feat(event): add EventDateInfoFormatter to format event date messages and implement related tests

app/Domains/Event/Services/EventDateInfoFormatter.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace App\Domains\Event\Services;
+
+use App\Domains\Event\Enums\EventDateChangeType;
+use App\Domains\Event\Models\EventDate;
+use App\Domains\Event\Models\EventDateChange;
+use Illuminate\Support\Collection;
+
+class EventDateInfoFormatter
+{
+    /** @param Collection<int, EventDateChange> $changes */
+    public function format(EventDate $eventDate, Collection $changes): ?string
+    {
+        $messages = collect();
+
+        if ($eventDate->suspended_at !== null) {
+            $messages->push('Esta fecha fue cancelada.');
+        }
+
+        $sourceDates = $changes
+            ->where('change_type', EventDateChangeType::Rescheduled)
+            ->where('destination_event_date_id', $eventDate->getKey())
+            ->pluck('previous_date')
+            ->filter()
+            ->map(fn ($date): string => $date->format('d/m/Y'))
+            ->unique()
+            ->values();
+
+        if ($sourceDates->isNotEmpty()) {
+            $verb = $sourceDates->count() === 1 ? 'se reprogramó' : 'se reprogramaron';
+            $messages->push("{$sourceDates->join(', ', ' y ')} {$verb} para este día.");
+        }
+
+        return $messages->isEmpty() ? null : $messages->join(' ');
+    }
+}