from datetime import datetime

import pytest

from delivery_metadata.utils.datetime import (
    convert_date_to_string,
    get_datetime_from_string,
    get_datetime_from_string_or_none,
    seconds_to_iso8601_duration,
)


@pytest.mark.parametrize(
    ("seconds", "expected_duration"),
    [
        (0, "PT0H0M0S"),
        (1, "PT0H0M1S"),
        (60, "PT0H1M0S"),
        (61, "PT0H1M1S"),
        (3600, "PT1H0M0S"),
        (3660, "PT1H1M0S"),
        (3661, "PT1H1M1S"),
    ],
)
def test_seconds_to_iso8601_duration(seconds: int, expected_duration: str) -> None:
    assert seconds_to_iso8601_duration(seconds) == expected_duration


def test_convert_date_to_string() -> None:
    assert convert_date_to_string(datetime(2025, 2, 10)) == "2025-02-10"


@pytest.mark.parametrize(
    "mock_date_str, expected_datetime",
    [
        (None, None),
        ("2024-08-10", datetime(2024, 8, 10)),
    ],
)
def test__from_string_or_none(
    mock_date_str: str | None,
    expected_datetime: datetime | None,
) -> None:
    result = get_datetime_from_string_or_none(mock_date_str)
    assert result == expected_datetime


@pytest.mark.parametrize(
    "mock_date_str, expected_datetime",
    [
        ("2024-08-10", datetime(2024, 8, 10)),
        ("2026-12-31 14:30:00", datetime(2026, 12, 31, 14, 30)),
        ("2025-09-23T13:57:00Z", datetime(2025, 9, 23, 13, 57)),
    ],
)
def test_get_datetime_from_string(
    mock_date_str: str,
    expected_datetime: datetime,
) -> None:
    result = get_datetime_from_string(mock_date_str)
    assert result == expected_datetime


@pytest.mark.parametrize(
    "mock_date_str, expected_error",
    [
        ("08, 10, 2024", "Date '08, 10, 2024' is not in a known format."),
        (
            "2026-12-31 T14:30:00 Z",
            "Date '2026-12-31 T14:30:00 Z' is not in a known format.",
        ),
        ("2025-09-23 13 57 00", "Date '2025-09-23 13 57 00' is not in a known format."),
    ],
)
def test_get_datetime_from_string_exception(
    mock_date_str: str,
    expected_error: str,
) -> None:
    with pytest.raises(ValueError, match=expected_error):
        get_datetime_from_string(mock_date_str)