From 193cf21f2df4ea621f4e0bfed3bbc05e0d459e25 Mon Sep 17 00:00:00 2001
From: ygd58 <buraysandro9@gmail.com>
Date: Sat, 6 Jun 2026 19:10:39 +0200
Subject: [PATCH] fix: resolve getSlashingAddress removed from SDK in
 validator-history

getSlashingAddress() was removed from genlayer-js SDK (v0.39+).
This caused 'client.getSlashingAddress is not a function' error
when running 'genlayer staking validator-history'.

Fix: dynamically read idleness contract address from consensusMain
contract via viem readContract. Falls back to staking address if
resolution fails, so reward events still work.

Fixes #341
---
 src/commands/staking/validatorHistory.ts | 32 ++++++++++++++++++++++--
 1 file changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/commands/staking/validatorHistory.ts b/src/commands/staking/validatorHistory.ts
index 071ad84c..6858daf5 100644
--- a/src/commands/staking/validatorHistory.ts
+++ b/src/commands/staking/validatorHistory.ts
@@ -1,6 +1,6 @@
 import {StakingAction, StakingConfig, BUILT_IN_NETWORKS} from "./StakingAction";
 import type {Address, GenLayerChain} from "genlayer-js/types";
-import {createPublicClient, http} from "viem";
+import {createPublicClient, http, getContract} from "viem";
 import Table from "cli-table3";
 import chalk from "chalk";
 
@@ -104,7 +104,35 @@ export class ValidatorHistoryAction extends StakingAction {
 
       // Get addresses
       const stakingAddress = client.getStakingContract().address;
-      const slashingAddress = await client.getSlashingAddress();
+
+      // getSlashingAddress() was removed in SDK v0.39+.
+      // Read idleness contract address from AddressManager via viem.
+      const ADDRESS_MANAGER_ABI = [{
+        type: "function",
+        name: "getIdlenessAddress",
+        stateMutability: "view",
+        inputs: [],
+        outputs: [{ name: "", type: "address" }],
+      }] as const;
+
+      // Fallback: use staking address if idleness address cannot be resolved
+      let slashingAddress: string = stakingAddress;
+      try {
+        const tempClient = createPublicClient({
+          chain,
+          transport: http(chain.rpcUrls.default.http[0]),
+        });
+        const consensusAddress = chain.consensusMainContract?.address as `0x${string}` | undefined;
+        if (consensusAddress) {
+          slashingAddress = await tempClient.readContract({
+            address: consensusAddress,
+            abi: ADDRESS_MANAGER_ABI,
+            functionName: "getIdlenessAddress",
+          }) as string;
+        }
+      } catch (_) {
+        // If resolution fails, slash events won't be fetched but reward events will still work
+      }
 
       // Create public client for log fetching
       const publicClient = createPublicClient({