client/src/app/shared/shared-main/angular/from-now.pipe.ts

   1 import { Pipe, PipeTransform } from '@angular/core'
   2
   3 // Thanks: https://stackoverflow.com/questions/3177836/how-to-format-time-since-xxx-e-g-4-minutes-ago-similar-to-stack-exchange-site
   4 @Pipe({ name: 'myFromNow' })
   5 export class FromNowPipe implements PipeTransform {
   6
   7   transform (arg: number | Date | string) {
   8     const argDate = new Date(arg)
   9     const seconds = Math.floor((Date.now() - argDate.getTime()) / 1000)
  10
  11     let interval = Math.floor(seconds / 31536000)
  12     if (interval > 1) return $localize`${interval} years ago`
  13     if (interval === 1) return $localize`${interval} year ago`
  14
  15     interval = Math.floor(seconds / 2592000)
  16     if (interval > 1) return $localize`${interval} months ago`
  17     if (interval === 1) return $localize`${interval} month ago`
  18
  19     interval = Math.floor(seconds / 604800)
  20     if (interval > 1) return $localize`${interval} weeks ago`
  21     if (interval === 1) return $localize`${interval} week ago`
  22
  23     interval = Math.floor(seconds / 86400)
  24     if (interval > 1) return $localize`${interval} days ago`
  25     if (interval === 1) return $localize`${interval} day ago`
  26
  27     interval = Math.floor(seconds / 3600)
  28     if (interval > 1) return $localize`${interval} hours ago`
  29     if (interval === 1) return $localize`${interval} hour ago`
  30
  31     interval = Math.floor(seconds / 60)
  32     if (interval >= 1) return $localize`${interval} min ago`
  33
  34     return $localize`just now`
  35   }
  36 }