import pytest


@pytest.mark.parametrize(
    "input,expected",
    [
        ("a", False),
        ("", True),
        (" ", True),
        (" a ", False),
        (None, True),
        (0, False),
        (2.2, False),
    ],
)
def test_is_empty_excel_value(input, expected):
    from superx_budget.helpers import is_empty_excel_value

    result = is_empty_excel_value(input)

    assert result == expected


@pytest.mark.parametrize(
    "input,expected",
    [
        ("a", "a"),
        ("", ""),
        (" ", ""),
        (" a ", "a"),
        (None, None),
        (1, 1),
        (2.2, 2.2),
    ],
)
def test_strip_excel_value(input, expected):
    from superx_budget.helpers import strip_excel_value

    result = strip_excel_value(input)

    assert result == expected


def test_get_sheet_of_file_first(budget_example_file):
    from superx_budget.helpers import get_sheet_of_file

    sheet = get_sheet_of_file(budget_example_file)  # sheet=None
    first_row = next(sheet.values)
    first_cell = first_row[0]

    assert first_cell.strip() == "Nr."


def test_get_sheet_of_file_named(budget_example_file):
    from superx_budget.helpers import get_sheet_of_file

    sheet = get_sheet_of_file(budget_example_file, sheet="Übersicht")
    first_row = next(sheet.values)
    first_cell = first_row[0]

    assert first_cell.strip() == "Nr."


@pytest.mark.parametrize(
    "input,expected",
    [
        (None, 0),
        ("", 0),
        ("a", 0),
        ("1", 1.0),
        ("2.4", 2.4),
        (1, 1),
        (2.4, 2.4),
    ],
)
def test_excel_value_as_number(input, expected):
    from superx_budget.helpers import excel_value_as_number

    result = excel_value_as_number(input)

    assert result == expected


@pytest.mark.parametrize(
    "name,expected",
    [
        ("budget-2019.xlsx", True),
        ("budget-template-2020.xlsx", True),
        ("budget-2018.xlsx", False),
        ("xxxxxx-2019.xlsx", False),
        ("budget-2019.xxxx", False),
        ("budget-2x19.xlsx", False),
        ("budget_2019.xlsx", False),
    ],
)
def test_is_budget_file_name(name, expected):
    from superx_budget.helpers import is_budget_file_name

    result = is_budget_file_name(name)

    assert result == expected


def test_list_budget_files(example_root):
    from superx_budget.helpers import list_budget_files

    result = list_budget_files(example_root)

    assert sorted(r.name for r in result) == [
        "Budget-Vorlage-2019.xlsx",
        "Budget-Vorlage-2020.xlsx",
        "Budget-Vorlage-2024.xlsx",
    ]


def test_find_budget_file_found(example_root):
    from superx_budget.helpers import find_budget_file

    result = find_budget_file(example_root, 2020)

    assert result.name == "Budget-Vorlage-2020.xlsx"


def test_find_budget_file_not_found(example_root):
    from superx_budget.helpers import find_budget_file

    result = find_budget_file(example_root, 1999)

    assert result is None


def test_find_recipients_ok(example_root):
    from superx_budget.helpers import find_recipients

    result = find_recipients(example_root, "recipients.txt")

    assert result == [
        "frey@imtek.de",
        "imtek@holgerfrey.de",
        "superx@holgerfrey.de",
    ]


def test_find_recipients_default(example_root):
    from superx_budget.helpers import find_recipients

    result = find_recipients(example_root, "unknown file")

    assert result == ["frey@imtek.de"]