AccountLines.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_lines/Types.hpp>
#include <xrpl/protocol/AccountID.h>
#include <xrpl/protocol/STLedgerEntry.h>
 
#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>
 
namespace rpc {

class AccountLinesHandler : public rpc::HandlerFor<rpc::spec::handlers::account_lines::Input> {
    // dependencies
    std::shared_ptr<BackendInterface> const sharedPtrBackend_;
 
public:
    static constexpr auto kLimitMin = rpc::spec::handlers::account_lines::kLimitMin;
    static constexpr auto kLimitMax = rpc::spec::handlers::account_lines::kLimitMax;
    static constexpr auto kLimitDefault = rpc::spec::handlers::account_lines::kLimitDefault;

    struct LineResponse {
        std::string account;
        std::string balance;
        std::string currency;
        std::string limit;
        std::string limitPeer;
        uint32_t qualityIn{};
        uint32_t qualityOut{};
        std::optional<bool> noRipple;
        std::optional<bool> noRipplePeer;
        std::optional<bool> authorized;
        std::optional<bool> peerAuthorized;
        std::optional<bool> freeze;
        std::optional<bool> freezePeer;
        std::optional<bool> deepFreeze;
        std::optional<bool> deepFreezePeer;
    };

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

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

    [[nodiscard]] Result
    process(Input const& input, Context const& ctx) const;
 
private:
    static void
    addLine(
        std::vector<LineResponse>& lines,
        xrpl::SLE const& lineSle,
        xrpl::AccountID const& account,
        std::optional<xrpl::AccountID> const& peerAccount
    );
 
private:
    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, LineResponse const& line);
};
 
}  // namespace rpc