Changeset 0.28.3 (#187)

server/handlers/workflow_assignments.go

@@ -130,26 +130,43 @@ func (h *WorkflowAssignmentHandler) Claim(c *gin.Context) {
 		return
 	}
 
-	// Emit workflow.claimed WS event
-	if h.hub != nil {
+	// Look up channel for this assignment (needed for WS delivery + notification)
+	var channelID string
+	_ = database.DB.QueryRowContext(c.Request.Context(),
+		database.Q(`SELECT channel_id FROM workflow_assignments WHERE id = $1`),
+		assignmentID).Scan(&channelID)
+
+	// Emit workflow.claimed WS event to all user participants in the channel.
+	// Uses SendToUser (not room-scoped Bus.Publish) because room subscriptions
+	// are not yet wired on the client side. See websocket.md § Room Model.
+	if h.hub != nil && channelID != "" {
 		payload, _ := json.Marshal(map[string]any{
 			"assignment_id": assignmentID,
 			"claimed_by":    userID,
+			"channel_id":    channelID,
 		})
-		h.hub.GetBus().Publish(events.Event{
+		evt := events.Event{
 			Label:   "workflow.claimed",
-			Room:    assignmentID,
 			Payload: payload,
 			Ts:      now.UnixMilli(),
-		})
+		}
+		rows, err := database.DB.QueryContext(c.Request.Context(), database.Q(`
+			SELECT participant_id FROM channel_participants
+			WHERE channel_id = $1 AND participant_type = 'user'
+		`), channelID)
+		if err == nil {
+			defer rows.Close()
+			for rows.Next() {
+				var uid string
+				if rows.Scan(&uid) == nil {
+					h.hub.SendToUser(uid, evt)
+				}
+			}
+		}
 	}
 
 	// Persist notification for bell/inbox (v0.28.2)
-	if svc := notifications.Default(); svc != nil {
-		var channelID string
-		_ = database.DB.QueryRowContext(c.Request.Context(),
-			database.Q(`SELECT channel_id FROM workflow_assignments WHERE id = $1`),
-			assignmentID).Scan(&channelID)
+	if svc := notifications.Default(); svc != nil && channelID != "" {
 		notifications.NotifyWorkflowClaimed(svc, userID, assignmentID, channelID)
 	}