Merge branch 'development' into feature/instant/fixed-orders-in-render-method

* development:
  Has Sufficient Funds/Balance -> Has Sufficient ETH
  When transaction too low, treat as validation error. also modify callback: errorMessage could be AssetBuyError as well
  onPendingValidation -> onValidationPending
  linting
  Simpler way of validaitng has enough eth
  questionmark syntax instead of '| undefined'
  Validate enough ETH when user clicks buy
  acccount for no address
  move funct into util
  move imports
  yarn.lock changes
  feat(instant): Show message if user doesn't have enough ETH
  ethDecimals -> ETH_DECIMALS

11 files changed, 79 insertions, 69 deletions

diff --git a/packages/instant/src/components/buy_button.tsx b/packages/instant/src/components/buy_button.tsx
index 9e06604e0..13c1dc88c 100644
--- a/packages/instant/src/components/buy_button.tsx
+++ b/packages/instant/src/components/buy_button.tsx
@@ -4,6 +4,9 @@ import * as React from 'react';
 
 import { WEB_3_WRAPPER_TRANSACTION_FAILED_ERROR_MSG_PREFIX } from '../constants';
 import { ColorOption } from '../style/theme';
+import { ZeroExInstantError } from '../types';
+import { getBestAddress } from '../util/address';
+import { balanceUtil } from '../util/balance';
 import { util } from '../util/util';
 import { web3Wrapper } from '../util/web3_wrapper';
 
@@ -12,7 +15,8 @@ import { Button, Text } from './ui';
 export interface BuyButtonProps {
     buyQuote?: BuyQuote;
     assetBuyer?: AssetBuyer;
-    onAwaitingSignature: (buyQuote: BuyQuote) => void;
+    onValidationPending: (buyQuote: BuyQuote) => void;
+    onValidationFail: (buyQuote: BuyQuote, errorMessage: AssetBuyerError | ZeroExInstantError) => void;
     onSignatureDenied: (buyQuote: BuyQuote) => void;
     onBuyProcessing: (buyQuote: BuyQuote, txHash: string) => void;
     onBuySuccess: (buyQuote: BuyQuote, txHash: string) => void;
@@ -42,14 +46,27 @@ export class BuyButton extends React.Component<BuyButtonProps> {
             return;
         }
 
+        this.props.onValidationPending(buyQuote);
+        const takerAddress = await getBestAddress();
+
+        const hasSufficentEth = await balanceUtil.hasSufficentEth(takerAddress, buyQuote, web3Wrapper);
+        if (!hasSufficentEth) {
+            this.props.onValidationFail(buyQuote, ZeroExInstantError.InsufficientETH);
+            return;
+        }
+
         let txHash: string | undefined;
-        this.props.onAwaitingSignature(buyQuote);
         try {
-            txHash = await assetBuyer.executeBuyQuoteAsync(buyQuote);
+            txHash = await assetBuyer.executeBuyQuoteAsync(buyQuote, { takerAddress });
         } catch (e) {
-            if (e instanceof Error && e.message === AssetBuyerError.SignatureRequestDenied) {
-                this.props.onSignatureDenied(buyQuote);
-                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;
         }
diff --git a/packages/instant/src/components/buy_order_state_buttons.tsx b/packages/instant/src/components/buy_order_state_buttons.tsx
index 758eabcb7..d01e9ff57 100644
--- a/packages/instant/src/components/buy_order_state_buttons.tsx
+++ b/packages/instant/src/components/buy_order_state_buttons.tsx
@@ -1,4 +1,4 @@
-import { AssetBuyer, BuyQuote } from '@0x/asset-buyer';
+import { AssetBuyer, AssetBuyerError, BuyQuote } from '@0x/asset-buyer';
 import * as React from 'react';
 
 import { BuyButton } from '../components/buy_button';
@@ -7,7 +7,7 @@ import { Flex } from '../components/ui/flex';
 
 import { PlacingOrderButton } from '../components/placing_order_button';
 import { ColorOption } from '../style/theme';
-import { OrderProcessState } from '../types';
+import { OrderProcessState, ZeroExInstantError } from '../types';
 
