config.js

const { ConfigValidationError } = require('./config-validation-error')

class Config {
  constructor (environmentVariables) {
    this.fluxClientId = environmentVariables.FLUX_CLIENT_ID
    this.fluxClientSecret = environmentVariables.FLUX_CLIENT_SECRET
    this.fluxAccessTokenRetryPeriod =
      parseInt(environmentVariables.FLUX_PUBLIC_KEY_POLL_INTERVAL, 10) ||
      86400000
    this.fluxApiUrlBase =
      environmentVariables.FLUX_API_URL_BASE || 'https://api.test.tryflux.com'
    this.fluxApiWebhooksBase =
      environmentVariables.FLUX_API_WEBHOOKS_URL_BASE ||
      'https://webhooks.test.tryflux.com'
    this.httpsRequestTimeout =
      environmentVariables.HTTPS_REQUEST_TIMEOUT || 120000
    this.webserverPort = environmentVariables.PORT || 80
    this.apiRequestTimeout =
      parseInt(environmentVariables.PUBLIC_API_REQUEST_TIME_OUT, 10) || 120000
  }

  isConfigValid () {
    const errors = []
    if (!this.fluxClientId && !this.fluxClientSecret) {
      errors.push('FLUX_CLIENT_ID or FLUX_CLIENT_SECRET')
    }
    if (errors.length > 0) {
      throw new ConfigValidationError(
        `Missing the following environment variables: ${errors.join(', ')}`
      )
    }
    return true
  }
}

module.exports = {
  Config
}