mirror of
https://github.com/kremalicious/metamask-extension.git
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92971d3c87
* Update eslint-plugin-import version * Convert JS files to use ESM * Update ESLint rules to check imports * Fix test:unit:global command env * Cleanup mock-dev script
23 lines
636 B
JavaScript
23 lines
636 B
JavaScript
import { multiplyCurrencies, subtractCurrencies } from '../../../../../helpers/utils/conversion-util'
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import ethUtil from 'ethereumjs-util'
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export function calcMaxAmount ({ balance, gasTotal, selectedToken, tokenBalance }) {
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const { decimals } = selectedToken || {}
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const multiplier = Math.pow(10, Number(decimals || 0))
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return selectedToken
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? multiplyCurrencies(
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tokenBalance,
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multiplier,
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{
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toNumericBase: 'hex',
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multiplicandBase: 16,
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}
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)
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: subtractCurrencies(
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ethUtil.addHexPrefix(balance),
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ethUtil.addHexPrefix(gasTotal),
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{ toNumericBase: 'hex' }
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)
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}
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