'use strict'

const i2c = require('i2c-bus'),
  pA = require('bluebird').promisifyAll,
  pQ = require('promisqueue')

// TODO Create a Bus master class then BusRPi classes etc for actual hardware.

class Bus {
  constructor(busnum) {
    this.methods = pA(i2c.open(busnum, () => {}), { suffix: "_p" }) //,multiArgs: true})
    this.q = new pQ({ limit: 1 })
  }

  scan() { return this.bus.scan_p() }
  close() { return this.bus.close_p() }

  qAdd(job) { this.q.add(() => job) }

} // end of Bus Class

module.exports = {
  Bus
};