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author | Steve Klebanoff <steve.klebanoff@gmail.com> | 2019-01-12 00:53:15 +0800 |
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committer | Steve Klebanoff <steve.klebanoff@gmail.com> | 2019-01-12 00:53:15 +0800 |
commit | faee7513952a4b87d5f9e9dde9deb20126f58834 (patch) | |
tree | 8168000e484e621e1526cf48fb0f979a6d98d972 /packages/instant/src/util/asset.ts | |
parent | 742e5e039dd4e821209b5511fb6a194d11c6291c (diff) | |
parent | 2cf57a48dd2857dd5cf2f31f4c60dd47ae4d34a5 (diff) | |
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Merge branch 'development' into feature/instant/asset-buyer-check-liquidity
Diffstat (limited to 'packages/instant/src/util/asset.ts')
-rw-r--r-- | packages/instant/src/util/asset.ts | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/packages/instant/src/util/asset.ts b/packages/instant/src/util/asset.ts index faaeb7c22..709561dbc 100644 --- a/packages/instant/src/util/asset.ts +++ b/packages/instant/src/util/asset.ts @@ -1,8 +1,10 @@ -import { AssetBuyerError } from '@0x/asset-buyer'; +import { AssetBuyerError, InsufficientAssetLiquidityError } from '@0x/asset-buyer'; import { AssetProxyId, ObjectMap } from '@0x/types'; +import { BigNumber } from '@0x/utils'; +import { Web3Wrapper } from '@0x/web3-wrapper'; import * as _ from 'lodash'; -import { DEFAULT_UNKOWN_ASSET_NAME } from '../constants'; +import { BIG_NUMBER_ZERO, DEFAULT_UNKOWN_ASSET_NAME } from '../constants'; import { assetDataNetworkMapping } from '../data/asset_data_network_mapping'; import { Asset, AssetMetaData, ERC20Asset, Network, ZeroExInstantError } from '../types'; @@ -102,15 +104,29 @@ export const assetUtils = { return assetDataGroupIfExists[Network.Mainnet]; }, getERC20AssetsFromAssets: (assets: Asset[]): ERC20Asset[] => { - const erc20sOrUndefined = _.map( - assets, - asset => (asset.metaData.assetProxyId === AssetProxyId.ERC20 ? (asset as ERC20Asset) : undefined), + const erc20sOrUndefined = _.map(assets, asset => + asset.metaData.assetProxyId === AssetProxyId.ERC20 ? (asset as ERC20Asset) : undefined, ); return _.compact(erc20sOrUndefined); }, assetBuyerErrorMessage: (asset: ERC20Asset, error: Error): string | undefined => { if (error.message === AssetBuyerError.InsufficientAssetLiquidity) { const assetName = assetUtils.bestNameForAsset(asset, 'of this asset'); + if ( + error instanceof InsufficientAssetLiquidityError && + error.amountAvailableToFill.greaterThan(BIG_NUMBER_ZERO) + ) { + const unitAmountAvailableToFill = Web3Wrapper.toUnitAmount( + error.amountAvailableToFill, + asset.metaData.decimals, + ); + const roundedUnitAmountAvailableToFill = unitAmountAvailableToFill.round(2, BigNumber.ROUND_DOWN); + + if (roundedUnitAmountAvailableToFill.greaterThan(BIG_NUMBER_ZERO)) { + return `There are only ${roundedUnitAmountAvailableToFill} ${assetName} available to buy`; + } + } + return `Not enough ${assetName} available`; } else if (error.message === AssetBuyerError.InsufficientZrxLiquidity) { return 'Not enough ZRX available'; |