AccountOffers.hpp

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

class AccountOffersHandler : public rpc::HandlerFor<rpc::spec::handlers::account_offers::Input> {
    std::shared_ptr<BackendInterface> sharedPtrBackend_;
 
public:
    static constexpr auto kLimitMin = rpc::spec::handlers::account_offers::kLimitMin;
    static constexpr auto kLimitMax = rpc::spec::handlers::account_offers::kLimitMax;
    static constexpr auto kLimitDefault = rpc::spec::handlers::account_offers::kLimitDefault;

    struct Offer {
        uint32_t flags{};
        uint32_t seq{};
        xrpl::STAmount takerGets;
        xrpl::STAmount takerPays;
        std::string quality;
        std::optional<uint32_t> expiration;
    };

    struct Output {
        std::string account;
        std::string ledgerHash;
        uint32_t ledgerIndex{};
        std::vector<Offer> offers;
        std::optional<std::string> marker;
        // validated should be sent via framework
        bool validated = true;
    };
 
    using Result = HandlerReturnType<Output>;

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

    [[nodiscard]] Result
    process(Input const& input, Context const& ctx) const;
 
private:
    static void
    addOffer(std::vector<Offer>& offers, xrpl::SLE const& offerSle);

    friend void
    tag_invoke(boost::json::value_from_tag, boost::json::value& jv, Output const& output);

    friend void
    tag_invoke(boost::json::value_from_tag, boost::json::value& jv, Offer const& offer);
};
}  // namespace rpc