/*
    * The MIT License (MIT)
    *
    * Copyright (c) 2013-2026 The Coveralls Maven Plugin Project Contributors:
    *     https://github.com/hazendaz/coveralls-maven-plugin/graphs/contributors
    *
    * 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;
  
  /**
   * The Class CloverParser.
   */
  public class CloverParser extends AbstractXmlEventParser {
  
      /** The source. */
      private Source source;
  
      /** The package name. */
      private String packageName;
  
      /**
       * Instantiates a new clover parser.
       *
       * @param coverageFile
       *            the coverage file
       * @param sourceLoader
       *            the source loader
       */
      public CloverParser(final File coverageFile, final SourceLoader sourceLoader) {
          super(coverageFile, sourceLoader);
      }
  
      @Override
      protected void onEvent(final XMLStreamReader xml, final SourceCallback callback)
              throws XMLStreamException, ProcessingException, IOException {
          if (this.isStartElement(xml, "package")) {
              this.packageName = xml.getAttributeValue(null, "name");
          } else if (this.isStartElement(xml, "file") && this.packageName != null) {
              final var sourceFile = this.getSourceFile(xml.getAttributeValue(null, "name"));
              this.source = this.loadSource(sourceFile);
          } else if (this.isStartElement(xml, "line") && this.source != null) {
              // lines can be "method", "stmt", or "cond"
              final var type = xml.getAttributeValue(null, "type");
              var coverage = 0;
              if ("method".equals(type) || "stmt".equals(type)) {
                  coverage = Integer.parseInt(xml.getAttributeValue(null, "count")) == 0 ? 0 : 1;
              } else if ("cond".equals(type)) {
                  final var falseCount = Integer.parseInt(xml.getAttributeValue(null, "falsecount"));
                  final var trueCount = Integer.parseInt(xml.getAttributeValue(null, "truecount"));
                  coverage = trueCount == 0 || falseCount == 0 ? 0 : 1;
              }
              final var lineNumber = Integer.parseInt(xml.getAttributeValue(null, "num"));
              this.source.addCoverage(lineNumber, coverage);
          } else if (this.isEndElement(xml, "file") && this.source != null) {
              callback.onSource(this.source);
              this.source = null;
          } else if (this.isEndElement(xml, "package")) {
              this.packageName = null;
          }
      }
  
      /**
       * Gets the source file.
       *
       * @param fileName
       *            the file name
       *
       * @return the source file
       */
      private String getSourceFile(final String fileName) {
          return this.packageName.replace('.', '/') + "/" + fileName;
     }
 }