mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-12-18 15:33:21 +01:00
67303b7865
* Document where we need BigNumber-related changes * Fix 1 unit test * Debug progress * Add required values for each upstream usage of getBigNumber * Switch to base 10 * Address feedback
23 lines
680 B
JavaScript
23 lines
680 B
JavaScript
import {
|
|
multiplyCurrencies,
|
|
subtractCurrencies,
|
|
} from '../../../../../helpers/utils/conversion-util'
|
|
import { addHexPrefix } from '../../../../../../../app/scripts/lib/util'
|
|
|
|
export function calcMaxAmount({ balance, gasTotal, sendToken, tokenBalance }) {
|
|
const { decimals } = sendToken || {}
|
|
const multiplier = Math.pow(10, Number(decimals || 0))
|
|
|
|
return sendToken
|
|
? multiplyCurrencies(tokenBalance, multiplier, {
|
|
toNumericBase: 'hex',
|
|
multiplicandBase: 16,
|
|
multiplierBase: 10,
|
|
})
|
|
: subtractCurrencies(addHexPrefix(balance), addHexPrefix(gasTotal), {
|
|
toNumericBase: 'hex',
|
|
aBase: 16,
|
|
bBase: 16,
|
|
})
|
|
}
|