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;
  
  import static dev.ai4j.openai4j.chat.ToolType.FUNCTION;
  
  @JsonDeserialize(builder = ToolChoice.Builder.class)
  @JsonInclude(JsonInclude.Include.NON_NULL)
  @JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
  public class ToolChoice {
  
      @JsonProperty
      private final ToolType type = FUNCTION;
      @JsonProperty
      private final Function function;
  
      private ToolChoice(Builder builder) {
          function = builder.function;
      }
  
      @Override
      public boolean equals(Object another) {
          if (this == another) return true;
          return another instanceof ToolChoice
                  && equalTo((ToolChoice) another);
      }
  
      private boolean equalTo(ToolChoice another) {
          return Objects.equals(type, another.type)
                  && Objects.equals(function, another.function);
      }
  
      @Override
      public int hashCode() {
          int h = 5381;
          h += (h << 5) + Objects.hashCode(type);
          h += (h << 5) + Objects.hashCode(function);
          return h;
      }
  
      @Override
      public String toString() {
          return "ToolChoice{" +
                  "type=" + type +
                  ", function=" + function +
                  "}";
      }
  
      public static ToolChoice from(String functionName) {
          return new Builder()
                  .function(Function.builder()
                          .name(functionName).build())
                  .build();
      }
  
      @JsonPOJOBuilder(withPrefix = "")
      @JsonIgnoreProperties(ignoreUnknown = true)
      @JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy.class)
      public static final class Builder {
          private Function function;
  
          private Builder() {
          }
  
          public ToolChoice.Builder function(Function function) {
              this.function = function;
              return this;
          }
  
          public ToolChoice build() {
              return new ToolChoice(this);
          }
      }
  }
  