method 'complete': move end_time_dict to an argument

get_streams should return all tags

influx.py

@@ -559,16 +559,15 @@ class InfluxDBWrapper:
         return result
 
     @staticmethod
-    def complete(curve_dict, end_time=0, tag='stream'):
+    def complete(curve_dict, end_time=0, tag=None):
         """complete to end_time
 
-        if end_time is not given, is is the max timestamp within the same stream
+        if tag is given, end_time is a dict <tag value> of <end time>
         """
-        end_time_dict = {}
-        if not end_time:
-            for curve in curve_dict.values():
-                key = curve.tags.get(tag)
-                end_time_dict[key] = max(end_time_dict.get(key, 0), curve[-1][0])
+        if tag is None:
+            end_time_dict = {}
+        else:
+            end_time_dict, end_time = end_time, 0
         for curve in curve_dict.values():
             if len(curve):
                 tlast, value = curve[-1]
@@ -651,7 +650,7 @@ class InfluxDBWrapper:
         for stream, entries in all_entries.items():
             entry = sorted(entries, key=lambda r: r[0])[-1]
             if entry[1]:  # on=True
-                result[stream] = entry.tags.get('instrument', '0')
+                result[stream] = entry.tags
         return result
 
     def set_instrument(self, stream, value, ts=None, guess=True, **tags):