Add Guatemala holidays (#106)

* add: guatemalan holidays

* Add guatemalan holidays

---------

Co-authored-by: ejchiroy <[email protected]>

src/Countries/Guatemala.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace Spatie\Holidays\Countries;
+
+use Carbon\CarbonImmutable;
+
+class Guatemala extends Country
+{
+    public function countryCode(): string
+    {
+        return 'gt';
+    }
+
+    protected function allHolidays(int $year): array
+    {
+        return array_merge([
+            'Año Nuevo' => '01-01',
+            'Día de los Trabajadores' => '05-01',
+            'Día del Ejército' => '06-31',
+            'Día de la Independencia' => '09-15',
+            'Día de la Revolución' => '10-20',
+            'Día de Todos los Santos' => '11-01',
+            'Navidad' => '12-25',
+        ], $this->variableHolidays($year));
+    }
+
+    /** @return array<string, CarbonImmutable> */
+    protected function variableHolidays(int $year): array
+    {
+        $easter = $this->easter($year);
+
+        return [
+            'Jueves Santo' => $easter->subDays(3),
+            'Viernes Santo' => $easter->subDays(2),
+            'Sábado Santo' => $easter->subDays(1),
+        ];
+    }
+}

tests/.pest/snapshots/Countries/GuatemalaTest/it_can_calculate_guatemalan_holidays.snap

@@ -0,0 +1,42 @@
+[
+    {
+        "name": "A\u00f1o Nuevo",
+        "date": "2024-01-01"
+    },
+    {
+        "name": "Jueves Santo",
+        "date": "2024-03-28"
+    },
+    {
+        "name": "Viernes Santo",
+        "date": "2024-03-29"
+    },
+    {
+        "name": "S\u00e1bado Santo",
+        "date": "2024-03-30"
+    },
+    {
+        "name": "D\u00eda de los Trabajadores",
+        "date": "2024-05-01"
+    },
+    {
+        "name": "D\u00eda del Ej\u00e9rcito",
+        "date": "2024-07-01"
+    },
+    {
+        "name": "D\u00eda de la Independencia",
+        "date": "2024-09-15"
+    },
+    {
+        "name": "D\u00eda de la Revoluci\u00f3n",
+        "date": "2024-10-20"
+    },
+    {
+        "name": "D\u00eda de Todos los Santos",
+        "date": "2024-11-01"
+    },
+    {
+        "name": "Navidad",
+        "date": "2024-12-25"
+    }
+]

tests/Countries/GuatemalaTest.php

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