package jalview.schemes;

import jalview.api.FeatureColourI;
import jalview.api.FeatureSettingsI;

import java.awt.Color;

/**
 * Pre-set configurations for feature settings
 * 
 * @author gmcarstairs
 *
 */
public enum FeatureColourScheme implements FeatureSettingsI
{
  /**
   * Show sequence variants in red, on top of exons coloured by label
   */
  EnsemblVariants
  {

    @Override
    public boolean isFeatureDisplayed(String type)
    {
      // TODO accept SO sub-types of these features
      // if (SequenceOntologyFactory.getInstance().isA(SequenceOntologyI.EXON...
      return (EXON.equals(type) || SEQUENCE_VARIANT.equals(type));
    }

    @Override
    public boolean isGroupDisplayed(String group)
    {
      return true;
    }

    @Override
    public FeatureColourI getFeatureColour(String type)
    {
      if (EXON.equals(type))
      {
        return new FeatureColourAdapter()
        {
          @Override
          public boolean isColourByLabel()
          {
            return true;
          }
        };
      }
      if (SEQUENCE_VARIANT.equals(type))
      {
        return new FeatureColourAdapter()
        {

          @Override
          public Color getColour()
          {
            return Color.RED;
          }
        };
      }
      return null;
    }

    @Override
    public float getTransparency()
    {
      return 1f;
    }

    /**
     * Order sequence_variant above exon above the rest
     */
    @Override
    public int compareTo(String feature1, String feature2)
    {
      if (SEQUENCE_VARIANT.equals(feature1))
      {
        return -1;
      }
      if (SEQUENCE_VARIANT.equals(feature2))
      {
        return +1;
      }
      if (EXON.equals(feature1))
      {
        return -1;
      }
      if (EXON.equals(feature2))
      {
        return +1;
      }
      return 0;
    }

    @Override
    public boolean optimiseOrder()
    {
      return false;
    };

  };

  // SequenceOntologyI.SEQUENCE_VARIANT
  private static final String SEQUENCE_VARIANT = "sequence_variant";

  // SequenceOntologyI.EXON
  private static final String EXON = "exon";
}