feat adding yeild to magma staking on monad

src/adaptors/magma-staking/index.js

@@ -0,0 +1,221 @@
+const sdk = require('@defillama/sdk');
+const axios = require('axios');
+
+// Time constants
+const SECONDS_PER_DAY = 86400;
+const DAYS_PER_YEAR = 365;
+
+// Contract addresses
+const MAGMA_ADDRESS = '0x8498312A6B3CbD158bf0c93AbdCF29E6e4F55081';
+const STAKING_PRECOMPILE = '0x0000000000000000000000000000000000001000';
+
+// ABI for contract functions
+const MAGMA_ABI = {
+  coreVault: 'address:coreVault',
+  gVault: 'address:gVault',
+  getValidators: 'uint64[]:getValidators',
+  getDelegator:
+    'function getDelegator(uint64 validatorId, address delegator) returns (uint256 stake, uint256 accRewardPerToken, uint256 unclaimedRewards, uint256 deltaStake, uint256 nextDeltaStake, uint64 deltaEpoch, uint64 nextDeltaEpoch)',
+  totalAssets: 'function totalAssets() external view returns (uint256)',
+  totalSupply: 'erc20:totalSupply',
+  symbol: 'erc20:symbol',
+};
+
+const apy = async () => {
+  // Get current timestamp
+  const now = Math.floor(Date.now() / 1000);
+  const timestamp1dayAgo = now - SECONDS_PER_DAY;
+
+  // Fetch block numbers for current and 1 day ago
+  const [blockNow, block1dayAgo] = await Promise.all([
+    axios
+      .get(`https://coins.llama.fi/block/monad/${now}`)
+      .then((r) => r.data.height),
+    axios
+      .get(`https://coins.llama.fi/block/monad/${timestamp1dayAgo}`)
+      .then((r) => r.data.height),
+  ]);
+
+  if (!blockNow || !block1dayAgo) {
+    throw new Error('RPC issue: Failed to fetch block numbers');
+  }
+
+  // Get vault addresses from Magma contract
+  const [coreVaultAddress, gVaultAddress] = await Promise.all([
+    sdk.api.abi.call({
+      target: MAGMA_ADDRESS,
+      abi: MAGMA_ABI.coreVault,
+      chain: 'monad',
+      block: blockNow,
+    }),
+    sdk.api.abi.call({
+      target: MAGMA_ADDRESS,
+      abi: MAGMA_ABI.gVault,
+      chain: 'monad',
+      block: blockNow,
+    }),
+  ]);
+
+  const coreVault = coreVaultAddress.output;
+  const gVault = gVaultAddress.output;
+
+  // Fetch current totalAssets, totalSupply, and symbol for Magma protocol
+  const [totalAssetsNow, totalSupplyNow, symbol] = await Promise.all([
+    sdk.api.abi.call({
+      target: MAGMA_ADDRESS,
+      abi: MAGMA_ABI.totalAssets,
+      chain: 'monad',
+      block: blockNow,
+    }),
+    sdk.api.abi.call({
+      target: MAGMA_ADDRESS,
+      abi: MAGMA_ABI.totalSupply,
+      chain: 'monad',
+      block: blockNow,
+    }),
+    sdk.api.abi.call({
+      target: MAGMA_ADDRESS,
+      abi: MAGMA_ABI.symbol,
+      chain: 'monad',
+    }),
+  ]);
+
+  // Fetch 1 day ago totalAssets and totalSupply
+  const [totalAssets1dayAgo, totalSupply1dayAgo] = await Promise.all([
+    sdk.api.abi.call({
+      target: MAGMA_ADDRESS,
+      abi: MAGMA_ABI.totalAssets,
+      chain: 'monad',
+      block: block1dayAgo,
+    }),
+    sdk.api.abi.call({
+      target: MAGMA_ADDRESS,
+      abi: MAGMA_ABI.totalSupply,
+      chain: 'monad',
+      block: block1dayAgo,
+    }),
+  ]);
+
+  if (
+    !totalAssetsNow.output ||
+    !totalSupplyNow.output ||
+    !totalAssets1dayAgo.output ||
+    !totalSupply1dayAgo.output
+  ) {
+    throw new Error('RPC issue: Failed to fetch contract data');
+  }
+
+  // Calculate share values (multiply by 1e18 to handle decimals)
