import { Router } from 'express';
import { z } from 'zod';
import { Minute } from '../models/Minute';
import { requireAuth } from '../middleware/auth';
import { uploadMinutes } from '../middleware/upload';

const router = Router();

router.get('/', async (_req, res) => {
  const minutes = await Minute.find().sort({ order: 1, createdAt: -1 });
  res.json(minutes);
});

router.post('/', requireAuth, uploadMinutes.single('file'), async (req, res) => {
  const schema = z.object({
    date:        z.string().min(1),
    meetingType: z.string().min(1),
    location:    z.string().min(1),
  });
  const data = schema.parse(req.body);
  const fileUrl = req.file
    ? `/uploads/minutes/${req.file.filename}`
    : z.string().min(1).parse(req.body.fileUrl);

  // Insert at top (order 0), shift everything else down
  await Minute.updateMany({}, { $inc: { order: 1 } });
  const minute = await Minute.create({ ...data, fileUrl, order: 0 });
  res.status(201).json(minute);
});

// PATCH /api/minutes/reorder — body: { ids: [id1, id2, ...] } in desired order
router.patch('/reorder', requireAuth, async (req, res) => {
  const { ids } = z.object({ ids: z.array(z.string()) }).parse(req.body);
  await Promise.all(ids.map((id, index) => Minute.findByIdAndUpdate(id, { order: index })));
  res.json({ ok: true });
});

router.delete('/:id', requireAuth, async (req, res) => {
  await Minute.findByIdAndDelete(req.params.id);
  res.status(204).send();
});

export default router;