@thorwallet/xchain-litecoin/lib/get-address.js

Custom Litecoin client and utilities used by XChainJS clients

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.getAddress = void 0;
const tslib_1 = require("tslib");
const Utils = tslib_1.__importStar(require("./utils"));
const Litecoin = tslib_1.__importStar(require("bitcoinjs-lib")); // https://github.com/bitcoinjs/bitcoinjs-lib
const lib_1 = require("@thorwallet/xchain-crypto/lib");
const addrCache = {};
const rootDerivationPaths = {
    mainnet: `m/84'/2'/0'/0/`,
    testnet: `m/84'/1'/0'/0/`,
};
const getFullDerivationPath = (network, index) => {
    return rootDerivationPaths[network] + `${index}`;
};
const getLtcKeys = ({ network, phrase, index, }) => tslib_1.__awaiter(void 0, void 0, void 0, function* () {
    const ltcNetwork = Utils.ltcNetwork(network);
    const seed = yield lib_1.getSeed(phrase);
    const master = yield (yield lib_1.bip32.fromSeed(seed, ltcNetwork)).derivePath(getFullDerivationPath(network, index));
    if (!master.privateKey) {
        throw new Error('Could not get private key from phrase');
    }
    return Litecoin.ECPair.fromPrivateKey(master.privateKey, { network: ltcNetwork });
});
const getAddress = ({ network, phrase, index, }) => tslib_1.__awaiter(void 0, void 0, void 0, function* () {
    if (index < 0) {
        throw new Error('index must be greater than zero');
    }
    if (addrCache[phrase] && addrCache[phrase][index]) {
        return addrCache[phrase][index];
    }
    const ltcNetwork = Utils.ltcNetwork(network);
    const ltcKeys = yield getLtcKeys({ network, phrase, index });
    const { address } = Litecoin.payments.p2wpkh({
        pubkey: ltcKeys.publicKey,
        network: ltcNetwork,
    });
    if (!address) {
        throw new Error('Address not defined');
    }
    if (!addrCache[phrase]) {
        addrCache[phrase] = {};
    }
    addrCache[phrase][index] = address;
    return address;
});
exports.getAddress = getAddress;
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