/*
    * 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 JaCoCoParser extends AbstractXmlEventParser {
  
      private String packageName;
      private Source source;
      private int branchId;
  
      public JaCoCoParser(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, "package")) {
              this.packageName = xml.getAttributeValue(null, "name");
          } else
  
          if (isStartElement(xml, "sourcefile") && packageName != null) {
              String sourceFile = this.packageName + "/" + xml.getAttributeValue(null, "name");
              this.source = loadSource(sourceFile);
              this.branchId = 0;
          } else
  
          if (isStartElement(xml, "line") && this.source != null) {
              int ci = Integer.parseInt(xml.getAttributeValue(null, "ci"));
              int cb = Integer.parseInt(xml.getAttributeValue(null, "cb"));
              int mb = Integer.parseInt(xml.getAttributeValue(null, "mb"));
              int nr = Integer.parseInt(xml.getAttributeValue(null, "nr"));
  
              // jacoco does not count hits. this is why hits is always 0 or 1
              this.source.addCoverage(nr, (ci == 0 ? 0 : 1));
  
              // 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, "sourcefile") && this.source != null) {
              callback.onSource(this.source);
              this.source = null;
          } else
  
          if (isEndElement(xml, "package")) {
              this.packageName = null;
          }
      }
  
  }