index.js

import { decodeJwt, parseJwt } from '@cfworker/jwt'
import bodyParser from '@zentered/issue-forms-body-parser'
import { add } from 'date-fns'
import { zonedTimeToUtc } from 'date-fns-tz'

export default {
  async fetch(request, env) {
    const oicd = request.headers.get('Authorization')
    const decoded = decodeJwt(oicd)

    const issuer = 'https://token.actions.githubusercontent.com'
    const audience = decoded.payload.aud

    const parsedJwt = await parseJwt(oicd, issuer, audience)

    if (!parsedJwt.valid) {
      console.error(parsedJwt.reason)
      return
    }

    const data = await request.json()
    const { serverId, timeZone, payload } = data
    const parsedBody = await bodyParser(payload.issue.body)

    // TODO: simplify date handling
    const startTime = parsedBody.time
    const startDate = parsedBody.date
    const duration = parsedBody.duration?.duration
    const content = parsedBody['event-description']
    const location = parsedBody.location
    const zonedDateTime = `${startDate.date}T${startTime.time}`

    const utcDate = zonedTimeToUtc(zonedDateTime, timeZone)
    const utcEndDate = add(utcDate, duration)

    // TODO: adjust entity type and privacy level depending on online/offline events from issue body
    const discordEventData = {
      name: payload.issue.title,
      description: content.text,
      scheduled_start_time: utcDate.toJSON(),
      scheduled_end_time: utcEndDate.toJSON(),
      privacy_level: 2,
      entity_type: 3,
      entity_metadata: {
        location: location.text
      }
    }

    console.log(discordEventData)

    const discordRequestOptions = {
      method: 'POST',
      headers: {
        'content-type': 'application/json;charset=UTF-8',
        Authorization: `Bot ${env.DISCORD_TOKEN}`
      },
      body: JSON.stringify(discordEventData)
    }

    // console.log(JSON.stringify(discordEventData))

    // TODO: response is always {}, should output errors
    const apiResponse = await fetch(
      `${env.DISCORD_API_URL}/guilds/${serverId}/scheduled-events`,
      discordRequestOptions
    )

    const { status, body } = apiResponse

    console.log(status)
    console.log(body)

    const response = await apiResponse.json()

    console.log(response)

    return new Response('OK')
  }
}