module.exports = Tracker

var EventEmitter = require('events').EventEmitter
var inherits = require('inherits')

var common = require('../common')

inherits(Tracker, EventEmitter)

function Tracker (client, announceUrl) {
  var self = this
  EventEmitter.call(self)

  self.client = client
  self.announceUrl = announceUrl
  self.interval = null
  self.destroyed = false
}

Tracker.prototype.setInterval = function (intervalMs) {
  var self = this
  if (self.interval) return
  if (intervalMs == null) intervalMs = common.DEFAULT_ANNOUNCE_INTERVAL

  clearInterval(self.interval)

  if (intervalMs) {
    var update = self.announce.bind(self, self.client._defaultAnnounceOpts())
    self.interval = setInterval(update, intervalMs)
  }
}