 import { Button } from './ui/button';
 import { Text } from './ui/text';
@@ -17,7 +17,8 @@ export interface BuyOrderStateButtonProps {
     buyOrderProcessingState: OrderProcessState;
     assetBuyer?: AssetBuyer;
     onViewTransaction: () => void;
-    onAwaitingSignature: (buyQuote: BuyQuote) => void;
+    onValidationPending: (buyQuote: BuyQuote) => void;
+    onValidationFail: (buyQuote: BuyQuote, errorMessage: AssetBuyerError | ZeroExInstantError) => void;
     onSignatureDenied: (buyQuote: BuyQuote) => void;
     onBuyProcessing: (buyQuote: BuyQuote, txHash: string) => void;
     onBuySuccess: (buyQuote: BuyQuote, txHash: string) => void;
@@ -45,7 +46,7 @@ export const BuyOrderStateButtons: React.StatelessComponent<BuyOrderStateButtonP
         props.buyOrderProcessingState === OrderProcessState.PROCESSING
     ) {
         return <SecondaryButton onClick={props.onViewTransaction}>View Transaction</SecondaryButton>;
-    } else if (props.buyOrderProcessingState === OrderProcessState.AWAITING_SIGNATURE) {
+    } else if (props.buyOrderProcessingState === OrderProcessState.VALIDATING) {
         return <PlacingOrderButton />;
     }
 
@@ -53,7 +54,8 @@ export const BuyOrderStateButtons: React.StatelessComponent<BuyOrderStateButtonP
         <BuyButton
             buyQuote={props.buyQuote}
             assetBuyer={props.assetBuyer}
-            onAwaitingSignature={props.onAwaitingSignature}
+            onValidationPending={props.onValidationPending}
+            onValidationFail={props.onValidationFail}
             onSignatureDenied={props.onSignatureDenied}
             onBuyProcessing={props.onBuyProcessing}
             onBuySuccess={props.onBuySuccess}
diff --git a/packages/instant/src/constants.ts b/packages/instant/src/constants.ts
index 48d0d4aa2..e4281d54a 100644
--- a/packages/instant/src/constants.ts
+++ b/packages/instant/src/constants.ts
@@ -1,5 +1,5 @@
 import { BigNumber } from '@0x/utils';
 export const BIG_NUMBER_ZERO = new BigNumber(0);
-export const ethDecimals = 18;
+export const ETH_DECIMALS = 18;
 export const DEFAULT_ZERO_EX_CONTAINER_SELECTOR = '#zeroExInstantContainer';
 export const WEB_3_WRAPPER_TRANSACTION_FAILED_ERROR_MSG_PREFIX = 'Transaction failed';
diff --git a/packages/instant/src/containers/selected_asset_buy_order_state_buttons.ts b/packages/instant/src/containers/selected_asset_buy_order_state_buttons.ts
index 10734df96..500d6b88a 100644
--- a/packages/instant/src/containers/selected_asset_buy_order_state_buttons.ts
+++ b/packages/instant/src/containers/selected_asset_buy_order_state_buttons.ts
@@ -1,17 +1,16 @@
-import { AssetBuyer, BuyQuote } from '@0x/asset-buyer';
+import { AssetBuyer, AssetBuyerError, BuyQuote } from '@0x/asset-buyer';
 import * as _ from 'lodash';
 import * as React from 'react';
 import { connect } from 'react-redux';
 import { Dispatch } from 'redux';
 
+import { BuyOrderStateButtons } from '../components/buy_order_state_buttons';
 import { Action, actions } from '../redux/actions';
 import { State } from '../redux/reducer';
-import { OrderProcessState, OrderState } from '../types';
+import { OrderProcessState, OrderState, ZeroExInstantError } from '../types';
 import { errorFlasher } from '../util/error_flasher';
 import { etherscanUtil } from '../util/etherscan';
 
-import { BuyOrderStateButtons } from '../components/buy_order_state_buttons';
-
 interface ConnectedState {
     buyQuote?: BuyQuote;
     buyOrderProcessingState: OrderProcessState;
@@ -20,12 +19,13 @@ interface ConnectedState {
 }
 