+  const shareValueNow =
+    (BigInt(totalAssetsNow.output) * BigInt(1e18)) /
+    BigInt(totalSupplyNow.output);
+  const shareValue1dayAgo =
+    (BigInt(totalAssets1dayAgo.output) * BigInt(1e18)) /
+    BigInt(totalSupply1dayAgo.output);
+
+  if (shareValue1dayAgo === 0n) {
+    throw new Error('RPC issue: Previous share value is zero');
+  }
+
+  // Calculate proportion: shareValueNow / shareValue1dayAgo
+  // Multiply by 1e18 to maintain precision
+  const proportion =
+    Number((shareValueNow * BigInt(1e18)) / shareValue1dayAgo) / 1e18;
+
+  if (proportion <= 0) {
+    throw new Error('RPC issue: Invalid proportion calculated');
+  }
+
+  // Calculate APY using the formula:
+  // APY = ((1 + ((proportion - 1) / 365)) ** 365 - 1) * 100
+  // This is equivalent to: APY = (proportion ** 365 - 1) * 100
+  const apyBase = (Math.pow(proportion, DAYS_PER_YEAR) - 1) * 100;
+
+  // Calculate TVL using validator staking info (same as DefiLlama TVL adapter)
+  const vaults = [coreVault, gVault];
+
+  // Get validators for each vault
+  const validatorResults = await Promise.all(
+    vaults.map((vault) =>
+      sdk.api.abi.call({
+        target: vault,
+        abi: MAGMA_ABI.getValidators,
+        chain: 'monad',
+        block: blockNow,
+      })
+    )
+  );
+
+  // Build validator calls for staking precompile
+  const validatorCalls = [];
+  validatorResults.forEach((result, vaultIndex) => {
+    if (result.output) {
+      result.output.forEach((validatorId) => {
+        validatorCalls.push({
+          target: STAKING_PRECOMPILE,
+          params: [validatorId, vaults[vaultIndex]],
+        });
+      });
+    }
+  });
+
+  // Get staking info for all validators
+  let tvlBigInt = 0n;
+  if (validatorCalls.length > 0) {
+    const stakingInfoResults = await sdk.api.abi.multiCall({
+      calls: validatorCalls,
+      abi: MAGMA_ABI.getDelegator,
+      chain: 'monad',
+      block: blockNow,
+    });
+
+    if (stakingInfoResults.output) {
+      stakingInfoResults.output.forEach((result) => {
+        if (result.output) {
+          const { stake, unclaimedRewards, deltaStake, nextDeltaStake } =
+            result.output;
+          tvlBigInt +=
+            BigInt(stake || 0) +
+            BigInt(unclaimedRewards || 0) +
+            BigInt(deltaStake || 0) +
+            BigInt(nextDeltaStake || 0);
+        }
+      });
+    }
+  }
+
+  // Convert to number (assuming 18 decimals for MON)
+  const tvlMon = Number(tvlBigInt) / 1e18;
+
+  // Get MON native token price to convert to USD
+  let tvlUsd;
+  try {
+    const monPriceResponse = await axios.get(
+      'https://coins.llama.fi/prices/current/coingecko:monad'
+    );
+    const monPrice =
+      monPriceResponse.data.coins['coingecko:monad']?.price || 1;
+    tvlUsd = tvlMon * monPrice;
+  } catch (error) {
+    // If price lookup fails, use TVL in MON as-is (assuming 1:1 with USD)
+    tvlUsd = tvlMon;
+  }
+
+  return [
+    {
+      pool: MAGMA_ADDRESS.toLowerCase(),
+      chain: 'monad',
+      project: 'magma-staking',
+      symbol: symbol.output || 'gMON',
+      tvlUsd: tvlUsd,
+      apyBase: apyBase,
+      underlyingTokens: ['0x0000000000000000000000000000000000000000'], // MON
+    },
+  ];
+};
+
+module.exports = {
+  apy,
+  url: 'https://www.magmastaking.xyz/',
+};
+