deviant/scripts/verify-gateway.mjs

#!/usr/bin/env node
/**
 * verify-gateway.mjs — verify the DeviantBitcoinCashGateway source on the block
 * explorer, so wallets render the deposit as the decoded, human-named method
 * "Deposit To Bitcoin Cash" with named parameters (instead of a raw contract blob).
 *
 * Etherscan (Sepolia) is fully automated here — it just needs an API key:
 *     ETHERSCAN_API_KEY=xxxxx node scripts/verify-gateway.mjs
 * Tron/Nile (Tronscan) uses a different flow; this prints the exact settings to paste
 * into the Tronscan "Verify & Publish Contract Source Code" page.
 *
 * The contract is a single self-contained file (no imports) → the .sol IS the flattened
 * source, and we submit it as solc standard-JSON (the most robust verification format),
 * with the EXACT compiler settings the correspondent service used.
 */
import { readFileSync, existsSync } from 'node:fs';
import { join } from 'node:path';
import solc from 'solc';
import { AbiCoder } from 'ethers';

const ROOT = join(import.meta.dirname, '..');
const SRC_PATH = join(ROOT, 'contracts/evm/DeviantBitcoinCashGateway.sol');
const STATE = join(ROOT, 'services/correspondent/.correspondent-state.json');
const SRC = readFileSync(SRC_PATH, 'utf8');
const CONTRACT = 'DeviantBitcoinCashGateway.sol:DeviantBitcoinCashGateway';
const USDC = '0x1c7D4B196Cb0C7B01d743Fbc6116a902379C7238';

// solc "0.8.26+commit.8a97fa7a.Emscripten.clang" → Etherscan "v0.8.26+commit.8a97fa7a"
const longVer = solc.version();
const compilerversion = 'v' + longVer.replace(/\.Emscripten.*$/, '').replace(/^soljson-/, '');

// The EXACT standard-JSON input the service compiles with (evm.mjs / paris).
const standardJson = {
  language: 'Solidity',
  sources: { 'DeviantBitcoinCashGateway.sol': { content: SRC } },
  settings: { evmVersion: 'paris', optimizer: { enabled: true, runs: 200 }, outputSelection: { '*': { '*': ['abi', 'evm.bytecode.object'] } } },
};

function deployed() {
  const arg = process.argv.find((a) => a.startsWith('0x') && a.length === 42);
  if (arg) return arg;
  if (existsSync(STATE)) { const s = JSON.parse(readFileSync(STATE, 'utf8')); const a = s.vaults?.['USDC (Ethereum)']?.address; if (a) return a; }
  throw new Error('pass the deployed Sepolia gateway address (0x…) or run a deposit first to populate state');
}

async function main() {
  const address = deployed();
  const operator = '0xCA144dcbB9e0986141242D16F235cAb752c141bF'; // service operator (== .sepolia-keys addr)
  const ctorArgs = AbiCoder.defaultAbiCoder().encode(['address', 'address'], [USDC, operator]).slice(2);

  console.log(`Gateway (Sepolia): ${address}`);
  console.log(`Compiler: ${compilerversion} · evmVersion paris · optimizer 200`);
  console.log(`Constructor args (token, operator): ${USDC}, ${operator}`);
  console.log('');
  console.log('--- Tron/Nile (Tronscan) — paste on https://nile.tronscan.org/#/contract/<addr>/code → Verify:');
  const tronAddr = (() => { try { return JSON.parse(readFileSync(STATE, 'utf8')).vaults?.['USDT (Tron)']?.address; } catch { return '<tron gateway>'; } })();
  console.log(`  contract: ${tronAddr}`);
  console.log(`  name DeviantBitcoinCashGateway · compiler ${compilerversion.replace('v', '')} · optimizer Yes/200 · evmVersion istanbul · license MIT`);
  console.log(`  source: contracts/evm/DeviantBitcoinCashGateway.sol (single file, paste whole)`);
  console.log('');

  const KEY = process.env.ETHERSCAN_API_KEY;
  if (!KEY) {
    console.log('ETHERSCAN_API_KEY not set — cannot submit Sepolia verification automatically.');
    console.log('Get a free key at https://etherscan.io/apis, then:');
    console.log(`  ETHERSCAN_API_KEY=xxxx node scripts/verify-gateway.mjs ${address}`);
    console.log('(Or verify manually with the settings above: standard-JSON input, contract name DeviantBitcoinCashGateway.)');
    return;
  }

  const body = new URLSearchParams({
    chainid: '11155111', module: 'contract', action: 'verifysourcecode', apikey: KEY,
    contractaddress: address, sourceCode: JSON.stringify(standardJson), codeformat: 'solidity-standard-json-input',
    contractname: CONTRACT, compilerversion, constructorArguements: ctorArgs,
  });
  const sub = await (await fetch('https://api.etherscan.io/v2/api', { method: 'POST', headers: { 'content-type': 'application/x-www-form-urlencoded' }, body })).json();
  console.log('submit:', sub);
  if (sub.status !== '1') { console.log('submission rejected (already verified? bad key?)'); return; }
  const guid = sub.result;
  for (let i = 0; i < 20; i++) {
    await new Promise((r) => setTimeout(r, 5000));
    const chk = await (await fetch(`https://api.etherscan.io/v2/api?chainid=11155111&module=contract&action=checkverifystatus&guid=${guid}&apikey=${KEY}`)).json();
    console.log('status:', chk.result);
    if (String(chk.result).includes('Verified') || chk.status === '1') { console.log('✓ VERIFIED on Sepolia Etherscan'); return; }
    if (String(chk.result).includes('Fail')) { console.log('verification failed'); return; }
  }
}
main().catch((e) => { console.error('FAILED:', e?.message ?? e); process.exitCode = 1; });