Added refactoring changes for agent, action and tools

src/tools/lulo/index.ts

@@ -0,0 +1 @@
+export * from "./lend";

src/tools/lulo/lend.ts

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+import { VersionedTransaction } from "@solana/web3.js";
+import { SolanaAgentKit } from "../../index";
+
+/**
+ * Lend tokens for yields using Lulo
+ * @param agent SolanaAgentKit instance
+ * @param amount Amount of USDC to lend
+ * @returns Transaction signature
+ */
+export async function lendAsset(
+  agent: SolanaAgentKit,
+  amount: number,
+): Promise<string> {
+  try {
+    const response = await fetch(
+      `https://blink.lulo.fi/actions?amount=${amount}&symbol=USDC`,
+      {
+        method: "POST",
+        headers: {
+          "Content-Type": "application/json",
+        },
+        body: JSON.stringify({
+          account: agent.wallet.publicKey.toBase58(),
+        }),
+      },
+    );
+
+    const data = await response.json();
+
+    // Deserialize the transaction
+    const luloTxn = VersionedTransaction.deserialize(
+      Buffer.from(data.transaction, "base64"),
+    );
+
+    // Get a recent blockhash and set it
+    const { blockhash } = await agent.connection.getLatestBlockhash();
+    luloTxn.message.recentBlockhash = blockhash;
+
+    // Sign and send transaction
+    luloTxn.sign([agent.wallet]);
+
+    const signature = await agent.connection.sendTransaction(luloTxn, {
+      preflightCommitment: "confirmed",
+      maxRetries: 3,
+    });
+
+    // Wait for confirmation using the latest strategy
+    const latestBlockhash = await agent.connection.getLatestBlockhash();
+    await agent.connection.confirmTransaction({
+      signature,
+      blockhash: latestBlockhash.blockhash,
+      lastValidBlockHeight: latestBlockhash.lastValidBlockHeight,
+    });
+
+    return signature;
+  } catch (error: any) {
+    throw new Error(`Lending failed: ${error.message}`);
+  }
+}