package com.linkedin.metadata.models;

import com.linkedin.data.schema.RecordDataSchema;
import com.linkedin.data.schema.TyperefDataSchema;
import com.linkedin.metadata.models.annotation.EntityAnnotation;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;


/**
 * A specification of a DataHub Entity
 */
public interface EntitySpec {
  String getName();

  EntityAnnotation getEntityAnnotation();

  String getKeyAspectName();

  AspectSpec getKeyAspectSpec();

  List<AspectSpec> getAspectSpecs();

  Map<String, AspectSpec> getAspectSpecMap();

  Boolean hasAspect(String name);

  AspectSpec getAspectSpec(String name);

  RecordDataSchema getSnapshotSchema();

  TyperefDataSchema getAspectTyperefSchema();

  default List<SearchableFieldSpec> getSearchableFieldSpecs() {
    return getAspectSpecs().stream()
        .map(AspectSpec::getSearchableFieldSpecs)
        .flatMap(List::stream)
        .collect(Collectors.toList());
  }

  default List<SearchScoreFieldSpec> getSearchScoreFieldSpecs() {
    return getAspectSpecs().stream()
        .map(AspectSpec::getSearchScoreFieldSpecs)
        .flatMap(List::stream)
        .collect(Collectors.toList());
  }

  default List<RelationshipFieldSpec> getRelationshipFieldSpecs() {
    return getAspectSpecs().stream()
        .map(AspectSpec::getRelationshipFieldSpecs)
        .flatMap(List::stream)
        .collect(Collectors.toList());
  }
}