From 6faca9d14857ca97bc1a1b25db1ec7bdcd7c8fd8 Mon Sep 17 00:00:00 2001
From: Milap Sheth <milap@interoplabs.io>
Date: Tue, 27 Aug 2024 04:55:25 +0400
Subject: [PATCH] allow offline computation for domain separator

---
 common/utils.js        | 16 ++++++++++------
 sui/deploy-contract.js |  2 +-
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/common/utils.js b/common/utils.js
index 3aacb270..4d51ba8e 100644
--- a/common/utils.js
+++ b/common/utils.js
@@ -388,14 +388,18 @@ async function getDomainSeparator(config, chain, options) {
         throw new Error(`missing or invalid chain ID`);
     }
 
-    printInfo(`Retrieving domain separator for ${chain.name} from Axelar network`);
-    // const domainSeparator = hexlify((await getContractConfig(config, chain.axelarId)).domain_separator);
     const expectedDomainSeparator = calculateDomainSeparator(chain.axelarId, routerAddress, chainId);
+    if (options.domainSeparator === 'offline') {
+        printInfo('Computed domain separator offline')
+        return expectedDomainSeparator;
+    }
 
-    // TODO: add domain separator prediction support to display before amplifier contracts are ready
-    // if (domainSeparator !== expectedDomainSeparator) {
-    //     throw new Error(`unexpected domain separator (want ${expectedDomainSeparator}, got ${domainSeparator})`);
-    // }
+    printInfo(`Retrieving domain separator for ${chain.name} from Axelar network`);
+    const domainSeparator = hexlify((await getContractConfig(config, chain.axelarId)).domain_separator);
+
+    if (domainSeparator !== expectedDomainSeparator) {
+        throw new Error(`unexpected domain separator (want ${expectedDomainSeparator}, got ${domainSeparator})`);
+    }
 
     return expectedDomainSeparator;
 }
diff --git a/sui/deploy-contract.js b/sui/deploy-contract.js
index 09a91fb7..ff9cba48 100644
--- a/sui/deploy-contract.js
+++ b/sui/deploy-contract.js
@@ -327,7 +327,7 @@ const GATEWAY_CMD_OPTIONS = [
     new Option('--minimumRotationDelay <minimumRotationDelay>', 'minium delay for signer rotations (in second)')
         .argParser((val) => parseInt(val) * 1000)
         .default(24 * 60 * 60),
-    new Option('--domainSeparator <domainSeparator>', 'domain separator'),
+    new Option('--domainSeparator <domainSeparator>', 'domain separator (pass in the keccak256 hash value OR "offline" meaning that its computed locally)'),
     new Option('--nonce <nonce>', 'nonce for the signer (defaults to HashZero)'),
     new Option('--previousSigners <previousSigners>', 'number of previous signers to retain').default('15'),
 ];