1import fs from 'fs'
2import { HDNodeWallet } from 'ethers'
3import { pathDownJoin } from '../../serverF/pathF.mts'
4import { secretsDir } from '../../serverF/secretsDirF.mts'
5import { assertDefined } from '../../sharedF/assertsF/assertDefinedF.mts'
6import { shortPtPath } from '../../serverF/pathF/absPathToPtPathF.mts'
7
8const donateEthwalSecretName = 'millionpx_ethwal'
9const donateEthwalSecretPath = pathDownJoin(secretsDir, donateEthwalSecretName)
10
11const getOrCreateMnemonic = ({createIfMissing = true} = {}) => {
12  try {
13    return fs.readFileSync(donateEthwalSecretPath, 'utf-8').trim()
14  } catch (err) {
15    if (/** @type {any} */ (err).code !== 'ENOENT') throw err
16    if (!createIfMissing) return null
17    const wallet = HDNodeWallet.createRandom()
18    const {mnemonic} = wallet
19    assertDefined(mnemonic, {walletAddr: wallet.address})
20    fs.mkdirSync(secretsDir, {recursive: true})
21    fs.writeFileSync(donateEthwalSecretPath, mnemonic.phrase, 'utf-8')
22    console.log(`Created new donate wallet secret at ${shortPtPath(donateEthwalSecretPath)}`)
23    return mnemonic.phrase
24  }
25}
26
27export const genDonateWallet = (opts) => {
28  const mnemonic = getOrCreateMnemonic(opts)
29  return mnemonic ? HDNodeWallet.fromPhrase(mnemonic) : null
30}
31
32export const genDonateEthPay = (opts) => {
33  const wallet = genDonateWallet(opts)
34  if (!wallet) return { ethPaymentAddr: null, ethPaymentAddrA: [] }
35  const ethPaymentAddr = wallet.address
36  return { ethPaymentAddr, ethPaymentAddrA: [ethPaymentAddr] }
37}
38