CursorFile.js

const fs = require('fs');
const sleep = require('./sleep')

module.exports = class CursorFile {
  constructor(path, delay = 300) {
    this.commands = fs.readFileSync(path).toString().split("\n")
    this.currentPosition = 0
    this.delay = delay
  }

  async ready() {
    return
  }

  async goToStart() {
    this.currentPosition = 0
  }

  async read() {
    return this.commands[this.currentPosition].split(':')
  }

  async next() {
    await sleep(this.delay)
    this.currentPosition++

    return !(this.currentPosition > this.commands.length - 1)
  }

  async previous() {
    await sleep(this.delay)
    this.currentPosition--
  }

  halt() {
    throw new Error("Something bad happened!")
  }
}