DatatypesTraits.h

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/*
 * MIT License
 *
 * Copyright (c) 2025 nfx
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

 
#pragma once
 
#include "nfx/serialization/json/Serializer.h"
 
//=====================================================================
// Int128 support - enabled only if header is available
//=====================================================================
 
#if __has_include( "nfx/datatypes/Int128.h" )
 
#    include "nfx/datatypes/Int128.h"
 
// Register Int128 as nfx extension type
namespace nfx::serialization::json::detail
{
    template <>
    struct is_nfx_extension_type<nfx::datatypes::Int128> : std::true_type
    {
    };
} // namespace nfx::serialization::json::detail
 
namespace nfx::serialization::json
{
    template <>
    struct SerializationTraits<nfx::datatypes::Int128>
    {
        static void serialize( const nfx::datatypes::Int128& obj, nfx::json::Builder& builder )
        {
            std::string value = obj.toString();
            builder.write( value );
        }

        static void fromDocument( const Document& doc, nfx::datatypes::Int128& obj )
        {
            if( doc.is<std::string>( "" ) )
            {
                auto val = doc.get<std::string>( "" );
                if( val.has_value() && !val.value().empty() )
                {
                    if( !nfx::datatypes::Int128::fromString( val.value(), obj ) )
                    {
                        throw std::runtime_error{ "Invalid Int128 format: unable to parse string representation" };
                    }
                }
            }
        }
    };
} // namespace nfx::serialization::json
 
#endif // __has_include("nfx/datatypes/Int128.h")
 
//=====================================================================
// Decimal support - enabled only if header is available
//=====================================================================
 
#if __has_include( "nfx/datatypes/Decimal.h" )
 
#    include "nfx/datatypes/Decimal.h"
 
// Register Decimal as nfx extension type
namespace nfx::serialization::json::detail
{
    template <>
    struct is_nfx_extension_type<nfx::datatypes::Decimal> : std::true_type
    {
    };
} // namespace nfx::serialization::json::detail
 
namespace nfx::serialization::json
{
    template <>
    struct SerializationTraits<nfx::datatypes::Decimal>
    {
        static void serialize( const nfx::datatypes::Decimal& obj, nfx::json::Builder& builder )
        {
            std::string value = obj.toString();
            builder.write( value );
        }

        static void fromDocument( const Document& doc, nfx::datatypes::Decimal& obj )
        {
            if( doc.is<std::string>( "" ) )
            {
                auto val = doc.get<std::string>( "" );
                if( val.has_value() && !val.value().empty() )
                {
                    if( !nfx::datatypes::Decimal::fromString( val.value(), obj ) )
                    {
                        throw std::runtime_error{ "Invalid Decimal format: unable to parse string representation" };
                    }
                }
            }
        }
    };
} // namespace nfx::serialization::json
 
#endif // __has_include("nfx/datatypes/Decimal.h")