tx/transactors/account/SignerListSet.h

#pragma once
 
#include <xrpl/beast/utility/Journal.h>
#include <xrpl/core/ServiceRegistry.h>
#include <xrpl/ledger/ApplyView.h>
#include <xrpl/ledger/ReadView.h>
#include <xrpl/protocol/AccountID.h>
#include <xrpl/protocol/Rules.h>
#include <xrpl/protocol/STTx.h>
#include <xrpl/protocol/TER.h>
#include <xrpl/protocol/XRPAmount.h>
#include <xrpl/tx/ApplyContext.h>
#include <xrpl/tx/SignerEntries.h>
#include <xrpl/tx/Transactor.h>
 
#include <cstdint>
#include <tuple>
#include <vector>
 
namespace xrpl {

class SignerListSet : public Transactor
{
private:
    // Values determined during preCompute for use later.
    enum class Operation { Unknown, Set, Destroy };
    Operation do_{Operation::Unknown};
    std::uint32_t quorum_{0};
    std::vector<SignerEntries::SignerEntry> signers_;
 
public:
    static constexpr auto kConsequencesFactory = ConsequencesFactoryType::Blocker;
 
    explicit SignerListSet(ApplyContext& ctx) : Transactor(ctx)
    {
    }
 
    static std::uint32_t
    getFlagsMask(PreflightContext const& ctx);
 
    static NotTEC
    preflight(PreflightContext const& ctx);
 
    TER
    doApply() override;
    void
    preCompute() override;
 
    void
    visitInvariantEntry(bool isDelete, SLE::const_ref before, SLE::const_ref after) override;
 
    [[nodiscard]] bool
    finalizeInvariants(
        STTx const& tx,
        TER result,
        XRPAmount fee,
        ReadView const& view,
        beast::Journal const& j) override;
 
    // Interface used by AccountDelete
    static TER
    removeFromLedger(
        ServiceRegistry& registry,
        ApplyView& view,
        AccountID const& account,
        beast::Journal j);
 
private:
    static std::tuple<NotTEC, std::uint32_t, std::vector<SignerEntries::SignerEntry>, Operation>
    determineOperation(STTx const& tx, ApplyFlags flags, beast::Journal j);
 
    static NotTEC
    validateQuorumAndSignerEntries(
        std::uint32_t quorum,
        std::vector<SignerEntries::SignerEntry> const& signers,
        AccountID const& account,
        beast::Journal j,
        Rules const&);
 
    TER
    replaceSignerList();
    TER
    destroySignerList();
 
    void
    writeSignersToSLE(SLE::pointer const& ledgerEntry, std::uint32_t flags) const;
};
 
}  // namespace xrpl