startup.js

const { LND, Eclair } = require('./backend')

require('dotenv').config()

const startup = () => {
  const requiredKeys = ['LIGESS_USERNAME', 'LIGESS_DOMAIN', 'LIGESS_LN_BACKEND']

  checkKeys(requiredKeys)

  const backend = process.env.LIGESS_LN_BACKEND

  switch (backend) {
    case LND:
      _lndCheck()
      break
    case Eclair:
      _eclairCheck()
      break
  }
}

const _lndCheck = () => {
  const requiredKeys = ['LIGESS_LND_REST', 'LIGESS_LND_MACAROON']
  checkKeys(requiredKeys)
  if (!process.env.LIGESS_LND_REST.startsWith('https:')) {
    console.error('Env variable LIGESS_LND_REST only supports https protocol')
  } 
}

const _eclairCheck = () => {
  const requiredKeys = ['LIGESS_ECLAIR_REST', 'LIGESS_ECLAIR_PASSWORD']
  checkKeys(requiredKeys)
}

const checkKeys = (keys) => {
  for (const key of keys) {
    if (!process.env[key]) {
      console.error(`Env variable ${key} is not defined`)
      process.exit(1)
    }
  }
}

module.exports = { startup }