 interface ConnectedDispatch {
-    onAwaitingSignature: (buyQuote: BuyQuote) => void;
+    onValidationPending: (buyQuote: BuyQuote) => void;
     onSignatureDenied: (buyQuote: BuyQuote) => void;
     onBuyProcessing: (buyQuote: BuyQuote, txHash: string) => void;
     onBuySuccess: (buyQuote: BuyQuote, txHash: string) => void;
     onBuyFailure: (buyQuote: BuyQuote, txHash: string) => void;
     onRetry: () => void;
+    onValidationFail: (buyQuote: BuyQuote, errorMessage: AssetBuyerError | ZeroExInstantError) => void;
 }
 export interface SelectedAssetBuyOrderStateButtons {}
 const mapStateToProps = (state: State, _ownProps: SelectedAssetBuyOrderStateButtons): ConnectedState => ({
@@ -55,8 +55,8 @@ const mapDispatchToProps = (
     dispatch: Dispatch<Action>,
     ownProps: SelectedAssetBuyOrderStateButtons,
 ): ConnectedDispatch => ({
-    onAwaitingSignature: (buyQuote: BuyQuote) => {
-        const newOrderState: OrderState = { processState: OrderProcessState.AWAITING_SIGNATURE };
+    onValidationPending: (buyQuote: BuyQuote) => {
+        const newOrderState: OrderState = { processState: OrderProcessState.VALIDATING };
         dispatch(actions.updateBuyOrderState(newOrderState));
     },
     onBuyProcessing: (buyQuote: BuyQuote, txHash: string) => {
@@ -72,6 +72,15 @@ const mapDispatchToProps = (
         const errorMessage = 'You denied this transaction';
         errorFlasher.flashNewErrorMessage(dispatch, errorMessage);
     },
+    onValidationFail: (buyQuote, error) => {
+        dispatch(actions.updateBuyOrderState({ processState: OrderProcessState.NONE }));
+        if (error === ZeroExInstantError.InsufficientETH) {
+            const errorMessage = "You don't have enough ETH";
+            errorFlasher.flashNewErrorMessage(dispatch, errorMessage);
+        } else {
+            errorFlasher.flashNewErrorMessage(dispatch);
+        }
+    },
     onRetry: () => {
         dispatch(actions.resetAmount());
     },
diff --git a/packages/instant/src/containers/selected_erc20_asset_amount_input.ts b/packages/instant/src/containers/selected_erc20_asset_amount_input.ts
index 1e93a6deb..4767b15d4 100644
--- a/packages/instant/src/containers/selected_erc20_asset_amount_input.ts
+++ b/packages/instant/src/containers/selected_erc20_asset_amount_input.ts
@@ -7,6 +7,7 @@ import * as React from 'react';
 import { connect } from 'react-redux';
 import { Dispatch } from 'redux';
 
+import { ERC20AssetAmountInput } from '../components/erc20_asset_amount_input';
 import { Action, actions } from '../redux/actions';
 import { State } from '../redux/reducer';
 import { ColorOption } from '../style/theme';
@@ -15,8 +16,6 @@ import { assetUtils } from '../util/asset';
 import { BigNumberInput } from '../util/big_number_input';
 import { errorFlasher } from '../util/error_flasher';
 
-import { ERC20AssetAmountInput } from '../components/erc20_asset_amount_input';
-
 export interface SelectedERC20AssetAmountInputProps {
     fontColor?: ColorOption;
     startingFontSizePx: number;
diff --git a/packages/instant/src/types.ts b/packages/instant/src/types.ts
index e02a815f9..336465e43 100644
--- a/packages/instant/src/types.ts
+++ b/packages/instant/src/types.ts
@@ -10,14 +10,14 @@ export enum AsyncProcessState {
 
 export enum OrderProcessState {
     NONE = 'None',
-    AWAITING_SIGNATURE = 'Awaiting Signature',
+    VALIDATING = 'Validating',
     PROCESSING = 'Processing',
     SUCCESS = 'Success',
     FAILURE = 'Failure',
 }
 
 interface OrderStatePreTx {
-    processState: OrderProcessState.NONE | OrderProcessState.AWAITING_SIGNATURE;
+    processState: OrderProcessState.NONE | OrderProcessState.VALIDATING;
 }
 interface OrderStatePostTx {
     processState: OrderProcessState.PROCESSING | OrderProcessState.SUCCESS | OrderProcessState.FAILURE;
@@ -72,4 +72,5 @@ export enum Network {
 
