import Big from "big.js";
import { PositionSide } from "../position/types";
interface GetTransactionFeeParams {
    isBaseToQuote: boolean;
    exchangedPositionNotional: Big;
    deltaAvailableQuote: Big;
    feeRatio: Big;
}
export declare function getTransactionFee({ isBaseToQuote, exchangedPositionNotional, deltaAvailableQuote, feeRatio, }: GetTransactionFeeParams): Big;
interface GetUnrealizedPnlParams {
    isLong: boolean;
    openNotionalAbs: Big;
    deltaAvailableQuote: Big;
}
export declare function getUnrealizedPnl({ isLong, openNotionalAbs, deltaAvailableQuote }: GetUnrealizedPnlParams): Big;
interface GetSwapRateParams {
    amountBase: Big;
    amountQuote: Big;
}
export declare function getSwapRate({ amountBase, amountQuote }: GetSwapRateParams): Big;
interface GetPriceImpactParams {
    price: Big;
    marketPrice: Big;
}
export declare function getPriceImpact({ price, marketPrice }: GetPriceImpactParams): Big;
interface GetBuyingPowerParams {
    imRatio: Big;
    freeCollateral: Big;
    side: PositionSide;
    existingPositionValue?: Big;
    nextFreeCollateral: Big;
}
export declare function getBuyingPower({ imRatio, freeCollateral, existingPositionValue, side, nextFreeCollateral, }: GetBuyingPowerParams): Big;
/**
 * NOTE:
 * nextAccountValue = accountValue + deltaAccountValue
 * deltaAccountValue = signedDeltaAvailableBase * indexTwapPrice + signedDeltaAvailableQuote
 */
interface GetNextAccountValueParams {
    indexTwapPrice: Big;
    accountValue: Big;
    signedDeltaAvailableBase: Big;
    signedDeltaAvailableQuote: Big;
}
export declare function getNextAccountValue({ indexTwapPrice, accountValue, signedDeltaAvailableBase, signedDeltaAvailableQuote, }: GetNextAccountValueParams): Big;
/**
 * NOTE: the formula did not consider the realized PNL, we should include it in the future
 * nextOpenOrderMarginReq = ((otherBaseDebtValue + absMinNextThisBaseBalance * thisBaseIndexPrice) + absMinNextQuoteBalance) * ratio
 */
interface GetNextOpenOrderMarginReqParams {
    sumOfOtherBaseDebtValue: Big;
    sumOfQuoteDebtValue: Big;
    thisBaseBalance: Big;
    signedDeltaAvailableBase: Big;
    signedDeltaAvailableQuote: Big;
    indexTwapPrice: Big;
    imRatio: Big;
}
export declare function getNextOpenOrderMarginReq({ sumOfOtherBaseDebtValue, sumOfQuoteDebtValue, thisBaseBalance, signedDeltaAvailableBase, signedDeltaAvailableQuote, indexTwapPrice, imRatio, }: GetNextOpenOrderMarginReqParams): Big;
/**
 * NOTE:
 * nextUnrealizedPNL = signedDeltaAvailableBase * indexPrice + signedDeltaAvailableQuote
 * nextTotalUnrealizedPNL = totalUnrealizedPNL + nextUnrealizedPNL
 * nextTotalCollateralValue
 * = nextAccountValue - nextTotalUnrealizedPNL
 * = nextAccountValue - (totalUnrealizedPNL + nextUnrealizedPNL)
 */
interface GetNextTotalCollateralValueParams {
    nextAccountValue: Big;
    signedDeltaAvailableBase: Big;
    signedDeltaAvailableQuote: Big;
    indexTwapPrice: Big;
    totalUnrealizedPNLFromAllMarkets: Big;
}
export declare function getNextTotalCollateralValue({ nextAccountValue, signedDeltaAvailableBase, signedDeltaAvailableQuote, indexTwapPrice, totalUnrealizedPNLFromAllMarkets, }: GetNextTotalCollateralValueParams): Big;
/**
 * NOTE: next free collateral
 * FIXME: this result might have negative value somehow
 * nextFreeCollateral = min(nextTotalCollateralValue, nextAccountValue) - nextOpenOrderMarginReq(Ratio)
 */
interface GetNextFreeCollateralParams {
    nextTotalCollateralValue: Big;
    nextAccountValue: Big;
    nextOpenOrderMarginReq: Big;
}
export declare function getNextFreeCollateral({ nextTotalCollateralValue, nextAccountValue, nextOpenOrderMarginReq, }: GetNextFreeCollateralParams): Big;
export {};