Added Haiti holidays (#148)

src/Countries/Haiti.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace Spatie\Holidays\Countries;
+
+use Carbon\CarbonImmutable;
+
+class Haiti extends Country
+{
+    public function countryCode(): string
+    {
+        return 'ht';
+    }
+
+    /** @return array<string, CarbonImmutable | string> */
+    protected function allHolidays(int $year): array
+    {
+        return array_merge([
+            'Nouvel an / Jour de l\'Indépendance' => '01-01',
+            'Jour des Aieux' => '01-2',
+            'Fête du Travail / Fête des Travailleurs' => '05-01',
+            'Jour du Drapeau et de l\'Université' => '05-18',
+            'L\'Assomption de Marie' => '08-15',
+            'Anniversaire de la mort de Dessalines' => '10-17',
+            'Toussaint' => '11-01',
+            'Jour des Morts' => '11-02',
+            'Vertières' => '11-18',
+            'Noël' => '12-25',
+        ], $this->variableHolidays($year));
+    }
+
+    /** @return array<string, CarbonImmutable> */
+    protected function variableHolidays(int $year): array
+    {
+        $easter = $this->easter($year);
+
+        return [
+            'Carnaval/Mardi Gras' => $easter->subDays(47),
+            'Vendredi saint' => $easter->subDays(2),
+        ];
+    }
+}

tests/.pest/snapshots/Countries/HaitiTest/it_can_calculate_haiti_holidays.snap

@@ -0,0 +1,50 @@
+[
+    {
+        "name": "Nouvel an \/ Jour de l'Ind\u00e9pendance",
+        "date": "2024-01-01"
+    },
+    {
+        "name": "Jour des Aieux",
+        "date": "2024-01-02"
+    },
+    {
+        "name": "Carnaval\/Mardi Gras",
+        "date": "2024-02-13"
+    },
+    {
+        "name": "Vendredi saint",
+        "date": "2024-03-29"
+    },
+    {
+        "name": "F\u00eate du Travail \/ F\u00eate des Travailleurs",
+        "date": "2024-05-01"
+    },
+    {
+        "name": "Jour du Drapeau et de l'Universit\u00e9",
+        "date": "2024-05-18"
+    },
+    {
+        "name": "L'Assomption de Marie",
+        "date": "2024-08-15"
+    },
+    {
+        "name": "Anniversaire de la mort de Dessalines",
+        "date": "2024-10-17"
+    },
+    {
+        "name": "Toussaint",
+        "date": "2024-11-01"
+    },
+    {
+        "name": "Jour des Morts",
+        "date": "2024-11-02"
+    },
+    {
+        "name": "Verti\u00e8res",
+        "date": "2024-11-18"
+    },
+    {
+        "name": "No\u00ebl",
+        "date": "2024-12-25"
+    }
+]

tests/Countries/HaitiTest.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace Spatie\Holidays\Tests\Countries;
+
+use Carbon\CarbonImmutable;
+use Spatie\Holidays\Holidays;
+
+it('can calculate haiti holidays', function () {
+    CarbonImmutable::setTestNowAndTimezone('2024-01-01');
+
+    $holidays = Holidays::for(country: 'ht')->get();
+
+    expect($holidays)
+        ->toBeArray()
+        ->not()->toBeEmpty();
+
+    expect(formatDates($holidays))->toMatchSnapshot();
+});