GatewayBalances.hpp

#pragma once
 
#include "data/BackendInterface.hpp"
#include "rpc/common/SpecBackend.hpp"
#include "rpc/common/Types.hpp"
 
#include <boost/json/array.hpp>
#include <boost/json/conversion.hpp>
#include <boost/json/value.hpp>
#include <rpcspec/handlers/gateway_balances/Types.hpp>
#include <xrpl/protocol/AccountID.h>
#include <xrpl/protocol/STAmount.h>
#include <xrpl/protocol/UintTypes.h>
 
#include <cstdint>
#include <map>
#include <memory>
#include <string>
#include <utility>
#include <vector>
 
namespace rpc {

class GatewayBalancesHandler
    : public rpc::HandlerFor<rpc::spec::handlers::gateway_balances::Input> {
    std::shared_ptr<BackendInterface> sharedPtrBackend_;
 
public:
    struct Output {
        std::string ledgerHash;
        uint32_t ledgerIndex;
        std::string accountID;
        bool overflow = false;
        std::map<xrpl::Currency, xrpl::STAmount> sums;
        std::map<xrpl::AccountID, std::vector<xrpl::STAmount>> hotBalances;
        std::map<xrpl::AccountID, std::vector<xrpl::STAmount>> assets;
        std::map<xrpl::AccountID, std::vector<xrpl::STAmount>> frozenBalances;
        std::map<xrpl::Currency, xrpl::STAmount> locked;
        // validated should be sent via framework
        bool validated = true;
    };
 
    using Result = HandlerReturnType<Output>;

    GatewayBalancesHandler(std::shared_ptr<BackendInterface> sharedPtrBackend)
        : sharedPtrBackend_(std::move(sharedPtrBackend))
    {
    }

    [[nodiscard]] Result
    process(Input const& input, Context const& ctx) const;
 
private:
    friend void
    tag_invoke(boost::json::value_from_tag, boost::json::value& jv, Output const& output);
};
 
}  // namespace rpc