Add an InternalError type that piggybacks ValidationError

app/Exceptions/InternalError.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace App\Exceptions;
+
+use Illuminate\Validation\ValidationException;
+use Validator;
+use Log;
+
+/**
+ * Show an internal error, bug piggyback off of the validation
+ * exception type - this has a place to show up in the UI as a
+ * flash message.
+ * @package App\Exceptions
+ */
+class InternalError extends ValidationException
+{
+    protected const FLASH_FIELD_NAME = 'internal_error_message';
+
+    /**
+     * InternalError constructor.
+     * @param string|null $message
+     * @param null        $field
+     */
+    final public function __construct(string $message = null, $field = null)
+    {
+        Log::error($message);
+        $validator = Validator::make([], []);
+        $validator->errors()->add($field ?? static::FLASH_FIELD_NAME, $message);
+
+        parent::__construct($validator);
+    }
+}