Initial commit with 🏗️ Scaffold-ETH 2 @ 1.0.5

packages/nextjs/app/blockexplorer/address/[address]/page.tsx

@@ -0,0 +1,101 @@
+import fs from "fs";
+import path from "path";
+import { Address } from "viem";
+import { hardhat } from "viem/chains";
+import { AddressComponent } from "~~/app/blockexplorer/_components/AddressComponent";
+import deployedContracts from "~~/contracts/deployedContracts";
+import { isZeroAddress } from "~~/utils/scaffold-eth/common";
+import { GenericContractsDeclaration } from "~~/utils/scaffold-eth/contract";
+
+type PageProps = {
+  params: Promise<{ address: Address }>;
+};
+
+async function fetchByteCodeAndAssembly(buildInfoDirectory: string, contractPath: string) {
+  const buildInfoFiles = fs.readdirSync(buildInfoDirectory);
+  let bytecode = "";
+  let assembly = "";
+
+  for (let i = 0; i < buildInfoFiles.length; i++) {
+    const filePath = path.join(buildInfoDirectory, buildInfoFiles[i]);
+
+    const buildInfo = JSON.parse(fs.readFileSync(filePath, "utf8"));
+
+    if (buildInfo.output.contracts[contractPath]) {
+      for (const contract in buildInfo.output.contracts[contractPath]) {
+        bytecode = buildInfo.output.contracts[contractPath][contract].evm.bytecode.object;
+        assembly = buildInfo.output.contracts[contractPath][contract].evm.bytecode.opcodes;
+        break;
+      }
+    }
+
+    if (bytecode && assembly) {
+      break;
+    }
+  }
+
+  return { bytecode, assembly };
+}
+
+const getContractData = async (address: Address) => {
+  const contracts = deployedContracts as GenericContractsDeclaration | null;
+  const chainId = hardhat.id;
+
+  if (!contracts || !contracts[chainId] || Object.keys(contracts[chainId]).length === 0) {
+    return null;
+  }
+
+  let contractPath = "";
+
+  const buildInfoDirectory = path.join(
+    __dirname,
+    "..",
+    "..",
+    "..",
+    "..",
+    "..",
+    "..",
+    "..",
+    "hardhat",
+    "artifacts",
+    "build-info",
+  );
+
+  if (!fs.existsSync(buildInfoDirectory)) {
+    throw new Error(`Directory ${buildInfoDirectory} not found.`);
+  }
+
+  const deployedContractsOnChain = contracts[chainId];
+  for (const [contractName, contractInfo] of Object.entries(deployedContractsOnChain)) {
+    if (contractInfo.address.toLowerCase() === address.toLowerCase()) {
+      contractPath = `contracts/${contractName}.sol`;
+      break;
+    }
+  }
+
+  if (!contractPath) {
+    // No contract found at this address
+    return null;
+  }
+
+  const { bytecode, assembly } = await fetchByteCodeAndAssembly(buildInfoDirectory, contractPath);
+
+  return { bytecode, assembly };
+};
+
+export function generateStaticParams() {
+  // An workaround to enable static exports in Next.js, generating single dummy page.
+  return [{ address: "0x0000000000000000000000000000000000000000" }];
+}
+
+const AddressPage = async (props: PageProps) => {
+  const params = await props.params;
+  const address = params?.address as Address;
+
+  if (isZeroAddress(address)) return null;
+
+  const contractData: { bytecode: string; assembly: string } | null = await getContractData(address);
+  return <AddressComponent address={address} contractData={contractData} />;
+};
+
+export default AddressPage;