Add Kazakhstan (#618)

src/Nager.Date/HolidayProviders/KazakhstanHolidayProvider.cs

@@ -0,0 +1,141 @@
+using Nager.Date.Models;
+using Nager.Date.ReligiousProviders;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Nager.Date.HolidayProviders
+{
+    /// <summary>
+    /// Kazakhstan HolidayProvider
+    /// </summary>
+    internal sealed class KazakhstanHolidayProvider : IHolidayProvider
+    {
+        private readonly IOrthodoxProvider _orthodoxProvider;
+
+        /// <summary>
+        /// Kazakhstan HolidayProvider
+        /// </summary>
+        /// <param name="orthodoxProvider"></param>
+        public KazakhstanHolidayProvider(
+            IOrthodoxProvider orthodoxProvider)
+        {
+            this._orthodoxProvider = orthodoxProvider;
+        }
+
+        /// <inheritdoc/>
+        public IEnumerable<Holiday> GetHolidays(int year)
+        {
+            var countryCode = CountryCode.KZ;
+
+            //TODO: Last day of Hajj -> Islamic calendar
+
+            var holidaySpecifications = new List<HolidaySpecification>
+            {
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 1, 1),
+                    EnglishName = "New Year's Day",
+                    LocalName = "Жаңа жыл",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 1, 2),
+                    EnglishName = "New Year's Day",
+                    LocalName = "Жаңа жыл",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 3, 8),
+                    EnglishName = "International Women's Day",
+                    LocalName = "Халықаралық әйелдер күні",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 3, 21),
+                    EnglishName = "Nauryz Meyramy",
+                    LocalName = "Наурыз мейрамы",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 3, 22),
+                    EnglishName = "Nauryz Meyramy",
+                    LocalName = "Наурыз мейрамы",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 3, 23),
+                    EnglishName = "Nauryz Meyramy",
+                    LocalName = "Наурыз мейрамы",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 5, 1),
+                    EnglishName = "Kazakhstan People's Unity Day",
+                    LocalName = "Қазақстан халқының",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 5, 7),
+                    EnglishName = "Defender of the Fatherland Day",
+                    LocalName = "Отан Қорғаушы күні",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 5, 9),
+                    EnglishName = "Great Patriotic War Against Fascism Victory Day",
+                    LocalName = "Жеңіс күні",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 7, 6),
+                    EnglishName = "Capital City Day",
+                    LocalName = "Астана күні",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 8, 30),
+                    EnglishName = "Constitution Day",
+                    LocalName = "Конституция күні",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 10, 25),
+                    EnglishName = "Republic Day",
+                    LocalName = "Республика күні",
+                    HolidayTypes = HolidayTypes.Public
+                },
+                new HolidaySpecification
+                {
+                    Date = new DateTime(year, 12, 16),
+                    EnglishName = "Independence Day",
+                    LocalName = "Тәуелсіздік күні",
+                    HolidayTypes = HolidayTypes.Public
+                }
+            };
+
+            var holidays = HolidaySpecificationProcessor.Process(holidaySpecifications, countryCode);
+            return holidays.OrderBy(o => o.Date);
+        }
+
+        /// <inheritdoc/>
+        public IEnumerable<string> GetSources()
+        {
+            return new string[]
+            {
+                "https://en.wikipedia.org/wiki/Public_holidays_in_Kazakhstan"
+            };
+        }
+    }
+}

src/Nager.Date/HolidaySystem.cs

@@ -88,6 +88,7 @@ public static class HolidaySystem
                 { CountryCode.JM, new Lazy<IHolidayProvider>(() => new JamaicaHolidayProvider(_catholicProvider))},
                 { CountryCode.JP, new Lazy<IHolidayProvider>(() => new JapanHolidayProvider())},
                 { CountryCode.KR, new Lazy<IHolidayProvider>(() => new SouthKoreaHolidayProvider())},
+                { CountryCode.KZ, new Lazy<IHolidayProvider>(() => new KazakhstanHolidayProvider(_orthodoxProvider))},
                 { CountryCode.MA, new Lazy<IHolidayProvider>(() => new MoroccoHolidayProvider())},
                 { CountryCode.MC, new Lazy<IHolidayProvider>(() => new MonacoHolidayProvider(_catholicProvider))},
                 { CountryCode.MD, new Lazy<IHolidayProvider>(() => new MoldovaHolidayProvider(_orthodoxProvider))},