问在Outlook中触发console.log事件后如何实现ItemSend

EN

<ExtensionPoint xsi:type="Events">
  <Event Type="ItemSend" FunctionExecution="synchronous" FunctionName="itemSendHandler" />
</ExtensionPoint>

import { updateEventMetadataToServer, getUserCktId } from './cktApi.js'
import { initializeForm, fetchEventDataFromOutlook, fetchEventDataFromServer, setMsgOnFormConsole } from './form.js'
import { storeEventMetadata, loadEventMetadata, loadCustomProperty } from './outlookApi.js'

window.itemSendHandler = itemSendHandler 

test1 = 1 // for debug
function itemSendHandler (event) {
  fetchDataFromOutlookAndSubmitOrUpdateEventToCkt((err) => {
    if (err) {
      Office.context.mailbox.item.notificationMessages.replaceAsync('NoSend', { type: 'errorMessage', message: err.message })
      setTimeout(() => { event.completed({ allowEvent: false }) }, 3000)
    } else {
      const message = {
        type: Office.MailboxEnums.ItemNotificationMessageType.InformationalMessage,
        message: 'Event submitted/updated to CKT' + test1,
        icon: 'Icon.80x80',
        persistent: true
      }
      Office.context.mailbox.item.notificationMessages.replaceAsync('action', message)
      setTimeout(() => { event.completed({ allowEvent: true }) }, 10000)
    }
  })
}

function fetchDataFromOutlookAndSubmitOrUpdateEventToCkt (_callback) {
  const callback = (err) => {
    if (typeof _callback === 'function') {
      _callback(err)
    }
  }

  fetchEventDataFromOutlook((err) => {
    if (err) {
      console.error('There was some error fetching data from Outlook:', err)
      callback(Error('There was some error fetching data from Outlook to CKT Addin'))
    } else {
      console.success('Data fetched from Outlook assigned to form')
      test1 = 20
      loadEventMetadata((metadata) => {
        console.log('METADATA loded from Outlook: ', metadata)
        test1 = JSON.stringify(metadata) + ''
        submitUpdateEvent(metadata, (err) => {
          if (err) {
            console.error('There was an error on submitUpdateEvent', err)
            callback(Error('There was some error submitting/updating the event to CKT server'))
          } else {
            console.success('Data submited/updated to server')
            callback()
          }
        })
      })
    }
  })
}