local file saving/reading

out/main/index.js

@@ -1,7 +1,77 @@
 "use strict";
-const electron = require("electron");
-const path = require("path");
 const utils = require("@electron-toolkit/utils");
+const electron = require("electron");
+const fs = require("fs");
+const path = require("path");
+const BASE_DIR = path.join(electron.app.getPath("userData"), "notes-storage");
+const ensureBaseDir = () => {
+  if (!fs.existsSync(BASE_DIR)) {
+    fs.mkdirSync(BASE_DIR, { recursive: true });
+  }
+};
+const sanitizeRelativePath = (relativePath) => {
+  const resolved = path.join(BASE_DIR, relativePath);
+  if (!resolved.startsWith(BASE_DIR)) {
+    throw new Error("Invalid path");
+  }
+  return resolved;
+};
+const readAllNotesRecursive = (dir = BASE_DIR, base = BASE_DIR) => {
+  const entries = fs.readdirSync(dir, { withFileTypes: true });
+  let results = [];
+  for (const entry of entries) {
+    const fullPath = path.join(dir, entry.name);
+    if (entry.isDirectory()) {
+      results = results.concat(readAllNotesRecursive(fullPath, base));
+    }
+    if (entry.isFile() && entry.name.endsWith(".md")) {
+      const content = fs.readFileSync(fullPath, "utf-8");
+      results.push({
+        name: entry.name,
+        path: path.relative(base, fullPath),
+        content
+      });
+    }
+  }
+  return results;
+};
+const createNote = (relativePath, content = "") => {
+  const fullPath = sanitizeRelativePath(relativePath);
+  fs.mkdirSync(path.dirname(fullPath), { recursive: true });
+  fs.writeFileSync(fullPath, content, "utf-8");
+  return true;
+};
+const createDirectory = (relativePath) => {
+  const fullPath = sanitizeRelativePath(relativePath);
+  fs.mkdirSync(fullPath, { recursive: true });
+  return true;
+};
+const readNote = (relativePath) => {
+  const fullPath = sanitizeRelativePath(relativePath);
+  if (!fs.existsSync(fullPath)) {
+    createNote(relativePath);
+  }
+  return fs.readFileSync(fullPath, "utf-8");
+};
+const updateNote = (relativePath, content) => {
+  const fullPath = sanitizeRelativePath(relativePath);
+  if (!fs.existsSync(fullPath)) {
+    throw new Error("Note does not exist");
+  }
+  fs.writeFileSync(fullPath, content, "utf-8");
+  return true;
+};
+const notes = {
+  ensureBaseDir,
+  sanitizeRelativePath,
+  readAllNotesRecursive,
+  createNote,
+  createDirectory,
+  readNote,
+  updateNote
+};
+const preloadPath = path.join(__dirname, "../preload/index.js");
+const rendererPath = path.join(__dirname, "../renderer/index.html");
 function createWindow() {
   const mainWindow2 = new electron.BrowserWindow({
     width: 354,
@@ -9,7 +79,7 @@ function createWindow() {
     show: false,
     autoHideMenuBar: true,
     webPreferences: {
-      preload: path.join(__dirname, "../preload/index.js"),
+      preload: preloadPath,
       sandbox: false
     }
   });
@@ -23,7 +93,7 @@ function createWindow() {
   if (utils.is.dev && process.env["ELECTRON_RENDERER_URL"]) {
     mainWindow2.loadURL(process.env["ELECTRON_RENDERER_URL"]);
   } else {
-    mainWindow2.loadFile(path.join(__dirname, "../renderer/index.html"));
+    mainWindow2.loadFile(rendererPath);
   }
 }
 function createNoteWindow(noteId) {
@@ -32,7 +102,7 @@ function createNoteWindow(noteId) {
     height: 549,
     autoHideMenuBar: true,
     webPreferences: {
-      preload: path.join(__dirname, "preload.js"),
+      preload: preloadPath,
       contextIsolation: true,
       nodeIntegration: false
     }
@@ -42,7 +112,7 @@ function createNoteWindow(noteId) {
       `${process.env["ELECTRON_RENDERER_URL"]}/note/${noteId}`
     );
   } else {
-    mainWindow.loadFile(path.join(__dirname, "../renderer/index.html"), {
+    mainWindow.loadFile(rendererPath, {
       path: `/notes/${noteId}`
     });
   }
@@ -52,14 +122,29 @@ electron.app.whenReady().then(() => {
   electron.app.on("browser-window-created", (_, window) => {
     utils.optimizer.watchWindowShortcuts(window);
   });
-  console.log(electron.app.getPath("userData"));
   createWindow();
+  notes.ensureBaseDir();
   electron.app.on("activate", function() {
     if (electron.BrowserWindow.getAllWindows().length === 0) createWindow();
   });
   electron.ipcMain.on("open-note-window", (_, noteId) => {
     createNoteWindow(noteId);
   });
+  electron.ipcMain.handle("notes:list", () => {
+    return notes.readAllNotesRecursive();
+  });
+  electron.ipcMain.handle("notes:create", (_, { path: path2, content }) => {
+    return notes.createNote(path2, content);
+  });
+  electron.ipcMain.handle("notes:createDir", (_, path2) => {
+    return notes.createDirectory(path2);
+  });
+  electron.ipcMain.handle("notes:read", (_, path2) => {
+    return notes.readNote(path2);
+  });
+  electron.ipcMain.handle("notes:update", (_, { path: path2, content }) => {
+    return notes.updateNote(path2, content);
+  });
 });
 electron.app.on("window-all-closed", () => {
   if (process.platform !== "darwin") {