@indigo-labs/dexter
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Customizable Typescript SDK for interacting with Cardano DEXs
181 lines (180 loc) • 13.5 kB
JavaScript
import { LiquidityPool } from './models/liquidity-pool';
import { BaseDex } from './base-dex';
import { DefinitionBuilder } from '../definition-builder';
import { correspondingReserves, lucidUtils, tokensMatch } from '../utils';
import { AddressType, DatumParameterKey } from '../constants';
import pool from './definitions/sundaeswap-v3/pool';
import order from './definitions/sundaeswap-v3/order';
import { SundaeSwapV3Api } from './api/sundaeswap-v3-api';
export class SundaeSwapV3 extends BaseDex {
constructor(requestConfig = {}) {
super();
/**
* On-Chain constants.
*/
this.poolAddress = 'addr1x8srqftqemf0mjlukfszd97ljuxdp44r372txfcr75wrz26rnxqnmtv3hdu2t6chcfhl2zzjh36a87nmd6dwsu3jenqsslnz7e';
this.lpTokenPolicyId = 'e0302560ced2fdcbfcb2602697df970cd0d6a38f94b32703f51c312b';
this.cancelDatum = 'd87a80';
this.orderScriptHash = 'fa6a58bbe2d0ff05534431c8e2f0ef2cbdc1602a8456e4b13c8f3077';
this.orderScript = {
type: 'PlutusV2',
script: '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',
};
this.protocolFeeDefault = 1280000n;
this.api = new SundaeSwapV3Api(this, requestConfig);
}
async liquidityPoolAddresses() {
return Promise.resolve([this.poolAddress]);
}
async liquidityPools(provider, wallet) {
const utxos = await provider.utxos(this.poolAddress);
return await Promise.all(utxos.map(async (utxo) => {
return await this.liquidityPoolFromUtxo(provider, utxo, wallet);
})).then((liquidityPools) => {
return liquidityPools.filter((liquidityPool) => {
return liquidityPool !== undefined;
});
});
}
async liquidityPoolFromUtxo(provider, utxo, wallet) {
if (!utxo.datumHash) {
return Promise.resolve(undefined);
}
const relevantAssets = utxo.assetBalances.filter((assetBalance) => {
const assetBalanceId = assetBalance.asset === 'lovelace' ? 'lovelace' : assetBalance.asset.identifier();
return !assetBalanceId.startsWith(this.lpTokenPolicyId);
});
// Irrelevant UTxO
if (![2, 3].includes(relevantAssets.length)) {
return Promise.resolve(undefined);
}
// Could be ADA/X or X/X pool
const assetAIndex = relevantAssets.length === 2 ? 0 : 1;
const assetBIndex = relevantAssets.length === 2 ? 1 : 2;
try {
const builder = await new DefinitionBuilder().loadDefinition(pool);
const datum = await provider.datumValue(utxo.datumHash);
const parameters = builder.pullParameters(datum);
const reservesA = relevantAssets[assetAIndex].asset === 'lovelace'
? relevantAssets[assetAIndex].quantity - BigInt((parameters.ProtocolFee ?? 0))
: relevantAssets[assetAIndex].quantity;
const reservesB = relevantAssets[assetBIndex].asset === 'lovelace'
? relevantAssets[assetBIndex].quantity - BigInt((parameters.ProtocolFee ?? 0))
: relevantAssets[assetBIndex].quantity;
const liquidityPool = new LiquidityPool(SundaeSwapV3.identifier, relevantAssets[assetAIndex].asset, relevantAssets[assetBIndex].asset, reservesA, reservesB, utxo.address, '', '');
const lpToken = utxo.assetBalances.find((assetBalance) => {
return assetBalance.asset !== 'lovelace' && assetBalance.asset.policyId === this.lpTokenPolicyId;
})?.asset;
if (lpToken) {
lpToken.nameHex = '0014df1' + lpToken.nameHex.substr(7);
liquidityPool.lpToken = lpToken;
liquidityPool.identifier = lpToken.identifier();
}
liquidityPool.lpToken = lpToken;
liquidityPool.identifier = typeof parameters.PoolIdentifier === 'string' ? parameters.PoolIdentifier : '';
