ceph/src/pybind/mgr/dashboard/frontend/src/app/shared/services/device.service.ts

   1 import { Injectable } from '@angular/core';
   2
   3 import * as moment from 'moment';
   4
   5 import { CdDevice } from '../models/devices';
   6
   7 @Injectable({
   8   providedIn: 'root'
   9 })
  10 export class DeviceService {
  11   constructor() {}
  12
  13   /**
  14    * Calculates additional data and appends them as new attributes to the given device.
  15    */
  16   calculateAdditionalData(device: CdDevice): CdDevice {
  17     if (!device.life_expectancy_min || !device.life_expectancy_max) {
  18       device.state = 'unknown';
  19       return device;
  20     }
  21     const hasDate = (float: string): boolean => !!Number.parseFloat(float);
  22     const weeks = (isoDate1: string, isoDate2: string): number =>
  23       !isoDate1 || !isoDate2 || !hasDate(isoDate1) || !hasDate(isoDate2)
  24         ? null
  25         : moment.duration(moment(isoDate1).diff(moment(isoDate2))).asWeeks();
  26
  27     const ageOfStamp = moment
  28       .duration(moment(moment.now()).diff(moment(device.life_expectancy_stamp)))
  29       .asWeeks();
  30     const max = weeks(device.life_expectancy_max, device.life_expectancy_stamp);
  31     const min = weeks(device.life_expectancy_min, device.life_expectancy_stamp);
  32
  33     if (ageOfStamp > 1) {
  34       device.state = 'stale';
  35     } else if (max !== null && max <= 2) {
  36       device.state = 'bad';
  37     } else if (min !== null && min <= 4) {
  38       device.state = 'warning';
  39     } else {
  40       device.state = 'good';
  41     }
  42
  43     device.life_expectancy_weeks = {
  44       max: max !== null ? Math.round(max) : null,
  45       min: min !== null ? Math.round(min) : null
  46     };
  47
  48     return device;
  49   }
  50
  51   readable(device: CdDevice): CdDevice {
  52     device.readableDaemons = device.daemons.join(' ');
  53     return device;
  54   }
  55
  56   prepareDevice(device: CdDevice): CdDevice {
  57     return this.readable(this.calculateAdditionalData(device));
  58   }
  59 }