feat: shuffle recommendations

src/adapter/external/graphql/operation/recommentaions.py

@@ -0,0 +1,36 @@
+from __future__ import annotations
+
+from random import shuffle
+
+import strawberry as sb
+
+import src.domain.model as domain
+from src.adapter.external.graphql import scalar
+from src.adapter.external.graphql.tool.context import Info
+from src.adapter.external.graphql.type.participant import ParticipantType
+
+
+@sb.type
+class RecommendationsQuery:
+    @sb.field
+    async def recommendations(
+        root: RecommendationsQuery,
+        info: Info[RecommendationsQuery],
+        user_id: scalar.ObjectID,
+        allocation_id: scalar.ObjectID,
+    ) -> list[ParticipantType]:  # type: ignore
+        participants = await info.context.participant.service.read_all()
+
+        selected = [
+            participant.id
+            for participant in participants
+            if participant.user_id != user_id
+            and participant.allocation_id == allocation_id
+            and participant.state == domain.ParticipantState.ACTIVE
+        ]
+        if not selected:
+            return []
+
+        shuffle(selected)
+
+        return await info.context.participant.loader.load_many(selected[:10])

src/adapter/external/graphql/schema.py

@@ -18,6 +18,7 @@
     PreferenceMutation,
     PreferenceQuery,
 )
+from src.adapter.external.graphql.operation.recommentaions import RecommendationsQuery
 from src.adapter.external.graphql.operation.room import RoomMutation, RoomQuery
 from src.adapter.external.graphql.operation.user import UserMutation, UserQuery
 
@@ -31,6 +32,7 @@ class Query(
     PreferenceQuery,
     RoomQuery,
     UserQuery,
+    RecommendationsQuery,
 ): ...