diff --git a/server.js b/server.js
index 5adde52..d055bad 100644
--- a/server.js
+++ b/server.js
@@ -5,84 +5,92 @@ const fs = require('fs');
 
 const app = express();
 
+// configure storage for uploaded files
 const storage = multer.diskStorage({
-	        destination: (req, file, cb) => {
-			                    cb(null, 'uploads/');
-			                },
-	        filename: (req, file, cb) => {
-			                    const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9);
-			                    cb(null, uniqueSuffix + '-' + file.originalname);
-			                }
+    destination: (req, file, cb) => {
+        cb(null, 'uploads/');
+    },
+    filename: (req, file, cb) => {
+        const uniqueSuffix = Date.now() + '-' + Math.round(Math.random() * 1E9);
+        cb(null, uniqueSuffix + '-' + file.originalname);
+    }
 });
 
 const upload = multer({ storage: storage });
 
+// serve static files
 app.use(express.static(__dirname));
 
+// upload files
 app.post('/upload', upload.array('files'), (req, res) => {
-	        if (!req.files || req.files.length === 0) {
-			            return res.status(400).send('No files were uploaded.');
-			        }
-	        res.send(`Successfully uploaded ${req.files.length} file(s)!`);
+    if (!req.files || req.files.length === 0) {
+        return res.status(400).send('No files were uploaded.');
+    }
+    res.send(`Successfully uploaded ${req.files.length} file(s)!`);
 });
 
+// get list of uploaded files
 app.get('/files', (req, res) => {
-	        const directoryPath = path.join(__dirname, 'uploads');
-	        fs.readdir(directoryPath, (err, files) => {
-			                    if (err) {
-						                                    return res.status(500).send('Unable to scan directory: ' + err);
-						                                }
-			                    const fileListPromises = files.map(file => {
-						                                    return new Promise((resolve) => {
-											                                                const filePath = path.join(directoryPath, file);
-											                                                fs.stat(filePath, (err, stats) => {
-																		                                                            if (err) {
-																										                                                                            return resolve(null);
-																										                                                                        }
-																		                                                            resolve({
-																										                                                                            name: file,
-																										                                                                            path: `/uploads/${file}`,
-																										                                                                            size: stats.size,
-																										                                                                            date: stats.mtime
-																										                                                                        });
-																		                                                        });
-											                                                });
-						                                });
+    const directoryPath = path.join(__dirname, 'uploads');
+    fs.readdir(directoryPath, (err, files) => {
+        if (err) {
+            return res.status(500).send('Unable to scan directory: ' + err);
+        }
+        const fileListPromises = files.map(file => {
+            return new Promise((resolve) => {
+                const filePath = path.join(directoryPath, file);
+                fs.stat(filePath, (err, stats) => {
+                    if (err) {
+                        return resolve(null);
+                    }
+                    resolve({
+                        name: file,
+                        path: `/uploads/${file}`,
+                        size: stats.size,
+                        date: stats.mtime
+                    });
+                });
+            });
+        });
 
-			                    Promise.all(fileListPromises).then(fileList => {
-						                                    res.json(fileList.filter(file => file !== null));
-						                                });
-			                });
+        Promise.all(fileListPromises).then(fileList => {
+            res.json(fileList.filter(file => file !== null));
+        });
+    });
 });
 
+// serve a specific file
 app.get('/uploads/:filename', (req, res) => {
-	        const filePath = path.join(__dirname, 'uploads', req.params.filename);
-	        res.sendFile(filePath, err => {
-			                    if (err) {
-						                                    res.status(404).send('File not found');
-						                                }
-			                });
+    const filePath = path.join(__dirname, 'uploads', req.params.filename);
+    res.sendFile(filePath, err => {
+        if (err) {
+            res.status(404).send('File not found');
+        }
+    });
 });
 
+// download a specific file
 app.get('/download/:filename', (req, res) => {
-	        const filePath = path.join(__dirname, 'uploads', req.params.filename);
-	        res.download(filePath, err => {
-			                    if (err) {
-						                                    res.status(404).send('File not found');
-						                                }
-			                });
+    const filePath = path.join(__dirname, 'uploads', req.params.filename);
+    res.download(filePath, err => {
+        if (err) {
+            res.status(404).send('File not found');
+        }
+    });
 });
 
+// delete a specific file
 app.delete('/delete/:filename', (req, res) => {
-	        const filePath = path.join(__dirname, 'uploads', req.params.filename);
-	        fs.unlink(filePath, err => {
-			                    if (err) {
-						                                    return res.status(404).send('File not found');
-						                                }
-			                    res.send('File deleted successfully');
-			                });
+    const filePath = path.join(__dirname, 'uploads', req.params.filename);
+    fs.unlink(filePath, err => {
+        if (err) {
+            return res.status(404).send('File not found');
+        }
+        res.send('File deleted successfully');
+    });
 });
 
+// start the server
 app.listen(3000, () => {
-	        console.log('Server is running on http://localhost:3000');
-});
+    console.log('Server is running on http://localhost:3000');
+});
\ No newline at end of file