solana: kamino maple pools

projects/kamino-lending/market.js

@@ -0,0 +1,64 @@
+const { PublicKey } = require('@solana/web3.js');
+const { getConnection, sumTokens2 } = require('../helper/solana.js');
+const { Program } = require('@project-serum/anchor');
+const kaminoIdl = require('./kamino-lending-idl.json');
+const { MintLayout } = require("../helper/utils/solana/layouts/mixed-layout");
+
+async function isKToken(mint, connection) {
+  const mintInfo = await connection.getAccountInfo(new PublicKey(mint.toString()));
+  const rawMint = MintLayout.decode(mintInfo.data.slice(0, MintLayout.span));
+  const KAMINO_PROGRAM_ID = new PublicKey('6LtLpnUFNByNXLyCoK9wA2MykKAmQNZKBdY8s47dehDc');
+  const [expectedMintAuthority] = PublicKey.findProgramAddressSync(
+    [Buffer.from('authority'), mint.toBuffer()],
+    KAMINO_PROGRAM_ID
+  );
+  return rawMint.mintAuthority !== null && rawMint.mintAuthority.equals(expectedMintAuthority);
+}
+
+async function tvlForMarkets(api, market, borrowed = false) {
+  const connection = getConnection();
+  const programId = new PublicKey('KLend2g3cP87fffoy8q1mQqGKjrxjC8boSyAYavgmjD');
+  const lendingMarketAuthSeed = 'lma';
+  const tokensAndOwners = [];
+  const ktokens = {};
+
+  const kaminoLendProgram = new Program(kaminoIdl, programId, { connection, publicKey: PublicKey.unique() });
+  const reserves = await kaminoLendProgram.account.reserve.all([
+    { dataSize: 8624 },
+    { memcmp: { offset: 32, bytes: market } },
+  ]);
+
+  for (const reserveData of reserves) {
+    const reserve = reserveData.account;
+    if (
+      ktokens[reserve.liquidity.mintPubkey] ||
+      (await isKToken(new PublicKey(reserve.liquidity.mintPubkey), connection))
+    ) {
+      ktokens[reserve.liquidity.mintPubkey] = true;
+    } else {
+      ktokens[reserve.liquidity.mintPubkey] = false;
+      if (borrowed) {
+        // Calculate borrowed amount using this formula
+        // liquidity.borrowedAmountSf / 2**60 / 10**liquidity.mintDecimals
+        const borrowedAmountSf = reserve.liquidity.borrowedAmountSf;
+        const borrowedAmount = borrowedAmountSf / Math.pow(2, 60)
+        api.add(reserve.liquidity.mintPubkey.toString(), borrowedAmount);
+      } else {
+        const [authority] = PublicKey.findProgramAddressSync(
+          [Buffer.from(lendingMarketAuthSeed), new PublicKey(market).toBuffer()],
+          programId
+        );
+        tokensAndOwners.push([reserve.liquidity.mintPubkey.toString(), authority]);
+      }
+    }
+  }
+  if (borrowed) {
+    return api.balances;
+  } else {
+    return sumTokens2({ tokensAndOwners, api });
+  }
+}
+
+module.exports = {
+  tvlForMarkets,
+}

projects/maple/index.js

@@ -14,6 +14,7 @@
 
 const ADDRESSES = require('../helper/coreAssets.json');
 const axios = require('axios');
+const { tvlForMarkets } = require('../kamino-lending/market.js')
 
 const stSYRUP = "0xc7E8b36E0766D9B04c93De68A9D47dD11f260B45";
 
@@ -96,7 +97,10 @@ const staking = async (api) => {
 
 module.exports = {
   hallmarks: [[1670976000, 'V2 Deployment']],
-  solana: { tvl: () => ({})},
+  solana: {
+    tvl: (api) => tvlForMarkets(api, '6WEGfej9B9wjxRs6t4BYpb9iCXd8CpTpJ8fVSNzHCC5y', false),
+    borrowed: (api) => tvlForMarkets(api, '6WEGfej9B9wjxRs6t4BYpb9iCXd8CpTpJ8fVSNzHCC5y', true),
+  },
   ethereum: { 
     tvl: async (api) => processPools(api, "collateralValue"),
     borrowed: async (api) => processPools(api),