사소한 리팩토링 3

src/lib/utils/gotoStateful.ts

@@ -0,0 +1,40 @@
+import { goto } from "$app/navigation";
+
+type Path = "/key/export";
+
+interface KeyExportState {
+  redirectPath: string;
+
+  encryptKeyBase64: string;
+  decryptKeyBase64: string;
+  signKeyBase64: string;
+  verifyKeyBase64: string;
+
+  masterKeyWrapped: string;
+  hmacSecretWrapped: string;
+}
+
+const useAutoNull = <T>(value: T | null) => {
+  return {
+    get: () => {
+      const result = value;
+      value = null;
+      return result;
+    },
+    set: (newValue: T) => {
+      value = newValue;
+    },
+  };
+};
+
+export const keyExportState = useAutoNull<KeyExportState>(null);
+
+export function gotoStateful(path: "/key/export", state: KeyExportState): Promise<void>;
+
+export function gotoStateful(path: Path, state: unknown) {
+  switch (path) {
+    case "/key/export":
+      keyExportState.set(state as KeyExportState);
+      return goto(path);
+  }
+}

src/lib/utils/index.ts

@@ -0,0 +1 @@
+export * from "./gotoStateful";