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amilcarreyamilcarrey
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Adding hatom lending (#1117)
* Base structura passing test * Adding querys and some calculations * Calculate base and rewards apy * Get total boosted colateral to calculate the boostedAPY * refactor: ➖ Delete boosted rewards * refactor: 🗑️ Clean unnecesary code and packages
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‎src/adaptors/hatom-lending/index.js

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const BigNumber = require('bignumber.js');
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const utils = require('../utils');
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const { calcRewardsAPY } = require('./utils/math.js');
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const { getMoneyMarkets, getTokenPrices, getExchangeRates, getRewardsBatches, getBoostedRewards, getBoostedColateralMap } = require('./utils/data.js');
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const MARKETS = [
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{ symbol: "USDC", address: "erd1qqqqqqqqqqqqqpgqkrgsvct7hfx7ru30mfzk3uy6pxzxn6jj78ss84aldu" },
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{ symbol: 'WBTC', address: "erd1qqqqqqqqqqqqqpgqg47t8v5nwzvdxgf6g5jkxleuplu8y4f678ssfcg5gy" },
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{ symbol: "WETH", address: "erd1qqqqqqqqqqqqqpgq8h8upp38fe9p4ny9ecvsett0usu2ep7978ssypgmrs" },
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{ symbol: "USDT", address: "erd1qqqqqqqqqqqqqpgqvxn0cl35r74tlw2a8d794v795jrzfxyf78sstg8pjr" }
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]
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const apy = async () => {
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const [mm, prices, rewards] = await Promise.all([
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getMoneyMarkets(),
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getTokenPrices(),
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getRewardsBatches(),
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]);
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const exchangeRates = getExchangeRates(mm)
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return MARKETS.map(({ symbol }) => {
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const currentMM = mm[symbol]
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const currentPrice = prices[symbol]
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const currentExchangeRate = exchangeRates[symbol]
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const currentRewards = rewards[symbol]
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const rewardsAPY = calcRewardsAPY({
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speed: currentRewards.speed,
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hTokenExchangeRate: currentExchangeRate,
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totalCollateral: currentMM.totalColateral.toString(),
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marketPrice: currentPrice,
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rewardsToken: currentRewards.rewardsToken,
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rewardsTokenPrice: prices[currentRewards.rewardsToken.symbol],
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marketDecimals: currentMM.decimals
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})
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const tvlUsd = new BigNumber(currentMM.cash).multipliedBy(currentPrice).dividedBy(`1e${currentMM.decimals}`).toNumber()
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const apyBase = mm[symbol].supplyAPY
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const apyReward = new BigNumber(rewardsAPY).toNumber()
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return {
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pool: symbol,
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chain: 'MultiversX',
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project: 'hatom-lending',
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symbol: symbol,
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tvlUsd: tvlUsd,
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apyBase: apyBase,
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apyReward: apyReward,
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rewardTokens: [currentRewards.rewardsToken.symbol],
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}
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})
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}
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module.exports = {
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timetravel: false,
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apy: apy,
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url: 'https://app.hatom.com/lend',
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};

