@ledgerhq/coin-hedera/lib-es/bridge/estimateMaxSpendable.js

Ledger Hedera Coin integration

import BigNumber from "bignumber.js";
import { getMainAccount } from "@ledgerhq/coin-framework/account/index";
import { getEstimatedFees } from "./utils";
export const estimateMaxSpendable = async ({ account, parentAccount, }) => {
    const balance = account.balance;
    const mainAccount = getMainAccount(account, parentAccount);
    const estimatedFees = await getEstimatedFees(mainAccount);
    let maxSpendable = balance.minus(estimatedFees);
    // set max spendable to 0 if negative
    // for cases where the user's account balance is smaller than the estimated fee
    if (maxSpendable.isLessThan(0)) {
        maxSpendable = new BigNumber(0);
    }
    return Promise.resolve(maxSpendable);
};
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