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// TODO: rename file and export object
import { AssetBuyer, AssetBuyerError, BuyQuote } from '@0x/asset-buyer';
import { AssetProxyId } from '@0x/types';
import { BigNumber } from '@0x/utils';
import { Web3Wrapper } from '@0x/web3-wrapper';
import * as _ from 'lodash';
import { Dispatch } from 'redux';
import { oc } from 'ts-optchain';
import { Action, actions } from '../redux/actions';
import { State } from '../redux/reducer';
import { AffiliateInfo, ERC20Asset } from '../types';
import { assetUtils } from '../util/asset';
import { errorFlasher } from './error_flasher';
export const updateBuyQuoteOrFlashErrorAsync = async (
assetBuyer: AssetBuyer,
asset: ERC20Asset,
assetAmount: BigNumber,
dispatch: Dispatch<Action>,
affiliateInfo?: AffiliateInfo,
) => {
// get a new buy quote.
const baseUnitValue = Web3Wrapper.toBaseUnitAmount(assetAmount, asset.metaData.decimals);
const feePercentage = oc(affiliateInfo).feePercentage();
let newBuyQuote: BuyQuote | undefined;
try {
newBuyQuote = await assetBuyer.getBuyQuoteAsync(asset.assetData, baseUnitValue, { feePercentage });
} catch (error) {
dispatch(actions.setQuoteRequestStateFailure());
let errorMessage;
if (error.message === AssetBuyerError.InsufficientAssetLiquidity) {
const assetName = assetUtils.bestNameForAsset(asset, 'of this asset');
errorMessage = `Not enough ${assetName} available`;
} else if (error.message === AssetBuyerError.InsufficientZrxLiquidity) {
errorMessage = 'Not enough ZRX available';
} else if (
error.message === AssetBuyerError.StandardRelayerApiError ||
error.message.startsWith(AssetBuyerError.AssetUnavailable)
) {
const assetName = assetUtils.bestNameForAsset(asset, 'This asset');
errorMessage = `${assetName} is currently unavailable`;
}
if (!_.isUndefined(errorMessage)) {
errorFlasher.flashNewErrorMessage(dispatch, errorMessage);
} else {
throw error;
}
return;
}
// We have a successful new buy quote
errorFlasher.clearError(dispatch);
// invalidate the last buy quote.
dispatch(actions.updateLatestBuyQuote(newBuyQuote));
};
export const updateBuyQuoteOrFlashErrorAsyncForState = async (state: State, dispatch: Dispatch<Action>) => {
const { selectedAsset, selectedAssetAmount, affiliateInfo } = state;
const assetBuyer = state.providerState.assetBuyer;
if (selectedAsset && selectedAssetAmount && selectedAsset.metaData.assetProxyId === AssetProxyId.ERC20) {
// TODO: maybe dont do in the case of an error showing
updateBuyQuoteOrFlashErrorAsync(
assetBuyer,
selectedAsset as ERC20Asset, // TODO: better way to do this?
selectedAssetAmount,
dispatch,
affiliateInfo,
);
}
};
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