init

app/src/util/time.ts

@@ -0,0 +1,51 @@
+const formatSeconds = (seconds: number): string => {
+    const hours = Math.floor(seconds / 3600);
+    const minutes = Math.floor((seconds % 3600) / 60);
+    const secs = Math.floor(seconds % 60);
+
+    return [
+        hours > 0 ? `${hours}h` : '',
+        minutes > 0 ? `${minutes}m` : '',
+        secs > 0 ? `${secs}s` : ''
+    ].filter(Boolean).join(' ');
+}
+
+const tsToDate = (timestamp: string): Date => {
+    const date = new Date(timestamp);
+    if (isNaN(date.getTime())) {
+        throw new Error(`Invalid timestamp: ${timestamp}`);
+    }
+
+    return date;
+}
+
+const dateToTs = (date: Date): string => {
+    if (!(date instanceof Date) || isNaN(date.getTime())) {
+        throw new Error(`Invalid date: ${date}`);
+    }
+    return date.toISOString();
+}
+
+const getDaysBetween = (start: Date, end: Date): number => {
+    const startTs = start.getTime();
+    const endTs = end.getTime();
+    return Math.floor((endTs - startTs) / (1000 * 60 * 60 * 24));
+}   
+
+const getDaysAfter = (start: Date, days: number): Date => {
+    const startTs = start.getTime();
+    const newTs = startTs + (days * 1000 * 60 * 60 * 24);
+    const newDate = new Date(newTs);
+    if (isNaN(newDate.getTime())) {
+        throw new Error(`Invalid date after adding days: ${newDate}`);
+    }
+    return newDate;
+}
+
+export {
+    formatSeconds,
+    tsToDate,
+    dateToTs,
+    getDaysBetween,
+    getDaysAfter
+}