[Init] Initial commit - NetMesh terminal manager

application/state/ymodemFileMemory.ts

@@ -0,0 +1,38 @@
+import { STORAGE_KEY_TERMINAL_YMODEM_SEND_DIR } from "../../infrastructure/config/storageKeys";
+import { localStorageAdapter } from "../../infrastructure/persistence/localStorageAdapter";
+
+type YmodemFileMemoryStore = {
+  readString: (key: string) => string | null;
+  writeString: (key: string, value: string) => boolean;
+};
+
+const getParentDirectory = (filePath: string): string | null => {
+  const lastForwardSlash = filePath.lastIndexOf("/");
+  const isWindowsPath = /^[A-Za-z]:[\\/]/.test(filePath) || filePath.startsWith("\\\\");
+  const lastSeparator = isWindowsPath
+    ? Math.max(lastForwardSlash, filePath.lastIndexOf("\\"))
+    : lastForwardSlash;
+
+  if (lastSeparator < 0) return null;
+  if (lastSeparator === 0) return filePath.slice(0, 1);
+  if (lastSeparator === 2 && filePath[1] === ":") return filePath.slice(0, 3);
+
+  return filePath.slice(0, lastSeparator);
+};
+
+export const getRememberedYmodemSendDefaultPath = (
+  store: YmodemFileMemoryStore = localStorageAdapter,
+): string | undefined => {
+  const rememberedPath = store.readString(STORAGE_KEY_TERMINAL_YMODEM_SEND_DIR);
+  if (!rememberedPath || rememberedPath.trim() === "") return undefined;
+  return rememberedPath;
+};
+
+export const rememberYmodemSendFilePath = (
+  filePath: string,
+  store: YmodemFileMemoryStore = localStorageAdapter,
+): boolean => {
+  const directory = getParentDirectory(filePath);
+  if (!directory) return false;
+  return store.writeString(STORAGE_KEY_TERMINAL_YMODEM_SEND_DIR, directory);
+};