Auto-join host into live session when going live from green room.

Green room poll was racing go-live and sending the host to the ended page; carry participant session into the new live session instead.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Services/Meet/SessionService.php

@@ -233,6 +233,68 @@ class SessionService
         $request->session()->put("meet.participant.{$session->uuid}", $participant->uuid);
     }
 
+    public function ensureJoinedParticipant(
+        Request $request,
+        Session $session,
+        ?User $user,
+        string $role,
+        ?string $displayName = null,
+        ?string $email = null,
+    ): Participant {
+        if ($user) {
+            $existing = $this->joinedParticipantForUser($session, $user);
+            if ($existing) {
+                $this->rememberParticipantSession($request, $existing, $session);
+
+                return $existing;
+            }
+        }
+
+        $participant = $this->joinParticipant($session, $user, $role, $displayName, $email);
+        $this->rememberParticipantSession($request, $participant, $session);
+
+        return $participant;
+    }
+
+    public function transitionGreenRoomParticipant(
+        Request $request,
+        Participant $greenParticipant,
+        Session $liveSession,
+    ): ?Participant {
+        $presenters = (array) $liveSession->presenter_refs;
+        $isPresenter = in_array($greenParticipant->role, ['host', 'co_host', 'panelist'], true)
+            || ($greenParticipant->user_ref && in_array($greenParticipant->user_ref, $presenters, true));
+
+        if (! $isPresenter) {
+            return null;
+        }
+
+        $user = $greenParticipant->user_ref
+            ? User::where('public_id', $greenParticipant->user_ref)->first()
+            : null;
+
+        $role = $greenParticipant->role;
+        if ($user && $user->ownerRef() === $liveSession->room->host_user_ref) {
+            $role = 'host';
+        } elseif (! in_array($role, ['host', 'co_host', 'panelist'], true)) {
+            $role = 'panelist';
+        }
+
+        $greenSession = $greenParticipant->session;
+        $participant = $this->ensureJoinedParticipant(
+            $request,
+            $liveSession,
+            $user,
+            $role,
+            $greenParticipant->display_name,
+            $greenParticipant->email,
+        );
+
+        $request->session()->forget("meet.participant.{$greenSession->uuid}");
+
+        return $participant;
+    }
+
     public function joinedParticipantForUser(Session $session, User $user): ?Participant
     {
         return $session->participants()

app/Services/Meet/TownHallService.php

@@ -66,6 +66,20 @@ class TownHallService
         return $liveSession;
     }
 
+    public function successorLiveSession(Session $greenRoomSession): ?Session
+    {
+        if ($greenRoomSession->session_mode !== 'green_room' || $greenRoomSession->isLive()) {
+            return null;
+        }
+
+        return $greenRoomSession->room->sessions()
+            ->where('status', 'live')
+            ->where('session_mode', 'live')
+            ->where('id', '!=', $greenRoomSession->id)
+            ->latest('started_at')
+            ->first();
+    }
+
     public function handoffCoHost(Session $session, Participant $from, string $toUserRef): Participant
     {
         abort_unless(in_array($from->role, ['host', 'co_host'], true), 403);