Add encoding for name schema args

src/lib/protocol/easSchemas/constants.ts

@@ -1,8 +1,23 @@
-import { getSchemaUID } from '@ethereum-attestation-service/eas-sdk';
+import { getSchemaUID, SchemaEncoder } from '@ethereum-attestation-service/eas-sdk';
 
 export const NULL_EAS_REF_UID = '0x0000000000000000000000000000000000000000000000000000000000000000';
 
 export const NULL_EVM_ADDRESS = '0x0000000000000000000000000000000000000000';
 
+// This allows us to encode the schemaId and name of a name schema attestation
 // Obtained from https://github.com/ethereum-attestation-service/eas-contracts/blob/558250dae4cb434859b1ac3b6d32833c6448be21/deploy/scripts/000004-name-initial-schemas.ts#L10C1-L11C1
-export const NAME_SCHEMA_UID = getSchemaUID('bytes32 schemaId,string name', NULL_EVM_ADDRESS, true);
+export const NAME_SCHEMA_UID = getSchemaUID('bytes32 schemaId,string name', NULL_EVM_ADDRESS, true) as `0x${string}`;
+
+export type NameSchemaAttestation = {
+  schemaId: `0x${string}`;
+  name: string;
+};
+
+export function encodeNameSchemaAttestation({ name, schemaId }: NameSchemaAttestation): `0x${string}` {
+  const encoder = new SchemaEncoder(NAME_SCHEMA_UID);
+
+  return encoder.encodeData([
+    { name: 'schemaId', type: 'bytes32', value: schemaId },
+    { name: 'name', type: 'string', value: name }
+  ]) as `0x${string}`;
+}