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-rw-r--r--src/utils/order_state_utils.ts119
1 files changed, 0 insertions, 119 deletions
diff --git a/src/utils/order_state_utils.ts b/src/utils/order_state_utils.ts
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index f82601cae..000000000
--- a/src/utils/order_state_utils.ts
+++ /dev/null
@@ -1,119 +0,0 @@
-import * as _ from 'lodash';
-import * as Web3 from 'web3';
-import BigNumber from 'bignumber.js';
-import {
- ExchangeContractErrs,
- SignedOrder,
- OrderRelevantState,
- MethodOpts,
- OrderState,
- OrderStateValid,
- OrderStateInvalid,
-} from '../types';
-import {ZeroEx} from '../0x';
-import {TokenWrapper} from '../contract_wrappers/token_wrapper';
-import {ExchangeWrapper} from '../contract_wrappers/exchange_wrapper';
-import {utils} from '../utils/utils';
-import {constants} from '../utils/constants';
-import {OrderFilledCancelledLazyStore} from '../stores/order_filled_cancelled_lazy_store';
-import {BalanceAndProxyAllowanceLazyStore} from '../stores/balance_proxy_allowance_lazy_store';
-
-export class OrderStateUtils {
- private balanceAndProxyAllowanceLazyStore: BalanceAndProxyAllowanceLazyStore;
- private orderFilledCancelledLazyStore: OrderFilledCancelledLazyStore;
- constructor(balanceAndProxyAllowanceLazyStore: BalanceAndProxyAllowanceLazyStore,
- orderFilledCancelledLazyStore: OrderFilledCancelledLazyStore) {
- this.balanceAndProxyAllowanceLazyStore = balanceAndProxyAllowanceLazyStore;
- this.orderFilledCancelledLazyStore = orderFilledCancelledLazyStore;
- }
- public async getOrderStateAsync(signedOrder: SignedOrder): Promise<OrderState> {
- const orderRelevantState = await this.getOrderRelevantStateAsync(signedOrder);
- const orderHash = ZeroEx.getOrderHashHex(signedOrder);
- try {
- this.validateIfOrderIsValid(signedOrder, orderRelevantState);
- const orderState: OrderStateValid = {
- isValid: true,
- orderHash,
- orderRelevantState,
- };
- return orderState;
- } catch (err) {
- const orderState: OrderStateInvalid = {
- isValid: false,
- orderHash,
- error: err.message,
- };
- return orderState;
- }
- }
- public async getOrderRelevantStateAsync(signedOrder: SignedOrder): Promise<OrderRelevantState> {
- // HACK: We access the private property here but otherwise the interface will be less nice.
- // If we pass it from the instantiator - there is no opportunity to get it there
- // because JS doesn't support async constructors.
- // Moreover - it's cached under the hood so it's equivalent to an async constructor.
- const exchange = (this.orderFilledCancelledLazyStore as any).exchange as ExchangeWrapper;
- const zrxTokenAddress = await exchange.getZRXTokenAddressAsync();
- const orderHash = ZeroEx.getOrderHashHex(signedOrder);
- const makerBalance = await this.balanceAndProxyAllowanceLazyStore.getBalanceAsync(
- signedOrder.makerTokenAddress, signedOrder.maker,
- );
- const makerProxyAllowance = await this.balanceAndProxyAllowanceLazyStore.getProxyAllowanceAsync(
- signedOrder.makerTokenAddress, signedOrder.maker,
- );
- const makerFeeBalance = await this.balanceAndProxyAllowanceLazyStore.getBalanceAsync(
- zrxTokenAddress, signedOrder.maker,
- );
- const makerFeeProxyAllowance = await this.balanceAndProxyAllowanceLazyStore.getProxyAllowanceAsync(
- zrxTokenAddress, signedOrder.maker,
- );
- const filledTakerTokenAmount = await this.orderFilledCancelledLazyStore.getFilledTakerAmountAsync(orderHash);
- const canceledTakerTokenAmount = await this.orderFilledCancelledLazyStore.getCancelledTakerAmountAsync(
- orderHash,
- );
- const unavailableTakerTokenAmount = await exchange.getUnavailableTakerAmountAsync(orderHash);
- const totalMakerTokenAmount = signedOrder.makerTokenAmount;
- const totalTakerTokenAmount = signedOrder.takerTokenAmount;
- const remainingTakerTokenAmount = totalTakerTokenAmount.minus(unavailableTakerTokenAmount);
- const remainingMakerTokenAmount = remainingTakerTokenAmount.times(totalMakerTokenAmount)
- .dividedToIntegerBy(totalTakerTokenAmount);
- const fillableMakerTokenAmount = BigNumber.min([makerProxyAllowance, makerBalance]);
- const remainingFillableMakerTokenAmount = BigNumber.min(fillableMakerTokenAmount, remainingMakerTokenAmount);
- // TODO: Handle edge case where maker token is ZRX with fee
- const orderRelevantState = {
- makerBalance,
- makerProxyAllowance,
- makerFeeBalance,
- makerFeeProxyAllowance,
- filledTakerTokenAmount,
- canceledTakerTokenAmount,
- remainingFillableMakerTokenAmount,
- };
- return orderRelevantState;
- }
- private validateIfOrderIsValid(signedOrder: SignedOrder, orderRelevantState: OrderRelevantState): void {
- const unavailableTakerTokenAmount = orderRelevantState.canceledTakerTokenAmount.add(
- orderRelevantState.filledTakerTokenAmount,
- );
- const availableTakerTokenAmount = signedOrder.takerTokenAmount.minus(unavailableTakerTokenAmount);
- if (availableTakerTokenAmount.eq(0)) {
- throw new Error(ExchangeContractErrs.OrderRemainingFillAmountZero);
- }
-
- if (orderRelevantState.makerBalance.eq(0)) {
- throw new Error(ExchangeContractErrs.InsufficientMakerBalance);
- }
- if (orderRelevantState.makerProxyAllowance.eq(0)) {
- throw new Error(ExchangeContractErrs.InsufficientMakerAllowance);
- }
- if (!signedOrder.makerFee.eq(0)) {
- if (orderRelevantState.makerFeeBalance.eq(0)) {
- throw new Error(ExchangeContractErrs.InsufficientMakerFeeBalance);
- }
- if (orderRelevantState.makerFeeProxyAllowance.eq(0)) {
- throw new Error(ExchangeContractErrs.InsufficientMakerFeeAllowance);
- }
- }
- // TODO Add linear function solver when maker token is ZRX #badass
- // Return the max amount that's fillable
- }
-}