Fixes in how METARs are parsed

app/Interfaces/Metar.php

@@ -39,6 +39,9 @@ abstract class Metar
         $raw_metar = Cache::remember($key, $cache['time'], function () use ($icao) {
             try {
                 return $this->metar($icao);
+            } catch (\GuzzleHttp\Exception\GuzzleException $e) {
+                Log::error('Error getting METAR: '.$e->getMessage(), $e->getTrace());
+                return '';
             } catch (\Exception $e) {
                 Log::error('Error getting METAR: '. $e->getMessage(), $e->getTrace());
                 return '';

app/Services/Metar/AviationWeather.php

@@ -20,12 +20,13 @@ class AviationWeather extends Metar
      * Implement the METAR - Return the string
      * @param $icao
      * @return string
+     * @throws \GuzzleHttp\Exception\GuzzleException
      */
     protected function metar($icao): string
     {
         $url = static::METAR_URL.$icao;
         $res = Http::get($url, []);
         $xml = simplexml_load_string($res);
-        return $xml->data->METAR->raw_text;
+        return $xml->data->METAR->raw_text->__toString();
     }
 }

app/Support/Http.php

@@ -16,6 +16,7 @@ class Http
      * @param       $uri
      * @param array $opts
      * @return string
+     * @throws \GuzzleHttp\Exception\GuzzleException
      */
     public static function get($uri, array $opts)
     {

app/Widgets/Weather.php

@@ -31,9 +31,18 @@ class Weather extends Widget
     protected function determineCategory($metar): string
     {
         $category = 'VFR';
-        $visibility = $metar->getVisibility()->getVisibility()->getValue();
+
+        $visibility = 10; // assume it's ok and VFR
+        $vis = $metar->getVisibility();
+        if($vis) {
+            $vis = $vis->getVisibility();
+            if($vis) {
+                $visibility = $vis->getValue();
+            }
+        }
+
         $ceiling = $metar->getClouds();
-        if ($ceiling) {
+        if ($ceiling && count($ceiling) > 0) {
             $ceiling = $ceiling[0]->getBaseHeight()->getValue();
         } else {
             $ceiling = 1000;
@@ -58,13 +67,19 @@ class Weather extends Widget
         $metar_class = new $klass;
         $raw_metar = $metar_class->get_metar($this->config['icao']);
 
-        // Run through this parser
-        $decoder = new MetarDecoder();
-        $metar = $decoder->parse($raw_metar);
+        if(!$raw_metar || $raw_metar === '') {
+            $category = null;
+            $metar = null;
+        } else {
+            // Run through this parser
+            $decoder = new MetarDecoder();
+            $metar = $decoder->parse($raw_metar);
+
 
-        // Determine the flight category that's allowed
-        // Just check if we need to be under IFR conditions
-        $category = $this->determineCategory($metar);
+            // Determine the flight category that's allowed
+            // Just check if we need to be under IFR conditions
+            $category = $this->determineCategory($metar);
+        }
 
         return view('widgets.weather', [
             'config'    => $this->config,