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import { BuyQuoteInfo } from '@0x/asset-buyer';
import { BigNumber } from '@0x/utils';
import * as _ from 'lodash';
import { oc } from 'ts-optchain';
import { BIG_NUMBER_ZERO } from '../constants';
export interface BuyQuoteWeiAmounts {
assetTotalInWei: BigNumber | undefined;
feeTotalInWei: BigNumber | undefined;
grandTotalInWei: BigNumber | undefined;
pricePerTokenInWei: BigNumber | undefined;
}
export const buyQuoteUtil = {
getWeiAmounts: (
selectedAssetUnitAmount: BigNumber | undefined,
buyQuoteInfo: BuyQuoteInfo | undefined,
): BuyQuoteWeiAmounts => {
const buyQuoteAccessor = oc(buyQuoteInfo);
const assetTotalInWei = buyQuoteAccessor.assetEthAmount();
const pricePerTokenInWei =
!_.isUndefined(assetTotalInWei) &&
!_.isUndefined(selectedAssetUnitAmount) &&
!selectedAssetUnitAmount.eq(BIG_NUMBER_ZERO)
? assetTotalInWei.div(selectedAssetUnitAmount).ceil()
: undefined;
return {
assetTotalInWei,
feeTotalInWei: buyQuoteAccessor.feeEthAmount(),
grandTotalInWei: buyQuoteAccessor.totalEthAmount(),
pricePerTokenInWei,
};
},
};
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