add kai-finance (#1673)

src/adaptors/kai-finance/index.js

@@ -0,0 +1,104 @@
+const sdk = require('@defillama/sdk');
+const axios = require('axios');
+const utils = require('../utils');
+const BigNumber = require('bignumber.js');
+
+const RPC_URL = 'https://fullnode.mainnet.sui.io'
+
+const VAULTS = [
+  {
+    id: '0x7a2f75a3e50fd5f72dfc2f8c9910da5eaa3a1486e4eb1e54a825c09d82214526',
+    coinType: '0x5d4b302506645c37ff133b98c4b50a5ae14841659738d6d733d59d0d217a93bf::coin::COIN',
+  },
+  {
+    id: '0x0fce8baed43faadf6831cd27e5b3a32a11d2a05b3cd1ed36c7c09c5f7bcb4ef4',
+    coinType: '0xc060006111016b8a020ad5b33834984a437aaa7d3c74c18e09a95d48aceab08c::coin::COIN',
+  },
+  {
+    id: '0x16272b75d880ab944c308d47e91d46b2027f55136ee61b3db99098a926b3973c',
+    coinType: '0x0000000000000000000000000000000000000000000000000000000000000002::sui::SUI',
+  },
+  {
+    id: '0x5663035df5f403ad5a015cc2a3264de30370650bc043c4dab4d0012ea5cb7671',
+    coinType: '0xdba34672e30cb065b1f93e3ab55318768fd6fef66c15942c9f7cb846e2f900e7::usdc::USDC',
+  },
+  {
+    id: '0x7a2e56773ad4d9bd4133c67ed0ae60187f00169b584a55c0204175897e41d166',
+    coinType: '0x375f70cf2ae4c00bf37117d0c85a2c71545e6ee05c4a5c7d282cd66a4504b068::usdt::USDT',
+  },
+]
+
+async function getCoinInfos(coinTypes) {
+  const usdcType = '0xdba34672e30cb065b1f93e3ab55318768fd6fef66c15942c9f7cb846e2f900e7::usdc::USDC'
+  const response = await fetch(`https://coins.llama.fi/prices/current/${coinTypes.map(c=>`sui:${c}`).join(',')}`)
+
+  const json = await response.json();
+  return coinTypes.map(coinType => json.coins[`sui:${coinType}`]);
+}
+
+async function getApyData() {
+  const vaultIds = VAULTS.map(vault => vault.id);
+  const coinTypes = VAULTS.map(vault => vault.coinType);
+
+  const [vaultsResponse, coinInfos] = await Promise.all([axios.post(RPC_URL, {
+    jsonrpc: "2.0",
+    id: 1,
+    method: "sui_multiGetObjects",
+    params: [
+      vaultIds,
+        {
+          showContent: true,
+        }
+      ]
+    }),
+    getCoinInfos(coinTypes)
+  ]);
+
+  const apyData = [];
+  for (let i = 0; i < vaultsResponse.data.result.length; i++) {
+    const vaultInfo = VAULTS[i];
+    const vaultResponse = vaultsResponse.data.result[i];
+    const coinInfo = coinInfos[i]
+
+    const vaultData = vaultResponse.data.content.fields;
+    const tlp = vaultData.time_locked_profit.fields;
+
+    let tvl = BigNumber(vaultData.free_balance)
+    for (const strategy of vaultData.strategies.fields.contents) {
+      tvl = tvl.plus(BigNumber(strategy.fields.value.fields.borrowed))
+    }
+    const tvlUsd = tvl.div(10 ** coinInfo.decimals).times(coinInfo.price).toNumber();
+
+    const now = Date.now() / 1000;
+    let unlockPerSecond = new BigNumber(tlp.unlock_per_second)
+    if (now > Number(tlp.final_unlock_ts_sec)) {
+      unlockPerSecond = new BigNumber(0)
+    }
+
+    let apr
+    const unlockPerYear = unlockPerSecond.times(365 * 24 * 60 * 60);
+    if (tvl.gt(0)) {
+      apr = unlockPerYear.div(tvl).toNumber()
+    } else {
+      apr = 0
+    }
+    const apy = utils.aprToApy(apr * 100)
+
+    apyData.push({
+      pool: vaultInfo.id,
+      chain: utils.formatChain('sui'),
+      project: 'kai-finance',
+      symbol: coinInfo.symbol,
+      apy,
+      tvlUsd,
+    })
+  }
+
+  return apyData;
+};
+
+module.exports = {
+  timetravel: false,
+  apy: getApyData,
+  url: 'https://kai.finance',
+};