import pytest

from common_cents.money import (
    format_cents,
    format_cents_input,
    parse_cents_csv,
    parse_dollars,
)


@pytest.mark.parametrize(
    "raw, expected",
    [
        ("1", 100),
        ("1.5", 150),
        ("1.50", 150),
        ("$1,234.56", 123456),
        (".50", 50),
        ("5.", 500),
        ("5.999", 599),  # truncate, not round (string-based)
        ("1.005", 100),
        ("-5.00", -500),
        ("-.50", -50),
        ("", None),
        ("   ", None),
        ("abc", None),
        ("$", None),
        ("-", None),
        ("-$5", None),
    ],
)
def test_parse_dollars(raw, expected):
    assert parse_dollars(raw) == expected


@pytest.mark.parametrize(
    "raw, expected",
    [
        ("100", 100),
        ("14,901", 14901),
        (" 50 ", 50),
    ],
)
def test_parse_cents_csv(raw, expected):
    assert parse_cents_csv(raw) == expected


def test_parse_cents_csv_invalid():
    with pytest.raises(ValueError):
        parse_cents_csv("abc")


@pytest.mark.parametrize(
    "cents, expected",
    [
        (0, "$0.00"),
        (100, "$1.00"),
        (1234, "$12.34"),
        (123456, "$1,234.56"),
        (-500, "-$5.00"),
        (-12345, "-$123.45"),
    ],
)
def test_format_cents(cents, expected):
    assert format_cents(cents) == expected


@pytest.mark.parametrize(
    "cents, expected",
    [
        (100, "1.00"),
        (1234, "12.34"),
        (5, "0.05"),
    ],
)
def test_format_cents_input(cents, expected):
    assert format_cents_input(cents) == expected