API refinements for activity stream

api/funkwhale_api/history/serializers.py

@@ -1,9 +1,37 @@
 from rest_framework import serializers
 
+from funkwhale_api.activity import serializers as activity_serializers
 from funkwhale_api.music.serializers import TrackSerializerNested
+from funkwhale_api.music.serializers import TrackActivitySerializer
+from funkwhale_api.users.serializers import UserActivitySerializer
+
 from . import models
 
 
+class ListeningActivitySerializer(activity_serializers.ModelSerializer):
+    type = serializers.SerializerMethodField()
+    object = TrackActivitySerializer(source='track')
+    actor = UserActivitySerializer(source='user')
+    published = serializers.DateTimeField(source='end_date')
+
+    class Meta:
+        model = models.Listening
+        fields = [
+            'id',
+            'local_id',
+            'object',
+            'type',
+            'actor',
+            'published'
+        ]
+
+    def get_actor(self, obj):
+        return UserActivitySerializer(obj.user).data
+
+    def get_type(self, obj):
+        return 'Listen'
+
+
 class ListeningSerializer(serializers.ModelSerializer):
 
     class Meta: