Client - init calendar on Dashboard

fittrackee_client/src/utils/dates.ts

@@ -2,10 +2,13 @@ import {
   addDays,
   addMonths,
   addYears,
+  endOfMonth,
+  endOfWeek,
   startOfMonth,
   startOfWeek,
   startOfYear,
 } from 'date-fns'
+import { utcToZonedTime } from 'date-fns-tz'
 
 export const startDate = (
   duration: string,
@@ -40,3 +43,20 @@ export const incrementDate = (duration: string, day: Date): Date => {
       )
   }
 }
+
+export const getDateWithTZ = (dateInUTC: string, tz: string): Date => {
+  return utcToZonedTime(new Date(dateInUTC), tz)
+}
+
+export const getCalendarStartAndEnd = (
+  date: Date,
+  weekStartingMonday: boolean
+): Record<string, Date> => {
+  const monthStart = startOfMonth(date)
+  const monthEnd = endOfMonth(date)
+  const weekStartsOn = weekStartingMonday ? 1 : 0
+  return {
+    start: startOfWeek(monthStart, { weekStartsOn }),
+    end: endOfWeek(monthEnd),
+  }
+}