@ledgerhq/coin-stacks/lib/bridge/estimateMaxSpendable.js

Ledger Stacks Coin integration

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.estimateMaxSpendable = void 0;
const index_1 = require("@ledgerhq/coin-framework/account/index");
const abandonseed_1 = require("@ledgerhq/cryptoassets/abandonseed");
const transactions_1 = require("@stacks/transactions");
const bignumber_js_1 = __importDefault(require("bignumber.js"));
const invariant_1 = __importDefault(require("invariant"));
const api_types_1 = require("../network/api.types");
const createTransaction_1 = require("./createTransaction");
const estimateMaxSpendable = async ({ account, parentAccount, transaction, }) => {
    const mainAccount = (0, index_1.getMainAccount)(account, parentAccount);
    const { spendableBalance, xpub } = mainAccount;
    (0, invariant_1.default)(xpub, "xpub is required");
    const dummyTx = {
        ...(0, createTransaction_1.createTransaction)(account),
        ...transaction,
        recipient: (0, abandonseed_1.getAbandonSeedAddress)(mainAccount.currency.id),
        useAllAmount: true,
    };
    // Compute fees
    const { recipient, anchorMode, memo, amount } = dummyTx;
    const network = api_types_1.StacksNetwork[dummyTx.network] || api_types_1.StacksNetwork["mainnet"];
    const options = {
        recipient,
        anchorMode,
        memo,
        network,
        publicKey: xpub,
        amount: amount.toFixed(),
    };
    const tx = await (0, transactions_1.makeUnsignedSTXTokenTransfer)(options);
    const [feeEst] = await (0, transactions_1.estimateTransaction)(tx.payload, (0, transactions_1.estimateTransactionByteLength)(tx), network);
    const diff = spendableBalance.minus(new bignumber_js_1.default(feeEst.fee));
    return diff.gte(0) ? diff : new bignumber_js_1.default(0);
};
exports.estimateMaxSpendable = estimateMaxSpendable;
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