var ble = require('../../services/ble')
var i18n = require('../../i18n/index')

Page({
  data: {
    statusBarHeight: 44,
    battery: 0,
    connected: false,
    reconnecting: false
  },

  onShow: function () {
    i18n.bind(this)
  },

  onBack: function () {
    wx.navigateBack({
      fail: function () {
        wx.reLaunch({ url: '/pages/index/index' })
      }
    })
  },

  onLoad: function () {
    var app = getApp()
    this.setData({
      statusBarHeight: app.globalData.statusBarHeight,
      connected: ble.isConnected()
    })
    var device = app.globalData.currentDevice || {}
    this.setData({ battery: device.battery || 0 })
  },

  onNext: function () {
    if (!ble.isConnected()) {
      wx.showToast({ title: i18n.t('common.deviceNotConnected'), icon: 'none' })
      return
    }
    wx.redirectTo({
      url: '/pages/treatment-setup/treatment-setup'
    })
  },

  onRetry: function () {
    var self = this
    if (self.data.reconnecting) return
    if (ble.isConnected()) {
      self.setData({ connected: true })
      return
    }
    self.setData({ connected: false, reconnecting: true })
    ble.disconnect()
    setTimeout(function () {
      ble.startScan({
        onFound: function () {},
        onConnected: function () {
          clearTimeout(self._reconnectTimer)
          self.setData({ connected: true, reconnecting: false })
          wx.showToast({ title: i18n.t('wearCheck.connectSuccess'), icon: 'success' })
        },
        onError: function (err) {
          clearTimeout(self._reconnectTimer)
          self.setData({ reconnecting: false })
          wx.showToast({ title: err.msg || i18n.t('wearCheck.connectFailed'), icon: 'none' })
        }
      })
      self._reconnectTimer = setTimeout(function () {
        ble.stopScan()
        self.setData({ reconnecting: false })
        wx.showToast({ title: i18n.t('wearCheck.searchTimeout'), icon: 'none' })
      }, 5000)
    }, 500)
  },

  onUnload: function () {
    clearTimeout(this._reconnectTimer)
    ble.stopScan()
  }
})