/*
    * SPDX-FileCopyrightText: Copyright (c) 2011-2025 Yegor Bugayenko
    * SPDX-License-Identifier: MIT
    */
   package com.qulice.pmd;
   
   import com.qulice.spi.Environment;
   import java.util.Collection;
   import java.util.Collections;
  import java.util.LinkedList;
  import net.sourceforge.pmd.Report.ConfigurationError;
  import net.sourceforge.pmd.Report.ProcessingError;
  import net.sourceforge.pmd.RuleViolation;
  
  /**
   * Listener of PMD errors.
   *
   * @since 0.3
   */
  @SuppressWarnings("deprecation")
  final class PmdListener implements net.sourceforge.pmd.ThreadSafeReportListener {
  
      /**
       * Environment.
       */
      private final Environment env;
  
      /**
       * All errors spotted (mostly violations, but also processing
       * and config errors).
       */
      private final Collection<PmdError> violations;
  
      /**
       * Public ctor.
       * @param environ Environment
       */
      PmdListener(final Environment environ) {
          this.violations = new LinkedList<>();
          this.env = environ;
      }
  
      @Override
      public void metricAdded(final net.sourceforge.pmd.stat.Metric metric) {
          // ignore it
      }
  
      @Override
      public void ruleViolationAdded(final RuleViolation violation) {
          final String name = violation.getFilename().substring(
              this.env.basedir().toString().length()
          );
          if (!this.env.exclude("pmd", name)) {
              this.violations.add(new PmdError.OfRuleViolation(violation));
          }
      }
  
      /**
       * Registers a new ProcessingError.
       * @param error A processing error that needs to be reported.
       * @todo #1129 If was added to avoid failing build, but there should be
       *  better place for this check.
       */
      public void onProcessingError(final ProcessingError error) {
          if (error.getFile().endsWith(".java")) {
              this.violations.add(new PmdError.OfProcessingError(error));
          }
      }
  
      /**
       * Registers a new ConfigurationError.
       * @param error A configuration error that needs to be reported.
       */
      public void onConfigError(final ConfigurationError error) {
          this.violations.add(new PmdError.OfConfigError(error));
      }
  
      /**
       * Get list of violations.
       * @return List of violations
       */
      public Collection<PmdError> errors() {
          return Collections.unmodifiableCollection(this.violations);
      }
  }