From a7cf232fae6d68c10c002fb528a8c148e8ad2732 Mon Sep 17 00:00:00 2001
From: nigiri <168690269+0xnigir1@users.noreply.github.com>
Date: Wed, 23 Apr 2025 16:05:48 -0300
Subject: [PATCH] fix(sdk): validate index on createDepositsSecrets (#73)

---
 packages/sdk/src/core/account.service.ts | 4 ++++
 packages/sdk/src/errors/account.error.ts | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/packages/sdk/src/core/account.service.ts b/packages/sdk/src/core/account.service.ts
index ecd9f2c..b28c100 100644
--- a/packages/sdk/src/core/account.service.ts
+++ b/packages/sdk/src/core/account.service.ts
@@ -226,6 +226,10 @@ export class AccountService {
     secret: Secret;
     precommitment: Hash;
   } {
+    if(index && index < 0n) {
+      throw AccountError.invalidIndex(index);
+    }
+
     const accounts = this.account.poolAccounts.get(scope);
     index = index || BigInt(accounts?.length || 0);
 
diff --git a/packages/sdk/src/errors/account.error.ts b/packages/sdk/src/errors/account.error.ts
index da0a7dd..9e14d01 100644
--- a/packages/sdk/src/errors/account.error.ts
+++ b/packages/sdk/src/errors/account.error.ts
@@ -32,4 +32,11 @@ export class AccountError extends SDKError {
       ErrorCode.OPERATION_FAILED,
     );
   }
+
+  public static invalidIndex(index: bigint): AccountError {
+    return new AccountError(
+      `Invalid index: ${index.toString()}`,
+      ErrorCode.INVALID_INPUT,
+    );
+  }
 } 
\ No newline at end of file