feat: implement tour listing with sorting and pagination

app/Models/Tour.php

@@ -7,6 +7,8 @@
 namespace App\Models;
 
 use Carbon\Carbon;
+use Illuminate\Database\Eloquent\Attributes\Scope;
+use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Collection;
 use Illuminate\Database\Eloquent\Model;
 
@@ -50,6 +52,26 @@ class Tour extends Model
 		'file_id',
 		'tour_type'
 	];
+    #[Scope]
+    protected function applySort(Builder $query, ?string $sort = null): void
+    {
+        switch ($sort) {
+
+            case 'lowest':
+                $query->withMin('tourDepartures', 'price')
+                    ->orderBy('tour_departures_min_price');
+                break;
+
+            case 'highest':
+                $query->withMax('tourDepartures', 'price')
+                    ->orderByDesc('tour_departures_max_price');
+                break;
+
+            default:
+                $query->orderByDesc('id');
+                break;
+        }
+    }
 
 	public function flight()
 	{