Added Colombia Holidays (#55)

* Adding Colombia Holidays

Added the Colombia's holidays. There's a situation with some holidays due to the "Emiliany Law" they are moved to the following monday.

* Adding Colombia Holidays

Added the Colombia's holidays. There's a situation with some holidays due to the "Emiliany Law" they are moved to the following monday.

* Update Colombia.php

Deleted the line as suggested by @Nielsvanpach

* Update Colombia.php

* Added changes to Colombia.php and to the test file

- Suggestions from @luisprmat were incorporated.
- All the work of emiliani holiday generation was included into the emilianiHoliday method to achieve code readability
- The order of the holidays was updated to ensure that the next emiliani holiday that appears can be included at the end of the list.
- The test was updated because it's "colombian holidays" not "colombia holidays"

src/Countries/Colombia.php

@@ -0,0 +1,58 @@
+<?php
+
+namespace Spatie\Holidays\Countries;
+
+use Carbon\CarbonImmutable;
+
+class Colombia extends Country
+{
+    public function countryCode(): string
+    {
+        return 'co';
+    }
+
+    protected function allHolidays(int $year): array
+    {
+        return array_merge([
+            'Año Nuevo' => '01-01',
+            'Día del Trabajo' => '05-01',
+            'Día de la independencia' => '07-20',
+            'Batalla de Boyacá' => '08-07',
+            'Inmaculada Concepción' => '12-08',
+            '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),
+            'Ascención de Jesús' => $easter->addDays(43),
+            'Corpus Christi' => $easter->addDays(64),
+            'Sagrado corazón de Jesús' => $easter->addDays(71),
+            'Reyes Magos' => $this->emilianiHoliday($year, 1, 6),
+            'Día de San José' => $this->emilianiHoliday($year, 3, 19),
+            'San Pedro y San Pablo' => $this->emilianiHoliday($year, 6, 29),
+            'Asunción de la Virgen' => $this->emilianiHoliday($year, 8, 15),
+            'Día de la raza' => $this->emilianiHoliday($year, 10, 12),
+            'Todos los santos' => $this->emilianiHoliday($year, 11, 1),
+            'Independencia de Cartagena' => $this->emilianiHoliday($year, 11, 11),
+
+        ];
+    }
+
+    /** @return CarbonImmutable */
+    private function emilianiHoliday(int $year, int $month, int $day): CarbonImmutable
+    {
+        $dateObj = CarbonImmutable::createFromDate($year, $month, $day, 'America/Bogota')->startOfDay();
+        if ($dateObj->is('Monday')) {
+            return $dateObj;
+        } else {
+            return $dateObj->next('Monday');
+        }
+    }
+}

tests/.pest/snapshots/Countries/ColombiaTest/it_can_calculate_colombian_holidays.snap

@@ -0,0 +1,74 @@
+[
+    {
+        "name": "A\u00f1o Nuevo",
+        "date": "2024-01-01"
+    },
+    {
+        "name": "Reyes Magos",
+        "date": "2024-01-08"
+    },
+    {
+        "name": "D\u00eda de San Jos\u00e9",
+        "date": "2024-03-25"
+    },
+    {
+        "name": "Jueves Santo",
+        "date": "2024-03-28"
+    },
+    {
+        "name": "Viernes Santo",
+        "date": "2024-03-29"
+    },
+    {
+        "name": "D\u00eda del Trabajo",
+        "date": "2024-05-01"
+    },
+    {
+        "name": "Ascenci\u00f3n de Jes\u00fas",
+        "date": "2024-05-13"
+    },
+    {
+        "name": "Corpus Christi",
+        "date": "2024-06-03"
+    },
+    {
+        "name": "Sagrado coraz\u00f3n de Jes\u00fas",
+        "date": "2024-06-10"
+    },
+    {
+        "name": "San Pedro y San Pablo",
+        "date": "2024-07-01"
+    },
+    {
+        "name": "D\u00eda de la independencia",
+        "date": "2024-07-20"
+    },
+    {
+        "name": "Batalla de Boyac\u00e1",
+        "date": "2024-08-07"
+    },
+    {
+        "name": "Asunci\u00f3n de la Virgen",
+        "date": "2024-08-19"
+    },
+    {
+        "name": "D\u00eda de la raza",
+        "date": "2024-10-14"
+    },
+    {
+        "name": "Todos los santos",
+        "date": "2024-11-04"
+    },
+    {
+        "name": "Independencia de Cartagena",
+        "date": "2024-11-11"
+    },
+    {
+        "name": "Inmaculada Concepci\u00f3n",
+        "date": "2024-12-08"
+    },
+    {
+        "name": "Navidad",
+        "date": "2024-12-25"
+    }
+]

tests/Countries/ColombiaTest.php

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