feat: add TermMax protocol fee adapter for Ethereum, Arbitrum, and BSC

Author: tkspring-henry

fees/termmax/index.ts

@@ -0,0 +1,137 @@
+import { EventLog, getAddress, zeroPadValue } from "ethers";
+import { Adapter, FetchOptions } from "../../adapters/types";
+import { CHAIN } from "../../helpers/chains";
+
+const ABIS = {
+  Market: {
+    config:
+      "function config() external view returns (address treasurer, uint64 maturity, tuple(uint32,uint32,uint32,uint32,uint32,uint32) feeConfig)",
+    tokens:
+      "function tokens() external view returns (address fixedToken, address xToken, address gearingToken, address collateral, address debt)",
+  },
+};
+
+const Events = {
+  CreateMarket: {
+    eventAbi:
+      "event CreateMarket(address indexed market, address indexed collateral, address indexed debtToken)",
+    topic: "0x3f53d2c2743b2b162c0aa5d678be4058d3ae2043700424be52c04105df3e2411",
+  },
+  Transfer: {
+    topic: "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
+  },
+};
+
+const Factories = {
+  arbitrum: {
+    address: "0x14920Eb11b71873d01c93B589b40585dacfCA096",
+    fromBlock: 322193553,
+  },
+  bsc: {
+    address: "0x8Df05E11e72378c1710e296450Bf6b72e2F12019",
+    fromBlock: 50519690,
+  },
+  ethereum: {
+    address: "0x37Ba9934aAbA7a49cC29d0952C6a91d7c7043dbc",
+    fromBlock: 22174761,
+  },
+};
+
+interface Market {
+  ftAddr: string;
+  treasurerAddr: string;
+  underlyingAddr: string;
+}
+
+const fetch = async (options: FetchOptions) => {
+  const dailyFees = options.createBalances();
+
+  const logs = await options.getLogs({
+    target: Factories[options.chain].address,
+    eventAbi: Events.CreateMarket.eventAbi,
+    topic: Events.CreateMarket.topic,
+    fromBlock: Factories[options.chain].fromBlock,
+  });
+  const marketAddresses = logs.map((log) => log[0]);
+
+  const [allConfigs, allTokens] = await Promise.all([
+    options.fromApi.multiCall({
+      calls: marketAddresses,
+      abi: ABIS.Market.config,
+    }),
+    options.fromApi.multiCall({
+      calls: marketAddresses,
+      abi: ABIS.Market.tokens,
+    }),
+  ]);
+
+  const markets: Market[] = [];
+  for (let i = 0; i < marketAddresses.length; i++) {
+    const config = allConfigs[i];
+    const tokens = allTokens[i];
+    if (config && tokens) {
+      markets.push({
+        ftAddr: tokens[0],
+        treasurerAddr: config[0],
+        underlyingAddr: tokens[4],
+      });
+    }
+  }
+
+  const treasurerAddrs = Array.from(
+    new Set(markets.map((m) => m.treasurerAddr))
+  );
+  const promises: Promise<void>[] = [];
+  for (const treasurerAddr of treasurerAddrs) {
+    const task = async () => {
+      const market = markets.find((m) => m.treasurerAddr === treasurerAddr);
+      if (!market) return;
+
+      const logs = (await options.toApi.getLogs({
+        targets: markets.map((market) => market.ftAddr),
+        topics: [
+          Events.Transfer.topic,
+          null,
+          zeroPadValue(treasurerAddr.toLowerCase(), 32),
+        ],
+        fromTimestamp: options.fromTimestamp,
+        toTimestamp: options.toTimestamp,
+      })) as EventLog[];
+      for (const log of logs) {
+        dailyFees.add(market.underlyingAddr, BigInt(log.data));
+      }
+    };
+    promises.push(task());
+  }
+  await Promise.all(promises);
+
+  return { dailyFees };
+};
+
+const methodology = {
+  dailyFees:
+    "Fees collected by the TermMax protocol from users, distributed to the treasury",
+};
+
+const adapters: Adapter = {
+  version: 2,
+  adapter: {
+    [CHAIN.ETHEREUM]: {
+      fetch,
+      start: "2025-04-15",
+      meta: { methodology },
+    },
+    [CHAIN.ARBITRUM]: {
+      fetch,
+      start: "2025-04-15",
+      meta: { methodology },
+    },
+    [CHAIN.BSC]: {
+      fetch,
+      start: "2025-05-30",
+      meta: { methodology },
+    },
+  },
+};
+
+export default adapters;