import wx from '../utils/wx';
import event from '../common/event';
import Promise from '../vendors/es6-promise';
import accountModel from '../models/account/index';
import config from '../common/config';

/**
 * 用户未授权-发送验证码
 * @param mobile 手机号
 * @param area 国家码
 * @param degrees 验证码
 */
function sendVerifyCode(area, mobile, degrees) {
  return accountModel.sendSms(area, mobile, degrees);
}

/**
 * 用户已授权-发送验证码`
 * @param mobile 手机号
 * @param area 国家码
 * @param degrees 验证码
 */
function sendVerifyCodeWithUnionId(area, mobile, degrees) {
  return accountModel.sendCodeByMiniApp(area, mobile, getApp().getOpenID(), degrees);
}

/**
 * 是否需要验证码
 */
function isNeedImgCheck() {
  return accountModel.isNeedImgCheck();
}

/**
 * 获取验证码按钮
 * @param area
 * @param mobile
 * @param degrees 验证码
 * @returns {*}
 */
function getVerifyCode(area, mobile, degrees) {
  let app = getApp();

  // disableAutoLogin为用户退出，则直接走手机验证码登录接口
  if (!app.globalData.unionID || app._getSync('disableAutoLogin')) {
    return sendVerifyCode(area, mobile, degrees);
  }

  return sendVerifyCodeWithUnionId(area, mobile, degrees);
}

/**
 * 用户未授权-直接登录
 * @param area 国家码
 * @param mobile 手机号
 * @param verifyCode 验证码
 */
function autoSignin(area, mobile, verifyCode) {
  return accountModel.autoSignIn(mobile, verifyCode, area);
}

/**
 * 用户已授权-校验验证码
 * @param area 国家码
 * @param mobile 手机号
 * @param verifyCode 验证码
 */
function checkVerifyCode(area, mobile, verifyCode) {
  return accountModel.bindMiniapp(getApp().globalData.unionID, mobile, verifyCode, area);
}

/**
 * 验证手机号
 * @param area
 * @param mobile
 * @param verifyCode
 */
function bindMobileAction(area, mobile, verifyCode) {
  let app = getApp();

  // disableAutoLogin为用户退出，则直接走手机验证码登录接口
  if (!app.globalData.unionID || app._getSync('disableAutoLogin')) {
    return autoSignin(area, mobile, verifyCode);
  }

  return checkVerifyCode(area, mobile, verifyCode);
}

/**
 * 判断微信用户是否绑定
 * @param unionID
 * @param nickName
 * @returns {Promise.<TResult>|*}
 */
function wechatUserIsBind(unionID, nickName) {
  let app = getApp();

  return accountModel.wechatUserIsBind(unionID, nickName).then(data => {
    wx.hideLoading();
    if (data.data &&
      data.data.is_bind &&
      data.data.is_bind === 'Y') { // 已经绑定
      let userInfo = {};

      userInfo.is_bind = data.data.is_bind;
      userInfo.mobile = data.data.mobile;
      userInfo.ssouid = data.data.ssouid;
      userInfo.uid = data.data.uid;
      userInfo.sessionKey = data.data.session_key;

      app._removeSync('disableAutoLogin');
      app.setUserInfo(userInfo);
      app.setSessionKey(userInfo.sessionKey);

      // 登录成功回调
      event.emit('yas-login-type-report', {LOGIN_TYPE: 4});

      return Promise.resolve({
        code: 10003,
        data: userInfo,
        message: '微信用户已绑定手机号'
      });
    } else {
      return Promise.resolve({
        code: 10004,
        message: '微信用户未绑定手机号'
      });
    }
  });
}

