import { Router } from 'express';
import { AccountStatus, AccountType, accountService } from '../data/db.service.js';
import type { Account } from '../types.js';

const router = Router();

// GET /api/accounts - Get all accounts
// biome-ignore lint/suspicious/noExplicitAny: Express handler types require any for req/res
router.get('/', async (req: any, res: any) => {
  try {
    console.log('GET /api/accounts - Fetching all accounts');
    const accounts = await accountService.getAll();
    console.log('GET /api/accounts - Found accounts:', accounts?.length ?? 0);

    res.json(accounts || []);
  } catch (error) {
    console.error('Error fetching accounts:', error);
    res.status(500).json({
      error: 'Failed to fetch accounts',
      details: error instanceof Error ? error.message : 'Unknown error',
    });
  }
});

// POST /api/accounts - Create new account
// biome-ignore lint/suspicious/noExplicitAny: Express handler types require any for req/res
router.post('/', async (req: any, res: any) => {
  try {
    const accountData = req.body as Omit<Account, 'id' | 'createdAt' | 'updatedAt'>;

    // Validate required fields
    if (!accountData.name || !accountData.bankName || !accountData.accountNumber) {
      return res.status(400).json({
        error: 'Missing required fields: name, bankName, and accountNumber are required',
      });
    }

    // Set default values and ensure proper type casting
    const data = {
      ...accountData,
      balance: accountData.balance ? Number(accountData.balance) : 0,
      type: (accountData.type as AccountType) || AccountType.CHECKING,
      status: (accountData.status as AccountStatus) || AccountStatus.ACTIVE,
      notes: accountData.notes || undefined,
    };

    // Create the account
    const newAccount = await accountService.create(data);

    res.status(201).json(newAccount);
  } catch (error) {
    console.error('Error creating account:', error);
    res.status(500).json({ error: 'Failed to create account' });
  }
});

// GET /api/accounts/:id - Get single account
// biome-ignore lint/suspicious/noExplicitAny: Express handler types require any for req/res
router.get('/:id', async (req: any, res: any) => {
  try {
    const { id } = req.params;

    if (!id) {
      return res.status(400).json({ error: 'Account ID is required' });
    }

    const account = await accountService.getById(id);

    if (!account) {
      return res.status(404).json({ error: 'Account not found' });
    }

    res.json(account);
  } catch (error) {
    console.error('Error fetching account:', error);
    res.status(500).json({ error: 'Failed to fetch account' });
  }
});

// GET /api/accounts/:id/transactions - Get transactions for account
// biome-ignore lint/suspicious/noExplicitAny: Express handler types require any for req/res
router.get('/:id/transactions', async (req: any, res: any) => {
  try {
    const { id } = req.params;

    if (!id) {
      return res.status(400).json({ error: 'Account ID is required' });
    }

    const transactions = await accountService.getTransactions(id);
    res.json(transactions || []);
  } catch (error) {
    console.error('Error fetching account transactions:', error);
    res.status(500).json({ error: 'Failed to fetch account transactions' });
  }
});

export default router;