feat: added langchain class, refactored methods to use tlb parser, wrote and ran tests

src/tools/resolve_domain.ts

@@ -1,42 +1,22 @@
-import { Buffer } from "buffer";
-import { PublicKey } from "@solana/web3.js";
-import {
-  getNameAccountKeySync,
-  NAME_PROGRAM_ID,
-} from "@bonfida/spl-name-service";
+import { TldParser } from "@onsol/tldparser";
 import { SolanaAgentKit } from "../index";
+import { PublicKey } from "@solana/web3.js";
 
 /**
- * Resolve a domain to its public key
+ * Resolve all domains for a given agent and domain
  * @param agent SolanaAgentKit instance
  * @param domain Domain name to resolve
- * @returns Associated public key or null if not found
+ * @returns Promise resolving to the domain or undefined if not found
  */
 export async function resolveAllDomains(
   agent: SolanaAgentKit,
   domain: string
-): Promise<PublicKey | null> {
+): Promise<PublicKey | undefined> {
   try {
-    // Convert domain name to buffer for hashing
-    const hashedDomain = Buffer.from(domain);
-
-    // Get the name account key using the new sync method
-    const nameAccountKey = getNameAccountKeySync(
-      hashedDomain,
-      undefined, // nameClass
-      undefined // nameParent
-    );
-
-    // Get the account info to retrieve the owner
-    const owner = await agent.connection.getAccountInfo(nameAccountKey);
-
-    if (!owner) {
-      return null;
-    }
-
-    // The owner's public key is stored in the data buffer starting at offset 32
-    return new PublicKey(owner.data.slice(32, 64));
+   let tld = new TldParser(agent.connection).getOwnerFromDomainTld(domain)
+   return tld;
   } catch (error: any) {
     throw new Error(`Domain resolution failed: ${error.message}`);
   }
 }
+