import { Router } from 'express';
import { asyncHandler } from '../utils';
import * as transactionService from '../services/transactions';

const router = Router();

router.delete(
  '/',
  asyncHandler(async (_req, res) => {
    const result = await transactionService.clearAllTransactions();
    res.json(result);
  }),
);

router.get(
  '/',
  asyncHandler(async (req, res) => {
    const q = req.query;
    const result = await transactionService.getTransactions({
      accountId: q.accountId ? Number(q.accountId) : undefined,
      from: q.from as string | undefined,
      to: q.to as string | undefined,
      direction: q.direction as string | undefined,
      categoryId: q.categoryId ? Number(q.categoryId) : undefined,
      search: q.search as string | undefined,
      amountMin: q.amountMin ? Number(q.amountMin) : undefined,
      amountMax: q.amountMax ? Number(q.amountMax) : undefined,
      onlyUnconfirmed: q.onlyUnconfirmed === 'true',
      sortBy: q.sortBy as 'date' | 'amount' | undefined,
      sortOrder: q.sortOrder as 'asc' | 'desc' | undefined,
      page: q.page ? Number(q.page) : undefined,
      pageSize: q.pageSize ? Number(q.pageSize) : undefined,
    });
    res.json(result);
  }),
);

router.put(
  '/:id',
  asyncHandler(async (req, res) => {
    const id = Number(req.params.id);
    if (isNaN(id)) {
      res.status(400).json({ error: 'BAD_REQUEST', message: 'Invalid transaction id' });
      return;
    }

    const { categoryId, comment } = req.body;
    if (categoryId === undefined && comment === undefined) {
      res.status(400).json({ error: 'BAD_REQUEST', message: 'No fields to update' });
      return;
    }

    const result = await transactionService.updateTransaction(id, { categoryId, comment });
    if (!result) {
      res.status(404).json({ error: 'NOT_FOUND', message: 'Transaction not found' });
      return;
    }
    res.json(result);
  }),
);

export default router;