package org.apache.maven.plugins.assembly.artifact;
   
   /*
    * 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.
   */
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.shared.artifact.filter.resolve.ScopeFilter;
  
  import java.util.LinkedHashSet;
  import java.util.Set;
  
  /**
   * Helper class used to accumulate scopes and modules (with binaries included) that are used in an assembly, for the
   * purposes of creating an aggregated managed-version map with dependency version conflicts resolved.
   *
   * @author jdcasey
   */
  class ResolutionManagementInfo
  {
      private ScopeFilter scopeFilter;
  
      private final Set<MavenProject> enabledProjects = new LinkedHashSet<MavenProject>();
  
      private final LinkedHashSet<Artifact> artifacts = new LinkedHashSet<Artifact>();
  
      private boolean resolutionRequired;
  
      private boolean resolvedTransitively;
  
      ResolutionManagementInfo( final MavenProject currentProject )
      {
          enabledProjects.add( currentProject );
      }
  
      boolean isResolutionRequired()
      {
          return resolutionRequired;
      }
  
      void setResolutionRequired( final boolean resolutionRequired )
      {
          this.resolutionRequired = resolutionRequired;
      }
  
      boolean isResolvedTransitively()
      {
          return resolvedTransitively;
      }
  
      void setResolvedTransitively( final boolean resolvedTransitively )
      {
          this.resolvedTransitively = this.resolvedTransitively || resolvedTransitively;
      }
  
      ScopeFilter getScopeFilter()
      {
          return scopeFilter;
      }
      
      void setScopeFilter( ScopeFilter scopeFilter )
      {
          this.scopeFilter = scopeFilter;
      }
  
  
  
      void enableProjectResolution( final MavenProject project )
      {
          if ( !enabledProjects.contains( project ) )
          {
              enabledProjects.add( project );
          }
      }
  
      Set<MavenProject> getEnabledProjects()
      {
          return enabledProjects;
      }
  
      Set<Artifact> getArtifacts()
      {
          return artifacts;
     }
 
     void addArtifacts( final Set<Artifact> a )
     {
         for ( Artifact artifact : a )
         {
             addOneArtifact( artifact );
         }
         artifacts.addAll( a );
     }
 
     private void addOneArtifact( Artifact artifact )
     {
         for ( Artifact existing : artifacts )
         {
             if ( existing.equals( artifact ) )
             {
                 if ( isScopeUpgrade( artifact, existing ) )
                 {
                     artifacts.remove( existing );
                     artifacts.add( artifact );
                     return;
                 }
             }
         }
     }
 
     private boolean isScopeUpgrade( Artifact a, Artifact existing )
     {
         return scopeValue( a.getScope() ) > scopeValue( existing.getScope() );
     }
 
     private int scopeValue( final String scope )
     {
         if ( Artifact.SCOPE_COMPILE.equals( scope ) )
         {
             return 5;
         }
         else if ( Artifact.SCOPE_PROVIDED.equals( scope ) )
         {
             return 4;
         }
         else if ( Artifact.SCOPE_RUNTIME.equals( scope ) )
         {
             return 3;
         }
         else if ( Artifact.SCOPE_SYSTEM.equals( scope ) )
         {
             return 2;
         }
         else if ( Artifact.SCOPE_TEST.equals( scope ) )
         {
             return 1;
         }
         return 0;
     }
 
 }