bud panels duplicate-add guard: server-side already_present flag + client-side error Brief w. FYI flash highlight on the existing entry — for each of the three #id_bud_btn panels (My Buds / post-share / gatekeeper-invite), the JSON response from add_bud / share_post / invite_gamer now carries {already_present, recipient_display, recipient_user_id}; bud-btn.js branches on already_present → calls new Brief.showDuplicateBanner({display_name, target_selector}) instead of the normal onSuccess append; banner title reads @<username> is already present, NVM dismisses, FYI dismisses AND eases in the .bud-duplicate-flash class (color: var(--terUser); text-shadow: 0 0 .5em var(--ninUser); transition: 600ms) onto the existing element (.bud-entry .bud-name / .post-recipient[data-user-id=…] / .gate-slot.filled[data-user-id=…]); gatekeeper "already present" = recipient is either GateSlot.FILLED + gamer OR has TableSeat OR has a pending RoomInvite (highlight target only set when seated — pending invites have no visible slot); .post-recipient chips + .gate-slot.filled cells gain data-user-id so the FYI selector can find them; my_buds.html now loads note.js via the {% block scripts %} pattern (Brief module is required by the duplicate banner path); bonus: latent test_jasmine.py bug fixed — "0 failures" in result.text matched "10 failures" / "20 failures" / etc, silently passing up to 99 failed specs; replaced w. re.search(r"(?<!\d)0 failures\b", …) (caught my new red specs, would've caught any prior Jasmine regression); 18 new ITs + 10 new Jasmine specs + 3 new FTs (one per panel) — TDD

Code architected by Disco DeDisco <discodedisco@outlook.com>
Git commit message Co-Authored-By:
Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/apps/epic/views.py

@@ -699,36 +699,62 @@ def invite_gamer(request, room_id):
     # username-typed invite doesn't store the raw username as if it were
     # an email); falls back to the raw input for unregistered addresses.
     invitee_email = candidate.email if candidate else raw
-    RoomInvite.objects.get_or_create(
-        room=room,
-        inviter=request.user,
-        invitee_email=invitee_email,
-        defaults={"status": RoomInvite.PENDING},
-    )
 
-    # Buds graph: symmetric auto-add on registered recipients (mirrors
-    # share_post). Idempotent on M2M; no-op on unregistered recipients.
-    if candidate is not None:
-        request.user.buds.add(candidate)
-        candidate.buds.add(request.user)
-
-    # Brief: confirmation banner for the inviter. Brief.post stays null;
-    # banner FYI navigates to the room's gatekeeper page via Brief.room.
-    brief = Brief.objects.create(
-        owner=request.user,
-        post=None,
-        room=room,
-        kind=Brief.KIND_GAME_INVITE,
-        title="Invite sent",
+    # Duplicate-invite guard: "already present" = recipient is either
+    # already seated in the room OR has a (pending/accepted) RoomInvite.
+    # During gatekeeper phase the visible `.gate-slot.filled` cells are
+    # GateSlot-driven (TableSeats spin up later at SIG SELECT), so check
+    # both — GateSlot.FILLED catches the in-phase case, TableSeat catches
+    # the post-phase case. Seated recipients carry recipient_user_id so
+    # the client can find the .gate-slot.filled[data-user-id="X"]
+    # highlight target; pending invitees have no visible slot, so
+    # recipient_user_id stays null.
+    already_seated = candidate is not None and (
+        GateSlot.objects.filter(
+            room=room, gamer=candidate, status=GateSlot.FILLED,
+        ).exists()
+        or TableSeat.objects.filter(room=room, gamer=candidate).exists()
     )
+    already_invited = RoomInvite.objects.filter(
+        room=room, invitee_email=invitee_email,
+    ).exists()
+    already_present = already_seated or already_invited
+
+    brief = None
+    if not already_present:
+        RoomInvite.objects.create(
+            room=room,
+            inviter=request.user,
+            invitee_email=invitee_email,
+            status=RoomInvite.PENDING,
+        )
+        # Buds graph: symmetric auto-add on registered recipients (mirrors
+        # share_post). Idempotent on M2M; no-op on unregistered recipients.
+        if candidate is not None:
+            request.user.buds.add(candidate)
+            candidate.buds.add(request.user)
+        # Brief: confirmation banner for the inviter. Brief.post stays
+        # null; banner FYI navigates to the room's gatekeeper page via
+        # Brief.room.
+        brief = Brief.objects.create(
+            owner=request.user,
+            post=None,
+            room=room,
+            kind=Brief.KIND_GAME_INVITE,
+            title="Invite sent",
+        )
+
+    recipient_user_id = str(candidate.id) if already_seated else None
 
     if is_ajax:
         recipient_display = None
         if candidate is not None:
             recipient_display = candidate.username or candidate.email
         return JsonResponse({
-            "brief":             brief.to_banner_dict(),
+            "brief":             brief.to_banner_dict() if brief is not None else None,
             "recipient_display": recipient_display,
+            "recipient_user_id": recipient_user_id,
+            "already_present":   already_present,
         })
 
     return redirect("epic:gatekeeper", room_id=room_id)