1 files changed, 37 insertions, 0 deletions

diff --git a/client/src/app/shared/misc/from-now.pipe.ts b/client/src/app/shared/misc/from-now.pipe.ts
new file mode 100644
index 000000000..25e5d6a85
--- /dev/null
+++ b/client/src/app/shared/misc/from-now.pipe.ts
@@ -0,0 +1,37 @@
+import { Pipe, PipeTransform } from '@angular/core'
+
+// Thanks: https://github.com/danrevah/ngx-pipes/blob/master/src/pipes/math/bytes.ts
+
+@Pipe({name: 'fromNow'})
+export class FromNowPipe implements PipeTransform {
+
+  transform (value: number) {
+    const seconds = Math.floor((Date.now() - value) / 1000)
+
+    let interval = Math.floor(seconds / 31536000)
+    if (interval > 1) {
+      return interval + ' years ago'
+    }
+
+    interval = Math.floor(seconds / 2592000)
+    if (interval > 1) return interval + ' months ago'
+    if (interval === 1) return interval + ' month ago'
+
+    interval = Math.floor(seconds / 604800)
+    if (interval > 1) return interval + ' weeks ago'
+    if (interval === 1) return interval + ' week ago'
+
+    interval = Math.floor(seconds / 86400)
+    if (interval > 1) return interval + ' days ago'
+    if (interval === 1) return interval + ' day ago'
+
+    interval = Math.floor(seconds / 3600)
+    if (interval > 1) return interval + ' hours ago'
+    if (interval === 1) return interval + ' hour ago'
+
+    interval = Math.floor(seconds / 60)
+    if (interval >= 1) return interval + ' min ago'
+
+    return Math.floor(seconds) + ' sec ago'
+  }
+}