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Java client for Algolia Search API
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// Code generated by OpenAPI Generator (https://openapi-generator.tech), manual changes will be lost
// - read more on https://github.com/algolia/api-clients-automation. DO NOT EDIT.

package com.algolia.model.search;

import com.algolia.exceptions.AlgoliaRuntimeException;
import com.fasterxml.jackson.annotation.*;
import com.fasterxml.jackson.core.*;
import com.fasterxml.jackson.databind.*;
import com.fasterxml.jackson.databind.annotation.*;
import java.io.IOException;
import java.util.logging.Logger;

/**
 * Determines how many records of a group are included in the search results. Records with the same
 * value for the `attributeForDistinct` attribute are considered a group. The `distinct` setting
 * controls how many members of the group are returned. This is useful for [deduplication and
 * grouping](https://www.algolia.com/doc/guides/managing-results/refine-results/grouping/#introducing-algolias-distinct-feature).
 * The `distinct` setting is ignored if `attributeForDistinct` is not set.
 */
@JsonDeserialize(using = Distinct.Deserializer.class)
public interface Distinct {
  // Distinct as Boolean wrapper.
  static Distinct of(Boolean value) {
    return new BooleanWrapper(value);
  }

  // Distinct as Integer wrapper.
  static Distinct of(Integer value) {
    return new IntegerWrapper(value);
  }

  // Distinct as Boolean wrapper.
  @JsonSerialize(using = BooleanWrapper.Serializer.class)
  class BooleanWrapper implements Distinct {

    private final Boolean value;

    BooleanWrapper(Boolean value) {
      this.value = value;
    }

    public Boolean getValue() {
      return value;
    }

    static class Serializer extends JsonSerializer {

      @Override
      public void serialize(BooleanWrapper value, JsonGenerator gen, SerializerProvider provider) throws IOException {
        gen.writeObject(value.getValue());
      }
    }
  }

  // Distinct as Integer wrapper.
  @JsonSerialize(using = IntegerWrapper.Serializer.class)
  class IntegerWrapper implements Distinct {

    private final Integer value;

    IntegerWrapper(Integer value) {
      this.value = value;
    }

    public Integer getValue() {
      return value;
    }

    static class Serializer extends JsonSerializer {

      @Override
      public void serialize(IntegerWrapper value, JsonGenerator gen, SerializerProvider provider) throws IOException {
        gen.writeObject(value.getValue());
      }
    }
  }

  class Deserializer extends JsonDeserializer {

    private static final Logger LOGGER = Logger.getLogger(Deserializer.class.getName());

    @Override
    public Distinct deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException {
      JsonNode tree = jp.readValueAsTree();
      // deserialize Boolean
      if (tree.isBoolean()) {
        try (JsonParser parser = tree.traverse(jp.getCodec())) {
          Boolean value = parser.readValueAs(Boolean.class);
          return new Distinct.BooleanWrapper(value);
        } catch (Exception e) {
          // deserialization failed, continue
          LOGGER.finest("Failed to deserialize oneOf Boolean (error: " + e.getMessage() + ") (type: Boolean)");
        }
      }
      // deserialize Integer
      if (tree.isInt()) {
        try (JsonParser parser = tree.traverse(jp.getCodec())) {
          Integer value = parser.readValueAs(Integer.class);
          return new Distinct.IntegerWrapper(value);
        } catch (Exception e) {
          // deserialization failed, continue
          LOGGER.finest("Failed to deserialize oneOf Integer (error: " + e.getMessage() + ") (type: Integer)");
        }
      }
      throw new AlgoliaRuntimeException(String.format("Failed to deserialize json element: %s", tree));
    }

    /** Handle deserialization of the 'null' value. */
    @Override
    public Distinct getNullValue(DeserializationContext ctxt) throws JsonMappingException {
      throw new JsonMappingException(ctxt.getParser(), "Distinct cannot be null");
    }
  }
}