/*
    * 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.propertyhelper.definitions;
  
  import static com.google.common.base.Preconditions.checkNotNull;
  
  import org.basepom.mojo.propertyhelper.FieldContext;
  import org.basepom.mojo.propertyhelper.ValueCache;
  import org.basepom.mojo.propertyhelper.ValueProvider;
  import org.basepom.mojo.propertyhelper.fields.UuidField;
  
  import java.io.IOException;
  import java.util.Objects;
  import java.util.Optional;
  import java.util.StringJoiner;
  import java.util.UUID;
  
  import com.google.common.annotations.VisibleForTesting;
  
  public class UuidDefinition extends FieldDefinition<String> {
  
      /**
       * Value for this uuid. Field injected by Maven.
       */
      String value = null;
  
      public UuidDefinition() {}
  
      @VisibleForTesting
      UuidDefinition(String id) {
          super(id);
      }
  
      public Optional<UUID> getValue() {
          return Optional.ofNullable(value).map(UUID::fromString);
      }
  
      @Override
      public UuidField createField(FieldContext context, ValueCache valueCache) throws IOException {
          checkNotNull(context, "context is null");
          checkNotNull(valueCache, "valueCache is null");
  
          check();
  
          final ValueProvider uuidValue = valueCache.getValueProvider(this);
          return new UuidField(this, uuidValue, context);
      }
  
      @Override
      public String toString() {
          return new StringJoiner(", ", UuidDefinition.class.getSimpleName() + "[", "]")
              .add("value='" + value + "'")
              .add(super.toString())
              .toString();
      }
  
      @Override
      public boolean equals(Object o) {
          if (this == o) {
              return true;
          }
          if (o == null || getClass() != o.getClass()) {
              return false;
          }
          if (!super.equals(o)) {
              return false;
          }
          UuidDefinition that = (UuidDefinition) o;
          return Objects.equals(value, that.value);
      }
  
      @Override
      public int hashCode() {
          return Objects.hash(super.hashCode(), value);
      }
  }