@drift-labs/sdk-browser/lib/browser/math/orders.d.ts

SDK for Drift Protocol

/// <reference types="bn.js" />
import { User } from '../user';
import { PerpMarketAccount, AMM, Order, PositionDirection, ProtectedMakerParams, MarketTypeStr, StateAccount } from '../types';
import { BN } from '@coral-xyz/anchor';
import { MMOraclePriceData, OraclePriceData } from '../oracles/types';
export declare function isOrderRiskIncreasing(user: User, order: Order): boolean;
export declare function isOrderRiskIncreasingInSameDirection(user: User, order: Order): boolean;
export declare function isOrderReduceOnly(user: User, order: Order): boolean;
export declare function standardizeBaseAssetAmount(baseAssetAmount: BN, stepSize: BN): BN;
export declare function standardizePrice(price: BN, tickSize: BN, direction: PositionDirection): BN;
export declare function getLimitPrice<T extends MarketTypeStr>(order: Order, oraclePriceData: T extends 'spot' ? OraclePriceData : MMOraclePriceData, slot: number, fallbackPrice?: BN, protectedMakerParams?: ProtectedMakerParams): BN | undefined;
export declare function applyProtectedMakerParams(limitPrice: BN, direction: PositionDirection, protectedMakerParams: ProtectedMakerParams): BN;
export declare function hasLimitPrice(order: Order, slot: number): boolean;
export declare function hasAuctionPrice(order: Order, slot: number): boolean;
export declare function isFillableByVAMM(order: Order, market: PerpMarketAccount, mmOraclePriceData: MMOraclePriceData, slot: number, ts: number, state: StateAccount): boolean;
export declare function isLowRiskForAmm(order: Order, mmOraclePriceData: MMOraclePriceData, isLiquidation?: boolean): boolean;
export declare function calculateBaseAssetAmountForAmmToFulfill(order: Order, market: PerpMarketAccount, mmOraclePriceData: MMOraclePriceData, slot: number): BN;
export declare function calculateBaseAssetAmountToFillUpToLimitPrice(order: Order, amm: AMM, limitPrice: BN, mmOraclePriceData: MMOraclePriceData): BN;
export declare function isOrderExpired(order: Order, ts: number, enforceBuffer?: boolean, bufferSeconds?: number): boolean;
export declare function isMarketOrder(order: Order): boolean;
export declare function isLimitOrder(order: Order): boolean;
export declare function mustBeTriggered(order: Order): boolean;
export declare function isTriggered(order: Order): boolean;
export declare function isRestingLimitOrder(order: Order, slot: number): boolean;
export declare function isTakingOrder(order: Order, slot: number): boolean;
export declare function isSignedMsgOrder(order: Order): boolean;
export declare function hasBuilder(order: Order): boolean;
export declare function calculateOrderBaseAssetAmount(order: Order, existingBaseAssetAmount: BN): BN;
/**
 * Invert the size-premium liability weight: given a target margin ratio (liability weight),
 * return the max `size` (AMM_RESERVE_PRECISION units) that still yields <= target.
 *
 * Returns:
 * - BN size (>=0) if bounded
 * - null if impossible (target < liabilityWeight) OR imfFactor == 0 (unbounded)
 */
export declare function maxSizeForTargetLiabilityWeightBN(target: BN, imfFactor: BN, liabilityWeight: BN, market: PerpMarketAccount): BN | null;