feat: add script to encode the withdrawAndCall payload for Sui (#250)

Author: lumtis

examples/call/sui/setup/encodeCallArgs.ts

@@ -0,0 +1,30 @@
+import { ethers } from "ethers";
+
+async function encode() {
+  // this script abi encodes type arguments, objects and the message to be passed to the Sui connected contract
+  // in protocol this encoded bytes array is passed to GatewayZEVM.withdrawAndCall
+
+  const args = process.argv.slice(2);
+
+  if (args.length != 3) {
+    throw new Error(`invalid argument number, expected 3, got ${args.length}`);
+  }
+
+  const typeArguments: string[] = args[0].split(",").map((s) => s.trim());
+  const objects: string[] = args[1].split(",").map((s) =>
+    ethers.utils.hexZeroPad(s.trim(), 32)
+  );
+  const message = args[2];
+
+  // values are abi encoded
+  const encoded = ethers.utils.defaultAbiCoder.encode(
+    ["tuple(string[] typeArguments, bytes32[] objects, bytes message)"],
+    [[typeArguments, objects, message]]
+  );
+
+  console.log(encoded);
+}
+
+encode().catch((err) =>
+  console.error(`Encode args for sui examples error: ${err}, usage: encodeCall.ts <commaSeparatedTypeArguments> <commaSeparatedObjectIDs> <message>`,)
+);