 export enum ZeroExInstantError {
     AssetMetaDataNotAvailable = 'ASSET_META_DATA_NOT_AVAILABLE',
+    InsufficientETH = 'INSUFFICIENT_ETH',
 }
diff --git a/packages/instant/src/util/address.ts b/packages/instant/src/util/address.ts
new file mode 100644
index 000000000..14d42d8c0
--- /dev/null
+++ b/packages/instant/src/util/address.ts
@@ -0,0 +1,6 @@
+import { web3Wrapper } from '../util/web3_wrapper';
+
+export const getBestAddress = async (): Promise<string | undefined> => {
+    const addresses = await web3Wrapper.getAvailableAddressesAsync();
+    return addresses[0];
+};
diff --git a/packages/instant/src/util/balance.ts b/packages/instant/src/util/balance.ts
new file mode 100644
index 000000000..533656858
--- /dev/null
+++ b/packages/instant/src/util/balance.ts
@@ -0,0 +1,13 @@
+import { BuyQuote } from '@0x/asset-buyer';
+import { Web3Wrapper } from '@0x/web3-wrapper';
+import * as _ from 'lodash';
+
+export const balanceUtil = {
+    hasSufficentEth: async (takerAddress: string | undefined, buyQuote: BuyQuote, web3Wrapper: Web3Wrapper) => {
+        if (_.isUndefined(takerAddress)) {
+            return false;
+        }
+        const balanceWei = await web3Wrapper.getBalanceInWeiAsync(takerAddress);
+        return balanceWei >= buyQuote.worstCaseQuoteInfo.totalEthAmount;
+    },
+};
diff --git a/packages/instant/src/util/format.ts b/packages/instant/src/util/format.ts
index ca7c01359..4a48dec9d 100644
--- a/packages/instant/src/util/format.ts
+++ b/packages/instant/src/util/format.ts
@@ -2,7 +2,7 @@ import { BigNumber } from '@0x/utils';
 import { Web3Wrapper } from '@0x/web3-wrapper';
 import * as _ from 'lodash';
 
-import { ethDecimals } from '../constants';
+import { ETH_DECIMALS } from '../constants';
 
 export const format = {
     ethBaseAmount: (
@@ -13,7 +13,7 @@ export const format = {
         if (_.isUndefined(ethBaseAmount)) {
             return defaultText;
         }
-        const ethUnitAmount = Web3Wrapper.toUnitAmount(ethBaseAmount, ethDecimals);
+        const ethUnitAmount = Web3Wrapper.toUnitAmount(ethBaseAmount, ETH_DECIMALS);
         return format.ethUnitAmount(ethUnitAmount, decimalPlaces);
     },
     ethUnitAmount: (
@@ -36,7 +36,7 @@ export const format = {
         if (_.isUndefined(ethBaseAmount) || _.isUndefined(ethUsdPrice)) {
             return defaultText;
         }
-        const ethUnitAmount = Web3Wrapper.toUnitAmount(ethBaseAmount, ethDecimals);
+        const ethUnitAmount = Web3Wrapper.toUnitAmount(ethBaseAmount, ETH_DECIMALS);
         return format.ethUnitAmountInUsd(ethUnitAmount, ethUsdPrice, decimalPlaces);
     },
     ethUnitAmountInUsd: (
diff --git a/packages/instant/test/util/format.test.ts b/packages/instant/test/util/format.test.ts
index 2c9294c78..c346b7604 100644
--- a/packages/instant/test/util/format.test.ts
+++ b/packages/instant/test/util/format.test.ts
@@ -1,15 +1,15 @@
 import { BigNumber } from '@0x/utils';
 import { Web3Wrapper } from '@0x/web3-wrapper';
 
-import { ethDecimals } from '../../src/constants';
+import { ETH_DECIMALS } from '../../src/constants';
 import { format } from '../../src/util/format';
 
 const BIG_NUMBER_ONE = new BigNumber(1);
 const BIG_NUMBER_DECIMAL = new BigNumber(0.432414);
 const BIG_NUMBER_IRRATIONAL = new BigNumber(5.3014059295032);
-const ONE_ETH_IN_BASE_UNITS = Web3Wrapper.toBaseUnitAmount(BIG_NUMBER_ONE, ethDecimals);
-const DECIMAL_ETH_IN_BASE_UNITS = Web3Wrapper.toBaseUnitAmount(BIG_NUMBER_DECIMAL, ethDecimals);
-const IRRATIONAL_ETH_IN_BASE_UNITS = Web3Wrapper.toBaseUnitAmount(BIG_NUMBER_IRRATIONAL, ethDecimals);
+const ONE_ETH_IN_BASE_UNITS = Web3Wrapper.toBaseUnitAmount(BIG_NUMBER_ONE, ETH_DECIMALS);
+const DECIMAL_ETH_IN_BASE_UNITS = Web3Wrapper.toBaseUnitAmount(BIG_NUMBER_DECIMAL, ETH_DECIMALS);
+const IRRATIONAL_ETH_IN_BASE_UNITS = Web3Wrapper.toBaseUnitAmount(BIG_NUMBER_IRRATIONAL, ETH_DECIMALS);
 const BIG_NUMBER_FAKE_ETH_USD_PRICE = new BigNumber(2.534);
 
 describe('format', () => {
diff --git a/yarn.lock b/yarn.lock
index aeddefa31..18d143ed5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1900,10 +1900,6 @@ aes-js@^0.2.3:
   version "0.2.4"
   resolved "https://registry.yarnpkg.com/aes-js/-/aes-js-0.2.4.tgz#94b881ab717286d015fa219e08fb66709dda5a3d"
 
