Add verify contract script

Author: portdeveloper

packages/hardhat/package.json

@@ -19,7 +19,7 @@
     "lint": "eslint",
     "lint-staged": "eslint",
     "test": "REPORT_GAS=true hardhat test --network hardhat",
-    "verify": "hardhat etherscan-verify"
+    "verify": "hardhat run scripts/verifyContract.ts"
   },
   "dependencies": {
     "@inquirer/password": "^4.0.2",

packages/hardhat/scripts/verifyContract.ts

@@ -0,0 +1,63 @@
+import { exec } from "child_process";
+import fs from "fs";
+import path from "path";
+import util from "util";
+
+const execPromise = util.promisify(exec);
+
+async function main() {
+  try {
+    // Get the deployments directory path
+    const deploymentsPath = path.join(__dirname, "../deployments/monadTestnet");
+
+    // Read all files in the deployments directory
+    const files = fs.readdirSync(deploymentsPath);
+
+    // Filter for .json files and get the latest one by modification time
+    const jsonFiles = files
+      .filter(file => file.endsWith(".json"))
+      .map(file => ({
+        name: file,
+        time: fs.statSync(path.join(deploymentsPath, file)).mtime.getTime(),
+      }))
+      .sort((a, b) => b.time - a.time);
+
+    if (jsonFiles.length === 0) {
+      throw new Error("No deployment files found");
+    }
+
+    // Read the latest deployment file
+    const latestDeployment = JSON.parse(fs.readFileSync(path.join(deploymentsPath, jsonFiles[0].name), "utf8"));
+
+    const contractAddress = latestDeployment.address;
+    const constructorArgs = latestDeployment.args;
+
+    console.log(`Latest deployed contract address: ${contractAddress}`);
+    console.log(`Contract name: ${jsonFiles[0].name.replace(".json", "")}`);
+    console.log(`Constructor arguments: ${constructorArgs.join(", ")}`);
+
+    // Run the verify command with constructor arguments
+    console.log("Starting verification...");
+    const { stdout, stderr } = await execPromise(
+      `yarn hardhat verify --network monadTestnet ${contractAddress} ${constructorArgs.join(" ")}`,
+    );
+
+    console.log("Verification output:");
+    console.log(stdout);
+
+    if (stderr) {
+      console.error("Verification errors:");
+      console.error(stderr);
+    }
+  } catch (error) {
+    console.error("Error during verification:", error);
+    process.exit(1);
+  }
+}
+
+main()
+  .then(() => process.exit(0))
+  .catch(error => {
+    console.error(error);
+    process.exit(1);
+  });