import { Router } from 'express';
import { eq } from 'drizzle-orm';
import { db } from '../db/client';
import { settings } from '../db/schema';

const router = Router();

const ALLOWED_KEYS = ['rabbitry_name', 'weight_unit', 'kit_prefix', 'theme'] as const;

router.get('/', (req, res) => {
  const rows = db.select().from(settings).all();
  const result: Record<string, string | null> = {};
  for (const row of rows) {
    result[row.key] = row.value;
  }
  res.json(result);
});

router.patch('/', (req, res) => {
  const keys = Object.keys(req.body);
  const unknownKey = keys.find((key) => !ALLOWED_KEYS.includes(key as (typeof ALLOWED_KEYS)[number]));

  if (unknownKey) {
    res.status(400).json({ error: `Unknown setting: ${unknownKey}` });
    return;
  }

  for (const key of keys) {
    db.update(settings).set({ value: req.body[key] }).where(eq(settings.key, key)).run();
  }

  const rows = db.select().from(settings).all();
  const result: Record<string, string | null> = {};
  for (const row of rows) {
    result[row.key] = row.value;
  }
  res.json(result);
});

export default router;