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

const { User } = require('../models/user');
const { ExtraList } = require('../models/extralist');

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

const tools = require('../tools/general');
const shared_consts = require('../tools/shared_nodejs');

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

const telegrambot = require('../telegram/telegrambot');

const _ = require('lodash');

const reg = require('../reg/registration');

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

const mongoose = require('mongoose');
const Subscription = mongoose.model('subscribers');

function existSubScribe(userId, access, browser) {
  return Subscription.findOne({ userId, access, browser })
    .then(itemsub => {
      return itemsub
    })
    .catch(err => {
      return null
    })

}

function getMobileComplete(user) {
  let str = user.profile.intcode_cell + user.profile.cell;
  str = str.replace(/\s+/g, '');
  // str = str.replace(/.+/g, '');
  // str = str.replace(/-+/g, '');

  return str
}


// POST /users
router.post('/', async (req, res) => {
  tools.mylog("POST /users");
  const body = _.pick(req.body, ['email', 'password', 'username', 'name', 'surname', 'idapp', 'keyappid', 'lang', 'profile', 'aportador_solidario']);
  const user = new User(body);

  // tools.mylog("LANG PASSATO = " + user.lang, "IDAPP", user.idapp);

  user.linkreg = reg.getlinkregByEmail(body.idapp, body.email, body.username);
  user.verified_email = false;
  user.ipaddr = reg.getiPAddressUser(req);
  user.lasttimeonline = new Date();
  user.date_reg = new Date();
  user.date_temp_reg = new Date();
  // user.perm = 3;
  if (tools.testing()) {
    user.verified_email = true;
  }

  let exit;

  // Check if already esist email or username
  exit = await User.findByUsername(user.idapp, user.username).then((useralreadyexist) => {
    if (useralreadyexist) {
      res.status(400).send({ code: server_constants.RIS_CODE_USERNAME_ALREADY_EXIST, msg: '' });
      return 1;
    }

  });

  if (exit === 1)
    return;

  exit = await User.findByEmail(user.idapp, user.email)
    .then((useralreadyexist) => {
      if (useralreadyexist) {
        res.status(400).send({ code: server_constants.RIS_CODE_EMAIL_ALREADY_EXIST, msg: '' });
        return 1;
      }

    });

  if (exit === 1)
    return;

  let recextra = null;

  recextra = await ExtraList.findByCellAndNameSurname(user.idapp, getMobileComplete(user), user.name, user.surname);
  let nomeaportador_corretto = "";
  if (recextra) {
    nomeaportador_corretto = recextra.aportador_solidario_name_surname;
    if (nomeaportador_corretto === '')
      nomeaportador_corretto = recextra.aportador_solidario_originale_name_surname;
  }


  namesurname_aportador_reg = await User.getNameSurnameByUsername(user.idapp, user.aportador_solidario);

  if (recextra && namesurname_aportador_reg !== '' && namesurname_aportador_reg !== nomeaportador_corretto) {
    // Si sta tentando di registrare una persona sotto che non corrisponde!
    let msg = 'L\'utente ' + user.name + ' ' + user.surname + ' si sta registrando con il link di ' + user.aportador_solidario + ' (' + namesurname_aportador_reg + ') ' +
      'invece è assegnato a ' + nomeaportador_corretto;

    telegrambot.sendMsgTelegramToTheManagers(user.idapp, msg);
    res.status(400).send({ code: server_constants.RIS_CODE_USER_NOT_THIS_APORTADOR, msg: '' });
    return 1;
  }

  const already_registered = recextra;


  // Check if is an other people aportador_solidario

  if (already_registered) {
    // Check in the extraList if is present!
    if (!recextra) {
      res.status(400).send({ code: server_constants.RIS_CODE_USER_EXTRALIST_NOTFOUND, msg: '' });
      return 1;
    } else {
      user.ind_order = recextra.ind_order;
      user.date_reg = recextra.date_reg;
      if (recextra.aportador_solidario_name_surname)
        user.aportador_solidario_nome_completo = recextra.aportador_solidario_name_surname;
      else
        user.aportador_solidario_nome_completo = recextra.aportador_solidario_originale_name_surname;

      user.aportador_solidario_ind_order = recextra.aportador_solidario_ind_order;

      user.note = recextra.note;

      if (recextra.is_staff) {
        user.perm = shared_consts.Permissions.Manager;
      }
      if (recextra.username === 'paoloar77') {
        user.perm = shared_consts.Permissions.Manager + shared_consts.Permissions.Admin;
      }

      const useraportador = await ExtraList.findByIndOrder(user.idapp, user.aportador_solidario_ind_order);
      if (useraportador)
        user.aportador_solidario = useraportador.username;
    }

  }

  return await user.save()
    .then(async () => {
      return await User.findByUsername(user.idapp, user.username)
        .then((usertrovato) => {

          // tools.mylog("TROVATO USERNAME ? ", user.username, usertrovato);
          if (usertrovato !== null) {
            return user.generateAuthToken(req);
          } else {
            res.status(400).send();
            return 0;
          }
        })
        .then(async (token) => {
          // tools.mylog("passo il TOKEN: ", token);

          if (recextra) {
            recextra.registered = true;
            recextra.username = user.username;
            await recextra.save();

            await User.fixUsername(user.idapp, user.ind_order, user.username);
          }
          return token;
        })
        .then(async (token) => {

