"""Tests for ledgerly.money (R3, Money value semantics)."""

import pytest

from ledgerly.money import InvalidMoney, Money


def test_parse_integer_string():
    assert Money.parse("42") == Money(4200)


def test_parse_two_decimals():
    assert Money.parse("12.34") == Money(1234)


def test_parse_rounds_half_up():
    assert Money.parse("12.345") == Money(1235)
    assert Money.parse("12.344") == Money(1234)


def test_parse_negative():
    assert Money.parse("-1.50") == Money(-150)


def test_parse_accepts_numbers():
    assert Money.parse(3) == Money(300)
    assert Money.parse(2.5) == Money(250)


def test_parse_rejects_garbage():
    for bad in ("abc", "", None):
        with pytest.raises(InvalidMoney):
            Money.parse(bad)


def test_parse_rejects_non_finite():
    for bad in ("inf", "-inf", "nan"):
        with pytest.raises(InvalidMoney):
            Money.parse(bad)


def test_cents_must_be_int():
    for bad in ("5", 1.5, True):
        with pytest.raises(TypeError):
            Money(bad)


def test_predicates():
    assert Money(0).is_zero
    assert not Money(1).is_zero
    assert Money(1).is_positive
    assert not Money(0).is_positive
    assert not Money(-1).is_positive


def test_zero_classmethod():
    assert Money.zero() == Money(0)


def test_arithmetic():
    a, b = Money(100), Money(25)
    assert a + b == Money(125)
    assert a - b == Money(75)
    assert Money(10) - Money(20) == Money(-10)


def test_arithmetic_type_errors():
    with pytest.raises(TypeError):
        Money(1) + 1
    with pytest.raises(TypeError):
        Money(1) - "1"


def test_ordering_and_hash():
    assert Money(1) < Money(2)
    assert Money(2) <= Money(2)
    assert Money(2) == Money(2)
    assert hash(Money(2)) == hash(Money(2))


def test_not_equal_to_other_types():
    assert Money(1) != 1
    assert Money(1) != "1"


def test_str_formatting():
    assert str(Money(0)) == "$0.00"
    assert str(Money(123456)) == "$1,234.56"
    assert str(Money(-100)) == "-$1.00"


def test_format_supports_alignment():
    assert format(Money(150000), "<12") == "$1,500.00   "
    assert format(Money(150000), "") == "$1,500.00"


def test_repr():
    assert repr(Money(42)) == "Money(42)"