@atomiqlabs/sdk
Version:
atomiq labs SDK for cross-chain swaps between smart chains and bitcoin
83 lines (82 loc) • 3.58 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.LnForGasWrapper = void 0;
const LnForGasSwap_1 = require("./LnForGasSwap");
const ISwapWrapper_1 = require("../../ISwapWrapper");
const bolt11_1 = require("@atomiqlabs/bolt11");
const IntermediaryError_1 = require("../../../errors/IntermediaryError");
const SwapType_1 = require("../../../enums/SwapType");
/**
* Trusted swap for Bitcoin Lightning -> Smart chains, to be used for minor amounts to get gas tokens on
* the destination chain, which is only needed for Solana, which still uses legacy swaps
*
* @category Swaps/Trusted Gas Swaps
*/
class LnForGasWrapper extends ISwapWrapper_1.ISwapWrapper {
constructor() {
super(...arguments);
this.TYPE = SwapType_1.SwapType.TRUSTED_FROM_BTCLN;
/**
* @internal
*/
this._swapDeserializer = LnForGasSwap_1.LnForGasSwap;
/**
* @internal
*/
this._pendingSwapStates = [LnForGasSwap_1.LnForGasSwapState.PR_CREATED];
/**
* @internal
*/
this.tickSwapState = undefined;
/**
* @internal
*/
this.processEvent = undefined;
}
/**
* Returns a newly created trusted Lightning network -> Smart chain swap, receiving
* the specified amount of native token on the destination chain.
*
* @param recipient Address of the recipient on the smart chain destination chain
* @param amount Amount of native token to receive in base units
* @param lpOrUrl Intermediary (LP) to use for the swap
*/
async create(recipient, amount, lpOrUrl) {
if (!this.isInitialized)
throw new Error("Not initialized, call init() first!");
const lpUrl = typeof (lpOrUrl) === "string" ? lpOrUrl : lpOrUrl.url;
const token = this._chain.getNativeCurrencyAddress();
const resp = await this._lpApi.initTrustedFromBTCLN(this.chainIdentifier, lpUrl, {
address: recipient,
amount,
token
}, this._options.getRequestTimeout);
const decodedPr = (0, bolt11_1.decode)(resp.pr);
if (decodedPr.millisatoshis == null)
throw new Error("Invalid payment request returned, no msat amount value!");
if (decodedPr.timeExpireDate == null)
throw new Error("Invalid payment request returned, no time expire date!");
const amountIn = (BigInt(decodedPr.millisatoshis) + 999n) / 1000n;
if (resp.total !== amount)
throw new IntermediaryError_1.IntermediaryError("Invalid total returned");
const pricingInfo = await this.verifyReturnedPrice(typeof (lpOrUrl) === "string" || lpOrUrl.services[SwapType_1.SwapType.TRUSTED_FROM_BTCLN] == null ?
{ swapFeePPM: 10000, swapBaseFee: 10 } :
lpOrUrl.services[SwapType_1.SwapType.TRUSTED_FROM_BTCLN], false, amountIn, amount, token, { swapFeeBtc: resp.swapFeeSats });
const quoteInit = {
pr: resp.pr,
outputAmount: resp.total,
recipient,
pricingInfo,
url: lpUrl,
expiry: decodedPr.timeExpireDate * 1000,
swapFee: resp.swapFee,
swapFeeBtc: resp.swapFeeSats,
token,
exactIn: false,
contractVersion: "v1"
};
const quote = new LnForGasSwap_1.LnForGasSwap(this, quoteInit);
return quote;
}
}
exports.LnForGasWrapper = LnForGasWrapper;