improve value tutorial

messaging/value/tasks/send.ts

@@ -15,24 +15,33 @@ const main = async (args: any, hre: HardhatRuntimeEnvironment) => {
   const zetaTokenAddress = getAddress("zetaToken", hre.network.name as any);
   const zetaFactory = await hre.ethers.getContractFactory("ZetaEth");
   const zetaToken = zetaFactory.attach(zetaTokenAddress);
-  await zetaToken.approve(args.contract, parseEther(args.amount));
+
+  const destination = hre.config.networks[args.destination]?.chainId;
+  if (destination === undefined) {
+    throw new Error(`${args.destination} is not a valid destination chain`);
+  }
+
+  const recipient = args.address || signer.address;
+  const amount = parseEther(args.amount);
+
+  await (await zetaToken.approve(args.contract, amount)).wait();
 
   const tx = await contract
     .connect(signer)
-    .send(args.destination, args.address, parseEther(args.amount));
+    .send(destination, recipient, amount);
 
   const receipt = await tx.wait();
-  console.log(`✅ "sendHelloWorld" transaction has been broadcasted to ${hre.network.name}
+  console.log(`✅ Transaction has been broadcasted to ${hre.network.name}
 📝 Transaction hash: ${receipt.transactionHash}
 
 Please, refer to ZetaChain's explorer for updates on the progress of the cross-chain transaction.
 
 🌍 Explorer: https://athens3.explorer.zetachain.com/address/${args.contract}
-  `);
+`);
 };
 
 task("send", "Sends a message from one chain to another.", main)
   .addParam("contract", "Contract address")
-  .addParam("address")
-  .addParam("amount", "Token amount to send")
-  .addParam("destination", "Destination chain ID (integer)");
+  .addOptionalParam("address", "Recipient address")
+  .addParam("amount", "Amount of ZETA tokens to send")
+  .addParam("destination", "Destination chain");