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/*
 * SonarQube
 * Copyright (C) 2009-2024 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.scanner.bootstrap;

import java.lang.annotation.Annotation;
import java.lang.reflect.Array;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;
import javax.annotation.Nullable;
import org.apache.commons.lang.ClassUtils;
import org.sonar.api.batch.DependedUpon;
import org.sonar.api.batch.DependsUpon;
import org.sonar.api.batch.Phase;
import org.sonar.api.utils.AnnotationUtils;
import org.sonar.api.utils.dag.DirectAcyclicGraph;
import org.sonar.core.platform.ExtensionContainer;

public abstract class AbstractExtensionDictionary {

  private final ExtensionContainer componentContainer;

  protected AbstractExtensionDictionary(ExtensionContainer componentContainer) {
    this.componentContainer = componentContainer;
  }

  public  Collection select(Class type, boolean sort, @Nullable ExtensionMatcher matcher) {
    List result = getFilteredExtensions(type, matcher);
    if (sort) {
      return sort(result);
    }
    return result;
  }

  private static Phase.Name evaluatePhase(Object extension) {
    Phase phaseAnnotation = AnnotationUtils.getAnnotation(extension, Phase.class);
    if (phaseAnnotation != null) {
      return phaseAnnotation.name();
    }
    return Phase.Name.DEFAULT;
  }

  protected  List getFilteredExtensions(Class type, @Nullable ExtensionMatcher matcher) {
    List result = new ArrayList<>();

    for (T extension : getExtensions(type)) {
      if (shouldKeep(type, extension, matcher)) {
        result.add(extension);
      }
    }
    return result;
  }

  private  List getExtensions(Class type) {
    List extensions = new ArrayList<>();
    completeScannerExtensions(componentContainer, extensions, type);
    return extensions;
  }

  private static  void completeScannerExtensions(ExtensionContainer container, List extensions, Class type) {
    extensions.addAll(container.getComponentsByType(type));
    ExtensionContainer parentContainer = container.getParent();
    if (parentContainer != null) {
      completeScannerExtensions(parentContainer, extensions, type);
    }
  }

  protected  Collection sort(Collection extensions) {
    DirectAcyclicGraph dag = new DirectAcyclicGraph();

    for (T extension : extensions) {
      dag.add(extension);
      for (Object dependency : getDependencies(extension)) {
        dag.add(extension, dependency);
      }
      for (Object generates : getDependents(extension)) {
        dag.add(generates, extension);
      }
      completePhaseDependencies(dag, extension);
    }
    List sortedList = dag.sort();

    return (Collection) sortedList.stream()
      .filter(extensions::contains)
      .collect(Collectors.toList());
  }

  /**
   * Extension dependencies
   */
  private  List