From 98684d353f65525b325881a3dbcea602c256e1c1 Mon Sep 17 00:00:00 2001
From: 0age <37939117+0age@users.noreply.github.com>
Date: Mon, 9 Dec 2024 23:17:39 -0800
Subject: [PATCH] add supported chains and finalization thresholds for each to
 /health

---
 README.md                           | 19 ++++++++++++++++++-
 src/__tests__/routes/health.test.ts | 24 ++++++++++++++++++++++++
 src/routes/health.ts                | 24 ++++++++++++++++++++++++
 3 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 9deee4b..2a23698 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,24 @@ Example response:
   "status": "healthy",
   "allocatorAddress": "0x1234567890123456789012345678901234567890",
   "signingAddress": "0x9876543210987654321098765432109876543210",
-  "timestamp": "2024-03-07T12:00:00.000Z"
+  "timestamp": "2024-03-07T12:00:00.000Z",
+  "chainConfig": {
+    "defaultFinalizationThresholdSeconds": 3,
+    "supportedChains": [
+      {
+        "chainId": "1",
+        "finalizationThresholdSeconds": 25
+      },
+      {
+        "chainId": "10",
+        "finalizationThresholdSeconds": 10
+      },
+      {
+        "chainId": "8453",
+        "finalizationThresholdSeconds": 2
+      }
+    ]
+  }
 }
 ```
 
diff --git a/src/__tests__/routes/health.test.ts b/src/__tests__/routes/health.test.ts
index 4229b8a..c518710 100644
--- a/src/__tests__/routes/health.test.ts
+++ b/src/__tests__/routes/health.test.ts
@@ -26,6 +26,30 @@ describe('Health Routes', () => {
       expect(body).toHaveProperty('allocatorAddress');
       expect(body).toHaveProperty('signingAddress');
       expect(body).toHaveProperty('timestamp');
+      expect(body).toHaveProperty('chainConfig');
+
+      // Verify chain config structure and values
+      expect(body.chainConfig).toHaveProperty(
+        'defaultFinalizationThresholdSeconds',
+        3
+      );
+      expect(body.chainConfig).toHaveProperty('supportedChains');
+      expect(Array.isArray(body.chainConfig.supportedChains)).toBe(true);
+
+      // Verify specific chain configurations
+      const chainConfigs = new Map(
+        body.chainConfig.supportedChains.map(
+          (chain: {
+            chainId: string;
+            finalizationThresholdSeconds: number;
+          }) => [chain.chainId, chain.finalizationThresholdSeconds]
+        )
+      );
+
+      expect(chainConfigs.get('1')).toBe(25); // Ethereum Mainnet
+      expect(chainConfigs.get('10')).toBe(10); // Optimism
+      expect(chainConfigs.get('8453')).toBe(2); // Base
+      expect(chainConfigs.size).toBe(3); // Ensure no unexpected chains
 
       // Verify timestamp is a valid ISO 8601 date
       expect(new Date(body.timestamp).toISOString()).toBe(body.timestamp);
diff --git a/src/routes/health.ts b/src/routes/health.ts
index 4575052..5fee765 100644
--- a/src/routes/health.ts
+++ b/src/routes/health.ts
@@ -1,4 +1,13 @@
 import { FastifyInstance } from 'fastify';
+import { chainConfig } from '../chain-config';
+
+interface ChainConfigResponse {
+  defaultFinalizationThresholdSeconds: number;
+  supportedChains: Array<{
+    chainId: string;
+    finalizationThresholdSeconds: number;
+  }>;
+}
 
 export async function setupHealthRoutes(
   server: FastifyInstance
@@ -11,15 +20,30 @@ export async function setupHealthRoutes(
       allocatorAddress: string;
       signingAddress: string;
       timestamp: string;
+      chainConfig: ChainConfigResponse;
     }> => {
       if (!process.env.ALLOCATOR_ADDRESS || !process.env.SIGNING_ADDRESS) {
         throw new Error('Required environment variables are not set');
       }
+
+      // Transform chain config into the desired format
+      const chainConfigResponse: ChainConfigResponse = {
+        defaultFinalizationThresholdSeconds:
+          chainConfig.defaultFinalizationThreshold,
+        supportedChains: Object.entries(chainConfig.finalizationThresholds).map(
+          ([chainId, threshold]) => ({
+            chainId,
+            finalizationThresholdSeconds: threshold,
+          })
+        ),
+      };
+
       return {
         status: 'healthy',
         allocatorAddress: process.env.ALLOCATOR_ADDRESS,
         signingAddress: process.env.SIGNING_ADDRESS,
         timestamp: new Date().toISOString(),
+        chainConfig: chainConfigResponse,
       };
     }
   );