From 84247dbb6fd94b5c4661398eb0a84baa7aaf663f Mon Sep 17 00:00:00 2001
From: gmbronco <83549293+gmbronco@users.noreply.github.com>
Date: Mon, 3 Feb 2025 09:59:07 +0100
Subject: [PATCH] sUSDs - base (#1553)

---
 .changeset/popular-actors-notice.md           |  5 +++
 config/base.ts                                |  4 ++
 .../apr-data-sources/yb-apr-handlers/index.ts |  1 +
 .../yb-apr-handlers/sources/index.ts          |  1 +
 .../sources/susds-apr-handler.ts              | 44 +++++++++++++++++++
 5 files changed, 55 insertions(+)
 create mode 100644 .changeset/popular-actors-notice.md
 create mode 100644 modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/susds-apr-handler.ts

diff --git a/.changeset/popular-actors-notice.md b/.changeset/popular-actors-notice.md
new file mode 100644
index 000000000..c7df7c37b
--- /dev/null
+++ b/.changeset/popular-actors-notice.md
@@ -0,0 +1,5 @@
+---
+'backend': patch
+---
+
+sUSDs - base
diff --git a/config/base.ts b/config/base.ts
index 6ca854395..c804c9612 100644
--- a/config/base.ts
+++ b/config/base.ts
@@ -67,6 +67,10 @@ export default <NetworkData>{
         },
     },
     ybAprConfig: {
+        susds: {
+            oracle: '0x65d946e533748a998b1f0e430803e39a6388f7a1',
+            token: '0x5875eee11cf8398102fdad704c9e96607675467a',
+        },
         morpho: {
             tokens: {},
         },
diff --git a/modules/pool/lib/apr-data-sources/yb-apr-handlers/index.ts b/modules/pool/lib/apr-data-sources/yb-apr-handlers/index.ts
index 10d054294..2ed87d305 100644
--- a/modules/pool/lib/apr-data-sources/yb-apr-handlers/index.ts
+++ b/modules/pool/lib/apr-data-sources/yb-apr-handlers/index.ts
@@ -31,6 +31,7 @@ const sourceToHandler = {
     sftmx: sources.SftmxAprHandler,
     sts: sources.StsAprHandler,
     silo: sources.SiloAprHandler,
+    susds: sources.SUSDSAprHandler,
 };
 
 export class YbAprHandlers {
diff --git a/modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/index.ts b/modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/index.ts
index 6cf86e915..3c23024e8 100644
--- a/modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/index.ts
+++ b/modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/index.ts
@@ -20,6 +20,7 @@ export * from './teth';
 export * from './morpho-apr-handler';
 export * from './morpho-token-apr-handler';
 export * from './usdl-apr-handler';
+export * from './susds-apr-handler';
 // These need a refactor, because they depend on the network context
 export * from './sftmx-apr-handler';
 export * from './sts-apr-handler';
diff --git a/modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/susds-apr-handler.ts b/modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/susds-apr-handler.ts
new file mode 100644
index 000000000..83dcf2934
--- /dev/null
+++ b/modules/pool/lib/apr-data-sources/yb-apr-handlers/sources/susds-apr-handler.ts
@@ -0,0 +1,44 @@
+import { AprHandler } from '../types';
+import config from '../../../../../../config';
+import { createPublicClient, http, parseAbiItem } from 'viem';
+import { base } from 'viem/chains';
+
+const client = createPublicClient({
+    chain: base,
+    transport: http(config.BASE.rpcUrl),
+});
+
+const ssrOracle = '0x65d946e533748a998b1f0e430803e39a6388f7a1';
+
+export class SUSDSAprHandler implements AprHandler {
+    group = 'MAKER';
+    private oracle: string;
+    private token: string;
+
+    constructor({ oracle, token }: { oracle: string; token: string }) {
+        this.oracle = oracle;
+        this.token = token;
+    }
+
+    async getAprs() {
+        const aprs: { [p: string]: { apr: number; isIbYield: boolean; group: string } } = {};
+        try {
+            const apr = await client.readContract({
+                abi: [parseAbiItem('function getAPR() view returns (uint256)')],
+                address: this.oracle as `0x${string}`,
+                functionName: 'getAPR',
+            });
+
+            const tokenApr = Number(apr) * 10 ** -27;
+
+            aprs[this.token] = {
+                apr: tokenApr,
+                isIbYield: false,
+                group: this.group,
+            };
+        } catch (error) {
+            console.error(`sUSDS APR Failed for token ${this.token}: `, error);
+        }
+        return aprs;
+    }
+}