Make monolog/monolog dependency really optional

composer.json

@@ -15,8 +15,7 @@
     "php": "^8.1",
     "illuminate/cache": "^10.0 || ^11.0",
     "illuminate/console": "^10.0 || ^11.0",
-    "illuminate/support": "^10.0 || ^11.0",
-    "monolog/monolog": "^3.0"
+    "illuminate/support": "^10.0 || ^11.0"
   },
   "require-dev": {
     "friendsofphp/php-cs-fixer": "^3.50",

config/geoip.php

@@ -12,6 +12,8 @@
     | Here you may configure the log settings for when a location is not found
     | for the IP provided.
     |
+    | Requires Monolog to be installed: `composer install monolog/monolog`
+    |
     */
 
     'log_failures' => true,

src/GeoIP.php

@@ -4,10 +4,8 @@
 
 namespace InteractionDesignFoundation\GeoIP;
 
-use Monolog\Logger;
 use Illuminate\Support\Arr;
 use Illuminate\Cache\CacheManager;
-use Monolog\Handler\StreamHandler;
 
 /**
  * @psalm-import-type LocationArray from \InteractionDesignFoundation\GeoIP\Location
@@ -148,8 +146,16 @@ private function find($ip = null): Location
                 return $location;
             } catch (\Exception $e) {
                 if ($this->config('log_failures', true) === true) {
-                    $log = new Logger('geoip');
-                    $log->pushHandler(new StreamHandler(storage_path('logs/geoip.log'), Logger::ERROR));
+                    if (! class_exists(\Monolog\Logger::class)) {
+                        throw new \RuntimeException(
+                            'monolog/monolog composer package is not installed, but required with the enabled geoip.log_failures config option.',
+                            0,
+                            $e
+                        );
+                    }
+
+                    $log = new \Monolog\Logger('geoip');
+                    $log->pushHandler(new \Monolog\Handler\StreamHandler(storage_path('logs/geoip.log'), \Monolog\Logger::ERROR));
                     $log->error($e);
                 }
             }