carvent/index.js

const SETTINGS = require("./settings.js")

const { churchtoolsClient, activateLogging, LOG_LEVEL_INFO, errorHelper } = require('@churchtools/churchtools-client');
const axiosCookieJarSupport = require('axios-cookiejar-support');
const tough = require('tough-cookie');
const fs = require('fs');

function initChurchToolsClient() {
  churchtoolsClient.setCookieJar(axiosCookieJarSupport.wrapper, new tough.CookieJar());
  churchtoolsClient.setBaseUrl(SETTINGS.BASEURL);
  // Logging can be activated to either LOG_LEVEL_NONE (no logging at all, default),
  // LOG_LEVEL_DEBUG (outputs every request and response including request/response data)
  // LOG_LEVEL_INFO (outputs every request and response, but only method and URL) or
  // LOG_LEVEL_ERROR (outputs only errors).
  activateLogging(LOG_LEVEL_INFO);
}

//
function login() {
  // if we have a login token, we use this
  if (SETTINGS.TOKEN) {
    churchtoolsClient.setUnauthorizedInterceptor(SETTINGS.TOKEN);
    // we call /api/contactlabels here, as an example. Any api call will trigger an automatic login with TOKEN
    return churchtoolsClient.get('/contactlabels')
      .then(() => {
        console.log('Login with token successful.');
        return true;
      });
  }

  // no login token => use username / password
  return churchtoolsClient.post('/login', {
    username: SETTINGS.USERNAME,
    password: SETTINGS.PASSWORD
  }).then(() => {
    console.log('Login successful.');
    return true;
  });
}

async function mergeEventSongs(event) {
  const dt = event.startDate
  const date = dt.substring(0, dt.indexOf('T'))
  try {
    fs.mkdirSync(date)
  } catch(e) { console.log(e); }
  return churchtoolsClient.get(`/events/${event.id}/agenda`)
    .then(agenda =>
      agenda.items
        .map(item => item.song)
        .filter(Boolean)
    ).then(songs =>
      songs.map(songItem =>
        churchtoolsClient.get(`/songs/${songItem.songId}`)
          .then(song => song.arrangements.find(a => a.id == songItem.arrangementId))
        )
    ).then(result =>
      Promise.allSettled(result)
    ).then(result =>
      result.map(song => song.value.files.find(f => f.name.includes("Akkorde")))
            .map(f =>
              churchtoolsClient.get(f.fileUrl).then(file => {
                  filename = `${date}/${f.name}`
                  fs.createWriteStream(filename).write(file)
                  return filename
                })
            )
    ).then(result =>
      Promise.allSettled(result)
    ).then(result => {
      const PDFMerger = require('pdf-merger-js');
      const merger = new PDFMerger();
      return new Promise(async (resolve) => {
        for(const file of result) {
          await merger.add(file.value);
        }
        const merged = `${date}/${date}-songs-akkorde.pdf`
        await merger.save(merged);
        const mergedPdfBuffer = await merger.saveAsBuffer();
        var data = new FormData();
        data.append("files", [mergedPdfBuffer])
        resolve(await churchtoolsClient.post(`/files/service/${event.id}`, data))
      })
    })
}

initChurchToolsClient();
login().then(() => {
  churchtoolsClient.get('/whoami').then(whoAmI => {
    console.log(`Hello ${whoAmI.firstName}!`);
  });
  return churchtoolsClient.get('/events')
}).then(events => {
  const event = events[3];
  return mergeEventSongs(event);
}).then(result => {
  console.log(result)
}).catch(error => {
  // getTranslatedErrorMessage returns a human readable translated error message
  // from either a full response object, response data or Exception or Error instances.
  console.error(errorHelper.getTranslatedErrorMessage(error));
});