‎src/adaptors/hatom-lending/utils/data.js

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const BigNumber = require('bignumber.js');
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const { default: axios } = require('axios');
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const { request } = require('graphql-request');
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const { queryPrices, queryMoneyMarkets, queryRewards } = require('./queries')
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const { calcLiquidStakingExchangeRate, calcSimulateExchangeRate } = require('./math');
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const API_URL = 'https://mainnet-api.hatom.com/graphql';
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async function getMoneyMarkets() {
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const response = await request(API_URL, queryMoneyMarkets, {});
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return response.queryMoneyMarket.reduce((prev, market) => {
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const symbol = market.underlying.symbol;
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const value = {
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address: market.address,
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decimals: market.underlying.decimals,
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cash: market.stateHistory[0].cash,
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borrows: market.stateHistory[0].borrows,
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reserves: market.stateHistory[0].reserves,
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rate: market.stateHistory[0].supplyRatePerSecond,
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timestamp: market.stateHistory[0].timestamp,
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totalSupply: market.stateHistory[0].totalSupply,
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borrowRatePerSecond: market.stateHistory[0].borrowRatePerSecond,
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supplyAPY: market.stateHistory[0].supplyAPY,
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supplyRatePerSecond: market.stateHistory[0].supplyRatePerSecond,
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totalColateral: market.totalCollateral,
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}
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return {
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...prev,
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[symbol]: value,
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};
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}, {})
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}
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async function getTokenPrices() {
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const { queryToken, queryLiquidStaking } =
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await request(API_URL, queryPrices, {});
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const liquidStakingExchangeRate = calcLiquidStakingExchangeRate(
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queryLiquidStaking?.[0]?.state?.cashReserve,
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queryLiquidStaking?.[0]?.state?.totalShares,
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);
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const queryTokenPopulated = queryToken
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.filter(
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({ dailyPriceHistory, symbol }) =>
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dailyPriceHistory.length > 0 || symbol === 'EGLD',
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)
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.map((tokenItem) => {
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const filteredToken = tokenItem.dailyPriceHistory;
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const priceEgld = filteredToken?.[0]?.quote?.priceInEgld || '0';
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let dailyPriceInEgld = '0';
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if (tokenItem.symbol == 'EGLD') {
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dailyPriceInEgld = '1';
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} else if (tokenItem.symbol == 'SEGLD') {
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dailyPriceInEgld = new BigNumber(1).multipliedBy(liquidStakingExchangeRate).dividedBy(BigNumber.WAD).toString();
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} else {
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dailyPriceInEgld = priceEgld;
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}
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const dailyPriceInUSD = filteredToken?.[0]?.price?.price || '0';
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return {
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...tokenItem,
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dailyPriceInEgld,
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dailyPriceInUSD,
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};
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});
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const itemEgldInUSD = queryTokenPopulated.find(
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({ symbol }) => symbol === 'EGLD',
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);
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const itemEgldInUSDC = queryTokenPopulated.find(
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({ symbol }) => symbol === 'USDC',
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);
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const agregatorEGLDInUSD = new BigNumber(
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itemEgldInUSD?.dailyPriceInUSD || '0',
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)
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.dividedBy(`1e${18}`)
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.toString();
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const priceHistoryEGLDInUSDC =
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new BigNumber(1)
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.dividedBy(itemEgldInUSDC?.dailyPriceInEgld || 0)
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.toString() || '0';
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const usdcPriceInEgld = new BigNumber(agregatorEGLDInUSD).isZero()
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? priceHistoryEGLDInUSDC
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: agregatorEGLDInUSD;
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const egldInUsdc = usdcPriceInEgld !== '0' ? usdcPriceInEgld : '0';
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return queryTokenPopulated.reduce(
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(prev, { dailyPriceInEgld, dailyPriceInUSD, symbol }) => {
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const priceUSD =
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!new BigNumber(egldInUsdc).isEqualTo('0') ||
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!new BigNumber(dailyPriceInEgld).isEqualTo('0')
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? new BigNumber(egldInUsdc)
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.multipliedBy(dailyPriceInEgld)
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.toString()
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: '0';
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const value = !new BigNumber(dailyPriceInUSD).isZero()
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? new BigNumber(dailyPriceInUSD).dividedBy(`1e${18}`).toString()
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: priceUSD;
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return {
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...prev,
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[symbol]: value,
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};
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},
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{},
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)
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}
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function getExchangeRates(moneyMarkets) {
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const symbols = Object.keys(moneyMarkets);
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return symbols.reduce(
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(prev, symbol) => {
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const value = calcSimulateExchangeRate({
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cash: moneyMarkets[symbol].cash || '0',
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borrows:
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moneyMarkets[symbol].borrows || '0',
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reserves:
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moneyMarkets[symbol].reserves || '0',
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totalSupply:
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moneyMarkets[symbol].totalSupply || '0',
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rate:
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moneyMarkets[symbol].supplyRatePerSecond || '0',
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timestamp:
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moneyMarkets[symbol].timestamp || new Date().toISOString(),
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})
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return {
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...prev,
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[symbol]: value
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}
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},
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{},
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);
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}
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async function getRewardsBatches() {
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const response = await request(API_URL, queryRewards, {});
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return response.queryRewardsBatchState.reduce((prev, batch) => {
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const symbol = batch.moneyMarket.underlying.symbol;
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const value = {
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id: batch.id,
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speed: batch.speed,
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type: batch.type,
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endTime: batch.endTime,
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fullyDistributed: batch.fullyDistributed,
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totalAmount: batch.totalAmount,
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rewardsToken: batch.rewardsToken,
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}
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return {
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...prev,
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[symbol]: value,
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};
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}, {})
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}
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module.exports = {
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getMoneyMarkets,
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getTokenPrices,
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getExchangeRates,
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getRewardsBatches,
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}

