/**
 * This script generates addresses given an account extended public key
 * Usage: edit these fields below and run it like `node generate-address.js`
 */

const assert = require('node:assert/strict');
const HDPublicKey = require('hsd/lib/hd/public');
const Address = require('hsd/lib/primitives/address');
const minimist = require('minimist');
const args = minimist(process.argv.slice(2));


const NETWORK = 'main';
const ACCOUNT_XPUB = args.xpub || 'xpub6BvF6DnLZRV6my62FuQ8nw5TRebL8qr9Wa7u2tE1aEedHWBt4XAfSaNTmP1SM2nXErGWSzxRAHVwqstPzRrsXtA2vn1a4KzLwAVEgLNmfca';

const START = parseInt(args.start || '0');
const NUMBER = parseInt(args.number || '1000');
const END = START + NUMBER - 1;

// Toggle to display change addresses
const DISPLAY_CHANGE = args.change || false;


(() => {
  const account = HDPublicKey.fromBase58(ACCOUNT_XPUB, NETWORK);
  console.log('[*] Using account public key:', account.xpubkey(NETWORK));
  console.log('[*] Generating addresses', START, 'to', END);

  assert(END >= START);
  if (DISPLAY_CHANGE) {
    for (let i = START; i <= END; i++) {
      /** @type {Buffer[]} */
      const keys = [
        account.derive(0).derive(i).publicKey, // receive
        account.derive(1).derive(i).publicKey, // change
      ];

      for (const [branch, key] of keys.entries()) {
        const addr = Address.fromPubkey(key);
        console.log(addr.toString());
      }
    }
  }
  else {
    for (let i = START; i <= END; i++) {
      /** @type {Buffer[]} */
      const keys = [
        account.derive(0).derive(i).publicKey, // receive
      ];

      for (const [branch, key] of keys.entries()) {
        const addr = Address.fromPubkey(key);
        console.log(addr.toString());
      }
    }
  }
})();