/*
    * Licensed 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.basepom.mojo.dvc.version;
  
  import org.basepom.mojo.dvc.QualifiedName;
  
  import java.util.Objects;
  
  import com.google.common.base.MoreObjects;
  
  public final class VersionResolutionElement
          implements Comparable<VersionResolutionElement> {
  
      /**
       * Requesting Dependency name.
       */
      private final QualifiedName requestingDependency;
  
      /**
       * True if the dependency was managed to this version.
       */
      private final boolean managedDependency;
  
      /**
       * True if this version resolution is directly from the root project.
       */
      private final boolean directDependency;
  
      private boolean conflict = false;
  
      VersionResolutionElement(final QualifiedName requestingDependency, final boolean managedDependency, final boolean directDependency) {
          this.requestingDependency = requestingDependency;
          this.managedDependency = managedDependency;
          this.directDependency = directDependency;
      }
  
      public QualifiedName getRequestingDependency() {
          return requestingDependency;
      }
  
      public boolean isManagedDependency() {
          return managedDependency;
      }
  
      public boolean isDirectDependency() {
          return directDependency;
      }
  
      public void conflict() {
          this.conflict = true;
      }
  
      public boolean hasConflict() {
          return conflict;
      }
  
      @Override
      public boolean equals(final Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
          final VersionResolutionElement that = (VersionResolutionElement) o;
          return managedDependency == that.managedDependency
                  && directDependency == that.directDependency
                  && requestingDependency.equals(that.requestingDependency);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(requestingDependency, managedDependency, directDependency);
      }
  
      @Override
      public String toString() {
          return MoreObjects.toStringHelper(this)
                  .add("requestingDependency", requestingDependency)
                  .add("managedDependency", managedDependency)
                  .add("directDependency", directDependency)
                  .add("conflict", conflict)
                  .toString();
      }
  
      @Override
      public int compareTo(final VersionResolutionElement other) {
         if (other == null) {
             return 1;
         } else if (other == this || equals(other)) {
             return 0;
         } else {
             return getRequestingDependency().getMinimalName().compareTo(other.getRequestingDependency().getMinimalName());
         }
     }
 }