fh-wfm-result/lib/cloud/index.js

A result module for WFM, for working with the results of pushing a workorder through a workflow

'use strict';

var config = require('../config');
var shortid = require('shortid');
var ResultTopics = require('fh-wfm-mediator/lib/topics');


module.exports = function(mediator) {
  //Used for cloud data storage topics
  var resultCloudDataTopics = new ResultTopics(mediator);
  resultCloudDataTopics.prefix(config.cloudDataTopicPrefix).entity(config.datasetId);

  //Used for cloud topics
  var resultCloudTopics = new ResultTopics(mediator);
  resultCloudTopics.prefix(config.cloudTopicPrefix).entity(config.datasetId);

  /**
   * Subscribers to sync topics which publishes to a data storage topic, subscribed to by a storage module,
   * for CRUDL operations. Publishes the response received from the storage module back to sync
   */
  resultCloudTopics.on('create', function(resultToCreate, mediatorTopicIdentifier) {
    // Adds an id field required by the new simple store module to the result object that will be created
    resultToCreate.id = shortid.generate();

    resultCloudDataTopics.request('create', resultToCreate, {uid: resultToCreate.id})
      .then(function(createdresult) {
        //This is using a timestamp as the mediatorTopicIdentifier generated by the sync module
        mediator.publish(resultCloudTopics.getTopic('create', 'done') + ':' + mediatorTopicIdentifier, createdresult);
      });
  });

  resultCloudTopics.on('list', function(listOptions) {
    var self = this;
    listOptions = listOptions || {};
    listOptions.filter = listOptions.filter || {};
    listOptions.filter.topicUid = listOptions.topicUid || shortid.generate();

    resultCloudDataTopics.request('list', listOptions.filter, {uid: listOptions.filter.topicUid}).then(function(list) {
      self.mediator.publish(resultCloudTopics.getTopic('list', 'done', listOptions.topicUid), list);
    }).catch(function(err) {
      self.mediator.publish(resultCloudTopics.getTopic('list', 'error', listOptions.topicUid), err);
    });
  });

  resultCloudTopics.on('update', function(resultToUpdate) {

    //The server ID is not guaranteed to have been assigned yet, so the UID could be the _localuid
    return resultCloudDataTopics.request('update', resultToUpdate, {uid: resultToUpdate.id || resultToUpdate._localuid});
  });

  resultCloudTopics.on('read', function(uid) {
    return resultCloudDataTopics.request('read', uid);
  });

  resultCloudTopics.on('delete', function(uid) {
    return resultCloudDataTopics.request('delete', uid);
  });
};