Fix/metar reading (#353)

* Fix reading of the METAR information for AviationWeather. Fix the DI

* StyleCI fixes

app/Services/AirportService.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace App\Services;
+
+use App\Contracts\Metar as MetarProvider;
+use App\Contracts\Service;
+use App\Support\Metar;
+
+/**
+ * Class AnalyticsService
+ */
+class AirportService extends Service
+{
+    private $metarProvider;
+
+    public function __construct(
+        MetarProvider $metarProvider
+    ) {
+        $this->metarProvider = $metarProvider;
+    }
+
+    /**
+     * Return the METAR for a given airport
+     *
+     * @param $icao
+     *
+     * @return Metar|null
+     */
+    public function getMetar($icao): Metar
+    {
+        $metar = null;
+        $wind = null;
+        $raw_metar = $this->metarProvider->get_metar($icao);
+
+        if ($raw_metar && $raw_metar !== '') {
+            return new Metar($raw_metar);
+        }
+
+        return null;
+    }
+}