refactor: clean up comments and unused code in various files

ServerFiles/server.js

@@ -14,17 +14,12 @@ const execFileAsync = util.promisify(execFile);
 
 const SSH_OPTIONS = ['-o', 'StrictHostKeyChecking=no', '-o', 'UserKnownHostsFile=/dev/null'];
 
-// Read the default NAS photo directory from the config file
 const NAS_CONFIG_PATH = path.join(__dirname, 'nas_config.txt');
 let DEFAULT_PHOTO_DIR = '/home/user/photos';
 try {
   const raw = fs.readFileSync(NAS_CONFIG_PATH, 'utf8').trim();
   if (raw) DEFAULT_PHOTO_DIR = raw.split('\n')[0].trim();
-} catch (_) {
-  // Config file missing — keep the hard-coded default
-}
-
-// SSH/SFTP shell helpers
+} catch (_) {}
 
 function runCommand(cmd, args, options = {}) {
   return execFileAsync(cmd, args, {
@@ -66,8 +61,6 @@ async function runSftpBatch(conn, batchCommands) {
   }
 }
 
-// Express setup
-
 const app = express();
 app.use(express.json());
 app.use(express.urlencoded({ extended: true }));
@@ -82,8 +75,6 @@ app.use((req, res, next) => {
   next();
 });
 
-// JWT verification middleware
-
 function verifyToken(req, res, next) {
   const authHeader = req.headers.authorization;
   const token = authHeader?.split(' ')[1];
@@ -100,10 +91,6 @@ function verifyToken(req, res, next) {
   }
 }
 
-// ─── REST Endpoints ──────────────────────────────────────────────
-
-// Health check
-
 app.get('/api/health', (req, res) => {
   res.json({
     status: 'ok',
@@ -113,14 +100,10 @@ app.get('/api/health', (req, res) => {
   });
 });
 
-// Return the current NAS photo directory read from nas_config.txt
-
 app.get('/api/config/photo-dir', (req, res) => {
   res.json({ photoDir: DEFAULT_PHOTO_DIR });
 });
 
-// Establish an SFTP connection (stores credentials, returns a JWT)
-
 app.post('/api/sftp/connect', (req, res) => {
   const { host, port = 22, username, password } = req.body;
   if (!host || !username || !password) {
@@ -141,8 +124,6 @@ app.post('/api/sftp/connect', (req, res) => {
   });
 });
 
-// List directory contents
-
 app.post('/api/sftp/list', verifyToken, async (req, res) => {
   const { path: dirPath = DEFAULT_PHOTO_DIR } = req.body;
   const conn = req.connection;
@@ -170,8 +151,6 @@ app.post('/api/sftp/list', verifyToken, async (req, res) => {
   }
 });
 
-// Download a file from the NAS
-
 app.get('/api/sftp/download', verifyToken, async (req, res) => {
   const { path: filePath } = req.query;
   if (!filePath) return res.status(400).json({ error: 'Missing path parameter' });
@@ -183,7 +162,7 @@ app.get('/api/sftp/download', verifyToken, async (req, res) => {
   try {
     await runCommand('scp', buildScpArgs(conn, `${conn.username}@${conn.host}:${filePath}`, tempFilePath));
     res.download(tempFilePath, filename, () => {
-      try { fs.unlinkSync(tempFilePath); } catch (_) { /* already cleaned */ }
+      try { fs.unlinkSync(tempFilePath); } catch (_) {}
     });
   } catch (err) {
     console.error('Download error:', err.message);
@@ -191,8 +170,6 @@ app.get('/api/sftp/download', verifyToken, async (req, res) => {
   }
 });
 
-// Upload a file to the NAS
-
 app.post('/api/sftp/upload', verifyToken, async (req, res) => {
   const { remotePath } = req.body;
   if (!remotePath || !req.files?.file) {
@@ -218,8 +195,6 @@ app.post('/api/sftp/upload', verifyToken, async (req, res) => {
   }
 });
 
-// Create a directory on the NAS
-
 app.post('/api/sftp/mkdir', verifyToken, async (req, res) => {
   const { path: dirPath } = req.body;
   if (!dirPath) return res.status(400).json({ error: 'Missing path parameter' });
@@ -234,8 +209,6 @@ app.post('/api/sftp/mkdir', verifyToken, async (req, res) => {
   }
 });
 
-// Delete a file on the NAS
-
 app.post('/api/sftp/delete', verifyToken, async (req, res) => {
   const { path: filePath } = req.body;
   if (!filePath) return res.status(400).json({ error: 'Missing path parameter' });
@@ -250,18 +223,12 @@ app.post('/api/sftp/delete', verifyToken, async (req, res) => {
   }
 });
 
-// Disconnect from the NAS
-
 app.post('/api/sftp/disconnect', verifyToken, (req, res) => {
   connections.delete(req.connectionId);
   console.log(`Disconnected: ${req.connectionId}`);
   res.json({ success: true, message: 'Disconnected from SFTP server' });
 });
 
-// ─── Google Photos → NAS Proxy Endpoints ─────────────────────────
-
-// Fetch media items from Google Photos on behalf of the mobile client
-
 app.post('/api/google-photos/fetch', verifyToken, async (req, res) => {
   const { googleAccessToken, pageSize = 50, pageToken } = req.body;
   if (!googleAccessToken) {
@@ -302,8 +269,6 @@ app.post('/api/google-photos/fetch', verifyToken, async (req, res) => {
   }
 });
 
-// Download a Google Photos item and save it directly to the NAS
-
 app.post('/api/google-photos/download-to-nas', verifyToken, async (req, res) => {
   const { googleAccessToken, baseUrl, filename, remotePath } = req.body;
   const conn = req.connection;
@@ -337,14 +302,10 @@ app.post('/api/google-photos/download-to-nas', verifyToken, async (req, res) =>
   }
 });
 
-// Sync status (placeholder for future batch sync)
-
 app.post('/api/google-photos/sync-status', verifyToken, (req, res) => {
   res.json({ success: true, status: 'idle', message: 'No active sync in progress', lastSync: null });
 });
 
-// ─── Lifecycle ───────────────────────────────────────────────────
-
 process.on('SIGINT', () => {
   console.log('\nShutting down...');
   connections.forEach((_, id) => connections.delete(id));