Add color request feature with modal and Safari styling fixes

- Implement color request modal popup instead of separate page
- Add Serbian translations throughout
- Fix Safari form styling issues with custom CSS
- Add 'Other' option to material and finish dropdowns
- Create admin panel for managing color requests
- Add database migration for color_requests table
- Implement API endpoints for color request management

api/server.js

@@ -236,6 +236,128 @@ app.post('/api/filaments/sale/bulk', authenticateToken, async (req, res) => {
   }
 });
 
+// Color request endpoints
+
+// Get all color requests (admin only)
+app.get('/api/color-requests', authenticateToken, async (req, res) => {
+  try {
+    const result = await pool.query(
+      'SELECT * FROM color_requests ORDER BY created_at DESC'
+    );
+    res.json(result.rows);
+  } catch (error) {
+    console.error('Error fetching color requests:', error);
+    res.status(500).json({ error: 'Failed to fetch color requests' });
+  }
+});
+
+// Submit a new color request (public)
+app.post('/api/color-requests', async (req, res) => {
+  try {
+    const { 
+      color_name, 
+      material_type, 
+      finish_type, 
+      user_email, 
+      user_name, 
+      description,
+      reference_url 
+    } = req.body;
+
+    // Check if similar request already exists
+    const existingRequest = await pool.query(
+      `SELECT id, request_count FROM color_requests 
+       WHERE LOWER(color_name) = LOWER($1) 
+       AND material_type = $2 
+       AND (finish_type = $3 OR (finish_type IS NULL AND $3 IS NULL))
+       AND status = 'pending'`,
+      [color_name, material_type, finish_type]
+    );
+
+    if (existingRequest.rows.length > 0) {
+      // Increment request count for existing request
+      const result = await pool.query(
+        `UPDATE color_requests 
+         SET request_count = request_count + 1,
+             updated_at = CURRENT_TIMESTAMP
+         WHERE id = $1
+         RETURNING *`,
+        [existingRequest.rows[0].id]
+      );
+      res.json({ 
+        message: 'Your request has been added to an existing request for this color',
+        request: result.rows[0] 
+      });
+    } else {
+      // Create new request
+      const result = await pool.query(
+        `INSERT INTO color_requests 
+         (color_name, material_type, finish_type, user_email, user_name, description, reference_url)
+         VALUES ($1, $2, $3, $4, $5, $6, $7)
+         RETURNING *`,
+        [color_name, material_type, finish_type, user_email, user_name, description, reference_url]
+      );
+      res.json({ 
+        message: 'Color request submitted successfully',
+        request: result.rows[0] 
+      });
+    }
+  } catch (error) {
+    console.error('Error creating color request:', error);
+    res.status(500).json({ error: 'Failed to submit color request' });
+  }
+});
+
+// Update color request status (admin only)
+app.put('/api/color-requests/:id', authenticateToken, async (req, res) => {
+  try {
+    const { id } = req.params;
+    const { status, admin_notes } = req.body;
+    
+    const result = await pool.query(
+      `UPDATE color_requests 
+       SET status = $1, 
+           admin_notes = $2,
+           processed_at = CURRENT_TIMESTAMP,
+           processed_by = $3,
+           updated_at = CURRENT_TIMESTAMP
+       WHERE id = $4
+       RETURNING *`,
+      [status, admin_notes, req.user.username, id]
+    );
+    
+    if (result.rows.length === 0) {
+      return res.status(404).json({ error: 'Color request not found' });
+    }
+    
+    res.json(result.rows[0]);
+  } catch (error) {
+    console.error('Error updating color request:', error);
+    res.status(500).json({ error: 'Failed to update color request' });
+  }
+});
+
+// Delete color request (admin only)
+app.delete('/api/color-requests/:id', authenticateToken, async (req, res) => {
+  try {
+    const { id } = req.params;
+    
+    const result = await pool.query(
+      'DELETE FROM color_requests WHERE id = $1 RETURNING *',
+      [id]
+    );
+    
+    if (result.rows.length === 0) {
+      return res.status(404).json({ error: 'Color request not found' });
+    }
+    
+    res.json({ message: 'Color request deleted successfully' });
+  } catch (error) {
+    console.error('Error deleting color request:', error);
+    res.status(500).json({ error: 'Failed to delete color request' });
+  }
+});
+
 app.listen(PORT, () => {
   console.log(`Server running on port ${PORT}`);
 });