linagora-rse/modules/linagora.esn.digest.daily/lib/weight/index.js

Linagora RSE

'use strict';

var q = require('q');

module.exports = function(dependencies) {

  var arrayHelper = dependencies('helpers').array;
  var DEFAULT_STRATEGY = require('./strategies/date')(dependencies);

  function getStrategy() {
    return DEFAULT_STRATEGY;
  }

  /**
   * The input data contains:
   *
   * - messages: Array of messages.
   * - collaboration: The collaboration where messages have been published
   */
  function compute(user, data) {

    if (!user || !data) {
      return q.reject(new Error('User and data are required'));
    }

    if (arrayHelper.isNullOrEmpty(data.messages)) {
      return q(data);
    }

    var strategy = getStrategy(user, data);
    data.messages = strategy.computeMessagesWeight(data.messages);
    return q(data);
  }

  return {
    compute: compute
  };
};