@ledgerhq/live-common
Version:
Common ground for the Ledger Live apps
31 lines • 1.6 kB
JavaScript
import { getMainAccount } from "../../account";
import { getAlpacaApi } from "./alpaca";
import { createTransaction } from "./createTransaction";
import { transactionToIntent } from "./utils";
import BigNumber from "bignumber.js";
export function genericEstimateMaxSpendable(network, kind) {
return async ({ account, parentAccount, transaction }) => {
if (account.type === "TokenAccount") {
return account.spendableBalance;
}
const mainAccount = getMainAccount(account, parentAccount);
const alpacaApi = getAlpacaApi(mainAccount.currency.id, kind);
const draftTransaction = {
...createTransaction(account),
...transaction,
amount: mainAccount.spendableBalance,
useAllAmount: true,
};
let fees = transaction?.fees;
if (transaction?.fees === null || transaction?.fees === undefined) {
fees = (await alpacaApi.estimateFees(transactionToIntent(mainAccount, draftTransaction, alpacaApi.computeIntentType))).value;
}
const { amount } = await alpacaApi.validateIntent(transactionToIntent(account, { ...draftTransaction }, alpacaApi.computeIntentType), { value: transaction?.fees ? BigInt(transaction.fees.toString()) : 0n });
if (["stellar", "tezos"].includes(network)) {
return amount > 0 ? new BigNumber(amount.toString()) : new BigNumber(0);
}
const bnFee = BigNumber(fees.toString());
return BigNumber.max(0, account.spendableBalance.minus(bnFee));
};
}
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