const express = require('express');
const router = express.Router();

const tools = require('../tools/general');
const server_constants = require('../tools/server_constants');

const { authenticate } = require('../middleware/authenticate');

const { MyEvent } = require('../models/myevent');

const { ObjectID } = require('mongodb');

const sendemail = require('../sendemail');

const _ = require('lodash');

router.post('/', authenticate, (req, res) => {
  tools.mylog('INIZIO - MyEvent');

  // tools.mylog('req.body', req.body);
  const myrec = _.pick(req.body, tools.allfieldMyEvent());
  const id = myrec._id;
  const fieldtochange = _.pick(myrec, tools.allfieldMyEventChange());

  tools.mylog('crea MyEvent');
  const myevent = new MyEvent(myrec);

  const check = tools.checkUserOk(myevent.userId, req.user._id);
  if (check.exit) return check.ret;

  // Modify:
  return MyEvent.findOne({ id })
    .then(trovato => {
      // console.log('trovato', trovato);
      if (trovato) {
        return myevent.findOneAndUpdate({ id }, { $set: fieldtochange }, {
          new: true,
          upsert: true
        }).then((recmyevent) => {
          // tools.mylog('myevent:', myevent);
          // tools.mylog('already exist');
          sendNotif(res, myrec.idapp, req.user, recmyevent);
          res.send({ code: server_constants.RIS_CODE_OK, msg: '', id: recmyevent._id });
        });
      } else {
        // save to database a new record
        tools.mylog('save to database a new record');
        myevent._id = new ObjectID();
        return myevent.save().then((writeresult) => {
          let idobj = writeresult._id;

          myevent.findById(idobj)
            .then((recmyevent) => {
              sendNotif(res, myrec.idapp, req.user, recmyevent);
              res.send({ code: server_constants.RIS_CODE_OK, msg: '', id: recmyevent._id });
            });
        });
      }
    })
});

router.delete('/:id/:notify/:idapp', authenticate, (req, res) => {
  console.log('DELETE myevent');
  const id = req.params.id;
  const notify = req.params.notify;
  const idapp = req.params.idapp;

  myevent.findByIdAndRemove(id).then((recmyevent) => {
    if (!recmyevent) {
      return res.status(404).send();
    }

    if (notify === '1')
      sendNotif(res, idapp, req.user, recmyevent);

    tools.mylog('DELETED ', recmyevent.descr, recmyevent._id);

    res.send({ code: server_constants.RIS_CODE_OK, msg: '', id: recmyevent._id });

  }).catch((e) => {
    res.status(400).send();
  });
});


router.get('/:userId/:idapp/:sall', authenticate, (req, res) => {
  const userId = req.params.userId;
  const idapp = req.params.idapp;
  const sall = req.params.sall;
  // var category = req.params.category;

  // tools.mylog('GET myeventS : ', req.params);

  if (!ObjectID.isValid(userId)) {
    return res.status(404).send();
  }

  if (userId !== String(req.user._id)) {
    // I'm trying to write something not mine!
    return res.status(404).send({ code: server_constants.RIS_CODE_TODO_CREATING_NOTMYUSER });
  }

  // Extract all the todos of the userId only
  return MyEvent.findAllByUserIdAndIdApp(userId, idapp, sall).then((recevent) => {
    res.send({ recevent });
  }).catch((e) => {
    console.log(e);
    res.status(400).send(e);
  });

});


module.exports = router;