contract compilation and deployment done

protocol/hardhat.config.ts

@@ -1,8 +1,55 @@
 import { HardhatUserConfig } from "hardhat/config";
 import "@nomicfoundation/hardhat-toolbox-viem";
+import "hardhat-abi-exporter";
+import "hardhat-contract-sizer";
+
+// dotenv.config();
+
+// const PRIVATE_KEY  = String(process.env.PRIVATE_KEY)
+
 
 const config: HardhatUserConfig = {
-  solidity: "0.8.20",
+ solidity: {
+    compilers: [
+      {
+        version: "0.8.20",
+        settings: {
+          optimizer: {
+            enabled: true,
+            runs: 200,
+          },
+        },
+      },
+    ],
+  },
+
+   abiExporter: [
+    {
+      path: "../src/abi",
+      pretty: false,
+      runOnCompile: true,
+      only: ["Presale", "Dcen", "Token"],
+    },
+  ],
+   contractSizer: {
+    alphaSort: true,
+    disambiguatePaths: false,
+    runOnCompile: true,
+    strict: true,
+    only: ["Presale", "Dcen", "Token"],
+  },
+
+    defaultNetwork: "hardhat",
+  networks: {
+    hardhat: {
+      chainId: 1337, // Customize the chain ID here
+    },
+    // sepolia: {
+    //   url: "https://sepolia.drpc.org",
+    //   accounts: [ PRIVATE_KEY ]
+    // },
+  },
+
 };
 
 export default config;