@ledgerhq/live-common
Version:
Common ground for the Ledger Live apps
35 lines • 1.94 kB
JavaScript
import { getMainAccount } from "../../account";
import { getAlpacaApi } from "./alpaca";
import { createTransaction } from "./createTransaction";
import { bigNumberToBigIntDeep, extractBalances, transactionToIntent } from "./utils";
import BigNumber from "bignumber.js";
import { getBridgeApi } from "./bridge";
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 bridgeApi = getBridgeApi(mainAccount.currency, network);
const draftTransaction = {
...createTransaction(account),
...transaction,
amount: mainAccount.spendableBalance,
useAllAmount: true,
};
let fees = transaction?.fees;
if (!BigNumber.isBigNumber(fees)) {
const { value } = await alpacaApi.estimateFees(transactionToIntent(mainAccount, draftTransaction, alpacaApi.computeIntentType));
fees = new BigNumber(value.toString());
}
// TODO Remove the call to `validateIntent` https://ledgerhq.atlassian.net/browse/LIVE-22229
const { amount } = await alpacaApi.validateIntent(transactionToIntent(account, { ...draftTransaction }, alpacaApi.computeIntentType), extractBalances(account, bridgeApi.getAssetFromToken), bigNumberToBigIntDeep({ value: transaction?.fees ?? new BigNumber(0) }));
if (["stellar", "tezos", "evm"].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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