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routes/refinity.js

@@ -86,52 +86,69 @@ router.post('/track-changes-comments', async (req, res) => {
     const authorName = String(req.body?.authorName || 'Refinity');
     const authorInitials = String(req.body?.authorInitials || (authorName.split(/\s+/).map(s=>s[0]||'').join('').slice(0,3).toUpperCase()) || 'RF');
 
-    const parts = diffWords(prev, current);
-
-    // Build paragraph runs and attach side comments for added/removed
-    let nextCommentId = 0;
-    const comments = new Comments();
-
-    const children = [];
-    parts.forEach((p) => {
-      const value = p.value || '';
-      if (!value) return;
-      if (p.added) {
-        const cid = nextCommentId++;
-        comments.create(cid, authorName, authorInitials, new Date(), [
-          new Paragraph({ children: [ new TextRun({ text: 'Added: ', bold: true }), new TextRun({ text: value }) ] })
-        ]);
-        children.push(new CommentRangeStart(cid));
-        children.push(new TextRun({ text: value, underline: {}, color: '00A65A' }));
-        children.push(new CommentRangeEnd(cid));
-        children.push(new CommentReference(cid));
-        return;
-      }
-      if (p.removed) {
-        const cid = nextCommentId++;
-        comments.create(cid, authorName, authorInitials, new Date(), [
-          new Paragraph({ children: [ new TextRun({ text: 'Removed: ', bold: true }), new TextRun({ text: value }) ] })
-        ]);
-        children.push(new CommentRangeStart(cid));
-        children.push(new TextRun({ text: value, strike: true, color: 'D14343' }));
-        children.push(new CommentRangeEnd(cid));
-        children.push(new CommentReference(cid));
-        return;
-      }
-      children.push(new TextRun({ text: value }));
-    });
-
-    const doc = new Document({
-      sections: [
-        { properties: {}, children: [ new Paragraph({ children }) ] }
-      ],
-      comments,
-    });
-
-    const buffer = await Packer.toBuffer(doc);
-    res.setHeader('Content-Type', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document');
-    res.setHeader('Content-Disposition', `attachment; filename="${outName}"`);
-    res.send(Buffer.from(buffer));
+    try {
+      const parts = diffWords(prev, current);
+      // Build paragraph runs and attach side comments for added/removed
+      let nextCommentId = 0;
+      const comments = new Comments();
+      const children = [];
+      parts.forEach((p) => {
+        const value = p.value || '';
+        if (!value) return;
+        if (p.added) {
+          const cid = nextCommentId++;
+          comments.create(cid, authorName, authorInitials, new Date(), [
+            new Paragraph({ children: [ new TextRun({ text: 'Added: ', bold: true }), new TextRun({ text: value }) ] })
+          ]);
+          children.push(new CommentRangeStart(cid));
+          children.push(new TextRun({ text: value, underline: {}, color: '00A65A' }));
+          children.push(new CommentRangeEnd(cid));
+          children.push(new CommentReference(cid));
+          return;
+        }
+        if (p.removed) {
+          const cid = nextCommentId++;
+          comments.create(cid, authorName, authorInitials, new Date(), [
+            new Paragraph({ children: [ new TextRun({ text: 'Removed: ', bold: true }), new TextRun({ text: value }) ] })
+          ]);
+          children.push(new CommentRangeStart(cid));
+          children.push(new TextRun({ text: value, strike: true, color: 'D14343' }));
+          children.push(new CommentRangeEnd(cid));
+          children.push(new CommentReference(cid));
+          return;
+        }
+        children.push(new TextRun({ text: value }));
+      });
+
+      const doc = new Document({
+        sections: [
+          { properties: {}, children: [ new Paragraph({ children }) ] }
+        ],
+        comments,
+      });
+      const buffer = await Packer.toBuffer(doc);
+      res.setHeader('Content-Type', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document');
+      res.setHeader('Content-Disposition', `attachment; filename="${outName}"`);
+      res.send(Buffer.from(buffer));
+      return;
+    } catch (e1) {
+      // Fallback: simple in-line diff without comments to avoid 500
+      const parts = diffWords(prev, current);
+      const runs = [];
+      parts.forEach(p => {
+        const value = p.value || '';
+        if (!value) return;
+        if (p.added) runs.push(new TextRun({ text: value, color: '00A65A' }));
+        else if (p.removed) runs.push(new TextRun({ text: value, color: 'D14343', strike: true }));
+        else runs.push(new TextRun({ text: value }));
+      });
+      const doc = new Document({ sections: [ { properties: {}, children: [ new Paragraph({ children: runs }) ] } ] });
+      const buffer = await Packer.toBuffer(doc);
+      res.setHeader('Content-Type', 'application/vnd.openxmlformats-officedocument.wordprocessingml.document');
+      res.setHeader('Content-Disposition', `attachment; filename="${outName}"`);
+      res.send(Buffer.from(buffer));
+      return;
+    }
   } catch (e) {
     res.status(500).json({ error: 'Failed to generate document with comments' });
   }