import { isEmpty } from 'lodash';
import third from '@/sheep/api/third';
import $store from '@/sheep/store';

let sessionId = uni.getStorageSync('sessionId');
let subscribeEventList = [];

// 加载微信小程序
function load() {
  checkUpdate();
  // const sessionStatus = await checkSession();
  // 小程序的接口改动太频繁了 强制每次进入都重新获取
  const sessionStatus = false;
  if (!sessionStatus) {
    getSessionId();
  }
  getSubscribeTemplate();
}

// 微信小程序授权登陆
const login = async (e) => {
  return new Promise(async (resolve, reject) => {
    if (e.errMsg !== 'getPhoneNumber:ok') {
      resolve(false);
      return;
    }

    const { error } = await third.wechat.login({
      platform: 'miniProgram',
      shareInfo: uni.getStorageSync('shareLog') || {},
      payload: encodeURIComponent(
        JSON.stringify({
          sessionId: uni.getStorageSync('sessionId'),
          code: e.code,
          iv: e.iv,
          encryptedData: e.encryptedData,
        }),
      ),
    });

    if (error === 0) {
      resolve(true);
    }

    if (error === -1) {
      getSessionId();
    }
    resolve(false);
  });
};

// 微信小程序绑定
const bind = () => {
  return new Promise(async (resolve, reject) => {
    const loginRes = await third.wechat.bind({
      platform: 'miniProgram',
      payload: encodeURIComponent(
        JSON.stringify({
          sessionId: uni.getStorageSync('sessionId'),
        }),
      ),
    });

    if (loginRes.error === -1) {
      getSessionId();
    } else if (loginRes.error === 0) {
      resolve(true);
    } else {
      reject(false);
    }
  });
};

// 微信小程序解除绑定
const unbind = async () => {
  const { error } = await third.wechat.unbind({
    platform: 'miniProgram',
  });
  return Promise.resolve(!error);
};

// 获取最新sessionId
const getSessionId = async () => {
  // 获取code
  let code = '';
  const loginResult = await uni.login();
  if (loginResult.errMsg === 'login:ok') {
    code = loginResult.code;
  } else {
    getSessionId();
    return false;
  }

  const { error, data } = await third.wechat.getSessionId({
    platform: 'miniProgram',
    payload: encodeURIComponent(
      JSON.stringify({
        code,
        auto_login: !!($store('app').platform.auto_login && !$store('user').isLogin),
      }),
    ),
  });
  if (error === 0) {
    uni.setStorageSync('sessionId', data.session_id);
    return true;
  }
  return false;
};

// 检查sessionId是否可用
const checkSession = () => {
  return new Promise((resolve, reject) => {
    if (!sessionId) {
      return resolve(false);
    }
    uni.checkSession({
      success() {
        return resolve(true);
      },
      fail() {
        uni.removeStorageSync('sessionId');
        return resolve(false);
      },
    });
  });
};

// 小程序更新
const checkUpdate = async (silence = true) => {
  if (uni.canIUse('getUpdateManager')) {
    const updateManager = uni.getUpdateManager();
    updateManager.onCheckForUpdate(function (res) {
      // 请求完新版本信息的回调
      if (res.hasUpdate) {
        updateManager.onUpdateReady(function () {
          uni.showModal({
            title: '更新提示',
            content: '新版本已经准备好，是否重启应用？',
            success: function (res) {
              if (res.confirm) {
                // 新的版本已经下载好，调用 applyUpdate 应用新版本并重启
                updateManager.applyUpdate();
              }
            },
          });
        });
        updateManager.onUpdateFailed(function () {
          // 新的版本下载失败
          // uni.showModal({
          //   title: '已经有新版本了哟~',
          //   content: '新版本已经上线啦，请您删除当前小程序，重新搜索打开~',
          // });
        });
      } else {
        if (!silence) {
          uni.showModal({
            title: '当前为最新版本',
            showCancel: false,
          });
        }
      }
    });
  }
};

// 绑定用户手机号
const bindUserPhoneNumber = (e) => {
  return new Promise(async (resolve, reject) => {
    const { error } = await third.wechat.bindUserPhoneNumber({
      platform: 'miniProgram',
      payload: encodeURIComponent(
        JSON.stringify({
          code: e.code,
          iv: e.iv,
          encryptedData: e.encryptedData,
        }),
      ),
    });
    if (error === 0) {
      resolve(true);
    }
    resolve(false);
  });
};

// 获取订阅消息模板
async function getSubscribeTemplate() {
  const { error, data } = await third.wechat.subscribeTemplate();
  if (error === 0) {
    subscribeEventList = data;
  }
}

// 订阅消息
function subscribeMessage(event) {
  let tmplIds = [];
  if (typeof event === 'string') {
    tmplIds.push(subscribeEventList[event]);
  }
  if (typeof event === 'object') {
    event.forEach((item) => {
      if (typeof subscribeEventList[item] !== 'undefined') tmplIds.push(subscribeEventList[item]);
    });
  }
  if (tmplIds.length === 0) return;

  uni.requestSubscribeMessage({
    tmplIds,
    fail: (err) => {
      console.log(err);
    },
  });
}

export default {
  load,
  login,
  bind,
  unbind,
  checkUpdate,
  bindUserPhoneNumber,
  subscribeMessage,
};