FIX: Fix repeated reading of same tag

mopidy_pummeluff/registry.py

@@ -94,7 +94,7 @@ class RegistryDict(dict):
             os.makedirs(directory)
 
         with open(config, 'w') as f:
-            json.dump([tag.dict for tag in self.values()], f, indent=4)
+            json.dump([tag.as_dict() for tag in self.values()], f, indent=4)
 
     def register(self, tag_class, uid, alias=None, parameter=None):
         '''

mopidy_pummeluff/tags/base.py

@@ -25,6 +25,7 @@ class Tag:
         self.uid       = uid
         self.alias     = alias
         self.parameter = parameter
+        self.scanned   = None
 
     def __str__(self):
         '''
@@ -57,18 +58,6 @@ class Tag:
             args.append(self.parameter)
         self.action.__func__(*args)
 
-    @property
-    def dict(self):
-        '''
-        Dict representation of the tag.
-        '''
-        return {
-            'tag_class': self.__class__.__name__,
-            'uid': self.uid,
-            'alias': self.alias or '',
-            'parameter': self.parameter or ''
-        }
-
     @property
     def action(self):
         '''
@@ -84,6 +73,22 @@ class Tag:
         LOGGER.error(error, cls)
         raise NotImplementedError(error % cls)
 
+    def as_dict(self, include_scanned=False):
+        '''
+        Dict representation of the tag.
+        '''
+        data = {
+            'tag_class': self.__class__.__name__,
+            'uid': self.uid,
+            'alias': self.alias or '',
+            'parameter': self.parameter or '',
+        }
+
+        if include_scanned:
+            data['scanned'] = self.scanned
+
+        return data
+
     def validate(self):
         '''
         Validate parameter.

mopidy_pummeluff/threads/tag_reader.py

@@ -114,4 +114,5 @@ class TagReader(Thread):
             play_sound('fail.wav')
             tag = Tag(uid=uid)
 
+        tag.scanned      = time()
         TagReader.latest = tag

mopidy_pummeluff/web.py

@@ -54,7 +54,7 @@ class LatestHandler(RequestHandler):  # pylint: disable=abstract-method
                 'message': 'Scanned tag found',
             }
 
-            data.update(tag.dict)
+            data.update(tag.as_dict(include_scanned=True))
 
         self.set_header('Content-type', 'application/json')
         self.write(dumps(data))
@@ -80,7 +80,7 @@ class RegistryHandler(RequestHandler):  # pylint: disable=abstract-method
         tags_list = []
 
         for tag in REGISTRY.values():
-            tags_list.append(tag.dict)
+            tags_list.append(tag.as_dict())
 
         data = {
             'success': True,
@@ -122,7 +122,7 @@ class RegisterHandler(RequestHandler):  # pylint: disable=abstract-method
                 'message': 'Tag successfully registered',
             }
 
-            data.update(tag.dict)
+            data.update(tag.as_dict())
 
         except ValueError as ex:
             self.set_status(400)