@atomiqlabs/sdk-lib
Version:
Basic SDK functionality library for atomiq
115 lines (114 loc) • 4.84 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.IFromBTCSwap = void 0;
const ISwap_1 = require("../../ISwap");
const base_1 = require("@atomiqlabs/base");
const Tokens_1 = require("../../../Tokens");
const IEscrowSwap_1 = require("../IEscrowSwap");
const Fee_1 = require("../../fee/Fee");
class IFromBTCSwap extends IEscrowSwap_1.IEscrowSwap {
constructor(wrapper, initOrObj) {
super(wrapper, initOrObj);
}
/**
* In case swapFee in BTC is not supplied it recalculates it based on swap price
* @protected
*/
tryRecomputeSwapPrice() {
if (this.swapFeeBtc == null) {
this.swapFeeBtc = this.swapFee * this.getInput().rawAmount / this.getOutAmountWithoutFee();
}
super.tryRecomputeSwapPrice();
}
getSwapData() {
return this.data;
}
_getInitiator() {
return this.getSwapData().getClaimer();
}
getOutputTxId() {
return this.claimTxId;
}
getOutputAddress() {
return this._getInitiator();
}
requiresAction() {
return this.isClaimable();
}
//////////////////////////////
//// Amounts & fees
getOutAmountWithoutFee() {
return this.getSwapData().getAmount() + this.swapFee;
}
getSwapFee() {
const feeWithoutBaseFee = this.swapFeeBtc - this.pricingInfo.satsBaseFee;
const swapFeePPM = feeWithoutBaseFee * 1000000n / this.getInputWithoutFee().rawAmount;
return {
amountInSrcToken: (0, Tokens_1.toTokenAmount)(this.swapFeeBtc, this.inputToken, this.wrapper.prices),
amountInDstToken: (0, Tokens_1.toTokenAmount)(this.swapFee, this.wrapper.tokens[this.getSwapData().getToken()], this.wrapper.prices),
usdValue: (abortSignal, preFetchedUsdPrice) => this.wrapper.prices.getBtcUsdValue(this.swapFeeBtc, abortSignal, preFetchedUsdPrice),
composition: {
base: (0, Tokens_1.toTokenAmount)(this.pricingInfo.satsBaseFee, this.inputToken, this.wrapper.prices),
percentage: (0, ISwap_1.ppmToPercentage)(swapFeePPM)
}
};
}
getFee() {
return this.getSwapFee();
}
getFeeBreakdown() {
return [{
type: Fee_1.FeeType.SWAP,
fee: this.getSwapFee()
}];
}
getOutput() {
return (0, Tokens_1.toTokenAmount)(this.getSwapData().getAmount(), this.wrapper.tokens[this.getSwapData().getToken()], this.wrapper.prices);
}
getInputWithoutFee() {
return (0, Tokens_1.toTokenAmount)(this.getInput().rawAmount - this.swapFeeBtc, this.inputToken, this.wrapper.prices);
}
getSecurityDeposit() {
return (0, Tokens_1.toTokenAmount)(this.getSwapData().getSecurityDeposit(), this.wrapper.getNativeToken(), this.wrapper.prices);
}
getTotalDeposit() {
return (0, Tokens_1.toTokenAmount)(this.getSwapData().getTotalDeposit(), this.wrapper.getNativeToken(), this.wrapper.prices);
}
async hasEnoughForTxFees() {
const [balance, commitFee] = await Promise.all([
this.wrapper.contract.getBalance(this._getInitiator(), this.wrapper.chain.getNativeCurrencyAddress(), false),
this.getCommitFee()
]);
const totalFee = commitFee + this.getSwapData().getTotalDeposit();
return {
enoughBalance: balance >= totalFee,
balance: (0, Tokens_1.toTokenAmount)(balance, this.wrapper.getNativeToken(), this.wrapper.prices),
required: (0, Tokens_1.toTokenAmount)(totalFee, this.wrapper.getNativeToken(), this.wrapper.prices)
};
}
//////////////////////////////
//// Commit
/**
* Returns the transactions required for committing the swap on-chain, locking the tokens from the intermediary
* in an HTLC or PTLC
*
* @param skipChecks Skip checks like making sure init signature is still valid and swap wasn't commited yet
* (this is handled when swap is created (quoted), if you commit right after quoting, you can use skipChecks=true)
* @throws {Error} When in invalid state to commit the swap
*/
async txsCommit(skipChecks) {
if (!this.canCommit())
throw new Error("Must be in CREATED state!");
if (!this.initiated) {
this.initiated = true;
await this._saveAndEmit();
}
return await this.wrapper.contract.txsInit(this.data, this.signatureData, skipChecks, this.feeRate).catch(e => Promise.reject(e instanceof base_1.SignatureVerificationError ? new Error("Request timed out") : e));
}
//////////////////////////////
//// Claim
getClaimFee() {
return this.wrapper.contract.getClaimFee(this._getInitiator(), this.getSwapData());
}
}
exports.IFromBTCSwap = IFromBTCSwap;