Add log levels

- added log levels to `LogEvent` class

Author: Bruno Francisco

src/Events/LogEvent.php

@@ -6,6 +6,33 @@ class LogEvent extends BaseEvent implements Event
 {
     const EVENT_TYPE = "App\Models\Session\Event\EventLog";
 
+    const LOG_LEVEL_EMERGENCY = 'emergency';
+
+    const LOG_LEVEL_ALERT = 'alert';
+
+    const LOG_LEVEL_CRITICAL = 'critical';
+
+    const LOG_LEVEL_ERROR = 'error';
+
+    const LOG_LEVEL_WARNING = 'warning';
+
+    const LOG_LEVEL_NOTICE = 'notice';
+
+    const LOG_LEVEL_INFORMATIONAL = 'informational';
+
+    const LOG_LEVEL_DEBUG = 'debug';
+
+    const LOG_LEVELS = [
+        self::LOG_LEVEL_EMERGENCY,
+        self::LOG_LEVEL_ALERT,
+        self::LOG_LEVEL_CRITICAL,
+        self::LOG_LEVEL_ERROR,
+        self::LOG_LEVEL_WARNING,
+        self::LOG_LEVEL_NOTICE,
+        self::LOG_LEVEL_INFORMATIONAL,
+        self::LOG_LEVEL_DEBUG,
+    ];
+
     public function create(string $sessionId, string $sessionSecret, array $data): void
     {
         if (! isset($data['level'])) {