refactor(chat): centralize agent session URLs

src/components/chat/hooks/useAgentChatSession.ts

@@ -3,14 +3,50 @@
 import { useCallback, useEffect, useRef, useState } from "react";
 import { useSession } from "next-auth/react";
 
-import { abortAgentChat, forkAgentChat, rejectAgentQuestion, replyAgentCredentialRefresh, replyAgentPermission, replyAgentQuestion, resumeAgentChatStream, streamAgentChat } from "@/lib/chatStream";
+import {
+  abortAgentChat,
+  forkAgentChat,
+  rejectAgentQuestion,
+  replyAgentCredentialRefresh,
+  replyAgentPermission,
+  replyAgentQuestion,
+  resumeAgentChatStream,
+  streamAgentChat,
+} from "@/lib/chatStream";
 import type { PermissionReply, StreamEvent } from "@/lib/chatStream";
 import { useAuthStore } from "@/store/authStore";
-import type { AgentArtifact, ChatSessionSummary, Message } from "../GlobalChatbox.types";
+import type {
+  AgentArtifact,
+  ChatSessionSummary,
+  Message,
+} from "../GlobalChatbox.types";
 import { cloneMessages } from "../globalChatboxUtils";
-import { createEmptyChatState, deleteChatSession, listChatSessions, loadChatSessionById, updateChatSessionTitle } from "../chatStorage";
-import { applyQuestionResponse, cancelRunningTodos, completeRunningProgress, createAssistantMessage, createTodoUpdateFromEvent, createUserMessage, dedupeQuestionsAcrossMessages, finalizeAssistantMessageAfterAbort, normalizeSessionTodos, toPermissionStatus, upsertPermission, upsertProgress, upsertQuestionAcrossMessages } from "./agentChatSessionState";
-import type { PromptRunOptions, UseAgentChatSessionOptions } from "./useAgentChatSession.types";
+import {
+  createEmptyChatState,
+  deleteChatSession,
+  listChatSessions,
+  loadChatSessionById,
+  updateChatSessionTitle,
+} from "../chatStorage";
+import {
+  applyQuestionResponse,
+  cancelRunningTodos,
+  completeRunningProgress,
+  createAssistantMessage,
+  createTodoUpdateFromEvent,
+  createUserMessage,
+  dedupeQuestionsAcrossMessages,
+  finalizeAssistantMessageAfterAbort,
+  normalizeSessionTodos,
+  toPermissionStatus,
+  upsertPermission,
+  upsertProgress,
+  upsertQuestionAcrossMessages,
+} from "./agentChatSessionState";
+import type {
+  PromptRunOptions,
+  UseAgentChatSessionOptions,
+} from "./useAgentChatSession.types";
 
 const TOKEN_PLAYBACK_INTERVAL_MS = 16;
 const TOKEN_PLAYBACK_BASE_CHARS = 28;

src/lib/chatStream.ts

@@ -1,6 +1,11 @@
 import { apiFetch } from "@/lib/apiFetch";
 import { config } from "@config/config";
 
+const AGENT_SESSIONS_URL = `${config.AGENT_URL}/api/v1/agent/sessions`;
+
+const getAgentSessionUrl = (sessionId: string, suffix = "") =>
+  `${AGENT_SESSIONS_URL}/${encodeURIComponent(sessionId)}${suffix}`;
+
 export type AgentModel = string;
 
 export type PermissionReply = "once" | "always" | "reject";
@@ -509,7 +514,7 @@ const readStreamEvents = async (
 const ensureAgentSession = async (sessionId?: string) => {
   if (sessionId) return sessionId;
 
