AMMUtils.h

//------------------------------------------------------------------------------
/*
    This file is part of rippled: https://github.com/ripple/rippled
    Copyright (c) 2023 Ripple Labs Inc.
 
    Permission to use, copy, modify, and/or distribute this software for any
    purpose  with  or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.
 
    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
 
#ifndef RIPPLE_APP_MISC_AMMUTILS_H_INCLUDED
#define RIPPLE_APP_MISC_AMMUTILS_H_INCLUDED
 
#include <xrpl/basics/Expected.h>
#include <xrpl/beast/utility/Journal.h>
#include <xrpl/ledger/View.h>
#include <xrpl/protocol/STAmount.h>
#include <xrpl/protocol/STLedgerEntry.h>
#include <xrpl/protocol/TER.h>
 
namespace ripple {
 
class ReadView;
class ApplyView;
class Sandbox;
class NetClock;
 
std::pair<STAmount, STAmount>
ammPoolHolds(
    ReadView const& view,
    AccountID const& ammAccountID,
    Issue const& issue1,
    Issue const& issue2,
    FreezeHandling freezeHandling,
    beast::Journal const j);
 
Expected<std::tuple<STAmount, STAmount, STAmount>, TER>
ammHolds(
    ReadView const& view,
    SLE const& ammSle,
    std::optional<Issue> const& optIssue1,
    std::optional<Issue> const& optIssue2,
    FreezeHandling freezeHandling,
    beast::Journal const j);
 
STAmount
ammLPHolds(
    ReadView const& view,
    Currency const& cur1,
    Currency const& cur2,
    AccountID const& ammAccount,
    AccountID const& lpAccount,
    beast::Journal const j);
 
STAmount
ammLPHolds(
    ReadView const& view,
    SLE const& ammSle,
    AccountID const& lpAccount,
    beast::Journal const j);
 
std::uint16_t
getTradingFee(
    ReadView const& view,
    SLE const& ammSle,
    AccountID const& account);
 
STAmount
ammAccountHolds(
    ReadView const& view,
    AccountID const& ammAccountID,
    Issue const& issue);
 
TER
deleteAMMAccount(
    Sandbox& view,
    Issue const& asset,
    Issue const& asset2,
    beast::Journal j);
 
void
initializeFeeAuctionVote(
    ApplyView& view,
    std::shared_ptr<SLE>& ammSle,
    AccountID const& account,
    Issue const& lptIssue,
    std::uint16_t tfee);
 
Expected<bool, TER>
isOnlyLiquidityProvider(
    ReadView const& view,
    Issue const& ammIssue,
    AccountID const& lpAccount);
 
Expected<bool, TER>
verifyAndAdjustLPTokenBalance(
    Sandbox& sb,
    STAmount const& lpTokens,
    std::shared_ptr<SLE>& ammSle,
    AccountID const& account);
 
}  // namespace ripple
 
#endif  // RIPPLE_APP_MISC_AMMUTILS_H_INCLUDED