refactor

public/js/utils/timeUtils.js

@@ -0,0 +1,54 @@
+/**
+ * Time utility functions
+ */
+
+/**
+ * Round time down to nearest 15 minutes
+ * @param {Date} date - Date object
+ * @returns {Date} - Rounded date
+ */
+export function roundDownTo15Min(date) {
+  const minutes = date.getMinutes();
+  const roundedMinutes = Math.floor(minutes / 15) * 15;
+  date.setMinutes(roundedMinutes);
+  date.setSeconds(0);
+  date.setMilliseconds(0);
+  return date;
+}
+
+/**
+ * Round time up to nearest 15 minutes
+ * @param {Date} date - Date object
+ * @returns {Date} - Rounded date
+ */
+export function roundUpTo15Min(date) {
+  const minutes = date.getMinutes();
+  const roundedMinutes = Math.ceil(minutes / 15) * 15;
+  date.setMinutes(roundedMinutes);
+  date.setSeconds(0);
+  date.setMilliseconds(0);
+  return date;
+}
+
+/**
+ * Format time as HH:MM
+ * @param {Date} date - Date object
+ * @returns {string} - Time in HH:MM format
+ */
+export function formatTime(date) {
+  const hours = String(date.getHours()).padStart(2, '0');
+  const minutes = String(date.getMinutes()).padStart(2, '0');
+  return `${hours}:${minutes}`;
+}
+
+/**
+ * Format seconds to HH:MM:SS
+ * @param {number} seconds - Duration in seconds
+ * @returns {string} - Formatted duration
+ */
+export function formatDuration(seconds) {
+  const hrs = Math.floor(seconds / 3600);
+  const mins = Math.floor((seconds % 3600) / 60);
+  const secs = seconds % 60;
+  return `${String(hrs).padStart(2, '0')}:${String(mins).padStart(2, '0')}:${String(secs).padStart(2, '0')}`;
+}