liquidityPool.poolFeePercent = typeof parameters.OpeningFee === 'number' ? (parameters.OpeningFee / 10000) * 100 : 0;
liquidityPool.totalLpTokens = typeof parameters.TotalLpTokens === 'number' ? BigInt(parameters.TotalLpTokens) : 0n;
liquidityPool.extra.protocolFee = typeof parameters.ProtocolFee === 'number' ? parameters.ProtocolFee : this.protocolFeeDefault;
return liquidityPool;
}
catch (e) {
return undefined;
}
}
estimatedGive(liquidityPool, swapOutToken, swapOutAmount) {
const [reserveOut, reserveIn] = correspondingReserves(liquidityPool, swapOutToken);
const receive = (reserveIn * reserveOut) / (reserveOut - swapOutAmount) - reserveIn;
const swapFee = (receive * BigInt(Math.floor(liquidityPool.poolFeePercent * 100)) + BigInt(10000) - 1n) / 10000n;
return receive + swapFee;
}
estimatedReceive(liquidityPool, swapInToken, swapInAmount) {
const [reserveIn, reserveOut] = correspondingReserves(liquidityPool, swapInToken);
const swapFee = (swapInAmount * BigInt(Math.floor(liquidityPool.poolFeePercent * 100)) + BigInt(10000) - 1n) / 10000n;
return reserveOut - (reserveIn * reserveOut) / (reserveIn + swapInAmount - swapFee);
}
priceImpactPercent(liquidityPool, swapInToken, swapInAmount) {
const reserveIn = tokensMatch(swapInToken, liquidityPool.assetA) ? liquidityPool.reserveA : liquidityPool.reserveB;
return (1 - Number(reserveIn) / Number(reserveIn + swapInAmount)) * 100;
}
async buildSwapOrder(liquidityPool, swapParameters, spendUtxos = []) {
const protocolFee = this.swapOrderFees().find((fee) => fee.id === 'protocolFee');
const deposit = this.swapOrderFees().find((fee) => fee.id === 'deposit');
if (!protocolFee || !deposit) {
return Promise.reject('Parameters for datum are not set.');
}
swapParameters = {
...swapParameters,
[DatumParameterKey.ProtocolFee]: protocolFee.value,
[DatumParameterKey.CancelDatum]: this.cancelDatum,
};
const datumBuilder = new DefinitionBuilder();
await datumBuilder.loadDefinition(order).then((builder) => {
builder.pushParameters(swapParameters);
});
return [
this.buildSwapOrderPayment(swapParameters, {
address: lucidUtils.credentialToAddress({
type: 'Script',
hash: this.orderScriptHash,
}, {
type: 'Key',
hash: swapParameters.SenderStakingKeyHash,
}),
addressType: AddressType.Contract,
assetBalances: [
{
asset: 'lovelace',
quantity: this.protocolFeeDefault + deposit.value,
},
],
datum: datumBuilder.getCbor(),
isInlineDatum: true,
spendUtxos: spendUtxos,
}),
];
}
async buildCancelSwapOrder(txOutputs, returnAddress) {
const relevantUtxo = txOutputs.find((utxo) => {
const addressDetails = lucidUtils.getAddressDetails(utxo.address);
return (addressDetails.paymentCredential?.hash ?? '') === this.orderScriptHash;
});
if (!relevantUtxo) {
return Promise.reject('Unable to find relevant UTxO for cancelling the swap order.');
}
return [
{
address: returnAddress,
addressType: AddressType.Base,
assetBalances: relevantUtxo.assetBalances,
isInlineDatum: true,
spendUtxos: [
{
utxo: relevantUtxo,
redeemer: this.cancelDatum,
validator: this.orderScript,
signer: returnAddress,
},
],
},
];
}
swapOrderFees() {
return [
{
id: 'protocolFee',
title: 'Sundae Protocol Fee',
description: 'Sundae Protocol Fee',
value: this.protocolFeeDefault,
isReturned: false,
},
{
id: 'deposit',
title: 'Deposit',
description: 'A small ADA deposit that you will get back when your order is processed or cancelled.',
value: 2000000n,
isReturned: true,
},
];
}
}
SundaeSwapV3.identifier = 'SundaeSwapV3';