From 4874d55d03918b47967024777194d88a5f2bc1fc Mon Sep 17 00:00:00 2001
From: Fabio Berger <me@fabioberger.com>
Date: Tue, 29 May 2018 16:58:30 -0700
Subject: Initial refactor of order-utils. Move many utils from contracts into
 this package.

---
 packages/order-utils/src/order_state_utils.ts | 32 ++++++++++++++-------------
 1 file changed, 17 insertions(+), 15 deletions(-)

(limited to 'packages/order-utils/src/order_state_utils.ts')

diff --git a/packages/order-utils/src/order_state_utils.ts b/packages/order-utils/src/order_state_utils.ts
index 36171f526..61050c9d6 100644
--- a/packages/order-utils/src/order_state_utils.ts
+++ b/packages/order-utils/src/order_state_utils.ts
@@ -11,7 +11,8 @@ import * as _ from 'lodash';
 
 import { AbstractBalanceAndProxyAllowanceFetcher } from './abstract/abstract_balance_and_proxy_allowance_fetcher';
 import { AbstractOrderFilledCancelledFetcher } from './abstract/abstract_order_filled_cancelled_fetcher';
-import { getOrderHashHex } from './order_hash';
+import { assetProxyUtils } from './asset_proxy_utils';
+import { orderHashUtils } from './order_hash';
 import { RemainingFillableCalculator } from './remaining_fillable_calculator';
 
 const ACCEPTABLE_RELATIVE_ROUNDING_ERROR = 0.0001;
@@ -23,7 +24,7 @@ export class OrderStateUtils {
         const unavailableTakerTokenAmount = orderRelevantState.cancelledTakerTokenAmount.add(
             orderRelevantState.filledTakerTokenAmount,
         );
-        const availableTakerTokenAmount = signedOrder.takerTokenAmount.minus(unavailableTakerTokenAmount);
+        const availableTakerTokenAmount = signedOrder.takerAssetAmount.minus(unavailableTakerTokenAmount);
         if (availableTakerTokenAmount.eq(0)) {
             throw new Error(ExchangeContractErrs.OrderRemainingFillAmountZero);
         }
@@ -42,9 +43,9 @@ export class OrderStateUtils {
                 throw new Error(ExchangeContractErrs.InsufficientMakerFeeAllowance);
             }
         }
-        const minFillableTakerTokenAmountWithinNoRoundingErrorRange = signedOrder.takerTokenAmount
+        const minFillableTakerTokenAmountWithinNoRoundingErrorRange = signedOrder.takerAssetAmount
             .dividedBy(ACCEPTABLE_RELATIVE_ROUNDING_ERROR)
-            .dividedBy(signedOrder.makerTokenAmount);
+            .dividedBy(signedOrder.makerAssetAmount);
         if (
             orderRelevantState.remainingFillableTakerTokenAmount.lessThan(
                 minFillableTakerTokenAmountWithinNoRoundingErrorRange,
@@ -62,7 +63,7 @@ export class OrderStateUtils {
     }
     public async getOrderStateAsync(signedOrder: SignedOrder): Promise<OrderState> {
         const orderRelevantState = await this.getOrderRelevantStateAsync(signedOrder);
-        const orderHash = getOrderHashHex(signedOrder);
+        const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
         try {
             OrderStateUtils._validateIfOrderIsValid(signedOrder, orderRelevantState);
             const orderState: OrderStateValid = {
@@ -82,22 +83,22 @@ export class OrderStateUtils {
     }
     public async getOrderRelevantStateAsync(signedOrder: SignedOrder): Promise<OrderRelevantState> {
         const zrxTokenAddress = this._orderFilledCancelledFetcher.getZRXTokenAddress();
-        const orderHash = getOrderHashHex(signedOrder);
+        const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
         const makerBalance = await this._balanceAndProxyAllowanceFetcher.getBalanceAsync(
-            signedOrder.makerTokenAddress,
-            signedOrder.maker,
+            signedOrder.makerAssetData,
+            signedOrder.makerAddress,
         );
         const makerProxyAllowance = await this._balanceAndProxyAllowanceFetcher.getProxyAllowanceAsync(
-            signedOrder.makerTokenAddress,
-            signedOrder.maker,
+            signedOrder.makerAssetData,
+            signedOrder.makerAddress,
         );
         const makerFeeBalance = await this._balanceAndProxyAllowanceFetcher.getBalanceAsync(
             zrxTokenAddress,
-            signedOrder.maker,
+            signedOrder.makerAddress,
         );
         const makerFeeProxyAllowance = await this._balanceAndProxyAllowanceFetcher.getProxyAllowanceAsync(
             zrxTokenAddress,
-            signedOrder.maker,
+            signedOrder.makerAddress,
         );
         const filledTakerTokenAmount = await this._orderFilledCancelledFetcher.getFilledTakerAmountAsync(orderHash);
         const cancelledTakerTokenAmount = await this._orderFilledCancelledFetcher.getCancelledTakerAmountAsync(
@@ -106,8 +107,8 @@ export class OrderStateUtils {
         const unavailableTakerTokenAmount = await this._orderFilledCancelledFetcher.getUnavailableTakerAmountAsync(
             orderHash,
         );
-        const totalMakerTokenAmount = signedOrder.makerTokenAmount;
-        const totalTakerTokenAmount = signedOrder.takerTokenAmount;
+        const totalMakerTokenAmount = signedOrder.makerAssetAmount;
+        const totalTakerTokenAmount = signedOrder.takerAssetAmount;
         const remainingTakerTokenAmount = totalTakerTokenAmount.minus(unavailableTakerTokenAmount);
         const remainingMakerTokenAmount = remainingTakerTokenAmount
             .times(totalMakerTokenAmount)
@@ -115,7 +116,8 @@ export class OrderStateUtils {
         const transferrableMakerTokenAmount = BigNumber.min([makerProxyAllowance, makerBalance]);
         const transferrableFeeTokenAmount = BigNumber.min([makerFeeProxyAllowance, makerFeeBalance]);
 
-        const isMakerTokenZRX = signedOrder.makerTokenAddress === zrxTokenAddress;
+        const zrxAssetData = assetProxyUtils.encodeERC20ProxyData(zrxTokenAddress);
+        const isMakerTokenZRX = signedOrder.makerAssetData === zrxAssetData;
         const remainingFillableCalculator = new RemainingFillableCalculator(
             signedOrder,
             isMakerTokenZRX,
-- 
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