From 431862b35c4a31f7209844118ead74b1e4aa97a5 Mon Sep 17 00:00:00 2001
From: Phil Bates <phil.bates@theshopworks.com>
Date: Thu, 18 Jan 2024 13:47:21 +0000
Subject: [PATCH] Translation: Log a warning for any unknown lang keys

Based on https://laravel.com/docs/10.x/localization#handling-missing-translation-strings.

Use "resolving" callback instead of using the Log facade / the 'log'
service because if we do that it will force the deferred
LogServiceProvider to be registered on every request, essentially
making it not deferred any more.

Similar to how Model::shouldBeStrict() is only called when not
in production, we only throw an exception when not in production.
---
 app/Providers/AppServiceProvider.php | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/app/Providers/AppServiceProvider.php b/app/Providers/AppServiceProvider.php
index ef86559..2db790e 100644
--- a/app/Providers/AppServiceProvider.php
+++ b/app/Providers/AppServiceProvider.php
@@ -5,7 +5,10 @@
 namespace App\Providers;
 
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\Log;
 use Illuminate\Support\ServiceProvider;
+use Illuminate\Translation\Translator;
+use OutOfBoundsException;
 
 class AppServiceProvider extends ServiceProvider
 {
@@ -14,7 +17,19 @@ class AppServiceProvider extends ServiceProvider
      */
     public function register(): void
     {
-        //
+        $this->app->resolving('translator', static function (Translator $translator): void {
+            $translator->handleMissingKeysUsing(static function (string $key): string {
+                $message = "Missing translation key [{$key}] detected.";
+
+                if (!$this->isProduction()) {
+                    throw new OutOfBoundsException($message);
+                }
+
+                Log::warning($message);
+
+                return $key;
+            });
+        });
     }
 
     /**