WIP: add /api/v1/followed_tags endpoint

activities/models/hashtag.py

@@ -8,6 +8,7 @@ from django.utils import timezone
 
 from core.models import Config
 from stator.models import State, StateField, StateGraph, StatorModel
+from users.models import Identity
 
 
 class HashtagStates(StateGraph):
@@ -73,6 +74,9 @@ class HashtagQuerySet(models.QuerySet):
             models.Q(hashtag=hashtag) | models.Q(aliases__contains=hashtag)
         )
 
+    def followed_by(self, identity: Identity):
+        return self.filter(followers__identity=identity)
+
 
 class HashtagManager(models.Manager):
     def get_queryset(self):
@@ -84,6 +88,9 @@ class HashtagManager(models.Manager):
     def hashtag_or_alias(self, hashtag: str):
         return self.get_queryset().hashtag_or_alias(hashtag)
 
+    def followed_by(self, identity: Identity):
+        return self.get_queryset().followed_by(identity)
+
 
 class Hashtag(StatorModel):
 

api/views/tags.py

@@ -1,8 +1,10 @@
 from django.http import HttpRequest
 from hatchway import api_view
 
+from activities.models import Hashtag
 from api import schemas
 from api.decorators import scope_required
+from api.pagination import MastodonPaginator, PaginatingApiResponse, PaginationResult
 
 
 @scope_required("read:follows")
@@ -14,5 +16,19 @@ def followed_tags(
     min_id: str | None = None,
     limit: int = 100,
 ) -> list[schemas.Tag]:
-    # We don't implement this yet
-    return []
+    queryset = Hashtag.objects.followed_by(request.identity)
+    paginator = MastodonPaginator()
+    # TODO: this fails due to the Hashtag model not having an `id` field
+    pager: PaginationResult[Hashtag] = paginator.paginate(
+        queryset,
+        min_id=min_id,
+        max_id=max_id,
+        since_id=since_id,
+        limit=limit,
+    )
+    return PaginatingApiResponse(
+        # TODO: add something like map_from_post to schemas.Tag
+        schemas.Tag.map_from_post(pager.results, request.identity),
+        request=request,
+        include_params=["limit"],
+    )