Refactored server/db.js and all routes to use asynchronous fs operations, refactored m3uParser and epgParser to use streaming (via readline and sax) to prevent errors with large files, updated server/routes/proxy.js to use native stream piping for images and video, reducing latency and memory overhead

server/routes/favorites.js

@@ -3,10 +3,10 @@ const router = express.Router();
 const { favorites } = require('../db');
 
 // Get all favorites
-router.get('/', (req, res) => {
+router.get('/', async (req, res) => {
     try {
         const { sourceId, itemType } = req.query;
-        const items = favorites.getAll(sourceId, itemType);
+        const items = await favorites.getAll(sourceId, itemType);
         res.json(items);
     } catch (err) {
         res.status(500).json({ error: err.message });
@@ -14,14 +14,14 @@ router.get('/', (req, res) => {
 });
 
 // Add favorite
-router.post('/', (req, res) => {
+router.post('/', async (req, res) => {
     try {
         const { sourceId, itemId, itemType = 'channel' } = req.body;
         if (!sourceId || !itemId) {
             return res.status(400).json({ error: 'Source ID and Item ID are required' });
         }
 
-        favorites.add(sourceId, itemId, itemType);
+        await favorites.add(sourceId, itemId, itemType);
         res.json({ success: true });
     } catch (err) {
         res.status(500).json({ error: err.message });
@@ -29,14 +29,14 @@ router.post('/', (req, res) => {
 });
 
 // Remove favorite
-router.delete('/', (req, res) => {
+router.delete('/', async (req, res) => {
     try {
         const { sourceId, itemId, itemType = 'channel' } = req.body;
         if (!sourceId || !itemId) {
             return res.status(400).json({ error: 'Source ID and Item ID are required' });
         }
 
-        favorites.remove(sourceId, itemId, itemType);
+        await favorites.remove(sourceId, itemId, itemType);
         res.json({ success: true });
     } catch (err) {
         res.status(500).json({ error: err.message });
@@ -44,14 +44,14 @@ router.delete('/', (req, res) => {
 });
 
 // Check if item is favorited
-router.get('/check', (req, res) => {
+router.get('/check', async (req, res) => {
     try {
         const { sourceId, itemId, itemType = 'channel' } = req.query;
         if (!sourceId || !itemId) {
             return res.status(400).json({ error: 'Source ID and Item ID are required' });
         }
 
-        const isFav = favorites.isFavorite(sourceId, itemId, itemType);
+        const isFav = await favorites.isFavorite(sourceId, itemId, itemType);
         res.json({ isFavorite: isFav });
     } catch (err) {
         res.status(500).json({ error: err.message });