"""Tests for the helper functions in conversions.py"""

from datetime import datetime, timezone

import pytest

from dnidatetime.conversions import (
    hvy2ord,
    ord2hvy,
    earth_to_dni,
    dni_to_earth
)


def test_hvy2ord_8765_4_29():
    assert hvy2ord(8765, 4, 29) == 322306


def test_hvy2ord_8765_5_1():
    assert hvy2ord(8765, 5, 1) == hvy2ord(8765, 4, 29) + 1


def test_hvy2ord_8765_10_29():
    assert hvy2ord(8765, 10, 29) == 322480


def test_hvy2ord_8766_1_1():
    assert hvy2ord(8766, 1, 1) == hvy2ord(8765, 10, 29) + 1


def test_ord2hvy_too_low():
    with pytest.raises(ValueError, match="Ordinal"):
        ord2hvy(-1)


def test_ord2hvy_too_high():
    with pytest.raises(ValueError, match="Ordinal"):
        ord2hvy(2900500)


def test_ord2hvy_322306():
    assert ord2hvy(322306) == (8765, 4, 29)


def test_ord2hvy_322307():
    assert ord2hvy(322307) == (8765, 5, 1)


def test_ord2hvy_322480():
    assert ord2hvy(322480) == (8765, 10, 29)


def test_ord2hvy_322481():
    assert ord2hvy(322481) == (8766, 1, 1)


def test_earth_to_dni_no_timezone():
    with pytest.raises(ValueError, match="timezone"):
        earth_to_dni(datetime.now())


def test_earth_to_dni_dniepoch():
    assert earth_to_dni(
        datetime(1991, 4, 21, 16, 54, 0, tzinfo=timezone.utc)
    ) == (9647, 1, 1, 0, 0, 0, 0)


def test_earth_to_dni_2020():
    assert earth_to_dni(
        datetime(2020, 8, 27, 10, 51, 0, tzinfo=timezone.utc)
    ) == (9676, 4, 16, 1, 0, 20, 5)


def test_dni_to_earth_not_tuple():
    with pytest.raises(ValueError, match="timetuple"):
        dni_to_earth([9647, 1, 1, 0, 0, 0, 0])


def test_dni_to_earth_bad_tuple():
    with pytest.raises(ValueError, match="malformed"):
        dni_to_earth((9647, 1, 1))


def test_dni_to_earth_dniepoch():
    assert dni_to_earth(
        (9647, 1, 1, 0, 0, 0, 0)
    ) == datetime(1991, 4, 21, 16, 54, tzinfo=timezone.utc)


def test_dni_to_earth_2020():
    assert dni_to_earth(
        (9676, 4, 16, 1, 0, 20, 5)
    ) == datetime(2020, 8, 27, 10, 50, 59, 668172, tzinfo=timezone.utc)