From 9a07e99fd211cb6198e1aeb28ac8d366ac67b5f5 Mon Sep 17 00:00:00 2001
From: Kyrian Obikwelu <koshnawaza@gmail.com>
Date: Tue, 23 Jan 2024 12:30:28 +0100
Subject: [PATCH 1/2] Add Nigerian Holidays

---
 src/Countries/Nigeria.php                     | 45 +++++++++++++++++++
 .../it_can_calculate_nigerian_holidays.snap   | 34 ++++++++++++++
 tests/Countries/NigeriaTest.php               | 18 ++++++++
 3 files changed, 97 insertions(+)
 create mode 100644 src/Countries/Nigeria.php
 create mode 100644 tests/.pest/snapshots/Countries/NigeriaTest/it_can_calculate_nigerian_holidays.snap
 create mode 100644 tests/Countries/NigeriaTest.php

diff --git a/src/Countries/Nigeria.php b/src/Countries/Nigeria.php
new file mode 100644
index 000000000..e2a49ff1c
--- /dev/null
+++ b/src/Countries/Nigeria.php
@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Spatie\Holidays\Countries;
+
+use Carbon\CarbonImmutable;
+
+class Nigeria extends Country
+{
+    public function countryCode(): string
+    {
+        return 'ng';
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function allHolidays(int $year): array
+    {
+        return array_merge([
+            'New Year' => '01-01',
+            'Workers Day' => '05-01',
+            'Democracy Day' => '06-12',
+            'Independence Day' => '10-01',
+            'Christmas Day' => '12-25',
+            'Boxing Day' => '12-26',
+        ], $this->variableHolidays($year));
+    }
+
+    /** @return array<string, CarbonImmutable> */
+    protected function variableHolidays(int $year): array
+    {
+        $easter = $this->easter($year);
+
+        // Holidays like Eid al-Fitr and Eid al-Adha are based on the Islamic calendar
+        // which is determined by the sighting of the moon. This makes it impossible
+        // to calculate these holidays in advance.
+
+        return [
+            'Good Friday' => $easter->subDays(2),
+            'Easter Monday' => $easter->addDay(),
+        ];
+    }
+}
diff --git a/tests/.pest/snapshots/Countries/NigeriaTest/it_can_calculate_nigerian_holidays.snap b/tests/.pest/snapshots/Countries/NigeriaTest/it_can_calculate_nigerian_holidays.snap
new file mode 100644
index 000000000..d53c1b6b0
--- /dev/null
+++ b/tests/.pest/snapshots/Countries/NigeriaTest/it_can_calculate_nigerian_holidays.snap
@@ -0,0 +1,34 @@
+[
+    {
+        "name": "New Year",
+        "date": "2024-01-01"
+    },
+    {
+        "name": "Good Friday",
+        "date": "2024-03-29"
+    },
+    {
+        "name": "Easter Monday",
+        "date": "2024-04-01"
+    },
+    {
+        "name": "Workers Day",
+        "date": "2024-05-01"
+    },
+    {
+        "name": "Democracy Day",
+        "date": "2024-06-12"
+    },
+    {
+        "name": "Independence Day",
+        "date": "2024-10-01"
+    },
+    {
+        "name": "Christmas Day",
+        "date": "2024-12-25"
+    },
+    {
+        "name": "Boxing Day",
+        "date": "2024-12-26"
+    }
+]
\ No newline at end of file
diff --git a/tests/Countries/NigeriaTest.php b/tests/Countries/NigeriaTest.php
new file mode 100644
index 000000000..6a1b83244
--- /dev/null
+++ b/tests/Countries/NigeriaTest.php
@@ -0,0 +1,18 @@
+<?php
+
+declare(strict_types=1);
+
+use Carbon\CarbonImmutable;
+use Spatie\Holidays\Holidays;
+
+it('can calculate nigerian holidays', function () {
+    CarbonImmutable::setTestNowAndTimezone('2024-01-01');
+
+    $holidays = Holidays::for(country: 'ng')->get();
+
+    expect($holidays)
+        ->toBeArray()
+        ->not()->toBeEmpty();
+
+    expect(formatDates($holidays))->toMatchSnapshot();
+});

From 0d2f100eebd5f70bf53ee3c53b43e5afe163c229 Mon Sep 17 00:00:00 2001
From: Kyrian Obikwelu <koshnawaza@gmail.com>
Date: Tue, 23 Jan 2024 12:36:22 +0100
Subject: [PATCH 2/2] Added historical data for democracy day

---
 src/Countries/Nigeria.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Countries/Nigeria.php b/src/Countries/Nigeria.php
index e2a49ff1c..2dd55081e 100644
--- a/src/Countries/Nigeria.php
+++ b/src/Countries/Nigeria.php
@@ -21,7 +21,6 @@ protected function allHolidays(int $year): array
         return array_merge([
             'New Year' => '01-01',
             'Workers Day' => '05-01',
-            'Democracy Day' => '06-12',
             'Independence Day' => '10-01',
             'Christmas Day' => '12-25',
             'Boxing Day' => '12-26',
@@ -33,11 +32,16 @@ protected function variableHolidays(int $year): array
     {
         $easter = $this->easter($year);
 
+        $democracyDay = $year > 2018
+            ? new CarbonImmutable("$year-06-12", 'Africa/Lagos')
+            : new CarbonImmutable("$year-05-29", 'Africa/Lagos');
+
         // Holidays like Eid al-Fitr and Eid al-Adha are based on the Islamic calendar
         // which is determined by the sighting of the moon. This makes it impossible
         // to calculate these holidays in advance.
 
         return [
+            'Democracy Day' => $democracyDay,
             'Good Friday' => $easter->subDays(2),
             'Easter Monday' => $easter->addDay(),
         ];