from datetime import date
from decimal import Decimal

from app.models.tables import Account, Statement, Transaction


def test_account_transaction_roundtrip(db):
    acc = Account(bank="DKB", iban="DE02120300000000202051", name="Giro", type="giro")
    db.add(acc)
    db.flush()
    st = Statement(filename="a.pdf", bank="DKB", account_id=acc.id,
                   period_start=date(2026, 6, 1), period_end=date(2026, 6, 30),
                   opening_balance=Decimal("100.00"), closing_balance=Decimal("50.00"),
                   status="draft")
    db.add(st)
    db.flush()
    tx = Transaction(account_id=acc.id, statement_id=st.id,
                     booking_date=date(2026, 6, 3), value_date=date(2026, 6, 3),
                     amount=Decimal("-50.00"), purpose="Miete Juni",
                     counterparty="Vermieter GmbH", status="draft",
                     dedup_hash="abc", is_duplicate=False)
    db.add(tx)
    db.commit()
    assert db.query(Transaction).one().amount == Decimal("-50.00")