/*
    * The MIT License (MIT)
    *
    * Copyright (c) 2013 - 2023, Tapio Rautonen
    *
    * Permission is hereby granted, free of charge, to any person obtaining a copy
    * of this software and associated documentation files (the "Software"), to deal
    * in the Software without restriction, including without limitation the rights
    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  package org.eluder.coveralls.maven.plugin.parser;
  
  import java.io.File;
  import java.io.IOException;
  import javax.xml.stream.XMLStreamException;
  import javax.xml.stream.XMLStreamReader;
  
  import org.eluder.coveralls.maven.plugin.ProcessingException;
  import org.eluder.coveralls.maven.plugin.domain.Source;
  import org.eluder.coveralls.maven.plugin.source.SourceCallback;
  import org.eluder.coveralls.maven.plugin.source.SourceLoader;
  
  public class CoberturaParser extends AbstractXmlEventParser {
  
      protected Source source;
      protected boolean inMethods;
      private int branchId;
  
      public CoberturaParser(final File coverageFile, final SourceLoader sourceLoader) {
          super(coverageFile, sourceLoader);
      }
  
      @Override
      protected void onEvent(final XMLStreamReader xml, final SourceCallback callback) throws XMLStreamException, ProcessingException, IOException {
          if (isStartElement(xml, "class")) {
              source = loadSource(xml.getAttributeValue(null, "filename"));
              String className = xml.getAttributeValue(null, "name");
              int classifierPosition = className.indexOf('$');
              if (classifierPosition > 0) {
                  source.setClassifier(className.substring(classifierPosition + 1));
              }
              this.branchId = 0;
          } else
  
          if (isStartElement(xml, "methods") && source != null) {
              inMethods = true;
          } else
  
          if (isEndElement(xml, "methods") && source != null) {
              inMethods = false;
          } else
  
          if (isStartElement(xml, "line") && !inMethods && source != null) {
              final int nr = Integer.parseInt(xml.getAttributeValue(null, "number"));
              source.addCoverage(nr, Integer.valueOf(xml.getAttributeValue(null, "hits")));
              if (Boolean.parseBoolean(xml.getAttributeValue(null, "branch"))) {
                  final String value = xml.getAttributeValue(null, "condition-coverage");
  
                  // Is "condition-coverage" attribute always here?
                  if (value == null) {
                      return;
                  }
  
                  // C'mon Cobertura, human readable format for XML ?
                  final String[] values = value // 50% (2/4)
                          .replace(" ", "")     // 50%(2/4)
                          .replace("%", "/")    // 50/(2/4)
                          .replace("(", "")     // 50/2/4)
                          .replace(")", "")     // 50/2/4
                          .split("/", -1);
  
                  final int cb = Integer.parseInt(values[1]);
                  final int tb = Integer.parseInt(values[2]);
                  final int mb = tb - cb;
  
                  // add branches. unfortunately, there is NO block number and
                  // branch number will NOT be unique between coverage changes.
                  for (int b = 0; b < cb; b++) {
                    this.source.addBranchCoverage(nr, 0, this.branchId++, 1);
                  }
                  for (int b = 0; b < mb; b++) {
                    this.source.addBranchCoverage(nr, 0, this.branchId++, 0);
                  }
              }
          } else
  
         if (isEndElement(xml, "class") && source != null) {
             callback.onSource(source);
             source = null;
         }
     }
 
 }