BookTip.h

#pragma once
 
#include <xrpl/basics/base_uint.h>
#include <xrpl/beast/utility/Journal.h>
#include <xrpl/ledger/ApplyView.h>
#include <xrpl/protocol/Book.h>
#include <xrpl/protocol/Quality.h>
#include <xrpl/protocol/STLedgerEntry.h>
 
namespace xrpl {
 
class Logs;

class BookTip
{
private:
    ApplyView& view_;
    bool valid_{false};
    UInt256 book_;
    UInt256 end_;
    UInt256 dir_;
    UInt256 index_;
    SLE::pointer entry_;
    Quality quality_{};
 
public:
    BookTip(ApplyView& view, Book const& book);
 
    [[nodiscard]] UInt256 const&
    dir() const noexcept
    {
        return dir_;
    }
 
    [[nodiscard]] UInt256 const&
    index() const noexcept
    {
        return index_;
    }
 
    [[nodiscard]] Quality const&
    quality() const noexcept
    {
        return quality_;
    }
 
    [[nodiscard]] SLE::pointer const&
    entry() const noexcept
    {
        return entry_;
    }

    bool
    step(beast::Journal j);
};
 
}  // namespace xrpl