from datetime import timedelta

import pendulum
import pytest

from pendulum.duration import AbsoluteDuration

from ..conftest import assert_duration


def test_defaults():
    pi = pendulum.duration()
    assert_duration(pi, 0, 0, 0, 0, 0, 0, 0)


def test_years():
    pi = pendulum.duration(years=2)
    assert_duration(pi, years=2, weeks=0)
    assert 730 == pi.days
    assert 63072000 == pi.total_seconds()


def test_months():
    pi = pendulum.duration(months=3)
    assert_duration(pi, months=3, weeks=0)
    assert 90 == pi.days
    assert 7776000 == pi.total_seconds()


def test_weeks():
    pi = pendulum.duration(days=365)
    assert_duration(pi, weeks=52)

    pi = pendulum.duration(days=13)
    assert_duration(pi, weeks=1)


def test_days():
    pi = pendulum.duration(days=6)
    assert_duration(pi, 0, 0, 0, 6, 0, 0, 0)

    pi = pendulum.duration(days=16)
    assert_duration(pi, 0, 0, 2, 2, 0, 0, 0)


def test_hours():
    pi = pendulum.duration(seconds=3600 * 3)
    assert_duration(pi, 0, 0, 0, 0, 3, 0, 0)


def test_minutes():
    pi = pendulum.duration(seconds=60 * 3)
    assert_duration(pi, 0, 0, 0, 0, 0, 3, 0)

    pi = pendulum.duration(seconds=60 * 3 + 12)
    assert_duration(pi, 0, 0, 0, 0, 0, 3, 12)


def test_all():
    pi = pendulum.duration(
        years=2, months=3, days=1177, seconds=7284, microseconds=1000000
    )
    assert_duration(pi, 2, 3, 168, 1, 2, 1, 25)
    assert 1997 == pi.days
    assert 7285 == pi.seconds


def test_absolute_interval():
    pi = AbsoluteDuration(days=-1177, seconds=-7284, microseconds=-1000001)
    assert_duration(pi, 0, 0, 168, 1, 2, 1, 25)
    assert 1 == pi.microseconds
    assert pi.invert


def test_invert():
    pi = pendulum.duration(days=1177, seconds=7284, microseconds=1000000)
    assert not pi.invert

    pi = pendulum.duration(days=-1177, seconds=-7284, microseconds=-1000000)
    assert pi.invert


def test_as_timedelta():
    pi = pendulum.duration(seconds=3456.123456)
    assert_duration(pi, 0, 0, 0, 0, 0, 57, 36, 123456)
    delta = pi.as_timedelta()
    assert isinstance(delta, timedelta)
    assert 3456.123456 == delta.total_seconds()
    assert 3456 == delta.seconds


def test_float_years_and_months():
    with pytest.raises(ValueError):
        pendulum.duration(years=1.5)

    with pytest.raises(ValueError):
        pendulum.duration(months=1.5)