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package dev.langchain4j.model.ollama;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;

import static com.fasterxml.jackson.databind.SerializationFeature.INDENT_OUTPUT;

class OllamaJsonUtils {

    private OllamaJsonUtils() throws InstantiationException {
        throw new InstantiationException("Can't instantiate this utility class.");
    }

    private static final ObjectMapper OBJECT_MAPPER = new ObjectMapper()
            .enable(INDENT_OUTPUT);

    static String toJson(Object object) {
        try {
            return OBJECT_MAPPER.writeValueAsString(object);
        } catch (JsonProcessingException e) {
            throw new RuntimeException(e);
        }
    }

    static  T toObject(String jsonStr, Class clazz) {
        try {
            return OBJECT_MAPPER.readValue(jsonStr, clazz);
        } catch (JsonProcessingException e) {
            throw new RuntimeException(e);
        }
    }

    static  T toObject(String jsonStr, TypeReference typeReference) {
        try {
            return OBJECT_MAPPER.readValue(jsonStr, typeReference);
        } catch (JsonProcessingException e) {
            throw new RuntimeException(e);
        }
    }

    static ObjectMapper getObjectMapper() {
        return OBJECT_MAPPER;
    }

}