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https://github.com/kremalicious/metamask-extension.git
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23 lines
685 B
JavaScript
23 lines
685 B
JavaScript
import {
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multiplyCurrencies,
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subtractCurrencies,
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} from '../../../../../helpers/utils/conversion-util';
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import { addHexPrefix } from '../../../../../../../app/scripts/lib/util';
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export function calcMaxAmount({ balance, gasTotal, sendToken, tokenBalance }) {
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const { decimals } = sendToken || {};
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const multiplier = Math.pow(10, Number(decimals || 0));
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return sendToken
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? multiplyCurrencies(tokenBalance, multiplier, {
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toNumericBase: 'hex',
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multiplicandBase: 16,
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multiplierBase: 10,
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})
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: subtractCurrencies(addHexPrefix(balance), addHexPrefix(gasTotal), {
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toNumericBase: 'hex',
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aBase: 16,
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bBase: 16,
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});
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}
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