-  const response = await apiFetch(`${config.AGENT_URL}/api/v1/agent/sessions`, {
+  const response = await apiFetch(AGENT_SESSIONS_URL, {
     method: "POST",
     headers: {
       "Content-Type": "application/json",
@@ -519,7 +524,10 @@ const ensureAgentSession = async (sessionId?: string) => {
     skipAuthRedirect: true,
   });
   if (!response.ok) {
-    throw new Error((await response.text()) || `session creation failed: ${response.status}`);
+    throw new Error(
+      (await response.text()) ||
+        `session creation failed: ${response.status}`,
+    );
   }
   const payload = (await response.json()) as { session_id?: string };
   if (!payload.session_id) {
@@ -540,7 +548,7 @@ export const streamAgentChat = async ({
   try {
     const effectiveSessionId = await ensureAgentSession(sessionId);
     response = await apiFetch(
-      `${config.AGENT_URL}/api/v1/agent/sessions/${encodeURIComponent(effectiveSessionId)}/runs`,
+      getAgentSessionUrl(effectiveSessionId, "/runs"),
       {
         method: "POST",
         signal,
@@ -597,7 +605,7 @@ export const resumeAgentChatStream = async ({
   let response: Response;
   try {
     response = await apiFetch(
-      `${config.AGENT_URL}/api/v1/agent/sessions/${encodeURIComponent(sessionId)}/runs/current/events`,
+      getAgentSessionUrl(sessionId, "/runs/current/events"),
       {
         method: "GET",
         signal,
@@ -638,11 +646,14 @@ export const abortAgentChat = async (sessionId?: string) => {
     return;
   }
 
-  const response = await apiFetch(`${config.AGENT_URL}/api/v1/agent/sessions/${encodeURIComponent(sessionId)}/runs/current`, {
+  const response = await apiFetch(
+    getAgentSessionUrl(sessionId, "/runs/current"),
+    {
       method: "DELETE",
       projectHeaderMode: "include",
       skipAuthRedirect: true,
-  });
+    },
+  );
 
   if (!response.ok) {
     const detail = await response.text();
@@ -656,7 +667,7 @@ export const replyAgentPermission = async (
   reply: PermissionReply,
 ) => {
   const response = await apiFetch(
-    `${config.AGENT_URL}/api/v1/agent/sessions/${encodeURIComponent(sessionId)}/permission-responses`,
+    getAgentSessionUrl(sessionId, "/permission-responses"),
     {
       method: "POST",
       headers: {
@@ -682,7 +693,7 @@ export const replyAgentCredentialRefresh = async (
   requestId: string,
 ) => {
   const response = await apiFetch(
-    `${config.AGENT_URL}/api/v1/agent/sessions/${encodeURIComponent(sessionId)}/credential-refreshes`,
+    getAgentSessionUrl(sessionId, "/credential-refreshes"),
     {
       method: "POST",
       headers: { "Content-Type": "application/json" },
@@ -693,7 +704,9 @@ export const replyAgentCredentialRefresh = async (
   );
   if (!response.ok) {
     const detail = await response.text();
-    throw new Error(detail || `credential refresh reply failed: ${response.status}`);
+    throw new Error(
+      detail || `credential refresh reply failed: ${response.status}`,
+    );
   }
 };
 
@@ -703,7 +716,7 @@ export const replyAgentQuestion = async (
   answers: string[][],
 ) => {
   const response = await apiFetch(
-    `${config.AGENT_URL}/api/v1/agent/sessions/${encodeURIComponent(sessionId)}/question-responses`,
+    getAgentSessionUrl(sessionId, "/question-responses"),
     {
       method: "POST",
       headers: {
@@ -730,7 +743,7 @@ export const rejectAgentQuestion = async (
   requestId: string,
 ) => {
   const response = await apiFetch(
-    `${config.AGENT_URL}/api/v1/agent/sessions/${encodeURIComponent(sessionId)}/question-responses`,
+    getAgentSessionUrl(sessionId, "/question-responses"),
     {
       method: "POST",
       headers: {
@@ -751,8 +764,13 @@ export const rejectAgentQuestion = async (
   }
 };
 
-export const forkAgentChat = async (sessionId: string | undefined, keepMessageCount: number) => {
-  const response = await apiFetch(`${config.AGENT_URL}/api/v1/agent/sessions/${encodeURIComponent(sessionId ?? "")}/forks`, {
+export const forkAgentChat = async (
+  sessionId: string | undefined,
+  keepMessageCount: number,
+) => {
+  const response = await apiFetch(
+    getAgentSessionUrl(sessionId ?? "", "/forks"),
+    {
       method: "POST",
       headers: {
         "Content-Type": "application/json",
@@ -762,7 +780,8 @@ export const forkAgentChat = async (sessionId: string | undefined, keepMessageCo
       }),
       projectHeaderMode: "include",
       skipAuthRedirect: true,
-  });
+    },
+  );
 
   if (!response.ok) {
     const detail = await response.text();