package org.infinispan.configuration.cache;

import static org.infinispan.configuration.parsing.Element.TAKE_OFFLINE;

import org.infinispan.commons.configuration.ConfigurationInfo;
import org.infinispan.commons.configuration.attributes.Attribute;
import org.infinispan.commons.configuration.attributes.AttributeDefinition;
import org.infinispan.commons.configuration.attributes.AttributeSet;
import org.infinispan.commons.configuration.attributes.Matchable;
import org.infinispan.commons.configuration.elements.DefaultElementDefinition;
import org.infinispan.commons.configuration.elements.ElementDefinition;

/**
 * @author Mircea Markus
 * @since 5.2
 */
public class TakeOfflineConfiguration implements Matchable<TakeOfflineConfiguration>, ConfigurationInfo {
   public static final AttributeDefinition<Integer> AFTER_FAILURES = AttributeDefinition.builder("after-failures", 0).immutable().build();
   public static final AttributeDefinition<Long> MIN_TIME_TO_WAIT = AttributeDefinition.builder("min-wait", 0l).immutable().build();
   static AttributeSet attributeDefinitionSet() {
      return new AttributeSet(TakeOfflineConfiguration.class, AFTER_FAILURES, MIN_TIME_TO_WAIT);
   }

   static ElementDefinition ELEMENT_DEFINITION = new DefaultElementDefinition(TAKE_OFFLINE.getLocalName());

   private final Attribute<Integer> afterFailures;
   private final Attribute<Long> minTimeToWait;
   private final AttributeSet attributes;

   public TakeOfflineConfiguration(AttributeSet attributes) {
      this.attributes = attributes.checkProtection();
      afterFailures = attributes.attribute(AFTER_FAILURES);
      minTimeToWait = attributes.attribute(MIN_TIME_TO_WAIT);
   }

   @Override
   public ElementDefinition getElementDefinition() {
      return ELEMENT_DEFINITION;
   }

   /**
    * @see TakeOfflineConfigurationBuilder#afterFailures(int)
    */
   public int afterFailures() {
      return afterFailures.get();
   }

   /**
    * @see TakeOfflineConfigurationBuilder#minTimeToWait(long)
    */
   public long minTimeToWait() {
      return minTimeToWait.get();
   }

   public boolean enabled() {
      return afterFailures() > 0 || minTimeToWait() > 0;
   }

   public AttributeSet attributes() {
      return attributes;
   }

   @Override
   public boolean equals(Object obj) {
      if (this == obj)
         return true;
      if (obj == null)
         return false;
      if (getClass() != obj.getClass())
         return false;
      TakeOfflineConfiguration other = (TakeOfflineConfiguration) obj;
      if (attributes == null) {
         if (other.attributes != null)
            return false;
      } else if (!attributes.equals(other.attributes))
         return false;
      return true;
   }

   @Override
   public int hashCode() {
      final int prime = 31;
      int result = 1;
      result = prime * result + ((attributes == null) ? 0 : attributes.hashCode());
      return result;
   }



   @Override
   public String toString() {
      return "TakeOfflineConfiguration [attributes=" + attributes + "]";
   }
}
