"use strict"

const cron = require('cron');
const async = require('async');
const UserModel = require('../models/user');
const signatureTool = require('../signature-tool/signature-tool');


// Execute daily @ 02:30 AM
// const cronJob = cron.job('00 00 22 * * *', () => {
const cronJob = cron.job('00 00 */1 * * *', () => {

  console.log('\x1b[35m%s\x1b[0m', new Date().toLocaleString()
    + ': cron job started - UPDATE SIGNATURES');

  // mock response
  const res = {
    locals: {
      items: {}
    }
  };

  // re-create signature image for each active user
  UserModel.find({}, (err, users) => {
    async.eachSeries(users, (user, callback) => {
      // mock next to execute callback
      const next = (err) => {
        if (!err || (err && err.message.startsWith('Fraction not defined'))) {
          callback()
        } else {
          console.error('\x1b[41m%s\x1b[0m', new Date().toLocaleString()
            + ': Error in execution - UPDATE SIGNATURES: ' + err)
        }
      };
      signatureTool(user._id, res, next)
    }, () => {
      if (err) {
        console.error('\x1b[41m%s\x1b[0m', new Date().toLocaleString()
          + ': Error in execution - UPDATE SIGNATURES: ' + err)
      }
      console.log('\x1b[35m%s\x1b[0m', new Date().toLocaleString()
        + ': finished successful - UPDATE SIGNATURES');
    })
  });

});

module.exports = cronJob;