pmdi/backend/routes/invoices.js

const express = require('express');
const Invoice = require('../models/Invoice');
const auth = require('../middleware/auth');
const router = express.Router();

router.get('/', auth, async (req, res) => {
  try {
    const unpaidInvoices = await Invoice.find({ paid: false });
    res.json(unpaidInvoices);
  } catch (error) {
    res.status(500).json({ error: 'Failed to retrieve invoices' });
  }
});

router.post('/:id/pay', auth, async (req, res) => {
  try {
    await Invoice.findByIdAndUpdate(req.params.id, { paid: true });
    res.sendStatus(200);
  } catch (error) {
    res.status(500).json({ error: 'Failed to update invoice' });
  }
});

module.exports = router;