@ledgerhq/coin-ton/lib-es/estimateMaxSpendable.js

Ton Coin integration

import { findSubAccountById, getMainAccount, isTokenAccount, } from "@ledgerhq/coin-framework/account/index";
import { BigNumber } from "bignumber.js";
import { fetchAccountInfo } from "./bridge/bridgeHelpers/api";
import { buildTonTransaction, getTonEstimatedFees } from "./utils";
const estimateMaxSpendable = async ({ account, parentAccount, transaction, }) => {
    const mainAccount = getMainAccount(account, parentAccount);
    let balance = mainAccount.spendableBalance;
    if (balance.eq(0))
        return balance;
    const accountInfo = await fetchAccountInfo(mainAccount.freshAddress);
    const isTokenType = isTokenAccount(account);
    if (transaction && !transaction.subAccountId) {
        transaction.subAccountId = isTokenType ? account.id : null;
    }
    let tokenAccountTxn = false;
    let subAccount;
    if (isTokenType) {
        tokenAccountTxn = true;
        subAccount = account;
    }
    if (transaction?.subAccountId && !subAccount) {
        tokenAccountTxn = true;
        subAccount = findSubAccountById(mainAccount, transaction.subAccountId || "") ?? null;
    }
    if (tokenAccountTxn && subAccount) {
        return subAccount.spendableBalance;
    }
    const estimatedFees = transaction
        ? transaction.fees ??
            (await getTonEstimatedFees(mainAccount, accountInfo.status === "uninit", buildTonTransaction(transaction, accountInfo.seqno, mainAccount)))
        : BigNumber(0);
    if (balance.lte(estimatedFees))
        return new BigNumber(0);
    balance = balance.minus(estimatedFees);
    return balance;
};
export default estimateMaxSpendable;
//# sourceMappingURL=estimateMaxSpendable.js.map