Update time.ts to handle very small or negative time differences (#1390)

* Update time.ts to handle very small or negative time differences

Right now, posts can appear to be from the future with a negative time difference (i.e. -3s appears). This change defines 'NOW' as less than 5 seconds old, and returns 'now' in that case.

It's not clear how localisation is handled - this may need translation.

* Add test for 'now' in time/ago(...)

Add tests for ago() for right now (i.e. 'now') and 10s ago to ensure the seconds case is still tested

1 files changed, 4 insertions, 1 deletions

diff --git a/src/lib/strings/time.ts b/src/lib/strings/time.ts
index 588b84459..05a60e94b 100644
--- a/src/lib/strings/time.ts
+++ b/src/lib/strings/time.ts
@@ -1,3 +1,4 @@
+const NOW = 5
 const MINUTE = 60
 const HOUR = MINUTE * 60
 const DAY = HOUR * 24
@@ -13,7 +14,9 @@ export function ago(date: number | string | Date): string {
     ts = date
   }
   const diffSeconds = Math.floor((Date.now() - ts) / 1e3)
-  if (diffSeconds < MINUTE) {
+  if (diffSeconds < NOW) {
+    return `now`
+  } else if (diffSeconds < MINUTE) {
     return `${diffSeconds}s`
   } else if (diffSeconds < HOUR) {
     return `${Math.floor(diffSeconds / MINUTE)}m`