feat: add dEDU and GAINZ token addresses to coreAssets.json; implemen…

projects/GainzSwap/index.js

@@ -0,0 +1,67 @@
+const { sumTokens2 } = require('../helper/unwrapLPs');
+const ADDRESSES = require('../helper/coreAssets.json');
+
+const ROUTER_CONTRACT = '0xd35C85FbA82587c15D2fa255180146A046B67237';
+const WEDU_CONTRACT = ADDRESSES.occ.WEDU;
+const dEDU_CONTRACT = "0x597FFfA69e133Ee9b310bA13734782605C3549b7";
+const CHAIN = 'occ';
+
+/**
+ * Fetch total supply of dEDU token and add to TVL
+ * @param {Object} api - API context
+ */
+async function addDEDUSupplyToTVL(api) {
+  const dEDUSupply = await api.call({
+    target: dEDU_CONTRACT,
+    abi: 'erc20:totalSupply',
+    chain: CHAIN,
+  });
+
+  const dEDUValue = await getTokenPairsDEDU(api);
+
+  api.add(WEDU_CONTRACT, BigInt(dEDUSupply) + BigInt(dEDUValue));
+}
+
+/**
+ * Get other tokens paired in liquidity pools dEDU value
+ * @param {Object} api - API context
+ * @returns {Promise<Array<[string, string]>>} - List of [token, owner] pairs
+ */
+async function getTokenPairsDEDU(api) {
+  const pairs = await api.call({
+    target: ROUTER_CONTRACT,
+    abi: 'function pairs() external view returns (address[] memory)',
+    chain: CHAIN,
+  });
+
+  const reserves = await Promise.all(
+    pairs.map(async (pair) => {
+      const [token0, token1, [reserve0, reserve1]] = await Promise.all([
+        api.call({ target: pair, abi: 'function token0() external view returns (address)', chain: CHAIN }),
+        api.call({ target: pair, abi: 'function token1() external view returns (address)', chain: CHAIN }),
+        api.call({ target: pair, abi: 'function getReserves() public view returns (uint112, uint112, uint32)', chain: CHAIN }),
+      ]);
+
+      return token0.toLowerCase() === dEDU_CONTRACT.toLowerCase() ? reserve0: token1.toLowerCase() === dEDU_CONTRACT.toLowerCase() ? reserve1 : undefined;
+    })
+  );
+
+  return reserves.filter((reserve) => reserve !== undefined).reduce((acc, reserve) =>  acc + BigInt(reserve), 0n);
+}
+
+/**
+ * Main TVL function for occ chain
+ * @param {Object} api - API context
+ */
+async function tvl(api) {
+  await addDEDUSupplyToTVL(api);
+  return sumTokens2({ api, chain: CHAIN});
+}
+
+module.exports = {
+  methodology: 'TVL is calculated as the total value of dEDU in circulation and other token dEDU values in pair contracts.',
+  occ: {
+    tvl,
+  },
+  start: 1736707071,
+};