From 19f61906d3075391efb32c17c99c2cba1f7a3858 Mon Sep 17 00:00:00 2001
From: fragosti <francesco.agosti93@gmail.com>
Date: Wed, 10 Oct 2018 18:27:06 -0700
Subject: feat: Move over features from zrx-buyer

---
 packages/instant/src/components/buy_button.tsx     | 59 ++++++++++++++++++----
 .../instant/src/components/instant_heading.tsx     | 39 ++++++++++++--
 .../instant/src/components/zero_ex_instant.tsx     |  2 +
 .../src/components/zero_ex_instant_container.tsx   |  7 ++-
 4 files changed, 90 insertions(+), 17 deletions(-)

(limited to 'packages/instant/src/components')

diff --git a/packages/instant/src/components/buy_button.tsx b/packages/instant/src/components/buy_button.tsx
index 5a32b9575..097b8e547 100644
--- a/packages/instant/src/components/buy_button.tsx
+++ b/packages/instant/src/components/buy_button.tsx
@@ -1,19 +1,56 @@
+import { BuyQuote } from '@0xproject/asset-buyer';
+import * as _ from 'lodash';
 import * as React from 'react';
 
 import { ColorOption } from '../style/theme';
+import { assetBuyer } from '../util/asset_buyer';
+import { web3Wrapper } from '../util/web3_wrapper';
 
 import { Button, Container, Text } from './ui';
 
-export interface BuyButtonProps {}
+export interface BuyButtonProps {
+    buyQuote?: BuyQuote;
+    onClick: (buyQuote: BuyQuote) => void;
+    onBuySuccess: (buyQuote: BuyQuote) => void;
+    onBuyFailure: (buyQuote: BuyQuote) => void;
+    text: string;
+}
 
-export const BuyButton: React.StatelessComponent<BuyButtonProps> = props => (
-    <Container padding="20px" width="100%">
-        <Button width="100%">
-            <Text fontColor={ColorOption.white} fontWeight={600} fontSize="20px">
-                Buy
-            </Text>
-        </Button>
-    </Container>
-);
+const boundNoop = _.noop.bind(_);
 
-BuyButton.displayName = 'BuyButton';
+export class BuyButton extends React.Component<BuyButtonProps> {
+    public static defaultProps = {
+        onClick: boundNoop,
+        onBuySuccess: boundNoop,
+        onBuyFailure: boundNoop,
+    };
+    public render(): React.ReactNode {
+        const shouldDisableButton = _.isUndefined(this.props.buyQuote);
+        return (
+            <Container padding="20px" width="100%">
+                <Button width="100%" onClick={this._handleClick} isDisabled={shouldDisableButton}>
+                    <Text fontColor={ColorOption.white} fontWeight={600} fontSize="20px">
+                        {this.props.text}
+                    </Text>
+                </Button>
+            </Container>
+        );
+    }
+    private readonly _handleClick = async () => {
+        // The button is disabled when there is no buy quote anyway.
+        if (_.isUndefined(this.props.buyQuote)) {
+            return;
+        }
+        this.props.onClick(this.props.buyQuote);
+        try {
+            const txnHash = await assetBuyer.executeBuyQuoteAsync(this.props.buyQuote, {
+                // HACK: There is a calculation issue in asset-buyer. ETH is refunded anyway so just over-estimate.
+                ethAmount: this.props.buyQuote.worstCaseQuoteInfo.totalEthAmount.mul(2),
+            });
+            await web3Wrapper.awaitTransactionSuccessAsync(txnHash);
+        } catch {
+            this.props.onBuyFailure(this.props.buyQuote);
+        }
+        this.props.onBuySuccess(this.props.buyQuote);
+    };
+}
diff --git a/packages/instant/src/components/instant_heading.tsx b/packages/instant/src/components/instant_heading.tsx
index be0414b8d..cde3862c7 100644
--- a/packages/instant/src/components/instant_heading.tsx
+++ b/packages/instant/src/components/instant_heading.tsx
@@ -1,11 +1,42 @@
+import { BigNumber } from '@0xproject/utils';
+import { Web3Wrapper } from '@0xproject/web3-wrapper';
+import * as _ from 'lodash';
 import * as React from 'react';
 
+import { ethDecimals } from '../constants';
 import { SelectedAssetAmountInput } from '../containers/selected_asset_amount_input';
 import { ColorOption } from '../style/theme';
 
 import { Container, Flex, Text } from './ui';
 
