from pathlib import Path

import pytest

from subliminal_patch import core


def test_scan_video_movie(tmpdir):
    video_path = Path(tmpdir, "Taxi Driver 1976 Bluray 720p x264.mkv")
    video_path.touch()

    result = core.scan_video(str(video_path))
    assert isinstance(result, core.Movie)


def test_scan_video_episode(tmpdir):
    video_path = Path(tmpdir, "The Wire S01E01 Bluray 720p x264.mkv")
    video_path.touch()

    result = core.scan_video(str(video_path))
    assert isinstance(result, core.Episode)


@pytest.fixture
def pool_instance():
    yield core.SZProviderPool({"subdivx"}, {})


def test_pool_update_w_nothing(pool_instance):
    pool_instance.update({}, {}, [], {})
    assert pool_instance.providers == set()
    assert pool_instance.discarded_providers == set()


def test_pool_update_w_multiple_providers(pool_instance):
    assert pool_instance.providers == {"subdivx"}
    pool_instance.update({"subdivx", "subf2m"}, {}, [], {})
    assert pool_instance.providers == {"subdivx", "subf2m"}


def test_pool_update_discarded_providers(pool_instance):
    assert pool_instance.providers == {"subdivx"}

    # Provider was discarded internally
    pool_instance.discarded_providers = {"subdivx"}

    assert pool_instance.discarded_providers == {"subdivx"}

    # Provider is set to be used again
    pool_instance.update({"subdivx", "subf2m"}, {}, [], {})

    assert pool_instance.providers == {"subf2m", "subdivx"}

    # Provider should disappear from discarded providers
    assert pool_instance.discarded_providers == set()


def test_pool_update_discarded_providers_2(pool_instance):
    assert pool_instance.providers == {"subdivx"}

    # Provider was discarded internally
    pool_instance.discarded_providers = {"subdivx"}

    assert pool_instance.discarded_providers == {"subdivx"}

    # Provider is not set to be used again
    pool_instance.update({"subf2m"}, {}, [], {})

    assert pool_instance.providers == {"subf2m"}

    # Provider should not disappear from discarded providers
    assert pool_instance.discarded_providers == {"subdivx"}


def test_language_equals_init():
    assert core._LanguageEquals([(core.Language("spa"), core.Language("spa", "MX"))])


def test_language_equals_init_invalid():
    with pytest.raises(ValueError):
        assert core._LanguageEquals([(core.Language("spa", "MX"),)])


def test_language_equals_init_empty_list_gracefully():
    assert core._LanguageEquals([]) == []


@pytest.mark.parametrize(
    "langs",
    [
        [(core.Language("spa"), core.Language("spa", "MX"))],
        [(core.Language("por"), core.Language("por", "BR"))],
        [(core.Language("zho"), core.Language("zho", "TW"))],
    ],
)
def test_language_equals_check_set(langs):
    equals = core._LanguageEquals(langs)
    lang_set = {langs[0]}
    assert equals.check_set(lang_set) == set(langs)


def test_language_equals_check_set_do_nothing():
    equals = core._LanguageEquals([(core.Language("eng"), core.Language("spa"))])
    lang_set = {core.Language("spa")}
    assert equals.check_set(lang_set) == {core.Language("spa")}


def test_language_equals_check_set_do_nothing_w_forced():
    equals = core._LanguageEquals(
        [(core.Language("spa", forced=True), core.Language("spa", "MX"))]
    )
    lang_set = {core.Language("spa")}
    assert equals.check_set(lang_set) == {core.Language("spa")}


@pytest.fixture
def language_equals_pool_intance():
    equals = [(core.Language("spa"), core.Language("spa", "MX"))]
    yield core.SZProviderPool({"subdivx"}, language_equals=equals)


def test_language_equals_pool_intance_list_subtitles(
    language_equals_pool_intance, movies
):
    subs = language_equals_pool_intance.list_subtitles(
        movies["dune"], {core.Language("spa")}
    )
    assert subs
    assert all(sub.language == core.Language("spa", "MX") for sub in subs)


def test_language_equals_pool_intance_list_subtitles_reversed(movies):
    equals = [(core.Language("spa", "MX"), core.Language("spa"))]
    language_equals_pool_intance = core.SZProviderPool(
        {"subdivx"}, language_equals=equals
    )
    subs = language_equals_pool_intance.list_subtitles(
        movies["dune"], {core.Language("spa")}
    )
    assert subs
    assert all(sub.language == core.Language("spa") for sub in subs)


def test_language_equals_pool_intance_list_subtitles_empty_lang_equals(movies):
    language_equals_pool_intance = core.SZProviderPool(
        {"subdivx"}, language_equals=None
    )
    subs = language_equals_pool_intance.list_subtitles(
        movies["dune"], {core.Language("spa")}
    )
    assert subs
    assert not all(sub.language == core.Language("spa", "MX") for sub in subs)


def test_language_equals_pool_intance_list_subtitles_return_nothing(movies):
    equals = [
        (core.Language("spa", "MX"), core.Language("eng")),
        (core.Language("spa"), core.Language("eng")),
    ]
    language_equals_pool_intance = core.SZProviderPool(
        {"subdivx"}, language_equals=equals
    )
    subs = language_equals_pool_intance.list_subtitles(
        movies["dune"], {core.Language("spa")}
    )
    assert not language_equals_pool_intance.download_best_subtitles(
        subs, movies["dune"], {core.Language("spa")}
    )