1 files changed, 53 insertions, 21 deletions

diff --git a/packages/instant/src/components/buy_button.tsx b/packages/instant/src/components/buy_button.tsx
index a70269dde..877ab275c 100644
--- a/packages/instant/src/components/buy_button.tsx
+++ b/packages/instant/src/components/buy_button.tsx
@@ -1,20 +1,29 @@
 import { AssetBuyer, AssetBuyerError, BuyQuote } from '@0x/asset-buyer';
+import { BigNumber } from '@0x/utils';
+import { Web3Wrapper } from '@0x/web3-wrapper';
 import * as _ from 'lodash';
 import * as React from 'react';
+import { oc } from 'ts-optchain';
 
 import { WEB_3_WRAPPER_TRANSACTION_FAILED_ERROR_MSG_PREFIX } from '../constants';
 import { ColorOption } from '../style/theme';
+import { AffiliateInfo, ZeroExInstantError } from '../types';
+import { gasPriceEstimator } from '../util/gas_price_estimator';
 import { util } from '../util/util';
-import { web3Wrapper } from '../util/web3_wrapper';
 
-import { Button, Text } from './ui';
+import { Button } from './ui/button';
 
 export interface BuyButtonProps {
+    accountAddress?: string;
+    accountEthBalanceInWei?: BigNumber;
     buyQuote?: BuyQuote;
-    assetBuyer?: AssetBuyer;
-    onAwaitingSignature: (buyQuote: BuyQuote) => void;
-    onSignatureDenied: (buyQuote: BuyQuote, preventedError: Error) => void;
-    onBuyProcessing: (buyQuote: BuyQuote, txHash: string) => void;
+    assetBuyer: AssetBuyer;
+    web3Wrapper: Web3Wrapper;
+    affiliateInfo?: AffiliateInfo;
+    onValidationPending: (buyQuote: BuyQuote) => void;
+    onValidationFail: (buyQuote: BuyQuote, errorMessage: AssetBuyerError | ZeroExInstantError) => void;
+    onSignatureDenied: (buyQuote: BuyQuote) => void;
+    onBuyProcessing: (buyQuote: BuyQuote, txHash: string, startTimeUnix: number, expectedEndTimeUnix: number) => void;
     onBuySuccess: (buyQuote: BuyQuote, txHash: string) => void;
     onBuyFailure: (buyQuote: BuyQuote, txHash: string) => void;
 }
@@ -26,35 +35,58 @@ export class BuyButton extends React.Component<BuyButtonProps> {
         onBuyFailure: util.boundNoop,
     };
     public render(): React.ReactNode {
-        const shouldDisableButton = _.isUndefined(this.props.buyQuote) || _.isUndefined(this.props.assetBuyer);
+        const { buyQuote, accountAddress } = this.props;
+        const shouldDisableButton = _.isUndefined(buyQuote) || _.isUndefined(accountAddress);
         return (
-            <Button width="100%" onClick={this._handleClick} isDisabled={shouldDisableButton}>
-                <Text fontColor={ColorOption.white} fontWeight={600} fontSize="20px">
-                    Buy
-                </Text>
+            <Button
+                width="100%"
+                onClick={this._handleClick}
+                isDisabled={shouldDisableButton}
+                fontColor={ColorOption.white}
+                fontSize="20px"
+            >
+                Buy
             </Button>
         );
     }
     private readonly _handleClick = async () => {
         // The button is disabled when there is no buy quote anyway.
-        const { buyQuote, assetBuyer } = this.props;
-        if (_.isUndefined(buyQuote) || _.isUndefined(assetBuyer)) {
+        const { buyQuote, assetBuyer, affiliateInfo, accountAddress, accountEthBalanceInWei, web3Wrapper } = this.props;
+        if (_.isUndefined(buyQuote) || _.isUndefined(accountAddress)) {
+            return;
+        }
+        this.props.onValidationPending(buyQuote);
+        const ethNeededForBuy = buyQuote.worstCaseQuoteInfo.totalEthAmount;
+        // if we don't have a balance for the user, let the transaction through, it will be handled by the wallet
+        const hasSufficientEth = _.isUndefined(accountEthBalanceInWei) || accountEthBalanceInWei.gte(ethNeededForBuy);
+        if (!hasSufficientEth) {
+            this.props.onValidationFail(buyQuote, ZeroExInstantError.InsufficientETH);
             return;
         }
-
         let txHash: string | undefined;
-        this.props.onAwaitingSignature(buyQuote);
+        const gasInfo = await gasPriceEstimator.getGasInfoAsync();
+        const feeRecipient = oc(affiliateInfo).feeRecipient();
         try {
-            txHash = await assetBuyer.executeBuyQuoteAsync(buyQuote);
+            txHash = await assetBuyer.executeBuyQuoteAsync(buyQuote, {
+                feeRecipient,
+                takerAddress: accountAddress,
+                gasPrice: gasInfo.gasPriceInWei,
+            });
         } catch (e) {
-            if (e instanceof Error && e.message === AssetBuyerError.SignatureRequestDenied) {
-                this.props.onSignatureDenied(buyQuote, e);
-                return;
+            if (e instanceof Error) {
+                if (e.message === AssetBuyerError.SignatureRequestDenied) {
+                    this.props.onSignatureDenied(buyQuote);
+                    return;
+                } else if (e.message === AssetBuyerError.TransactionValueTooLow) {
+                    this.props.onValidationFail(buyQuote, AssetBuyerError.TransactionValueTooLow);
+                    return;
+                }
             }
             throw e;
         }
-
-        this.props.onBuyProcessing(buyQuote, txHash);
+        const startTimeUnix = new Date().getTime();
+        const expectedEndTimeUnix = startTimeUnix + gasInfo.estimatedTimeMs;
+        this.props.onBuyProcessing(buyQuote, txHash, startTimeUnix, expectedEndTimeUnix);
         try {
             await web3Wrapper.awaitTransactionSuccessAsync(txHash);
         } catch (e) {