feat: Added holiday greetings

app/Services/GreetingService.php

@@ -7,18 +7,27 @@
 use Carbon\Carbon;
 
 /**
- * Service for generating time-appropriate greetings.
+ * Service for generating time-appropriate and holiday greetings.
  *
  * Provides methods to automatically determine the appropriate
- * greeting based on the time of day in a given timezone.
+ * greeting based on the time of day or a holiday in a given timezone.
  */
 class GreetingService
 {
     /**
-     * Get an automatic greeting based on the current time.
+     * Get an automatic greeting based on the current time or holiday.
      */
     public function auto(string $timezone = 'UTC'): string
     {
+        $currentDate = Carbon::now($timezone)->format('Y-m-d');
+
+        // Check if today is a holiday
+        $holidayGreeting = $this->holidayGreeting($currentDate);
+        if ($holidayGreeting !== null) {
+            return $holidayGreeting;
+        }
+
+        // Otherwise, return a time-based greeting
         $hour = Carbon::now($timezone)->hour;
 
         if ($hour < 12) {
@@ -55,4 +64,21 @@ private function evening(): string
     {
         return __('Good evening');
     }
+
+    /**
+     * Get the holiday greeting for a specific date.
+     */
+    private function holidayGreeting(string $date): ?string
+    {
+        $currentYear = Carbon::now()->year;
+        $holidays = [
+            "{$currentYear}-01-01" => (string) __('Happy New Year'),
+            "{$currentYear}-04-01" => (string) __("Happy April Fools' Day"),
+            "{$currentYear}-12-25" => (string) __('Merry Christmas'),
+            "{$currentYear}-12-26" => (string) __('Happy Boxing Day'),
+            "{$currentYear}-10-31" => (string) __('Happy Halloween'),
+        ];
+
+        return $holidays[$date] ?? null;
+    }
 }

tests/Unit/Services/GreetingTest.php

@@ -38,3 +38,48 @@
 
     Carbon::setTestNow();
 });
+
+it('returns holiday greeting on Christmas', function (): void {
+    $currentYear = Carbon::now()->year;
+    Carbon::setTestNow(Carbon::createMidnightDate($currentYear, 12, 25, 'UTC'));
+
+    expect(Greeting::auto('UTC'))->toBe('Merry Christmas');
+
+    Carbon::setTestNow();
+});
+
+it('returns holiday greeting on New Year', function (): void {
+    $currentYear = Carbon::now()->year;
+    Carbon::setTestNow(Carbon::createMidnightDate($currentYear, 1, 1, 'UTC'));
+
+    expect(Greeting::auto('UTC'))->toBe('Happy New Year');
+
+    Carbon::setTestNow();
+});
+
+it('returns holiday greeting on Halloween', function (): void {
+    $currentYear = Carbon::now()->year;
+    Carbon::setTestNow(Carbon::createMidnightDate($currentYear, 10, 31, 'UTC'));
+
+    expect(Greeting::auto('UTC'))->toBe('Happy Halloween');
+
+    Carbon::setTestNow();
+});
+
+it('returns holiday greeting on Boxing Day', function (): void {
+    $currentYear = Carbon::now()->year;
+    Carbon::setTestNow(Carbon::createMidnightDate($currentYear, 12, 26, 'UTC'));
+
+    expect(Greeting::auto('UTC'))->toBe('Happy Boxing Day');
+
+    Carbon::setTestNow();
+});
+
+it("returns holiday greeting on April Fools' Day", function (): void {
+    $currentYear = Carbon::now()->year;
+    Carbon::setTestNow(Carbon::createMidnightDate($currentYear, 4, 1, 'UTC'));
+
+    expect(Greeting::auto('UTC'))->toBe("Happy April Fools' Day");
+
+    Carbon::setTestNow();
+});