/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache License, Version 2.0 (the
    * "License"); you may not use this file except in compliance
    * with the License.  You may obtain a copy of the License at
    *
   *   http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing,
   * software distributed under the License is distributed on an
   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   * KIND, either express or implied.  See the License for the
   * specific language governing permissions and limitations
   * under the License.
   */
  package org.eclipse.aether.impl.scope;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.HashSet;
  import java.util.Objects;
  import java.util.Set;
  
  /**
   * Set of constants meant to be used in "common builds".
   *
   * @since 2.0.0
   */
  public final class CommonBuilds {
      private CommonBuilds() {}
  
      private abstract static class Label {
          private final String id;
  
          protected Label(String id) {
              this.id = id;
          }
  
          public String getId() {
              return id;
          }
  
          @Override
          public boolean equals(Object o) {
              if (this == o) {
                  return true;
              }
              if (o == null || getClass() != o.getClass()) {
                  return false;
              }
              Label label = (Label) o;
              return Objects.equals(id, label.id);
          }
  
          @Override
          public int hashCode() {
              return Objects.hash(id);
          }
  
          @Override
          public String toString() {
              return id;
          }
      }
  
      private static final class ProjectPathImpl extends Label implements ProjectPath {
          private final int order;
          private final int reverseOrder;
  
          private ProjectPathImpl(String id, int order, int reverseOrder) {
              super(id);
              this.order = order;
              this.reverseOrder = reverseOrder;
          }
  
          @Override
          public int order() {
              return order;
          }
  
          @Override
          public int reverseOrder() {
              return reverseOrder;
          }
      }
  
      private static final class BuildPathImpl extends Label implements BuildPath {
          private final boolean reverse;
          private final int order;
  
          private BuildPathImpl(String id, boolean reverse, int order) {
              super(id);
              this.reverse = reverse;
              this.order = order;
          }
  
         @Override
         public boolean isReverse() {
             return reverse;
         }
 
         @Override
         public int order() {
             return order;
         }
     }
 
     private static final class BuildScopeImpl extends Label implements BuildScope {
         private final Set<ProjectPath> projectPaths;
         private final Set<BuildPath> buildPaths;
         private final int order;
 
         private BuildScopeImpl(String id, Set<ProjectPath> projectPaths, Set<BuildPath> buildPaths, int order) {
             super(id);
             this.projectPaths = projectPaths;
             this.buildPaths = buildPaths;
             this.order = order;
         }
 
         @Override
         public Set<ProjectPath> getProjectPaths() {
             return projectPaths;
         }
 
         @Override
         public Set<BuildPath> getBuildPaths() {
             return buildPaths;
         }
 
         @Override
         public int order() {
             return order;
         }
     }
 
     /**
      * A common "main" project path.
      */
     public static final ProjectPath PROJECT_PATH_MAIN = new ProjectPathImpl("main", 1, 3);
 
     /**
      * A common "test" project path.
      */
     public static final ProjectPath PROJECT_PATH_TEST = new ProjectPathImpl("test", 2, 1);
 
     /**
      * A common "it" project path.
      */
     public static final ProjectPath PROJECT_PATH_IT = new ProjectPathImpl("it", 3, 2);
 
     /**
      * A common "preprocess" build path.
      */
     public static final BuildPath BUILD_PATH_PREPROCESS = new BuildPathImpl("preprocess", false, 1);
 
     /**
      * A common "compile" build path.
      */
     public static final BuildPath BUILD_PATH_COMPILE = new BuildPathImpl("compile", false, 2);
 
     /**
      * A common "runtime" build path.
      */
     public static final BuildPath BUILD_PATH_RUNTIME = new BuildPathImpl("runtime", true, 3);
 
     /**
      * Maven2/Maven3 special build scope: it did not distinguish between "test compile"
      * and "test runtime", but lumped both together into "test".
      */
     public static final BuildScope MAVEN_TEST_BUILD_SCOPE = new BuildScopeImpl(
             "test",
             Collections.singleton(PROJECT_PATH_TEST),
             Collections.unmodifiableSet(new HashSet<>(Arrays.asList(BUILD_PATH_COMPILE, BUILD_PATH_RUNTIME))),
             10);
 }