‎src/adaptors/hatom-lending/utils/math.js

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const BigNumber = require('bignumber.js');
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const calcRewardsAPY = ({
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speed,
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hTokenExchangeRate,
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totalCollateral,
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marketPrice,
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rewardsToken,
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rewardsTokenPrice,
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marketDecimals,
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}) => {
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const SECONDS_PER_DAY = new BigNumber(86400);
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const DAYS_PER_YEAR = new BigNumber(365);
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const secondsInAYear = new BigNumber(SECONDS_PER_DAY).multipliedBy(
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DAYS_PER_YEAR,
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);
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const sp = new BigNumber(speed).dividedBy(`1e${18 + rewardsToken?.decimals}`);
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const calc1 = sp
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.multipliedBy(rewardsTokenPrice)
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.multipliedBy(secondsInAYear);
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const calc2 = new BigNumber(totalCollateral)
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.multipliedBy(hTokenExchangeRate)
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.dividedBy(`1e18`)
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.dividedBy(`1e${marketDecimals}`)
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.multipliedBy(marketPrice);
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if (calc2.isEqualTo(0)) {
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return '0';
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}
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const result = calc1.dividedBy(calc2).multipliedBy(100);
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return result.isNaN() ? '0' : result.toString();
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};
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const calcSimulateExchangeRate = ({
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cash,
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borrows,
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reserves,
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totalSupply,
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rate,
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timestamp,
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}) => {
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return new BigNumber(
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calcExchangeRate({ cash, borrows, reserves, totalSupply }),
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)
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.multipliedBy(calcRateSimulate(rate, timestamp))
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.toString();
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};
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const calcRateSimulate = (rate, timestamp) => {
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const currentDate = new Date();
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const currentDateInSeconds = currentDate.getTime() / 1000;
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const timestampInSeconds = new Date(timestamp).getTime() / 1000;
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return new BigNumber(rate)
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.multipliedBy(currentDateInSeconds - timestampInSeconds)
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.dividedBy(`1e18`)
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.plus(1)
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.toString();
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};
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const calcExchangeRate = ({ cash, borrows, reserves, totalSupply }) => {
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const value = new BigNumber(cash)
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.plus(borrows)
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.minus(reserves)
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.times(1e18)
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.div(totalSupply)
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.toFixed(0);
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return new BigNumber(value).isNaN() ? '0' : value;
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};
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const calcLiquidStakingExchangeRate = (cashReserve, totalShares) => {
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if (totalShares === '0') {
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return INITIAL_EXCHANGE_RATE;
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}
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return new BigNumber(cashReserve)
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.multipliedBy(`1e18`)
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.dividedBy(totalShares)
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.toFixed(0, BigNumber.ROUND_DOWN);
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};
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module.exports = {
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calcRewardsAPY,
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calcLiquidStakingExchangeRate,
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calcSimulateExchangeRate,
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};

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