-aes-js@^3.1.1:
-  version "3.1.1"
-  resolved "https://registry.npmjs.org/aes-js/-/aes-js-3.1.1.tgz#89fd1f94ae51b4c72d62466adc1a7323ff52f072"
-
 agent-base@4, agent-base@^4.1.0, agent-base@~4.2.0:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/agent-base/-/agent-base-4.2.1.tgz#d89e5999f797875674c07d87f260fc41e83e8ca9"
@@ -3341,7 +3337,7 @@ bs-logger@0.x:
   dependencies:
     fast-json-stable-stringify "^2.0.0"
 
-bs58@=4.0.1, bs58@^4.0.0:
+bs58@=4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/bs58/-/bs58-4.0.1.tgz#be161e76c354f6f788ae4071f63f34e8c4f0a42a"
   dependencies:
@@ -3364,14 +3360,6 @@ bs58check@^1.0.8:
     bs58 "^3.1.0"
     create-hash "^1.1.0"
 
-bs58check@^2.1.2:
-  version "2.1.2"
-  resolved "https://registry.npmjs.org/bs58check/-/bs58check-2.1.2.tgz#53b018291228d82a5aa08e7d796fdafda54aebfc"
-  dependencies:
-    bs58 "^4.0.0"
-    create-hash "^1.1.0"
-    safe-buffer "^5.1.2"
-
 bser@^2.0.0:
   version "2.0.0"
   resolved "https://registry.npmjs.org/bser/-/bser-2.0.0.tgz#9ac78d3ed5d915804fd87acb158bc797147a1719"
@@ -5959,19 +5947,6 @@ ethereumjs-wallet@0.6.0:
     utf8 "^2.1.1"
     uuid "^2.0.1"
 
-ethereumjs-wallet@~0.6.0:
-  version "0.6.2"
-  resolved "https://registry.npmjs.org/ethereumjs-wallet/-/ethereumjs-wallet-0.6.2.tgz#67244b6af3e8113b53d709124b25477b64aeccda"
-  dependencies:
-    aes-js "^3.1.1"
-    bs58check "^2.1.2"
-    ethereumjs-util "^5.2.0"
-    hdkey "^1.0.0"
-    safe-buffer "^5.1.2"
-    scrypt.js "^0.2.0"
-    utf8 "^3.0.0"
-    uuid "^3.3.2"
-
 ethers@~4.0.4:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/ethers/-/ethers-4.0.4.tgz#d3f85e8b27f4b59537e06526439b0fb15b44dc65"
@@ -6776,7 +6751,7 @@ ganache-core@0xProject/ganache-core#monorepo-dep:
     ethereumjs-tx "0xProject/ethereumjs-tx#fake-tx-include-signature-by-default"
     ethereumjs-util "^5.2.0"
     ethereumjs-vm "2.3.5"
-    ethereumjs-wallet "~0.6.0"
+    ethereumjs-wallet "0.6.0"
     fake-merkle-patricia-tree "~1.0.1"
     heap "~0.2.6"
     js-scrypt "^0.2.0"
@@ -7501,14 +7476,6 @@ hdkey@^0.7.0, hdkey@^0.7.1:
     coinstring "^2.0.0"
     secp256k1 "^3.0.1"
 
-hdkey@^1.0.0:
-  version "1.1.0"
-  resolved "https://registry.npmjs.org/hdkey/-/hdkey-1.1.0.tgz#e74e7b01d2c47f797fa65d1d839adb7a44639f29"
-  dependencies:
-    coinstring "^2.0.0"
-    safe-buffer "^5.1.1"
-    secp256k1 "^3.0.1"
-
 he@1.1.1:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/he/-/he-1.1.1.tgz#93410fd21b009735151f8868c2f271f3427e23fd"
@@ -15595,10 +15562,6 @@ utf8@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/utf8/-/utf8-2.1.2.tgz#1fa0d9270e9be850d9b05027f63519bf46457d96"
 
-utf8@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.npmjs.org/utf8/-/utf8-3.0.0.tgz#f052eed1364d696e769ef058b183df88c87f69d1"
-
 util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"