// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS101: Remove unnecessary use of Array.from
 * DS102: Remove unnecessary code created because of implicit returns
 * DS205: Consider reworking code to avoid use of IIFEs
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
const app = require('../../../../app')
require('@overleaf/logger').logger.level('fatal')

module.exports = {
  running: false,
  initing: false,
  callbacks: [],
  ensureRunning(callback) {
    if (callback == null) {
      callback = function () {}
    }
    if (this.running) {
      return callback()
    } else if (this.initing) {
      return this.callbacks.push(callback)
    }
    this.initing = true
    this.callbacks.push(callback)
    app.listen(3003, '127.0.0.1', error => {
      if (error != null) {
        throw error
      }
      this.running = true
      return (() => {
        const result = []
        for (callback of Array.from(this.callbacks)) {
          result.push(callback())
        }
        return result
      })()
    })
  },
}