nandenjin/gmail-to-slack

import { gmailUtil } from './gmailUtil'
import { slackUtil } from './slackUtil'

/**
 * Handle time-based event execution
 */
export function main(): void {
  const errors: Error[] = []
  const threads = gmailUtil.getTargetThreads()

  for (let i = threads.length - 1; 0 <= i; i--) {
    const thread = threads[i]
    const { subject, body, from } = gmailUtil.getThreadContent(thread)

    console.log(`Forwarding the thread... : "${subject}"`)

    try {
      // Post to Slack for each thread
      slackUtil.postMessage(slackUtil.composeMessage(from, subject, body))
    } catch (e) {
      console.error('Failed to forwarding!')
      console.error(e)

      errors.push(e)

      continue
    }

    // Remove label from thread
    gmailUtil.resolveThread(thread)
  }

  // Finish with "error" state when there is at least one error
  if (errors.length > 0) {
    throw new Error('Failed to forwarding!')
  }
}

/**
 * Handle HTTP GET request
 */
export function doGet(): GoogleAppsScript.HTML.HtmlOutput {
  return HtmlService.createHtmlOutputFromFile('config')
}