diff options
Diffstat (limited to 'packages/order-utils/src/order_state_utils.ts')
| -rw-r--r-- | packages/order-utils/src/order_state_utils.ts | 72 |
1 files changed, 35 insertions, 37 deletions
diff --git a/packages/order-utils/src/order_state_utils.ts b/packages/order-utils/src/order_state_utils.ts index da33ea010..ca18097c9 100644 --- a/packages/order-utils/src/order_state_utils.ts +++ b/packages/order-utils/src/order_state_utils.ts @@ -20,11 +20,8 @@ export class OrderStateUtils { private _balanceAndProxyAllowanceFetcher: AbstractBalanceAndProxyAllowanceFetcher; private _orderFilledCancelledFetcher: AbstractOrderFilledCancelledFetcher; private static _validateIfOrderIsValid(signedOrder: SignedOrder, orderRelevantState: OrderRelevantState): void { - const unavailableTakerTokenAmount = orderRelevantState.cancelledTakerTokenAmount.add( - orderRelevantState.filledTakerTokenAmount, - ); - const availableTakerTokenAmount = signedOrder.takerAssetAmount.minus(unavailableTakerTokenAmount); - if (availableTakerTokenAmount.eq(0)) { + const availableTakerAssetAmount = signedOrder.takerAssetAmount.minus(orderRelevantState.filledTakerAssetAmount); + if (availableTakerAssetAmount.eq(0)) { throw new Error(ExchangeContractErrs.OrderRemainingFillAmountZero); } @@ -42,12 +39,12 @@ export class OrderStateUtils { throw new Error(ExchangeContractErrs.InsufficientMakerFeeAllowance); } } - const minFillableTakerTokenAmountWithinNoRoundingErrorRange = signedOrder.takerAssetAmount + const minFillableTakerAssetAmountWithinNoRoundingErrorRange = signedOrder.takerAssetAmount .dividedBy(ACCEPTABLE_RELATIVE_ROUNDING_ERROR) .dividedBy(signedOrder.makerAssetAmount); if ( - orderRelevantState.remainingFillableTakerTokenAmount.lessThan( - minFillableTakerTokenAmountWithinNoRoundingErrorRange, + orderRelevantState.remainingFillableTakerAssetAmount.lessThan( + minFillableTakerAssetAmountWithinNoRoundingErrorRange, ) ) { throw new Error(ExchangeContractErrs.OrderFillRoundingError); @@ -82,13 +79,15 @@ export class OrderStateUtils { } public async getOrderRelevantStateAsync(signedOrder: SignedOrder): Promise<OrderRelevantState> { const zrxTokenAddress = this._orderFilledCancelledFetcher.getZRXTokenAddress(); + const makerProxyData = assetProxyUtils.decodeERC20ProxyData(signedOrder.makerAssetData); + const makerAssetAddress = makerProxyData.tokenAddress; const orderHash = orderHashUtils.getOrderHashHex(signedOrder); const makerBalance = await this._balanceAndProxyAllowanceFetcher.getBalanceAsync( - signedOrder.makerAssetData, + makerAssetAddress, signedOrder.makerAddress, ); const makerProxyAllowance = await this._balanceAndProxyAllowanceFetcher.getProxyAllowanceAsync( - signedOrder.makerAssetData, + makerAssetAddress, signedOrder.makerAddress, ); const makerFeeBalance = await this._balanceAndProxyAllowanceFetcher.getBalanceAsync( @@ -99,42 +98,41 @@ export class OrderStateUtils { zrxTokenAddress, signedOrder.makerAddress, ); - const filledTakerTokenAmount = await this._orderFilledCancelledFetcher.getFilledTakerAmountAsync(orderHash); - const cancelledTakerTokenAmount = await this._orderFilledCancelledFetcher.getCancelledTakerAmountAsync( - orderHash, - ); - const unavailableTakerTokenAmount = await this._orderFilledCancelledFetcher.getUnavailableTakerAmountAsync( - orderHash, - ); - const totalMakerTokenAmount = signedOrder.makerAssetAmount; - const totalTakerTokenAmount = signedOrder.takerAssetAmount; - const remainingTakerTokenAmount = totalTakerTokenAmount.minus(unavailableTakerTokenAmount); - const remainingMakerTokenAmount = remainingTakerTokenAmount - .times(totalMakerTokenAmount) - .dividedToIntegerBy(totalTakerTokenAmount); - const transferrableMakerTokenAmount = BigNumber.min([makerProxyAllowance, makerBalance]); - const transferrableFeeTokenAmount = BigNumber.min([makerFeeProxyAllowance, makerFeeBalance]); + const filledTakerAssetAmount = await this._orderFilledCancelledFetcher.getFilledTakerAmountAsync(orderHash); + const isOrderCancelled = await this._orderFilledCancelledFetcher.isOrderCancelledAsync(orderHash); + const totalMakerAssetAmount = signedOrder.makerAssetAmount; + const totalTakerAssetAmount = signedOrder.takerAssetAmount; + const remainingTakerAssetAmount = isOrderCancelled + ? new BigNumber(0) + : totalTakerAssetAmount.minus(filledTakerAssetAmount); + const remainingMakerAssetAmount = remainingTakerAssetAmount + .times(totalMakerAssetAmount) + .dividedToIntegerBy(totalTakerAssetAmount); + const transferrableMakerAssetAmount = BigNumber.min([makerProxyAllowance, makerBalance]); + const transferrableFeeAssetAmount = BigNumber.min([makerFeeProxyAllowance, makerFeeBalance]); const zrxAssetData = assetProxyUtils.encodeERC20ProxyData(zrxTokenAddress); - const isMakerTokenZRX = signedOrder.makerAssetData === zrxAssetData; + const isMakerAssetZRX = signedOrder.makerAssetData === zrxAssetData; const remainingFillableCalculator = new RemainingFillableCalculator( - signedOrder, - isMakerTokenZRX, - transferrableMakerTokenAmount, - transferrableFeeTokenAmount, - remainingMakerTokenAmount, + signedOrder.makerFee, + signedOrder.makerAssetAmount, + isMakerAssetZRX, + transferrableMakerAssetAmount, + transferrableFeeAssetAmount, + remainingMakerAssetAmount, ); - const remainingFillableMakerTokenAmount = remainingFillableCalculator.computeRemainingMakerFillable(); - const remainingFillableTakerTokenAmount = remainingFillableCalculator.computeRemainingTakerFillable(); + const remainingFillableMakerAssetAmount = remainingFillableCalculator.computeRemainingFillable(); + const remainingFillableTakerAssetAmount = remainingFillableMakerAssetAmount + .times(signedOrder.takerAssetAmount) + .dividedToIntegerBy(signedOrder.makerAssetAmount); const orderRelevantState = { makerBalance, makerProxyAllowance, makerFeeBalance, makerFeeProxyAllowance, - filledTakerTokenAmount, - cancelledTakerTokenAmount, - remainingFillableMakerTokenAmount, - remainingFillableTakerTokenAmount, + filledTakerAssetAmount, + remainingFillableMakerAssetAmount, + remainingFillableTakerAssetAmount, }; return orderRelevantState; } |