content: package dev.ai4j.openai4j.chat;
  
  import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
  import com.fasterxml.jackson.annotation.JsonInclude;
  import com.fasterxml.jackson.annotation.JsonProperty;
  import com.fasterxml.jackson.databind.PropertyNamingStrategies;
  import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
  import com.fasterxml.jackson.databind.annotation.JsonNaming;
  import com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder;
  
  import java.util.Objects;
  
  @JsonDeserialize(builder = ChatCompletionChoice.Builder.class)
  @JsonInclude(JsonInclude.Include.NON_NULL)
  @JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
  public final class ChatCompletionChoice {
  
      @JsonProperty
      private final Integer index;
      @JsonProperty
      private final AssistantMessage message;
      @JsonProperty
      private final Delta delta;
      @JsonProperty
      private final String finishReason;
  
      private ChatCompletionChoice(Builder builder) {
          this.index = builder.index;
          this.message = builder.message;
          this.delta = builder.delta;
          this.finishReason = builder.finishReason;
      }
  
      public Integer index() {
          return index;
      }
  
      public AssistantMessage message() {
          return message;
      }
  
      public Delta delta() {
          return delta;
      }
  
      public String finishReason() {
          return finishReason;
      }
  
      @Override
      public boolean equals(Object another) {
          if (this == another) return true;
          return another instanceof ChatCompletionChoice
                  && equalTo((ChatCompletionChoice) another);
      }
  
      private boolean equalTo(ChatCompletionChoice another) {
          return Objects.equals(index, another.index)
                  && Objects.equals(message, another.message)
                  && Objects.equals(delta, another.delta)
                  && Objects.equals(finishReason, another.finishReason);
      }
  
      @Override
      public int hashCode() {
          int h = 5381;
          h += (h << 5) + Objects.hashCode(index);
          h += (h << 5) + Objects.hashCode(message);
          h += (h << 5) + Objects.hashCode(delta);
          h += (h << 5) + Objects.hashCode(finishReason);
          return h;
      }
  
      @Override
      public String toString() {
          return "ChatCompletionChoice{"
                  + "index=" + index
                  + ", message=" + message
                  + ", delta=" + delta
                  + ", finishReason=" + finishReason
                  + "}";
      }
  
      public static Builder builder() {
          return new Builder();
      }
  
      @JsonPOJOBuilder(withPrefix = "")
      @JsonIgnoreProperties(ignoreUnknown = true)
      @JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
      public static final class Builder {
  
          private Integer index;
          private AssistantMessage message;
          private Delta delta;
          private String finishReason;
  
          private Builder() {
          }
  
          public Builder index(Integer index) {
              this.index = index;
              return this;
          }
  
          public Builder message(AssistantMessage message) {
              this.message = message;
              return this;
          }
  
          public Builder delta(Delta delta) {
              this.delta = delta;
              return this;
          }
  
          public Builder finishReason(String finishReason) {
              this.finishReason = finishReason;
              return this;
          }
  
          public ChatCompletionChoice build() {
              return new ChatCompletionChoice(this);
          }
      }
  }
  