/**
 * 获取unionID、如果用户拒绝授权则无法获得unionID<废弃>
 * @param srd_session
 * @param showMsg
 * @returns {Promise.<T>}
 */
function getUnionID(srd_session, showMsg) {
  let app = getApp();
  let nickName;

  return wx.getSetting().then(rset => {
    if (rset.authSetting['scope.userInfo']) {
      return wx.getUserInfo().then(res => {
        let userInfo = res.userInfo;

        nickName = userInfo.nickName;
        event.emit('enable-tap-login');
        return accountModel.decodeUserInfo(srd_session, res.encryptedData, res.iv);
      });
    }
    return rset;
  }).then(data => {
    if (data && data.data && data.data.union_id) {
      app.setUnionID(data.data.union_id);
      return wechatUserIsBind(data.data.union_id, nickName);
    }
  }).catch(() => {
    let msg = {
      succeed: false,
      message: '使用微信小程序登录需要微信授权，您已经拒绝了该请求，请删除小程序重新进入。'
    };

    if (showMsg) {
      msg.code = 10001;
    }

    event.emit('enable-tap-login');
    return Promise.reject(msg);
  });
}

/**
 * 微信授权登录
 * @param showMsg
 * @returns {Promise.<T>}
 */
function wechatAuthLogin() {
  let app = getApp();

  return wx.login().then(res => {
    console.log('wechatAuthLogin:', res);
    if (res.code) {
      return accountModel.wechatMiniAppLogin(res.code);
    }
  }).then(data => {
    console.log('wechatAuthLogin.then=>', data);
    if (data.code !== 200) {
      return Promise.reject({
        succeed: false,
        message: data.message
      });
    } else {
      data = data.data;
      app.setOpenID(data.openid);
      app.setWechatThirdSession(data.srd_session);

      if (data.unionid) {
        app.setUnionID(data.unionid);
        event.emit('enable-tap-login');
        return wechatUserIsBind(data.unionid, '');
      } else {
        // 如果没有返回unionID，则把原来的清空
        wx.setStorage({
          key: 'unionID',
          data: ''
        });
      }

      // return getUnionID(data.srd_session, showMsg);
    }
  }).catch(err => {
    event.emit('enable-tap-login');
    return Promise.reject(err);
  });
}

/**
 * [跳转手动登录页面]
 * @return {[type]} [description]
 */
function tapGoLogin() {
  return wx.navigateTo({
    url: '/pages/account/bindMobile',
  });
}

/**
 * 验证sessionKey是否过期
 * @returns {*}
 */
function verifySessionKey() {
  return accountModel.verify();
}

/**
 * 自动绑定微信小程序
 * @param mobile
 * @param areaCode
 * @constructor
 */
function _bindMiniAppByAuto(mobile, areaCode) {
  return accountModel.bindMiniAppByAuto(getApp().globalData.unionID, mobile, areaCode);
}

/**
 * 解密获取微信用户绑定的手机号
 * @param iv
 * @param encryptedData
 */
function decodePhoneNumber(iv, encryptedData) {
  return accountModel.decodeUserInfo(getApp().globalData.thirdSession, encryptedData, iv);
}

/**
 * 获取微信手机号码
 * @param e
 */
function getPhoneNumber(e) {
  let app = getApp();
  let router = global.router;

  if (e.detail.errMsg === 'getPhoneNumber:ok') {
    let phoneNumber;
    let countryCode;

    wx.showLoading();
    decodePhoneNumber(e.detail.iv, e.detail.encryptedData).then(res => {
      phoneNumber = res.data.phoneNumber;
      countryCode = res.data.countryCode;

      if (res.data.phoneNumber && res.data.countryCode) {
        return _bindMiniAppByAuto(res.data.phoneNumber, res.data.countryCode);
      }
      return {};
    }).then(res => {
      wx.hideLoading();
      if (res.code === 200) {
        let userInfo = {};

        userInfo.uid = res.data.uid;
        userInfo.is_bind = res.data.is_bind || '';
        userInfo.mobile = res.data.profile;
        userInfo.ssouid = res.data.ssouid;
        userInfo.sessionKey = res.data.session_key;

