const WXAPI = require('apifm-wxapi')
import Dialog from '@vant/weapp/dialog/dialog'

async function checkSession(){
 return new Promise((resolve, reject) => {
 wx.checkSession({
 success() {
 return resolve(true)
 },
 fail() {
 return resolve(false)
 }
 })
 })
}

async function bindSeller() {
 const token = wx.getStorageSync('token')
 const referrer = wx.getStorageSync('referrer')
 if (!token) {
 return
 }
 if (!referrer) {
 return
 }
 const res = await WXAPI.bindSeller({
 token,
 uid: referrer
 })
}

// 检测登录状态,返回 true / false
async function checkHasLogined() {
 const token = wx.getStorageSync('token')
 if (!token) {
 return false
 }
 const loggined = await checkSession()
 if (!loggined) {
 wx.removeStorageSync('token')
 return false
 }
 const checkTokenRes = await WXAPI.checkToken(token)
 if (checkTokenRes.code != 0) {
 wx.removeStorageSync('token')
 return false
 }
 return true
}

async function wxaCode(){
 return new Promise((resolve, reject) => {
 wx.login({
 success(res) {
 return resolve(res.code)
 },
 fail() {
 wx.showToast({
 title: '获取code失败',
 icon: 'none'
 })
 return resolve('获取code失败')
 }
 })
 })
}

async function login(page){
 const _this = this
 wx.login({
 success: function (res) {
 const componentAppid = wx.getStorageSync('componentAppid')
 if (componentAppid) {
 WXAPI.wxappServiceLogin({
 componentAppid,
 appid: wx.getStorageSync('appid'),
 code: res.code
 }).then(function (res) { 
 if (res.code == 10000) {
 // 去注册
 return;
 }
 if (res.code != 0) {
 // 登录错误
 wx.showModal({
 title: '无法登录',
 content: res.msg,
 showCancel: false
 })
 return;
 }
 wx.setStorageSync('token', res.data.token)
 wx.setStorageSync('uid', res.data.uid)
 _this.bindSeller()
 if ( page ) {
 page.onShow()
 }
 })
 } else {
 WXAPI.login_wx(res.code).then(function (res) { 
 if (res.code == 10000) {
 // 去注册
 return;
 }
 if (res.code != 0) {
 // 登录错误
 wx.showModal({
 title: '无法登录',
 content: res.msg,
 showCancel: false
 })
 return;
 }
 wx.setStorageSync('token', res.data.token)
 wx.setStorageSync('uid', res.data.uid)
 _this.bindSeller()
 if ( page ) {
 page.onShow()
 }
 })
 }
 }
 })
}

async function authorize() {
 return new Promise((resolve, reject) => {
 wx.login({
 success: function (res) {
 const code = res.code
 let referrer = '' // 推荐人
 let referrer_storge = wx.getStorageSync('referrer');
 if (referrer_storge) {
 referrer = referrer_storge;
 }
 // 下面开始调用注册接口
 const componentAppid = wx.getStorageSync('componentAppid')
 if (componentAppid) {
 WXAPI.wxappServiceAuthorize({
 code: code,
 referrer: referrer
 }).then(function (res) {
 if (res.code == 0) {
 wx.setStorageSync('token', res.data.token)
 wx.setStorageSync('uid', res.data.uid)
 resolve(res)
 } else {
 wx.showToast({
 title: res.msg,
 icon: 'none'
 })
 reject(res.msg)
 }
 })
 } else {
 WXAPI.authorize({
 code: code,
 referrer: referrer
 }).then(function (res) {
 if (res.code == 0) {
 wx.setStorageSync('token', res.data.token)
 wx.setStorageSync('uid', res.data.uid)
 resolve(res)
 } else {
 wx.showToast({
 title: res.msg,
 icon: 'none'
 })
 reject(res.msg)
 }
 })
 }
 },
 fail: err => {
 reject(err)
 }
 })
 })
}

function loginOut(){
 wx.removeStorageSync('token')
 wx.removeStorageSync('uid')
}

async function checkAndAuthorize (scope) {
 return new Promise((resolve, reject) => {
 wx.getSetting({
 success(res) {
 if (!res.authSetting[scope]) {
 wx.authorize({
 scope: scope,
 success() {
 resolve() // 无返回参数
 },
 fail(e){
 console.error(e)
 // if (e.errMsg.indexof('auth deny') != -1) {
 // wx.showToast({
 // title: e.errMsg,
 // icon: 'none'
 // })
 // }
 wx.showModal({
 title: '无权操作',
 content: '需要获得您的授权',
 showCancel: false,
 confirmText: '立即授权',
 confirmColor: '#e64340',
 success(res) {
 wx.openSetting();
 },
 fail(e){
 console.error(e)
 reject(e)
 },
 })
 }
 })
 } else {
 resolve() // 无返回参数
 }
 },
 fail(e){
 console.error(e)
 reject(e)
 }
 })
 }) 
}

module.exports = {
 checkHasLogined: checkHasLogined,
 wxaCode: wxaCode,
 login: login,
 loginOut: loginOut,
 checkAndAuthorize: checkAndAuthorize,
 authorize: authorize,
 bindSeller: bindSeller
}