feat: migrate activities to views

Migrate activities CLI action to view pattern

Author: rafaltrojniak

src/hamster-cli.py

@@ -231,6 +231,9 @@ class HamsterView(abc.ABC):
     def current(self, action):
         pass
 
+    def activities(self, facts):
+        pass
+
 class HamsterViewText(HamsterView):
 
     def current(self, action):
@@ -240,6 +243,10 @@ def current(self, action):
         else:
             print((_("No activity")))
 
+    def activities(self, facts):
+        for activity in facts:
+            print("{}@{}".format(activity['name'], activity['category']))
+
 class HamsterViewJSON(HamsterView):
 
     def _dump_fact(self, fact):
@@ -259,6 +266,10 @@ def current(self, action):
             output=self._dump_fact(action)
         print(json.dumps(output))
 
+    def activities(self, facts):
+        output = [{"name":activity['name'], "category":activity['category']}
+            for activity in facts]
+        print(json.dumps(output))
 class HamsterCli(object):
     """Command line interface."""
 
@@ -335,8 +346,7 @@ def _activities(self, search=""):
     def activities(self, *args):
         '''Print the names of all the activities.'''
         search = args[0] if args else ""
-        for activity in self.storage.get_activities(search):
-            print("{}@{}".format(activity['name'], activity['category']))
+        self.view.activities(self.storage.get_activities(search))
 
     def categories(self, *args):
         '''Print the names of all the categories.'''