run_script.js

const fs = require("fs");
const Blockchain = require("./blockchain");
const { generateWallet, signMessage } = require("./wallet_utils");

// Create blockchain
const bc = new Blockchain();

// Create wallet
const wallet = generateWallet();
const privateKey = wallet.privateKey;
const publicKey = wallet.publicKey;

// Transaction message
const message = {
  user: "Adarsh",
  action: "cleaned the road"
};

// Generate signature
const signature = signMessage(privateKey, message);

// Add block
bc.addBlock({
  user: "Adarsh",
  action: "cleaned the road",
  signature: signature
});

// Check if chain is valid
console.log("Blockchain valid:", bc.isChainValid());

// Print blockchain
bc.chain.forEach((block) => {
  console.log(`\nBlock #${block.index}`);
  console.log("Timestamp:", block.timestamp);
  console.log("Data:", block.data);
  console.log("Previous Hash:", block.previous_hash);
  console.log("Hash:", block.hash);
});

// Print balances
console.log("\n--- User Balances ---");

try {
  const balances = JSON.parse(fs.readFileSync("balances.json"));

  for (const user in balances) {
    console.log(`${user}: ${balances[user]} CLEAN-COINs`);
  }

} catch (error) {
  console.log("⚠️ No balances found.");
}