        app._removeSync('disableAutoLogin');
        app.setUserInfo(userInfo);
        app.setSessionKey(userInfo.sessionKey);

        if (e.currentTarget && !e.currentTarget.dataset.notJump) {
          wx.navigateBack(); // 先执行这个，然后在执行event
        }

        event.emit('user-login-success');
        event.emit('yas-user-register-success', {REG_TYPE: 5});// 注册成功调用埋点事件
        wx.showToast({
          icon: 'none',
          title: '手机号授权成功！\r\n为享受更多权益，已为您注册有货会员！',
          duration: 3000
        });
      } else {
        return wx.showModal({
          title: '提示',
          content: res.message || '该手机已是yoho账户，请使用手机号动态登录'
        });
      }
    }).then(res => {
      if (res && res.confirm) {
        router.goUrl(`${config.MINI_APP_DOMAIN}/pages/account/bindMobile?phone=${phoneNumber}&area=${countryCode}`);
      }
    }).catch(() => {
      router.goUrl(`${config.MINI_APP_DOMAIN}/pages/account/bindMobile?phone=${phoneNumber}&area=${countryCode}`);
    });
  } else {
    wx.navigateTo({
      url: '/pages/account/bindMobile'
    });
  }
}

function getUserInfo(e) {
  let app = getApp();

  if (e.detail.errMsg !== 'getUserInfo:ok') {
    return Promise.reject({
      code: 500,
      message: 'getUserInfo authorize fail'
    });
  }

  console.log(e.detail);

  wx.showLoading();
  event.emit('enable-tap-login');

  return accountModel.decodeUserInfo(
    app.getWechatThirdSession(),
    e.detail.encryptedData,
    e.detail.iv
  ).then(res => {
    if (res.data && res.data.union_id) {
      app.setUnionID(res.data.union_id);
      return wechatUserIsBind(res.data.union_id, e.detail.userInfo.nickName);
    }
    return res;
  }).then(res => {
    wx.hideLoading();
    if (res.code === 10003) { // 微信号已绑定手机号
      event.emit('user-login-success');
      wx.showToast({
        icon: 'none',
        title: '登录成功！',
        duration: 3000
      });
    } else if (res.code === 10004) { // 微信用户未绑定手机号
      event.emit('change-login-status', {
        text: '绑定有货帐号'
      });
      wx.showToast({
        icon: 'none',
        title: '该微信号未绑定yoho手机账号，请再次单击绑定手机号',
        duration: 3000
      });
    }

    // 登录成功或者失败回调
    event.emit('user-login-callback', res);
    return res;
  }).catch(err => {
    console.log(err, 'err:getUserInfo--');
    wx.hideLoading();
  });
}

/**
 * [获取登录按钮类型]
 * @return {[type]} [description]
 */
function getLoginButtonType() {
  let app = getApp() || {};

  if (app && app.getUid()) {
    return ''; // 已经是登录状态，合法用户
  }

  let isUnionID = app && app.globalData.unionID && app.globalData.userInfo.head_img;// 如果有unionID情况
  let isPhoneNumber = isUnionID ? !(app && app.getUid()) : false; // 如果有unionID且没有uid，可以获取手机号自动绑定登录

  if (app._getSync('disableAutoLogin')) { // 手动退出，走手机号登录页面
    return 'tapGoLogin';
  } else if (!isUnionID) {
    event.emit('change-login-status', {
      text: '点击登录'
    });
    return 'getUserInfo';
  } else if (isPhoneNumber) {
    event.emit('change-login-status', {
      text: '绑定有货帐号'
    });
    return 'getPhoneNumber';
  }

  return ''; // 已经是登录状态，合法用户
}

module.exports = {
  wechatAuthLogin,
  isNeedImgCheck,
  getVerifyCode,
  bindMobileAction,

  // tapToLogin, // <废弃>
  tapGoLogin,
  verifySessionKey,
  getPhoneNumber,
  getUserInfo,
  getLoginButtonType
};