""" Stub file for testing the project """

from pathlib import Path
from collections import namedtuple

import pytest

DummyValue = namedtuple("DummyValue", "value")


class DummySheet:
    def __init__(self, data):
        self._data = data

    @property
    def rows(self):
        for line in self._data:
            yield [DummyValue(value) for value in line]


@pytest.fixture
def example_file(request):
    root_dir = Path(request.config.rootdir)
    data_dir = root_dir / "test data"
    return data_dir / "Verwendungsnachweis_und_Kassenstand_SAP_Zahlen.xlsx"


@pytest.fixture
def example_workbook(example_file):
    import openpyxl

    return openpyxl.open(example_file)


def test_check_export_headline():
    from superx_budget import _check_export_headline, SuperXError

    row = [DummyValue("nomatching header")]

    with pytest.raises(SuperXError):
        _check_export_headline(row)


def test_get_export_metadata_ok():
    from superx_budget import _get_export_metadata
    from datetime import datetime

    value = "Haushaltsjahr: XXX;Stand:31.12.2020;Gruppierung:automatisch"
    row = [DummyValue(value)]
    metadata = _get_export_metadata(row)

    assert metadata.account_year == "XXX"
    assert metadata.export_date == datetime(2020, 12, 31)


@pytest.mark.parametrize(
    "faulty_data",
    [
        "Haushaltsjahr:XXX;Kein Stand:31.12.2020;Gruppierung:automatisch",
        "Kein Haushaltsjahr:XXX;Stand:31.12.2020;Gruppierung:automatisch",
        "Kein Haushaltsjahr:XXX;Kein Stand:31.12.2020;Gruppierung:automatisch",
        "Haushaltsjahr:XXX;Stand:kein Datum;Gruppierung:automatisch",
        "Haushaltsjahr:XXX;Stand:31.12.2020;keine Gruppierung:automatisch",
        "Haushaltsjahr:XXX;Stand:31.12.2020;Gruppierung:nicht automatisch",
    ],
)
def test_get_export_metadata_raises_error(faulty_data):
    from superx_budget import _get_export_metadata

    row = [DummyValue(faulty_data)]

    with pytest.raises(ValueError):  # SuperXError is a subclass of ValueError
        _get_export_metadata(row)


def test_skip_export_data_until_table_header_ok():
    from superx_budget import _skip_export_data_until_table_header

    rows = [
        [DummyValue("")],
        [DummyValue("")],
        [DummyValue("Kostenstelle")],
        [DummyValue("Daten")],
    ]
    iterator = iter(rows)
    _skip_export_data_until_table_header(iterator)
    data_line = next(iterator)

    assert data_line[0].value == "Daten"


def test_skip_export_data_until_table_header_raises_error():
    from superx_budget import _skip_export_data_until_table_header, SuperXError

    rows = [
        [DummyValue("")],
        [DummyValue("")],
        [DummyValue("Keine Kostenstelle")],
        [DummyValue("Daten")],
    ]
    iterator = iter(rows)
    with pytest.raises(SuperXError):
        _skip_export_data_until_table_header(iterator)


def test_parse_data_table():
    from superx_budget import _parse_data_table

    rows = [
        [DummyValue(v) for v in "ABCDEFGHIJ"],
        [DummyValue("") for i in range(10)],
        [DummyValue(v) for v in "qrstuvwxyzX"],  # one column more
    ]
    result = _parse_data_table(rows)
    first_value, second_value = list(result)

    assert first_value.cost_center == "A"
    assert first_value.fonds == "B"
    assert first_value.acutal_value == "J"
    assert second_value.cost_center == "q"
    assert second_value.acutal_value == "z"


def test_parse_export_data(example_workbook):
    from superx_budget import parse_export_data
    from datetime import datetime

    result = parse_export_data(example_workbook.active)

    assert result.account_year == "2020"
    assert result.export_date == datetime(2020, 3, 18)
    assert len(result.data) == 212

    first, last = result.data[0], result.data[-1]
    assert first.cost_center == "1110200121"
    assert first.fonds == "3310"
    assert first.project == "1100000102"
    assert first.kind == "1 - Personal"
    assert first.budget_year is None
    assert first.obligo == 0.01
    assert first.expenses == 1000
    assert first.revenue_actual == 2000
    assert first.revenue_target == 3000
    assert first.acutal_value == 4000
    assert last.cost_center == "1110200121"
    assert last.fonds == "1123"
    assert last.project == "8200062807"
    assert last.kind == "KASSENSTAND zum Ende des Betrachungszeitraums"
    assert last.budget_year is None
    assert last.obligo == 236
    assert last.expenses == 1236
    assert last.revenue_actual == 2236
    assert last.revenue_target == 3236
    assert last.acutal_value == 4236