const cloud = require('wx-server-sdk')
const request = require('request')

cloud.init()

const db = cloud.database()
const _ = db.command
const $ = db.command.aggregate

/**
 * 返回用户信息
 * @param {*} loginname
 * @param {*} username
 */
const getUserInfo = (loginname, username) => {
  return new Promise((resolve, reject) => {
    request.post('https://zhihuigonghui.com.cn/platform/fitnessWalk/login', {
      form: {
        loginname,
        username
      }
    }, function (err, resp, body) {
      resolve(JSON.parse(body))
    })
  })
}

const hasRecord = async (loginname, username) => {
  const {
    data
  } = await db.collection("login_record").where({
    loginname,
    username
  }).limit(1).get()
  return data.length ? data[0] : false
}

exports.main = async (event, context) => {

  const {
    loginname,
    username
  } = event

  const wxContext = cloud.getWXContext()

  const record = await hasRecord(loginname.toUpperCase(), username)

  if (record && record.openid != wxContext.OPENID) {
    return {
      success: false,
      msg: '该账号已与其他微信绑定，如需重置，请与工会管理员联系！'
    }
  } else if (record && record.openid == wxContext.OPENID) {
    const {
      code,
      data
    } = await getUserInfo(loginname, username)
    if (code == 0 && Object.keys(data).length != 0) {
      data.roles = data.roles ? data.roles.split(',') : []

      await db.collection("login_record").doc(record._id).update({
        data: {
          data
        }
      })

      return {
        success: true,
        msg: '登录成功',
        data
      }
    }

    return {
      success: true,
      msg: '登录成功',
      data: record.data
    }
  }

  const {
    code,
    data
  } = await getUserInfo(loginname, username)

  if (code == 0 && Object.keys(data).length != 0) {

    data.roles = data.roles ? data.roles.split(',') : []

    await db.collection("login_record").add({
      data: {
        loginname: loginname.toUpperCase(),
        username: username,
        openid: wxContext.OPENID,
        data
      }
    })

    return {
      success: true,
      msg: '登录成功',
      data
    }
  }

  return {
    success: false,
    msg: '如提示姓名与工号不匹配，请您检查是否输入正确或带有空格后再试，如有需要请联系管理员'
  }
}