feat: sync Excel data to Supabase on load - detect new Dropbox files automatically

api/dropbox-proxy.js

@@ -1,23 +1,36 @@
-// Vercel serverless function — proxies the Dropbox file server-side (no CORS)
+const Dropbox = require('dropbox').Dropbox;
+
 export default async function handler(req, res) {
-  const fileUrl =
-    'https://dl.dropboxusercontent.com/scl/fi/nkyabkq2jdwfudof2ovrl/Data-Matrix.xlsx' +
-    '?rlkey=1cz5fuabwipqqivihii7sybw0&st=io0g4wvb&dl=1';
+  if (req.method === 'GET' && req.query.info === '1') {
+    const DBX = new Dropbox({ 
+      accessToken: process.env.DROPBOX_ACCESS_TOKEN 
+    });
+    
+    try {
+      const fileInfo = await DBX.filesGetInfo({ path: '/Data-Matrix.xlsx' });
+      return res.json({
+        rev: fileInfo.result.rev,
+        size: fileInfo.result.size,
+        server_modified: fileInfo.result.server_modified
+      });
+    } catch (err) {
+      return res.status(500).json({ error: err.message });
+    }
+  }
+
+  const DBX = new Dropbox({ 
+    accessToken: process.env.DROPBOX_ACCESS_TOKEN 
+  });
 
   try {
-    const upstream = await fetch(fileUrl, {
-      headers: { 'User-Agent': 'Mozilla/5.0' },
-    });
-
-    if (!upstream.ok) {
-      return res.status(upstream.status).send(`Dropbox error: ${upstream.status}`);
-    }
-
-    const buffer = await upstream.arrayBuffer();
+    const upstream = await DBX.filesDownload({ path: '/Data-Matrix.xlsx' });
+    const buffer = Buffer.from(upstream.result.fileBinary);
+    
     res.setHeader('Content-Type', 'application/octet-stream');
     res.setHeader('Cache-Control', 'no-store');
-    res.send(Buffer.from(buffer));
+    res.send(buffer);
   } catch (err) {
+    console.error('Dropbox error:', err);
     res.status(500).send('Proxy error: ' + err.message);
   }
 }