From 9bb263c985e335b6b0348709db0ca48482a679e9 Mon Sep 17 00:00:00 2001
From: Vincent Koc <vincentkoc@ieee.org>
Date: Thu, 18 Jun 2026 10:46:59 +0800
Subject: [PATCH] refactor(channels): remove unused route helpers

---
 src/channels/route-projection.ts | 31 -------------------------------
 1 file changed, 31 deletions(-)

diff --git a/src/channels/route-projection.ts b/src/channels/route-projection.ts
index 3871580ca062..67de6cd15251 100644
--- a/src/channels/route-projection.ts
+++ b/src/channels/route-projection.ts
@@ -81,16 +81,6 @@ export type RoutableChannelRouteRef = ChannelRouteRef & {
   };
 };
 
-/** Session fields that can carry or reconstruct a channel route. */
-export type SessionRouteDeliveryFields = {
-  route?: ChannelRouteRef;
-  deliveryContext?: DeliveryContext;
-  lastChannel?: string;
-  lastTo?: string;
-  lastAccountId?: string;
-  lastThreadId?: string | number;
-};
-
 /** Normalizes a route and rejects routes that cannot address a channel target. */
 export function normalizeRoutableChannelRoute(
   route?: ChannelRouteRef | null,
@@ -132,13 +122,6 @@ export function routeFromSessionEntry(entry?: SessionEntry | null): ChannelRoute
   );
 }
 
-/** Builds session persistence fields from a channel route. */
-export function sessionDeliveryFieldsFromRoute(
-  route?: ChannelRouteRef,
-): SessionRouteDeliveryFields {
-  return normalizeSessionDeliveryFields({ route });
-}
-
 /** Converts a persisted conversation reference into a channel route. */
 export function routeFromConversationRef(
   conversation?: ConversationRef | null,
@@ -160,13 +143,6 @@ export function routeFromConversationRef(
   });
 }
 
-/** Converts a conversation reference into a routable channel route. */
-export function routableRouteFromConversationRef(
-  conversation?: ConversationRef | null,
-): RoutableChannelRouteRef | undefined {
-  return normalizeRoutableChannelRoute(routeFromConversationRef(conversation));
-}
-
 /** Extracts a channel route from a session binding record. */
 export function routeFromBindingRecord(
   binding?: SessionBindingRecord | null,
@@ -174,13 +150,6 @@ export function routeFromBindingRecord(
   return routeFromConversationRef(binding?.conversation);
 }
 
-/** Extracts a routable channel route from a session binding record. */
-export function routableRouteFromBindingRecord(
-  binding?: SessionBindingRecord | null,
-): RoutableChannelRouteRef | undefined {
-  return normalizeRoutableChannelRoute(routeFromBindingRecord(binding));
-}
-
 /** Projects route fields used by older session and delivery callers. */
 export function routeToDeliveryFields(route?: ChannelRouteRef): {
   deliveryContext?: DeliveryContext;