          // tools.mylog("LINKREG = " + user.linkreg);
          // Invia un'email all'utente
          // tools.mylog('process.env.TESTING_ON', process.env.TESTING_ON);
          console.log('res.locale', res.locale);
          if (!tools.testing()) {
            await sendemail.sendEmail_Registration(user.lang, user.email, user, user.idapp, user.linkreg);
          }
          res.header('x-auth', token).send(user);
          return true;
        });
    }).catch((e) => {
      res.status(400).send(e);
    })
});

router.get('/:idapp/:username', (req, res) => {
  var username = req.params.username;
  const idapp = req.params.idapp;

  User.findByUsername(idapp, username).then((user) => {
    if (!user) {
      return res.status(404).send();
    }
    res.status(200).send();
  }).catch((e) => {
    res.status(400).send();
  });
});

router.patch('/:id', authenticate, (req, res) => {
  const id = req.params.id;
  const body = _.pick(req.body.user, shared_consts.fieldsUserToChange());

  tools.mylogshow('PATCH USER: ', id);

  if (!User.isAdmin(req.user.perm)) {
    // If without permissions, exit
    return res.status(404).send({ code: server_constants.RIS_CODE_ERR_UNAUTHORIZED, msg: '' });
  }

  User.findByIdAndUpdate(id, { $set: body }).then((user) => {
    tools.mylogshow(' USER TO MODIFY: ', user);
    if (!user) {
      return res.status(404).send();
    } else {
      res.send({ code: server_constants.RIS_CODE_OK, msg: '' });
    }

  }).catch((e) => {
    tools.mylogserr('Error patch USER: ', e);
    res.status(400).send();
  })
});


router.post('/login', (req, res) => {
  var body = _.pick(req.body, ['username', 'password', 'idapp', 'keyappid', 'lang']);
  var user = new User(body);
  // const subs = _.pick(req.body, ['subs']);

  // tools.mylog("LOGIN: username: " + user.username + " pwd = " + user.password);

  // tools.mylog("user REC:", user);

  if (body.keyappid !== process.env.KEY_APP_ID)
    return res.status(400).send();

  let resalreadysent = false;

  User.findByCredentials(user.idapp, user.username, user.password)
    .then((user) => {
      // tools.mylog("CREDENZIALI ! ");
      if (!user) {
        tools.mylogshow("NOT FOUND !");
        res.status(404).send({ code: server_constants.RIS_CODE_LOGIN_ERR });
      }
      return user
    })
    .then(user => {
      if (user) {
        return user.generateAuthToken(req).then((token) => {
          var usertosend = User();

          shared_consts.fieldsUserToChange().forEach((field) => {
            usertosend[field] = user[field]
          });

          // usertosend._id = user._id.toHexString();
          // if (!User.isAdmin(req.user)) {
          //   usertosend.ipaddr = user.ipaddr;
          // }

          // tools.mylog("user.verified_email:" + user.verified_email);
          // tools.mylog("usertosend.userId", usertosend.userId);

          return { usertosend, token }

        })
          .then((myris) => {
            const access = 'auth';
            const browser = req.get('User-Agent');

            // Check if already exist Subscribe
            return existSubScribe(myris.usertosend._id, access, browser).then(subscribe => {
              return (subscribe !== null)
            }).then(subsExistonDb => {
              return { usertosend: myris.usertosend, token: myris.token, subsExistonDb }
            }).catch(err => {
              return { usertosend: myris.usertosend, token: myris.token, subsExistonDb: false }
            })
          }).then(myris => {
            // console.log('res', myris.token, myris.usertosend);

            // SEND TOKEN AND CODE RESULT
            res.header('x-auth', myris.token).send({
              usertosend: myris.usertosend,
              code: server_constants.RIS_CODE_OK,
              subsExistonDb: myris.subsExistonDb
            });
            // tools.mylog("TROVATOOO!");

            // tools.mylog('FINE LOGIN')
          });
      }
    })
    .catch((e) => {
      tools.mylog("ERRORE IN LOGIN: " + e);
      if (!resalreadysent)
        res.status(400).send({ code: server_constants.RIS_CODE_LOGIN_ERR_GENERIC });
    });
});

router.delete('/me/token', authenticate, (req, res) => {
  // tools.mylog("TOKENREM = " + req.token);
  req.user.removeToken(req.token).then(() => {
    res.status(200).send();
  }, () => {
    res.status(400).send();
  });
});

router.post('/setperm', authenticate, (req, res) => {
  const body = _.pick(req.body, ['idapp', 'username', 'perm']);
  tools.mylog("SETPERM = " + req.token);

  User.setPermissionsById(res.user._id, body).then(() => {
    res.status(200).send();
  }, () => {
    res.status(400).send();
  });
});

router.post('/import_extralist', async (req, res) => {

  const strdata = req.body.strdata;
  idapp = req.body.idapp;
  locale = req.body.locale;

  const ris = await ExtraList.ImportData(locale, idapp, strdata);
  console.log('ris', ris);

  res.send(ris);
});


module.exports = router;