master.js

const Track = require('./track')


class Premaster extends Track {
  constructor(source, opts={}) {
    super(source, opts)
    if (opts.version) {
      this.version = opts.version
    }
  }
}

class Master extends Track {
  constructor(source, opts={}) {
    super(source, opts)

    this.revision = null

    this.parent = null

    if (opts.parent) {
      if (opts.parent instanceof Track) {
        this.parent = opts.parent
      } else {
        throw new Error(`Invalid opts.parent: must be an instance of bap.Track`)
      }
    }

    if (this.revision) {
      this.revision = revision
    }
  }

  compare (cb) {
    if (!this.parent) cb(new Error(`No parent, add one to the Master first.`))
    return {
      peak: this.stats.peak.db - this.parent.stats.peak.db,
      rms: this.stats.rms.db - this.parent.stats.rms.db,
    }
  }
}

module.exports = { Master, Premaster }