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package com.arakelian.elastic.model;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.annotation.JsonPropertyOrder;
import com.google.common.base.MoreObjects;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import com.google.errorprone.annotations.Var;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import javax.annotation.CheckReturnValue;
import javax.annotation.Generated;
import javax.annotation.Nullable;
import javax.annotation.ParametersAreNonnullByDefault;
import javax.annotation.concurrent.Immutable;
import javax.annotation.concurrent.NotThreadSafe;

/**
 * Immutable implementation of {@link ElasticError}.
 * 
 * Use the builder to create immutable instances:
 * {@code ImmutableElasticError.builder()}.
 */
@SuppressWarnings({"all"})
@ParametersAreNonnullByDefault
@Generated("org.immutables.processor.ProxyProcessor")
@Immutable
@CheckReturnValue
public final class ImmutableElasticError implements ElasticError {
  private final Cause error;
  private final int status;

  private ImmutableElasticError(ImmutableElasticError.Builder builder) {
    this.error = builder.error;
    this.status = builder.status;
  }

  /**
   * @return The value of the {@code error} attribute
   */
  @JsonProperty("error")
  @Override
  public Cause getError() {
    return error;
  }

  /**
   * @return The value of the {@code status} attribute
   */
  @JsonProperty("status")
  @Override
  public int getStatus() {
    return status;
  }

  /**
   * This instance is equal to all instances of {@code ImmutableElasticError} that have equal attribute values.
   * @return {@code true} if {@code this} is equal to {@code another} instance
   */
  @Override
  public boolean equals(@Nullable Object another) {
    if (this == another) return true;
    return another instanceof ImmutableElasticError
        && equalTo((ImmutableElasticError) another);
  }

  private boolean equalTo(ImmutableElasticError another) {
    return error.equals(another.error)
        && status == another.status;
  }

  /**
   * Computes a hash code from attributes: {@code error}, {@code status}.
   * @return hashCode value
   */
  @Override
  public int hashCode() {
    @Var int h = 5381;
    h += (h << 5) + error.hashCode();
    h += (h << 5) + status;
    return h;
  }

  /**
   * Prints the immutable value {@code ElasticError} with attribute values.
   * @return A string representation of the value
   */
  @Override
  public String toString() {
    return MoreObjects.toStringHelper("ElasticError")
        .omitNullValues()
        .add("error", error)
        .add("status", status)
        .toString();
  }

  /**
   * Creates a builder for {@link ImmutableElasticError ImmutableElasticError}.
   * @return A new ImmutableElasticError builder
   */
  public static ImmutableElasticError.Builder builder() {
    return new ImmutableElasticError.Builder();
  }

  /**
   * Builds instances of type {@link ImmutableElasticError ImmutableElasticError}.
   * Initialize attributes and then invoke the {@link #build()} method to create an
   * immutable instance.
   * {@code Builder} is not thread-safe and generally should not be stored in a field or collection,
   * but instead used immediately to create instances.
   */
  @NotThreadSafe
  @JsonPropertyOrder({"status", "error"})
  public static final class Builder {
    private static final long INIT_BIT_ERROR = 0x1L;
    private static final long INIT_BIT_STATUS = 0x2L;
    private long initBits = 0x3L;

    private @Nullable Cause error;
    private int status;

    private Builder() {
    }

    /**
     * Fill a builder with attribute values from the provided {@code ElasticError} instance.
     * Regular attribute values will be replaced with those from the given instance.
     * Absent optional values will not replace present values.
     * @param instance The instance from which to copy values
     * @return {@code this} builder for use in a chained invocation
     */
    @CanIgnoreReturnValue 
    public final Builder from(ElasticError instance) {
      Objects.requireNonNull(instance, "instance");
      error(instance.getError());
      status(instance.getStatus());
      return this;
    }

    /**
     * Initializes the value for the {@link ElasticError#getError() error} attribute.
     * @param error The value for error 
     * @return {@code this} builder for use in a chained invocation
     */
    @CanIgnoreReturnValue 
    @JsonProperty("error")
    public final Builder error(Cause error) {
      this.error = Objects.requireNonNull(error, "error");
      initBits &= ~INIT_BIT_ERROR;
      return this;
    }

    /**
     * Initializes the value for the {@link ElasticError#getStatus() status} attribute.
     * @param status The value for status 
     * @return {@code this} builder for use in a chained invocation
     */
    @CanIgnoreReturnValue 
    @JsonProperty("status")
    public final Builder status(int status) {
      this.status = status;
      initBits &= ~INIT_BIT_STATUS;
      return this;
    }

    /**
     * Builds a new {@link ImmutableElasticError ImmutableElasticError}.
     * @return An immutable instance of ElasticError
     * @throws java.lang.IllegalStateException if any required attributes are missing
     */
    public ImmutableElasticError build() {
      if (initBits != 0) {
        throw new IllegalStateException(formatRequiredAttributesMessage());
      }
      return new ImmutableElasticError(this);
    }

    private String formatRequiredAttributesMessage() {
      List attributes = new ArrayList<>();
      if ((initBits & INIT_BIT_ERROR) != 0) attributes.add("error");
      if ((initBits & INIT_BIT_STATUS) != 0) attributes.add("status");
      return "Cannot build ElasticError, some of required attributes are not set " + attributes;
    }
  }
}