Added Frontend

frontend/composables/useFormat.ts

@@ -0,0 +1,25 @@
+export const useFormatDuration = (durationInMinutes:number,) => {
+    if (!durationInMinutes || durationInMinutes <= 0) return "00:00"
+
+    const hrs = Math.floor(durationInMinutes / 60)
+    const mins = Math.floor(durationInMinutes % 60)
+
+    return `${String(hrs).padStart(2, "0")}:${String(mins).padStart(2, "0")}`
+}
+
+export const useFormatDurationDays = (start,end) => {
+    const startDate = useNuxtApp().$dayjs(start);
+    const endDate = useNuxtApp().$dayjs(end);
+
+    if(startDate.isBefore(endDate)){
+        // inkl. beider Tage → +1
+        const days = endDate.diff(startDate, "day") + 1;
+
+        return days + " Tag" + (days > 1 ? "e" : "");
+    } else {
+        const days = startDate.diff(endDate, "day") + 1;
+
+        return days + " Tag" + (days > 1 ? "e" : "");
+    }
+
+}