import { afterEach, beforeEach, describe, expect, it } from 'vitest';
import { parseOfx } from '../src/import/ofx';
import { makeApp, setUpAdmin, type Client, type TestApp } from './helpers';

// Made-up OFX files in both flavors banks send: the older SGML style with
// unclosed tags (bank account), and XML (credit card, as in a .qfx).

const SGML = `OFXHEADER:100
DATA:OFXSGML
VERSION:102
SECURITY:NONE
ENCODING:USASCII
CHARSET:1252

<OFX>
<SIGNONMSGSRSV1><SONRS><STATUS><CODE>0<SEVERITY>INFO</STATUS><DTSERVER>20261007120000<LANGUAGE>ENG<FI><ORG>Bank of America<FID>5959</FI></SONRS></SIGNONMSGSRSV1>
<BANKMSGSRSV1><STMTTRNRS><TRNUID>1<STATUS><CODE>0<SEVERITY>INFO</STATUS>
<STMTRS><CURDEF>USD<BANKACCTFROM><BANKID>000000000<ACCTID>000099991234<ACCTTYPE>CHECKING</BANKACCTFROM>
<BANKTRANLIST><DTSTART>20260901<DTEND>20260930
<STMTTRN><TRNTYPE>CREDIT<DTPOSTED>20260905120000.000[-5:EST]<TRNAMT>3000.00<FITID>A1<NAME>ACME CORP PAYROLL<MEMO>PPD ID: 123</STMTTRN>
<STMTTRN><TRNTYPE>DEBIT<DTPOSTED>20260912<TRNAMT>-54.20<FITID>A2<NAME>KROGER #123 CHARLOTTE NC</STMTTRN>
<STMTTRN><TRNTYPE>XFER<DTPOSTED>20260915<TRNAMT>-300.00<FITID>A3<NAME>Online Banking transfer to SAV<MEMO>5678 Confirmation# 1</STMTTRN>
<STMTTRN><TRNTYPE>DEBIT<DTPOSTED>20260920<TRNAMT>-12,50<FITID>A4<NAME>JOES COFFEE &amp; BAGELS</STMTTRN>
</BANKTRANLIST><LEDGERBAL><BALAMT>4633.30<DTASOF>20260930</LEDGERBAL><AVAILBAL><BALAMT>4633.30<DTASOF>20260930</AVAILBAL></STMTRS></STMTTRNRS></BANKMSGSRSV1></OFX>
`;

const XML = `<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?OFX OFXHEADER="200" VERSION="220" SECURITY="NONE" OLDFILEUID="NONE" NEWFILEUID="NONE"?>
<OFX><CREDITCARDMSGSRSV1><CCSTMTTRNRS><TRNUID>1</TRNUID><CCSTMTRS><CURDEF>USD</CURDEF>
<CCACCTFROM><ACCTID>4111XXXXXXXX9876</ACCTID></CCACCTFROM>
<BANKTRANLIST><DTSTART>20260901</DTSTART><DTEND>20260930</DTEND>
<STMTTRN><TRNTYPE>DEBIT</TRNTYPE><DTPOSTED>20260903</DTPOSTED><DTUSER>20260902</DTUSER><TRNAMT>-23.99</TRNAMT><FITID>C1</FITID><NAME>AMAZON MKTPL*AB12CD3E4</NAME></STMTTRN>
<STMTTRN><TRNTYPE>CREDIT</TRNTYPE><DTPOSTED>20260907</DTPOSTED><TRNAMT>18.50</TRNAMT><FITID>C2</FITID><NAME>AMAZON MKTPL*QR56ST7U8</NAME><MEMO>Return</MEMO></STMTTRN>
<STMTTRN><TRNTYPE>DEBIT</TRNTYPE><DTPOSTED>20260912</DTPOSTED><TRNAMT>-15.49</TRNAMT><FITID>C3</FITID><NAME>NETFLIX.COM</NAME></STMTTRN>
</BANKTRANLIST><LEDGERBAL><BALAMT>-412.33</BALAMT><DTASOF>20260930</DTASOF></LEDGERBAL></CCSTMTRS></CCSTMTTRNRS></CREDITCARDMSGSRSV1></OFX>
`;

describe('reading OFX', () => {
  it('reads the older SGML style', () => {
    const s = parseOfx(SGML);
    expect(s).toMatchObject({ kind: 'checking', institution: 'Bank of America', accountLast4: '1234', ledger: { cents: 463330, date: '2026-09-30' } });
    expect(s.transactions.map((t) => [t.date, t.amountCents, t.name])).toEqual([
      ['2026-09-05', 300000, 'ACME CORP PAYROLL'],
      ['2026-09-12', -5420, 'KROGER #123 CHARLOTTE NC'],
      ['2026-09-15', -30000, 'Online Banking transfer to SAV'],
      ['2026-09-20', -1250, 'JOES COFFEE & BAGELS'],
    ]);
  });

  it('reads XML, using the purchase date when there is one', () => {
    const s = parseOfx(XML);
    expect(s).toMatchObject({ kind: 'credit_card', accountLast4: '9876' });
    expect(s.transactions[0]).toMatchObject({ date: '2026-09-02', postedDate: '2026-09-03', amountCents: -2399 });
    expect(s.transactions[1]).toMatchObject({ amountCents: 1850, memo: 'Return' });
  });
});

describe('importing OFX', () => {
  let t: TestApp;
  let admin: Client;
  beforeEach(async () => {
    t = await makeApp();
    admin = await setUpAdmin(t);
  });
  afterEach(() => t.cleanup());

  it('imports with no mapping, matches the account by its last digits, and skips repeats', async () => {
    const checking = (await admin.post('/api/v1/accounts', { name: 'Checking', kind: 'checking', institution: 'Bank of America', last4: '1234' })).json.id;
    await admin.post('/api/v1/accounts', { name: 'Prime Visa', kind: 'credit_card', institution: 'Chase', last4: '9876' });

    const preview = await admin.upload('/api/v1/imports/files', 'export.qfx', SGML);
    expect(preview.json).toMatchObject({ layout: { key: 'ofx' }, account: { id: checking, confidence: 'certain' }, counts: { new: 4 } });
    const done = await admin.post('/api/v1/imports', { stagingId: preview.json.stagingId, accountId: checking });
    expect(done.status).toBe(200);

    const page = (await admin.get(`/api/v1/transactions?accountId=${checking}`)).json;
    expect(page.items.map((x: { merchant: string }) => x.merchant)).toContain('Kroger');
    const account = ((await admin.get('/api/v1/accounts')).json as { id: number; balanceCents: number; balanceConfirmedOn: string }[]).find((a) => a.id === checking)!;
    expect(account).toMatchObject({ balanceCents: 463330, balanceConfirmedOn: '2026-09-20' });

    const again = await admin.upload('/api/v1/imports/files', 'export.qfx', SGML);
    expect(again.json.counts).toMatchObject({ new: 0, duplicates: 4 });

    const card = await admin.upload('/api/v1/imports/files', 'Statement.qfx', XML);
    expect(card.json.account.confidence).toBe('certain');
    expect(card.json.accountHint).toMatchObject({ kind: 'credit_card' });
  });
});