From 6edae865168dc86a5a3b39558158d22a4ff3bd99 Mon Sep 17 00:00:00 2001
From: Leonid Logvinov <logvinov.leon@gmail.com>
Date: Fri, 10 Nov 2017 12:12:30 -0500
Subject: Make store configurable by blockParam

---
 src/stores/balance_proxy_allowance_lazy_store.ts | 15 ++++++++++++---
 src/utils/exchange_transfer_simulator.ts         |  4 ++--
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/src/stores/balance_proxy_allowance_lazy_store.ts b/src/stores/balance_proxy_allowance_lazy_store.ts
index 7f392cb82..2580fd449 100644
--- a/src/stores/balance_proxy_allowance_lazy_store.ts
+++ b/src/stores/balance_proxy_allowance_lazy_store.ts
@@ -1,4 +1,5 @@
 import * as _ from 'lodash';
+import * as Web3 from 'web3';
 import {BigNumber} from 'bignumber.js';
 import {TokenWrapper} from '../contract_wrappers/token_wrapper';
 
@@ -7,6 +8,7 @@ import {TokenWrapper} from '../contract_wrappers/token_wrapper';
  */
 export class BalanceAndProxyAllowanceLazyStore {
     private token: TokenWrapper;
+    private defaultBlock: Web3.BlockParam;
     private balance: {
         [tokenAddress: string]: {
             [userAddress: string]: BigNumber,
@@ -17,14 +19,18 @@ export class BalanceAndProxyAllowanceLazyStore {
             [userAddress: string]: BigNumber,
         },
     };
-    constructor(token: TokenWrapper) {
+    constructor(token: TokenWrapper, defaultBlock: Web3.BlockParam) {
         this.token = token;
+        this.defaultBlock = defaultBlock;
         this.balance = {};
         this.proxyAllowance = {};
     }
     public async getBalanceAsync(tokenAddress: string, userAddress: string): Promise<BigNumber> {
         if (_.isUndefined(this.balance[tokenAddress]) || _.isUndefined(this.balance[tokenAddress][userAddress])) {
-            const balance = await this.token.getBalanceAsync(tokenAddress, userAddress);
+            const methodOpts = {
+                defaultBlock: this.defaultBlock,
+            };
+            const balance = await this.token.getBalanceAsync(tokenAddress, userAddress, methodOpts);
             this.setBalance(tokenAddress, userAddress, balance);
         }
         const cachedBalance = this.balance[tokenAddress][userAddress];
@@ -39,7 +45,10 @@ export class BalanceAndProxyAllowanceLazyStore {
     public async getProxyAllowanceAsync(tokenAddress: string, userAddress: string): Promise<BigNumber> {
         if (_.isUndefined(this.proxyAllowance[tokenAddress]) ||
             _.isUndefined(this.proxyAllowance[tokenAddress][userAddress])) {
-            const proxyAllowance = await this.token.getProxyAllowanceAsync(tokenAddress, userAddress);
+            const methodOpts = {
+                defaultBlock: this.defaultBlock,
+            };
+            const proxyAllowance = await this.token.getProxyAllowanceAsync(tokenAddress, userAddress, methodOpts);
             this.setProxyAllowance(tokenAddress, userAddress, proxyAllowance);
         }
         const cachedProxyAllowance = this.proxyAllowance[tokenAddress][userAddress];
diff --git a/src/utils/exchange_transfer_simulator.ts b/src/utils/exchange_transfer_simulator.ts
index ecdec0be0..56bd48f17 100644
--- a/src/utils/exchange_transfer_simulator.ts
+++ b/src/utils/exchange_transfer_simulator.ts
@@ -1,6 +1,6 @@
 import * as _ from 'lodash';
 import BigNumber from 'bignumber.js';
-import {ExchangeContractErrs, TradeSide, TransferType} from '../types';
+import {ExchangeContractErrs, TradeSide, TransferType, BlockParamLiteral} from '../types';
 import {TokenWrapper} from '../contract_wrappers/token_wrapper';
 import {BalanceAndProxyAllowanceLazyStore} from '../stores/balance_proxy_allowance_lazy_store';
 
@@ -36,7 +36,7 @@ export class ExchangeTransferSimulator {
     private store: BalanceAndProxyAllowanceLazyStore;
     private UNLIMITED_ALLOWANCE_IN_BASE_UNITS: BigNumber;
     constructor(token: TokenWrapper) {
-        this.store = new BalanceAndProxyAllowanceLazyStore(token);
+        this.store = new BalanceAndProxyAllowanceLazyStore(token, BlockParamLiteral.Latest);
         this.UNLIMITED_ALLOWANCE_IN_BASE_UNITS = token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS;
     }
     /**
-- 
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