Added Dominican Republic holidays

src/Countries/DominicanRepublic.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Spatie\Holidays\Countries;
+
+use Carbon\CarbonImmutable;
+
+class DominicanRepublic extends Country
+{
+    public function countryCode(): string
+    {
+        return 'do';
+    }
+
+    /** @return array<string, CarbonImmutable | string> */
+    protected function allHolidays(int $year): array
+    {
+        return array_merge([
+            'Año Nuevo' => '01-01',
+            'Día de la Altagracia' => '01-21',
+            'Día de Duarte' => '01-26',
+            'Día de la Independencia' => '02-27',
+            'Día del Trabajo' => '05-01',
+            'Día de la Restauración' => '08-16',
+            'Día de las Mercedes' => '09-24',
+            'Día de la Constitución' => '11-06',
+            'Día de la Virgen de la Altagracia' => '12-08',
+            'Navidad' => '12-25',
+        ], $this->variableHolidays($year));
+    }
+
+    /** @return array<string, CarbonImmutable> */
+    protected function variableHolidays(int $year): array
+    {
+        $easter =  CarbonImmutable::createFromTimestamp(easter_date($year))
+            ->setTimezone('America/Santo_Domingo');
+
+        return [
+            'Jueves Santo' => $easter->subDays(3),
+            'Viernes Santo' => $easter->subDays(2),
+        ];
+    }
+}

tests/.pest/snapshots/Countries/DominicanRepublicTest/it_can_calculate_dominican_republic_holidays.snap

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+[
+    {
+        "name": "A\u00f1o Nuevo",
+        "date": "2024-01-01"
+    },
+    {
+        "name": "D\u00eda de la Altagracia",
+        "date": "2024-01-21"
+    },
+    {
+        "name": "D\u00eda de Duarte",
+        "date": "2024-01-26"
+    },
+    {
+        "name": "D\u00eda de la Independencia",
+        "date": "2024-02-27"
+    },
+    {
+        "name": "Jueves Santo",
+        "date": "2024-03-28"
+    },
+    {
+        "name": "Viernes Santo",
+        "date": "2024-03-29"
+    },
+    {
+        "name": "D\u00eda del Trabajo",
+        "date": "2024-05-01"
+    },
+    {
+        "name": "D\u00eda de la Restauraci\u00f3n",
+        "date": "2024-08-16"
+    },
+    {
+        "name": "D\u00eda de las Mercedes",
+        "date": "2024-09-24"
+    },
+    {
+        "name": "D\u00eda de la Constituci\u00f3n",
+        "date": "2024-11-06"
+    },
+    {
+        "name": "D\u00eda de la Virgen de la Altagracia",
+        "date": "2024-12-08"
+    },
+    {
+        "name": "Navidad",
+        "date": "2024-12-25"
+    }
+]

tests/Countries/DominicanRepublicTest.php

@@ -0,0 +1,19 @@
+<?php
+
+namespace Spatie\Holidays\Tests\Countries;
+
+use Carbon\CarbonImmutable;
+use Spatie\Holidays\Holidays;
+
+it('can calculate dominican republic holidays', function () {
+    CarbonImmutable::setTestNowAndTimezone('2024-01-01');
+
+    $holidays = Holidays::for(country: 'do')->get();
+
+    expect($holidays)
+        ->toBeArray()
+        ->not()->toBeEmpty();
+
+    expect(formatDates($holidays))->toMatchSnapshot();
+});
+