Fixes (#435)

* Add flight level field to PIREP field closes #401

* Default value for distance 0 closes #400

* Block airline deletion if assets exist #367

* Formatting

* Move some of the base exception classes

* Fix skin references to use settings table

* Set default for theme name if setting is wrong

app/Exceptions/Converters/GenericExceptionAbstract.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Exceptions\Converters;
+
+use App\Exceptions\AbstractHttpException;
+use Exception;
+
+class GenericExceptionAbstract extends AbstractHttpException
+{
+    private $exception;
+
+    public function __construct(Exception $exception)
+    {
+        $this->exception = $exception;
+        parent::__construct(
+            503,
+            $exception->getMessage()
+        );
+    }
+
+    /**
+     * Return the RFC 7807 error type (without the URL root)
+     */
+    public function getErrorType(): string
+    {
+        return 'internal-error';
+    }
+
+    /**
+     * Get the detailed error string
+     */
+    public function getErrorDetails(): string
+    {
+        return $this->getMessage();
+    }
+
+    /**
+     * Return an array with the error details, merged with the RFC7807 response
+     */
+    public function getErrorMetadata(): array
+    {
+        $metadata = [];
+        $metadata['original_exception'] = get_class($this->exception);
+
+        // Only add trace if in dev
+        if (config('app.env') === 'dev') {
+            $metadata['trace'] = $this->exception->getTrace()[0];
+        }
+
+        return $metadata;
+    }
+}