Update IndianHolidayStrategy.cs

src/DateTimeExtensions/WorkingDays/CultureStrategies/IndianHolidayStrategy.cs

@@ -1,4 +1,4 @@
-using DateTimeExtensions.Common;
+using DateTimeExtensions.Common;
 using System.Globalization;
 
 namespace DateTimeExtensions.WorkingDays.CultureStrategies
@@ -10,52 +10,138 @@
 
         public IndianHolidayStrategy()
         {
-            this.InnerHolidays.Add(GlobalHolidays.NewYear);
-            this.InnerHolidays.Add(GlobalHolidays.MayDay);
-            this.InnerHolidays.Add(IndependenceDay);
+            // --- Global Holidays ---
+            this.InnerHolidays.Add(NewYear);
+            this.InnerHolidays.Add(MayDay);
+            this.InnerHolidays.Add(Christmas);
+
+            // --- National Days ---
             this.InnerHolidays.Add(RepublicDay);
-            this.InnerHolidays.Add(GandhiBirthAnniversary);
+            this.InnerHolidays.Add(IndependenceDay);
+            this.InnerHolidays.Add(GandhiJayanti);
 
+            // --- Major Religious and Regional Festivals ---
+            this.InnerHolidays.Add(MakarSankranti);
+            this.InnerHolidays.Add(Pongal);
+            this.InnerHolidays.Add(MahaShivaratri);
+            this.InnerHolidays.Add(Holi);
+            this.InnerHolidays.Add(GoodFriday);
+            this.InnerHolidays.Add(MahavirJayanti);
+            this.InnerHolidays.Add(EidUlFitr);
+            this.InnerHolidays.Add(EidUlAdha);
+            this.InnerHolidays.Add(RakshaBandhan);
+            this.InnerHolidays.Add(Janmashtami);
+            this.InnerHolidays.Add(GaneshChaturthi);
+            this.InnerHolidays.Add(Onam);
+            this.InnerHolidays.Add(Vishu);
+            this.InnerHolidays.Add(Baisakhi);
+            this.InnerHolidays.Add(Ugadi);
+            this.InnerHolidays.Add(EidMiladUnNabi);
+            this.InnerHolidays.Add(NavratriStart);
+            this.InnerHolidays.Add(Dussehra);
+            this.InnerHolidays.Add(KarwaChauth);
+            this.InnerHolidays.Add(Diwali);
+            this.InnerHolidays.Add(GovardhanPuja);
+            this.InnerHolidays.Add(BhaiDooj);
+            this.InnerHolidays.Add(ChhathPuja);
+            this.InnerHolidays.Add(GuruNanakJayanti);
+            this.InnerHolidays.Add(Lohri);
         }
-        private static Holiday independenceDay;
-        public static Holiday IndependenceDay
-        {
-            get
-            {
-                if (independenceDay == null)
-                {
-                    independenceDay = new FixedHoliday("Independence Day", 8, 15, IndianCalendar);
-                }
-                return independenceDay;
-            }
-        }
 
+        // --- Global Holidays ---
+        private static Holiday newYear;
+        public static Holiday NewYear => newYear ??= new FixedHoliday("New Year", 1, 1, IndianCalendar);
+
+        private static Holiday mayDay;
+        public static Holiday MayDay => mayDay ??= new FixedHoliday("May Day", 5, 1, IndianCalendar);
+
+        private static Holiday christmas;
+        public static Holiday Christmas => christmas ??= new FixedHoliday("Christmas", 12, 25, IndianCalendar);
 
+        // --- National Days ---
         private static Holiday republicDay;
-        public static Holiday RepublicDay
-        {
-            get
-            {
-                if (republicDay == null)
-                {
-                    republicDay = new FixedHoliday("Republic Day", 1, 26, IndianCalendar);
-                }
-                return republicDay;
-            }
-        }
+        public static Holiday RepublicDay => republicDay ??= new FixedHoliday("Republic Day", 1, 26, IndianCalendar);
 
+        private static Holiday independenceDay;
+        public static Holiday IndependenceDay => independenceDay ??= new FixedHoliday("Independence Day", 8, 15, IndianCalendar);
 
