message" ) );

         sink.tableRow_();

         for ( BuildJob buildJob : buildJobs )

         {

             renderBuildJob( buildJob, locale );

         }

         sink.table_();

         sink.body_();

         sink.flush();

         sink.close();

     }

     private void constructSummarySection( List<? extends BuildJob> buildJobs, Locale locale )

     {

         Sink sink = getSink();

         sink.section2();

         sink.sectionTitle2();

         sink.text( getText( locale, "report.invoker.summary.title" ) );

         sink.sectionTitle2_();

         sink.section2_();

         // ------------------------------------------------------------------------

         // Building a table with

         // it number | succes nb | failed nb | Success rate | total time | avg time

         // ------------------------------------------------------------------------

         sink.table();

         sink.tableRow();

         sinkTableHeader( sink, getText( locale, "report.invoker.summary.number" ) );

         sinkTableHeader( sink, getText( locale, "report.invoker.summary.success" ) );

         sinkTableHeader( sink, getText( locale, "report.invoker.summary.failed" ) );

         sinkTableHeader( sink, getText( locale, "report.invoker.summary.success.rate" ) );

         sinkTableHeader( sink, getText( locale, "report.invoker.summary.time.total" ) );

         sinkTableHeader( sink, getText( locale, "report.invoker.summary.time.avg" ) );

         int number = buildJobs.size();

         int success = 0;

         int failed = 0;

         double totalTime = 0;

         for ( BuildJob buildJob : buildJobs )

         {

             if ( BuildJob.Result.SUCCESS.equals( buildJob.getResult() ) )

             {

                 success++;

             }

             else if ( !BuildJob.Result.SKIPPED.equals( buildJob.getResult() ) )

             {

                 failed++;

             }

             totalTime += buildJob.getTime();

         }

         sink.tableRow_();

         sink.tableRow();

         sinkCell( sink, Integer.toString( number ) );

         sinkCell( sink, Integer.toString( success ) );

         sinkCell( sink, Integer.toString( failed ) );

         if ( success + failed > 0 )

         {

             sinkCell( sink, percentFormat.format( (double) success / ( success + failed ) ) );

         }

         else

         {

             sinkCell( sink, "" );

         }

         sinkCell( sink, secondsFormat.format( totalTime ) );

         sinkCell( sink, secondsFormat.format( totalTime / number ) );

         sink.tableRow_();

         sink.table_();

     }

     private void renderBuildJob( BuildJob buildJob, Locale locale )

     {

         Sink sink = getSink();

         sink.tableRow();

         StringBuffer buffer = new StringBuffer();

         if ( !StringUtils.isEmpty( buildJob.getName() ) && !StringUtils.isEmpty( buildJob.getDescription() ) )

         {

             buffer.append( buildJob.getName() );

             buffer.append( " : " );

             buffer.append( buildJob.getDescription() );

         }

         else

         {

             buffer.append( buildJob.getProject() );

         }

         sinkCell( sink, buffer.toString() );

         // FIXME image

         sinkCell( sink, buildJob.getResult() );

         sinkCell( sink, secondsFormat.format( buildJob.getTime() ) );

         sinkCell( sink, buildJob.getFailureMessage() );

         sink.tableRow_();

     }

     protected String getOutputDirectory()

     {

         return outputDirectory.getAbsolutePath();

     }

     protected MavenProject getProject()

     {

         return project;

     }

     protected Renderer getSiteRenderer()

     {

         return siteRenderer;

     }

     public String getDescription( Locale locale )

     {

         return getText( locale, "report.invoker.result.description" );

     }

     public String getName( Locale locale )

     {

         return getText( locale, "report.invoker.result.name" );

     }

     public String getOutputName()

     {

         return "invoker-report";

     }

     public boolean canGenerateReport()

     {

         return ReportUtils.getReportFiles( reportsDirectory ).length > 0;

     }

     private String getText( Locale locale, String key )

     {

         return i18n.getString( "invoker-report", locale, key );

     }

     private void sinkTableHeader( Sink sink, String header )

     {

         sink.tableHeaderCell();

         sink.text( header );

         sink.tableHeaderCell_();

     }

     private void sinkCell( Sink sink, String text )

     {

         sink.tableCell();

         sink.text( text );

         sink.tableCell_();

     }

 }