AMMInfo.hpp

#pragma once
 
#include "data/AmendmentCenterInterface.hpp"
#include "data/BackendInterface.hpp"
#include "rpc/common/Specs.hpp"
 
#include <boost/json/array.hpp>
#include <boost/json/conversion.hpp>
#include <boost/json/value.hpp>
#include <xrpl/protocol/AccountID.h>
#include <xrpl/protocol/Issue.h>
 
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
 
namespace rpc {

class AMMInfoHandler {
    std::shared_ptr<BackendInterface> sharedPtrBackend_;
    std::shared_ptr<data::AmendmentCenterInterface const> amendmentCenter_;
 
public:
    struct Output {
        // todo: use better type than json types
        boost::json::value amount1;
        boost::json::value amount2;
        boost::json::value lpToken;
        boost::json::array voteSlots;
        boost::json::value auctionSlot;
        std::uint16_t tradingFee = 0;
        std::string ammAccount;
        std::optional<bool> asset1Frozen;
        std::optional<bool> asset2Frozen;
 
        std::string ledgerHash;
        uint32_t ledgerIndex{};
        bool validated = true;
    };

    struct Input {
        std::optional<ripple::AccountID> accountID;
        std::optional<ripple::AccountID> ammAccount;
        ripple::Issue issue1 = ripple::noIssue();
        ripple::Issue issue2 = ripple::noIssue();
        std::optional<std::string> ledgerHash;
        std::optional<uint32_t> ledgerIndex;
    };
 
    using Result = HandlerReturnType<Output>;

    AMMInfoHandler(
        std::shared_ptr<BackendInterface> sharedPtrBackend,
        std::shared_ptr<data::AmendmentCenterInterface const> const& amendmentCenter
    )
        : sharedPtrBackend_(std::move(sharedPtrBackend)), amendmentCenter_{amendmentCenter}
    {
    }

    static RpcSpecConstRef
    spec([[maybe_unused]] uint32_t apiVersion);

    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);

    friend Input
    tag_invoke(boost::json::value_to_tag<Input>, boost::json::value const& jv);
};
 
}  // namespace rpc