more refactoring by feature

src/features/local/modules/moduleFileStorageService.ts

@@ -0,0 +1,27 @@
+import { promises as fs } from "fs";
+import { lectureFolderName } from "../../../services/fileStorage/utils/lectureUtils";
+import { getCoursePathByName } from "../../../services/fileStorage/globalSettingsFileStorageService";
+
+export const moduleFileStorageService = {
+  async getModuleNames(courseName: string) {
+    const courseDirectory = await getCoursePathByName(courseName);
+    const moduleDirectories = await fs.readdir(courseDirectory, {
+      withFileTypes: true,
+    });
+
+    const modulePromises = moduleDirectories
+      .filter((dirent) => dirent.isDirectory())
+      .map((dirent) => dirent.name);
+
+    const modules = await Promise.all(modulePromises);
+    const modulesWithoutLectures = modules.filter(
+      (m) => m !== lectureFolderName
+    );
+    return modulesWithoutLectures.sort((a, b) => a.localeCompare(b));
+  },
+  async createModule(courseName: string, moduleName: string) {
+    const courseDirectory = await getCoursePathByName(courseName);
+
+    await fs.mkdir(courseDirectory + "/" + moduleName, { recursive: true });
+  },
+};