Squash merge feature/library-reorganization

frontend/src/lib/media.ts

@@ -0,0 +1,26 @@
+function formatSecondsValue(milliseconds: number): string {
+  return (milliseconds / 1000).toFixed(1);
+}
+
+export function formatClipRange(startMs: number, endMs: number): string {
+  return `${formatSecondsValue(startMs)}s to ${formatSecondsValue(endMs)}s`;
+}
+
+export function formatPlaybackPosition(milliseconds: number): string {
+  const roundedSeconds = Math.round(Math.max(0, milliseconds) / 100) / 10;
+  const wholeSeconds = Math.floor(roundedSeconds);
+  const tenths = Math.round((roundedSeconds - wholeSeconds) * 10);
+  const hours = Math.floor(wholeSeconds / 3600);
+  const minutes = Math.floor((wholeSeconds % 3600) / 60);
+  const seconds = wholeSeconds % 60;
+
+  if (hours > 0) {
+    return `${hours}:${String(minutes).padStart(2, "0")}:${String(seconds).padStart(2, "0")}.${tenths}`;
+  }
+
+  if (minutes > 0) {
+    return `${minutes}:${String(seconds).padStart(2, "0")}.${tenths}`;
+  }
+
+  return `${seconds}.${tenths}s`;
+}