/*
    * SPDX-FileCopyrightText: none
    * SPDX-License-Identifier: CC0-1.0
    */
   
   package dev.metaschema.schemagen.json.impl;
   
   import com.fasterxml.jackson.databind.node.ObjectNode;
   
  import java.util.List;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  
  import dev.metaschema.core.model.IFieldDefinition;
  import dev.metaschema.core.model.IFieldInstanceGrouped;
  import dev.metaschema.core.util.ObjectUtils;
  import edu.umd.cs.findbugs.annotations.NonNull;
  
  /**
   * Supports generation of a JSON schema based on a Metaschema
   * {@link IFieldInstanceGrouped}, which can be generated inline or as a JSON
   * schema definition.
   */
  public class JsonSchemaPropertyGroupedField
      extends AbstractJsonSchemaPropertyGrouped<IFieldInstanceGrouped>
      implements IJsonSchemaDefinitionField {
    @NonNull
    private final IDataTypeJsonSchema fieldValueDataType;
    @NonNull
    private final List<? extends IJsonSchemaPropertyNamed> nonValueProperties;
  
    /**
     * Construct a new JSON schema property.
     *
     * @param instance
     *          the instance to construct the property for
     * @param state
     *          the JSON generation state used to get JSON schema information
     */
    public JsonSchemaPropertyGroupedField(
        @NonNull IFieldInstanceGrouped instance,
        @NonNull IJsonGenerationState state) {
      super(instance, state);
      this.fieldValueDataType = state.getDataTypeSchemaForDefinition(instance.getDefinition());
      this.nonValueProperties = ObjectUtils.notNull(Stream.concat(
          getFlagProperties().stream(),
          Stream.of(new DiscriminatorProperty()))
          .collect(Collectors.toUnmodifiableList()));
    }
  
    @Override
    public IFieldDefinition getDefinition() {
      return getInstance().getDefinition();
    }
  
    @Override
    public List<? extends IJsonSchemaPropertyNamed> getNonValueProperties() {
      return nonValueProperties;
    }
  
    @Override
    public IDataTypeJsonSchema getFieldValue() {
      return fieldValueDataType;
    }
  
    @Override
    public void generateBody(ObjectNode node, IJsonGenerationState state) {
      JsonSchemaHelper.generateFieldBody(this, node, state);
    }
  }