@trusthab/composable-resources/src/resources/kpi/thermostat_running_status.js

migrating https://github.com/knetikmedia/hab-api/tree/integration/app/resources/composable

const { underscore } = require('inflected');
const _ = require('lodash');
const composer = require('../../mixin_loader');

module.exports = (App) => {
  class ThermostatRunningStatusResource {
    static mixins() {
      return ['Kpi'];
    }

    getMetricId() {
      return 'thermostat_running_status';
    }

    getMetricType() {
      return 'gauge';
    }

    getValue() {
      let { status } = this.get('obj');

      // an object must match all inclusive property values in order to be given
      // a datapoint
      const inclusives = [
        ['device_type', 'thermostat'],
        ['location_type', 'unit']
      ];

      let inclusivesResults = inclusives.map(([prop, val]) => {
        const propVal = this.get('obj')[prop];
        if (propVal === val) { return true; }
        return undefined;
      });
      inclusivesResults = _.compact(inclusives);
      if (inclusivesResults.length !== inclusives.length) {
        return null;
      }

      // select the correct numerical status value or fallback to the
      // `not_running` default
      const statuses = {
        unknown: -2,
        off: -1,
        not_running: 0,
        cooling: 1,
        heating: 2
      };

      const hasStatus = !!statuses[status];
      status = hasStatus ? status : 'not_running';

      const numericalStatus = statuses[status];
      return numericalStatus;
    }

    customDimensions() {
      return true;
    }

    getDimensions() {
      const dimensions = _.pick(this.get('obj'), [
        'id',
        'location_id',
        'parent_location_id',
        'root_location_id'
      ]);

      return {
        device_id: dimensions.id,
        unit_id: dimensions.location_id,
        building_id: dimensions.parent_location_id,
        property_id: dimensions.root_location_id
      };
    }
  }

  return composer(ThermostatRunningStatusResource, App);
};