feat: add the bucket protocol v2 fee

Author: allen-hsu

fees/bucket-protocol-v2/index.ts

@@ -0,0 +1,51 @@
+import { Adapter, FetchOptions } from "../../adapters/types";
+import { CHAIN } from "../../helpers/chains";
+import fetchURL from "../../utils/fetchURL";
+
+const bucketApiURL = "https://backend.bucketprotocol.io/api";
+interface DailyStats {
+  date: string;
+  dailyFee: string;
+  startTimestampMs: number;
+  endTimestampMs: number;
+}
+
+const methodology = {
+  dailyFees:
+    "All the services fees paid by users, including borrow, PSM, liquidation, redeem, flashLoan and interest",
+  dailyRevenue:
+    "All the services fees paid by users, including borrow, PSM, liquidation, redeem, flashLoan and interest earned by Bucket",
+};
+
+const fetchBucketStats = async (
+  _: any,
+  _1: any,
+  { startTimestamp }: FetchOptions
+) => {
+  const url = `${bucketApiURL}/fee/dailystatus?timestamp_ms=${
+    startTimestamp * 1000
+  }`;
+  const stats: DailyStats = (await fetchURL(url)).data;
+
+  const dailyFees = stats.dailyFee;
+  const dailyRevenue = stats.dailyFee;
+
+  return {
+    dailyFees,
+    dailyUserFees: dailyFees,
+    dailyRevenue,
+    dailyProtocolRevenue: dailyRevenue,
+  };
+};
+
+const adapter: Adapter = {
+  methodology,
+  adapter: {
+    [CHAIN.SUI]: {
+      fetch: fetchBucketStats,
+      start: "2025-09-01",
+    },
+  },
+};
+
+export default adapter;