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import { AssetProxyId, ObjectMap } from '@0x/types';
import * as _ from 'lodash';
import { assetDataNetworkMapping } from '../data/asset_data_network_mapping';
import { Asset, AssetMetaData, ERC20Asset, Network, ZeroExInstantError } from '../types';
export const assetUtils = {
createAssetFromAssetData: (
assetData: string,
assetMetaDataMap: ObjectMap<AssetMetaData>,
network: Network,
): Asset => {
return {
assetData,
metaData: assetUtils.getMetaDataOrThrow(assetData, assetMetaDataMap, network),
};
},
getMetaDataOrThrow: (assetData: string, metaDataMap: ObjectMap<AssetMetaData>, network: Network): AssetMetaData => {
let mainnetAssetData: string | undefined = assetData;
if (network !== Network.Mainnet) {
const mainnetAssetDataIfExists = assetUtils.getAssociatedAssetDataIfExists(assetData, network);
// Just so we don't fail in the case where we are on a non-mainnet network,
// but pass in a valid mainnet assetData.
mainnetAssetData = mainnetAssetDataIfExists || assetData;
}
if (_.isUndefined(mainnetAssetData)) {
throw new Error(ZeroExInstantError.AssetMetaDataNotAvailable);
}
const metaData = metaDataMap[mainnetAssetData];
if (_.isUndefined(metaData)) {
throw new Error(ZeroExInstantError.AssetMetaDataNotAvailable);
}
return metaData;
},
bestNameForAsset: (asset?: Asset, defaultName: string = '???'): string => {
if (_.isUndefined(asset)) {
return defaultName;
}
const metaData = asset.metaData;
switch (metaData.assetProxyId) {
case AssetProxyId.ERC20:
return metaData.symbol.toUpperCase();
case AssetProxyId.ERC721:
return metaData.name;
default:
return defaultName;
}
},
formattedSymbolForAsset: (asset?: ERC20Asset, defaultName: string = '???'): string => {
if (_.isUndefined(asset)) {
return defaultName;
}
const symbol = asset.metaData.symbol;
if (symbol.length <= 5) {
return symbol;
}
return `${symbol.slice(0, 3)}…`;
},
getAssociatedAssetDataIfExists: (assetData: string, network: Network): string | undefined => {
const assetDataGroupIfExists = _.find(assetDataNetworkMapping, value => value[network] === assetData);
if (_.isUndefined(assetDataGroupIfExists)) {
return;
}
return assetDataGroupIfExists[Network.Mainnet];
},
};
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