From 73d75835e18a33c7f6c1b09bbcef93b16a7a9bfa Mon Sep 17 00:00:00 2001
From: Thomas Grothe <grothe.tr@gmail.com>
Date: Thu, 30 Apr 2026 00:53:13 -0400
Subject: redo timeplot web

---
 web-timeplot/src/utils-format.js | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 web-timeplot/src/utils-format.js

(limited to 'web-timeplot/src/utils-format.js')

diff --git a/web-timeplot/src/utils-format.js b/web-timeplot/src/utils-format.js
new file mode 100644
index 0000000..f4eac88
--- /dev/null
+++ b/web-timeplot/src/utils-format.js
@@ -0,0 +1,22 @@
+export function formatDuration(ms) {
+    const totalSeconds = Math.max(0, ms / 1000);
+    if (totalSeconds < 60) {
+        return `${totalSeconds.toFixed(2)}s`;
+    }
+
+    const minutes = Math.floor(totalSeconds / 60);
+    const seconds = totalSeconds % 60;
+    return `${minutes}m ${seconds.toFixed(1)}s`;
+}
+
+export function formatWallClock(timestampMs) {
+    return new Intl.DateTimeFormat(undefined, {
+        hour: '2-digit',
+        minute: '2-digit',
+        second: '2-digit',
+    }).format(new Date(timestampMs));
+}
+
+export function formatValue(value) {
+    return Number.isFinite(value) ? value.toFixed(3) : '—';
+}
-- 
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