import {
  accountTypeLabel,
  isOperativeAccount,
  maskAccountNumber,
} from './accountRules';
import type { CbsAccount } from '../../../types/cbs';

/**
 * The four accounts `GET /accounts` returns for a real profile, copied from a
 * live response. Two operative accounts and two deposits, which is the shape
 * the picker rules exist for.
 */
const LIVE_ACCOUNTS: CbsAccount[] = [
  {
    accountNumber: '70108103544967',
    accountType: 'FIXED_DEPOSIT',
    status: 'ACTIVE',
    ifsc: 'SIM0000001',
    mmid: null,
  },
  {
    accountNumber: '60108103544967',
    accountType: 'CURRENT',
    status: 'ACTIVE',
    ifsc: 'SIM0000001',
    mmid: '1072199',
  },
  {
    accountNumber: '50108103544967',
    accountType: 'SAVINGS',
    status: 'ACTIVE',
    ifsc: 'SIM0000001',
    mmid: '1072220',
  },
  {
    accountNumber: '80108103544967',
    accountType: 'RECURRING_DEPOSIT',
    status: 'ACTIVE',
    ifsc: 'SIM0000001',
    mmid: null,
  },
];

describe('isOperativeAccount', () => {
  it('offers only the savings and current accounts from a live profile', () => {
    expect(LIVE_ACCOUNTS.filter(isOperativeAccount).map((a) => a.accountType)).toEqual([
      'CURRENT',
      'SAVINGS',
    ]);
  });

  it.each(['FIXED_DEPOSIT', 'RECURRING_DEPOSIT'] as const)(
    'never offers a %s, even when it is active',
    (accountType) => {
      expect(
        isOperativeAccount({
          accountNumber: '70108103544967',
          accountType,
          status: 'ACTIVE',
          ifsc: 'SIM0000001',
          mmid: null,
        }),
      ).toBe(false);
    },
  );

  // A dormant savings account is still the customer's, and still worth listing
  // on an enquiry screen — but a transfer debited from it would be refused.
  it.each(['DORMANT', 'BLOCKED', 'CLOSED'] as const)(
    'does not offer a savings account that is %s',
    (status) => {
      expect(
        isOperativeAccount({
          accountNumber: '50108103544967',
          accountType: 'SAVINGS',
          status,
          ifsc: 'SIM0000001',
          mmid: '1072220',
        }),
      ).toBe(false);
    },
  );
});

describe('accountTypeLabel', () => {
  it('turns the API_SHAPE into something readable', () => {
    expect(accountTypeLabel('FIXED_DEPOSIT')).toBe('Fixed deposit');
    expect(accountTypeLabel('RECURRING_DEPOSIT')).toBe('Recurring deposit');
    expect(accountTypeLabel('SAVINGS')).toBe('Savings');
  });
});

describe('maskAccountNumber', () => {
  // The unmasked number arrives only from `GET /accounts`, and must not reach
  // the screen except where the customer is confirming it.
  it('keeps only the last four digits', () => {
    expect(maskAccountNumber('50108103544967')).toBe('XXXX 4967');
  });
});