Check Aircraft Availability (#1177)

* Check Aircraft Availability before Prefile

Check if the aircraft is available for flight (State : Parked / On Ground). If not throw new exception AircraftNotAvailable

* Add Exception

AircraftNotAvailable exception, used by PirepService during prefile checks.

app/Exceptions/AircraftNotAvailable.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Exceptions;
+
+use App\Models\Aircraft;
+
+class AircraftNotAvailable extends AbstractHttpException
+{
+    public const MESSAGE = 'The aircraft is not available for flight';
+
+    private $aircraft;
+
+    public function __construct(Aircraft $aircraft)
+    {
+        $this->aircraft = $aircraft;
+        parent::__construct(
+            400,
+            static::MESSAGE
+        );
+    }
+
+    public function getErrorType(): string
+    {
+        return 'aircraft-not-available';
+    }
+
+    public function getErrorDetails(): string
+    {
+        return $this->getMessage();
+    }
+
+    public function getErrorMetadata(): array
+    {
+        return [
+            'aircraft_id' => $this->aircraft->id,
+        ];
+    }
+}