-export interface InstantHeadingProps {}
+export interface InstantHeadingProps {
+    selectedAssetAmount?: BigNumber;
+    totalEthBaseAmount?: BigNumber;
+    ethUsdPrice?: BigNumber;
+}
+
+const displaytotalEthBaseAmount = ({ selectedAssetAmount, totalEthBaseAmount }: InstantHeadingProps): string => {
+    if (_.isUndefined(selectedAssetAmount)) {
+        return '0 ETH';
+    }
+    if (_.isUndefined(totalEthBaseAmount)) {
+        return '...loading';
+    }
+    const ethUnitAmount = Web3Wrapper.toUnitAmount(totalEthBaseAmount, ethDecimals);
+    const roundedAmount = ethUnitAmount.round(4);
+    return `${roundedAmount} ETH`;
+};
+
+const displayUsdAmount = ({ totalEthBaseAmount, selectedAssetAmount, ethUsdPrice }: InstantHeadingProps): string => {
+    if (_.isUndefined(selectedAssetAmount)) {
+        return '$0.00';
+    }
+    if (_.isUndefined(totalEthBaseAmount) || _.isUndefined(ethUsdPrice)) {
+        return '...loading';
+    }
+    const ethUnitAmount = Web3Wrapper.toUnitAmount(totalEthBaseAmount, ethDecimals);
+    return `$${ethUnitAmount.mul(ethUsdPrice).round(2)}`;
+};
 
 export const InstantHeading: React.StatelessComponent<InstantHeadingProps> = props => (
     <Container backgroundColor={ColorOption.primaryColor} padding="20px" width="100%" borderRadius="3px 3px 0px 0px">
@@ -26,18 +57,18 @@ export const InstantHeading: React.StatelessComponent<InstantHeadingProps> = pro
                 <SelectedAssetAmountInput fontSize="45px" />
                 <Container display="inline-block" marginLeft="10px">
                     <Text fontSize="45px" fontColor={ColorOption.white} textTransform="uppercase">
-                        rep
+                        zrx
                     </Text>
                 </Container>
             </Container>
             <Flex direction="column" justify="space-between">
                 <Container marginBottom="5px">
                     <Text fontSize="16px" fontColor={ColorOption.white} fontWeight={500}>
-                        0 ETH
+                        {displaytotalEthBaseAmount(props)}
                     </Text>
                 </Container>
                 <Text fontSize="16px" fontColor={ColorOption.white} opacity={0.7}>
-                    $0.00
+                    {displayUsdAmount(props)}
                 </Text>
             </Flex>
         </Flex>
diff --git a/packages/instant/src/components/zero_ex_instant.tsx b/packages/instant/src/components/zero_ex_instant.tsx
index 0e6230d1b..17ef737c9 100644
--- a/packages/instant/src/components/zero_ex_instant.tsx
+++ b/packages/instant/src/components/zero_ex_instant.tsx
@@ -1,6 +1,7 @@
 import * as React from 'react';
 import { Provider } from 'react-redux';
 
+import { asyncData } from '../redux/async_data';
 import { store } from '../redux/store';
 import { fonts } from '../style/fonts';
 import { theme, ThemeProvider } from '../style/theme';
@@ -8,6 +9,7 @@ import { theme, ThemeProvider } from '../style/theme';
 import { ZeroExInstantContainer } from './zero_ex_instant_container';
 
 fonts.include();
+asyncData.fetchAndDispatchToStore();
 
 export interface ZeroExInstantProps {}
 
diff --git a/packages/instant/src/components/zero_ex_instant_container.tsx b/packages/instant/src/components/zero_ex_instant_container.tsx
index 716227b51..4ff8b51bd 100644
--- a/packages/instant/src/components/zero_ex_instant_container.tsx
+++ b/packages/instant/src/components/zero_ex_instant_container.tsx
@@ -1,5 +1,8 @@
 import * as React from 'react';
 
+import { SelectedAssetBuyButton } from '../containers/selected_asset_buy_button';
+import { SelectedAssetInstantHeading } from '../containers/selected_asset_instant_heading';
+
 import { ColorOption } from '../style/theme';
 
 import { BuyButton } from './buy_button';
@@ -12,9 +15,9 @@ export interface ZeroExInstantContainerProps {}
 export const ZeroExInstantContainer: React.StatelessComponent<ZeroExInstantContainerProps> = props => (
     <Container hasBoxShadow={true} width="350px" backgroundColor={ColorOption.white} borderRadius="3px">
         <Flex direction="column" justify="flex-start">
-            <InstantHeading />
+            <SelectedAssetInstantHeading />
             <OrderDetails />
-            <BuyButton />
+            <SelectedAssetBuyButton />
         </Flex>
     </Container>
 );
-- 
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