전체적인 리팩토링

features/settings/lib/kis-remember-storage.ts

@@ -0,0 +1,95 @@
+/**
+ * [파일 역할]
+ * KIS 설정 화면의 "기억하기" 항목(localStorage) 키와 읽기/쓰기 유틸을 관리합니다.
+ *
+ * [주요 책임]
+ * - 앱키/앱시크릿키/계좌번호의 기억하기 체크 상태 저장
+ * - 기억하기 값 저장/조회/삭제
+ * - 로그아웃/세션만료 시 일괄 정리할 키 목록 제공
+ */
+
+export type KisRememberField = "appKey" | "appSecret" | "accountNo";
+
+const KIS_REMEMBER_ENABLED_KEY_MAP = {
+  appKey: "autotrade-kis-remember-app-key-enabled",
+  appSecret: "autotrade-kis-remember-app-secret-enabled",
+  accountNo: "autotrade-kis-remember-account-no-enabled",
+} as const;
+
+const KIS_REMEMBER_VALUE_KEY_MAP = {
+  appKey: "autotrade-kis-remember-app-key",
+  appSecret: "autotrade-kis-remember-app-secret",
+  accountNo: "autotrade-kis-remember-account-no",
+} as const;
+
+export const KIS_REMEMBER_LOCAL_STORAGE_KEYS = [
+  ...Object.values(KIS_REMEMBER_ENABLED_KEY_MAP),
+  ...Object.values(KIS_REMEMBER_VALUE_KEY_MAP),
+] as const;
+
+function getBrowserLocalStorage() {
+  if (typeof window === "undefined") {
+    return null;
+  }
+
+  return window.localStorage;
+}
+
+function readLocalStorage(key: string) {
+  const storage = getBrowserLocalStorage();
+  if (!storage) {
+    return "";
+  }
+
+  return storage.getItem(key) ?? "";
+}
+
+function writeLocalStorage(key: string, value: string) {
+  const storage = getBrowserLocalStorage();
+  if (!storage) {
+    return;
+  }
+
+  storage.setItem(key, value);
+}
+
+function removeLocalStorage(key: string) {
+  const storage = getBrowserLocalStorage();
+  if (!storage) {
+    return;
+  }
+
+  storage.removeItem(key);
+}
+
+export function isKisRememberEnabled(field: KisRememberField) {
+  return readLocalStorage(KIS_REMEMBER_ENABLED_KEY_MAP[field]) === "1";
+}
+
+export function setKisRememberEnabled(field: KisRememberField, enabled: boolean) {
+  const enabledKey = KIS_REMEMBER_ENABLED_KEY_MAP[field];
+  if (enabled) {
+    writeLocalStorage(enabledKey, "1");
+    return;
+  }
+
+  removeLocalStorage(enabledKey);
+  removeLocalStorage(KIS_REMEMBER_VALUE_KEY_MAP[field]);
+}
+
+export function getRememberedKisValue(field: KisRememberField) {
+  return readLocalStorage(KIS_REMEMBER_VALUE_KEY_MAP[field]);
+}
+
+export function setRememberedKisValue(field: KisRememberField, value: string) {
+  const normalized = value.trim();
+  const valueKey = KIS_REMEMBER_VALUE_KEY_MAP[field];
+
+  if (!normalized) {
+    removeLocalStorage(valueKey);
+    return;
+  }
+
+  writeLocalStorage(valueKey, normalized);
+}
+