ydb/yql/essentials/providers/common/codec/yql_json_codec.h

#pragma once

#include <library/cpp/json/json_writer.h>
#include <library/cpp/json/json_reader.h>
#include <yql/essentials/minikql/mkql_node.h>
#include <yql/essentials/minikql/computation/mkql_computation_node_holders.h>
#include <library/cpp/enumbitset/enumbitset.h>

namespace NYql {
namespace NCommon {
namespace NJsonCodec {

using namespace NKikimr;

enum EValueConvertPolicy {
    CONVERT_POLICY_BEGIN,
    NUMBER_AS_STRING = CONVERT_POLICY_BEGIN,
    UNSAFE_NUMBER_AS_STRING,
    BOOL_AS_STRING,
    DISALLOW_NaN,
    CONVERT_POLICY_END
};

using TValueConvertPolicy = TEnumBitSet<EValueConvertPolicy, EValueConvertPolicy::CONVERT_POLICY_BEGIN, EValueConvertPolicy::CONVERT_POLICY_END>;

class DefaultPolicy {
public:
    static DefaultPolicy& getInstance() {
        static DefaultPolicy instance;
        return instance;
    }

private:
    DefaultPolicy() {}

public:
    DefaultPolicy(DefaultPolicy &) = delete;
    void operator=(const DefaultPolicy &) = delete;

    TValueConvertPolicy CloudFunction() const {
        return CloudFunctionPolicy;
    }

    TValueConvertPolicy Export() const {
        return ExportPolicy;
    }

private:
    TValueConvertPolicy CloudFunctionPolicy = TValueConvertPolicy{NUMBER_AS_STRING, BOOL_AS_STRING};
    TValueConvertPolicy ExportPolicy = TValueConvertPolicy{DISALLOW_NaN};
};


NJson::TJsonWriterConfig MakeJsonConfig();

void WriteValueToJson(NJson::TJsonWriter& writer, const NUdf::TUnboxedValuePod& value,
                      NMiniKQL::TType* type, TValueConvertPolicy convertPolicy = {});

NUdf::TUnboxedValue ReadJsonValue(NJson::TJsonValue& json, NMiniKQL::TType* type, const NMiniKQL::THolderFactory& holderFactory);
} // NJsonCodec
} // NCommon
} // NYql