LogTrigger: fixed substrings output

cpu_governor_auto_adjust/triggers/log.py

@@ -20,9 +20,15 @@ class TriggerString:
         
     @cached_property
     def substrings(self) -> list[str]:
+        _substrings = []
         if 'substrings' in self.json_data:
-            return self.json_data['substrings']['substring']
-        return []
+            if isinstance(self.json_data['substrings']['substring'], list):
+                _substrings.extend(self.json_data['substrings'])
+            elif isinstance(self.json_data['substrings']['substring'], str):
+                _substrings.append(self.json_data['substrings']['substring'])
+            else:
+                raise ValueError("substrings must be a list or a string")
+        return _substrings
 
     @cached_property
     def condition(self) -> str:
@@ -69,12 +75,15 @@ class LogTrigger(Trigger):
         self.timestamp_last_active_change = datetime.now()
         if not self.active:
             self.log.info("activating trigger, log file: %s, trigger strings: %s, governor: %s", self.file, self.trigger_strings, self.governor.name)
-        self.active = True
+            self.active = True
+            self.log.info("Statistics: %s", self.get_statistic_info())
+        
         
     def set_inactive(self) -> None:
         if self.active:
             self.log.info("deactivating trigger, log file: %s, trigger strings: %s, governor: %s", self.file, self.trigger_strings, self.governor.name)
-        self.active = False
+            self.active = False
+            self.log.info("Statistics: %s", self.get_statistic_info())
     
     def _process_line(self, line: str) -> None:
         for trigger_string in self.trigger_strings: