client/src/app/shared/misc/from-now.pipe.ts

   1 import { Pipe, PipeTransform } from '@angular/core'
   2
   3 // Thanks: https://github.com/danrevah/ngx-pipes/blob/master/src/pipes/math/bytes.ts
   4
   5 @Pipe({name: 'fromNow'})
   6 export class FromNowPipe implements PipeTransform {
   7
   8   transform (value: number) {
   9     const seconds = Math.floor((Date.now() - value) / 1000)
  10
  11     let interval = Math.floor(seconds / 31536000)
  12     if (interval > 1) {
  13       return interval + ' years ago'
  14     }
  15
  16     interval = Math.floor(seconds / 2592000)
  17     if (interval > 1) return interval + ' months ago'
  18     if (interval === 1) return interval + ' month ago'
  19
  20     interval = Math.floor(seconds / 604800)
  21     if (interval > 1) return interval + ' weeks ago'
  22     if (interval === 1) return interval + ' week ago'
  23
  24     interval = Math.floor(seconds / 86400)
  25     if (interval > 1) return interval + ' days ago'
  26     if (interval === 1) return interval + ' day ago'
  27
  28     interval = Math.floor(seconds / 3600)
  29     if (interval > 1) return interval + ' hours ago'
  30     if (interval === 1) return interval + ' hour ago'
  31
  32     interval = Math.floor(seconds / 60)
  33     if (interval >= 1) return interval + ' min ago'
  34
  35     return Math.floor(seconds) + ' sec ago'
  36   }
  37 }