Added online status

src/lib/formatters.ts

@@ -18,3 +18,26 @@ export function formatNumber(num: number): string {
 export function formatDate(timestamp: number): string {
     return dateFormatter.format(new Date(timestamp))
 }
+
+export function formatRelativeTime(timestamp: number, type: "past" | "future") {
+    const now = Date.now()
+    let diffMs = timestamp - now
+    const past = diffMs < 0
+    diffMs = Math.abs(diffMs)
+    const suffixString = type === "past" ? " ago" : ""
+
+    const seconds = Math.floor(diffMs / 1000)
+    const days = Math.floor(seconds / 86400)
+    const hours = Math.floor((seconds % 86400) / 3600)
+    const minutes = Math.floor((seconds % 3600) / 60)
+    const secs = seconds % 60
+
+    const parts: string[] = []
+    if (days) parts.push(days + " days,")
+    if (hours) parts.push(hours + " hours,")
+    if (minutes) parts.push(minutes + " minutes and")
+    if (!parts.length || secs) parts.push(secs + " seconds")
+
+    const str = parts.slice(0, 4).join(" ")
+    return past ? str + suffixString : "in " + str
+}