flickr.js

const router = require('express').Router()
// FLICKR
const FLICKR_API = require('../../settings/flickr.js')
const Flickr = require('flickr-sdk')
const flickr = new Flickr(FLICKR_API.key)
// FIREBASE
const admin = require('firebase-admin')
const serviceAccount = require('./../../settings/progressbar-cache-firebase-adminsdk.json')

// init firebase app
if (!admin.apps.length) {
  admin.initializeApp({
    credential: admin.credential.cert(serviceAccount),
    databaseURL: 'https://progressbar-cache.firebaseio.com'
  })
}

// setup the correct collection to reference
var db = admin.database()
var ref = db.ref('cache')
// init obj for collecting of data
var overviewObj = []

function safeSet(val) {
  if (val == undefined) {
    return null
  } else {
    return val
  }
}


var readRef = db.ref("cache/airtable-albums");
var Array_Albums = [];
// readRef.on("value", function(snapshot) {
//   // console.log(snapshot.val());
//   for (let i = 0; i < snapshot.val().length; i++) {
//     const id = snapshot.val()[i].fields.Number;
//     // Array_Albums.push(id)
    
//     setTimeout(() => {
//       callAPI(id);
//       console.count('Flickr -> Firebase ' + id);
//     }, 1000 * 60 * 60 * (i)); // 1 hour
//   }
// }, function (errorObject) {
//   console.log("The albums read failed: " + errorObject.code);
// });

var S03_ID = '72157697093742854'
var pageNo = 1

function callAPI(id) {
  flickr.photosets
    .getPhotos({
      photoset_id: id,
      user_id: FLICKR_API.id,
      page: pageNo
    })
    .then(function(res) {
      var flickrRef = ref.child('flickr_v2')
      let array = res.body.photoset.photo
      let size = 'b' // b=big m=medium s=small t=thumb

      array.forEach(photo => {
        photo.url = `https://farm${photo.farm}.staticflickr.com/${ photo.server}/${photo.id}_${photo.secret}_${size}.jpg`

        flickr.tags
          .getListPhoto({
            photo_id: photo.id
          })
          .then(function(res) {
            photo.tags = res.body.photo.tags.tag
            // -------------------------------
            overviewObj.push(photo)
            // -------------------------------
          })
          .catch(function(err) {
            console.log('flickr.tags.getListphoto error', err)
          })
        })
        // https://stackoverflow.com/questions/46408326/android-firebase-save-new-data-without-overwriting-old-data
        setTimeout(function(){ 
          if (overviewObj) {
            console.log(overviewObj.length)
            flickrRef.push().set(overviewObj)
          }
        }, 40000); // wait 20 sec

    })
    .catch(function(err) {
      console.error('flickr photoset error', err)
    })
}
// callAPI()
// call every ?120? minutes to update
// callAPI()

setInterval(() => {
  // console.count('Flickr -> Firebase');
  // callAPI()
}, 1000 * 60 * 120);

router.get('/', function(req, res) {
  res.send('API route Flickr')
})

module.exports = router