-        private static Holiday gandhiBirthAnniversary;
-        public static Holiday GandhiBirthAnniversary
-        {
-            get
-            {
-                if (gandhiBirthAnniversary == null)
-                {
-                    gandhiBirthAnniversary = new FixedHoliday("Gandhi's Birth Anniversary", 10, 2, IndianCalendar);
-                }
-                return gandhiBirthAnniversary;
-            }
-        }
+        private static Holiday gandhiJayanti;
+        public static Holiday GandhiJayanti => gandhiJayanti ??= new FixedHoliday("Gandhi Jayanti", 10, 2, IndianCalendar);
+
+        // --- Religious & Regional ---
+        private static Holiday makarSankranti;
+        public static Holiday MakarSankranti => makarSankranti ??= new FixedHoliday("Makar Sankranti", 1, 14, IndianCalendar);
+
+        private static Holiday pongal;
+        public static Holiday Pongal => pongal ??= new FixedHoliday("Pongal", 1, 15, IndianCalendar);
+
+        private static Holiday mahaShivaratri;
+        public static Holiday MahaShivaratri => mahaShivaratri ??= new FixedHoliday("Maha Shivaratri", 3, 8, IndianCalendar);
+
+        private static Holiday holi;
+        public static Holiday Holi => holi ??= new FixedHoliday("Holi", 3, 25, IndianCalendar);
+
+        private static Holiday goodFriday;
+        public static Holiday GoodFriday => goodFriday ??= new FixedHoliday("Good Friday", 3, 29, IndianCalendar);
+
+        private static Holiday mahavirJayanti;
+        public static Holiday MahavirJayanti => mahavirJayanti ??= new FixedHoliday("Mahavir Jayanti", 4, 21, IndianCalendar);
+
+        private static Holiday eidUlFitr;
+        public static Holiday EidUlFitr => eidUlFitr ??= new FixedHoliday("Eid-ul-Fitr", 4, 10, IndianCalendar);
+
+        private static Holiday eidUlAdha;
+        public static Holiday EidUlAdha => eidUlAdha ??= new FixedHoliday("Eid-ul-Adha", 6, 17, IndianCalendar);
+
+        private static Holiday rakshaBandhan;
+        public static Holiday RakshaBandhan => rakshaBandhan ??= new FixedHoliday("Raksha Bandhan", 8, 19, IndianCalendar);
+
+        private static Holiday janmashtami;
+        public static Holiday Janmashtami => janmashtami ??= new FixedHoliday("Janmashtami", 8, 26, IndianCalendar);
+
+        private static Holiday ganeshChaturthi;
+        public static Holiday GaneshChaturthi => ganeshChaturthi ??= new FixedHoliday("Ganesh Chaturthi", 9, 7, IndianCalendar);
+
+        private static Holiday onam;
+        public static Holiday Onam => onam ??= new FixedHoliday("Onam", 8, 30, IndianCalendar);
+
+        private static Holiday vishu;
+        public static Holiday Vishu => vishu ??= new FixedHoliday("Vishu", 4, 14, IndianCalendar);
+
+        private static Holiday baisakhi;
+        public static Holiday Baisakhi => baisakhi ??= new FixedHoliday("Baisakhi", 4, 13, IndianCalendar);
+
+        private static Holiday ugadi;
+        public static Holiday Ugadi => ugadi ??= new FixedHoliday("Ugadi", 4, 9, IndianCalendar);
+
+        private static Holiday eidMiladUnNabi;
+        public static Holiday EidMiladUnNabi => eidMiladUnNabi ??= new FixedHoliday("Eid Milad-un-Nabi", 9, 27, IndianCalendar);
+
+        private static Holiday navratriStart;
+        public static Holiday NavratriStart => navratriStart ??= new FixedHoliday("Navratri Start", 10, 3, IndianCalendar);
+
+        private static Holiday dussehra;
+        public static Holiday Dussehra => dussehra ??= new FixedHoliday("Dussehra", 10, 12, IndianCalendar);
+
+        private static Holiday karwaChauth;
+        public static Holiday KarwaChauth => karwaChauth ??= new FixedHoliday("Karwa Chauth", 10, 19, IndianCalendar);
+
+        private static Holiday diwali;
+        public static Holiday Diwali => diwali ??= new FixedHoliday("Diwali", 11, 1, IndianCalendar);
+
+        private static Holiday govardhanPuja;
+        public static Holiday GovardhanPuja => govardhanPuja ??= new FixedHoliday("Govardhan Puja", 11, 2, IndianCalendar);
+
+        private static Holiday bhaiDooj;
+        public static Holiday BhaiDooj => bhaiDooj ??= new FixedHoliday("Bhai Dooj", 11, 3, IndianCalendar);
+
+        private static Holiday chhathPuja;
+        public static Holiday ChhathPuja => chhathPuja ??= new FixedHoliday("Chhath Puja", 11, 8, IndianCalendar);
+
+        private static Holiday guruNanakJayanti;
+        public static Holiday GuruNanakJayanti => guruNanakJayanti ??= new FixedHoliday("Guru Nanak Jayanti", 11, 15, IndianCalendar);
+
+        private static Holiday lohri;
+        public static Holiday Lohri => lohri ??= new FixedHoliday("Lohri", 1, 13, IndianCalendar);
     }
-}
+}