import os

import mutagen
import pytest
from symuid._tag_interface import Ogg

# pylint: disable=protected-access


@pytest.mark.parametrize('track_name', ['ogg-vorbis-empty.ogg'])
def test_get_track_path(tracks_dir_path, track_name):
    track_path = os.path.join(tracks_dir_path, track_name)
    ogg_iface = Ogg(mutagen.File(track_path))
    assert track_path == ogg_iface.track_path


@pytest.mark.parametrize(('track_name', 'tag_label', 'expected_text'), [
    ('ogg-vorbis-empty.ogg', 'artist', None),
    ('ogg-vorbis-typical.ogg', 'artist', 'libvorbis encoder'),
    ('ogg-vorbis-typical.ogg', 'comment', 'some further information'),
    ('ogg-vorbis-typical.ogg', 'com', None),
    ('ogg-vorbis-typical.ogg', 'symuid:uuid',
     '4cfe3a2a-6354-40f5-bd9b-5ccf1c6f48ba'),
])
def test__get_single_text(tracks_dir_path, track_name, tag_label, expected_text):
    ogg_iface = Ogg(mutagen.File(os.path.join(tracks_dir_path, track_name)))
    assert expected_text == ogg_iface._get_single_text(tag_label)


@pytest.mark.parametrize(('track_name', 'expected_comment'), [
    ('ogg-vorbis-empty.ogg', None),
    ('ogg-vorbis-typical.ogg', 'some further information'),
])
def test_get_comment(tracks_dir_path, track_name, expected_comment):
    iface = Ogg(mutagen.File(os.path.join(tracks_dir_path, track_name)))
    assert expected_comment == iface.get_comment()


def test_set_comment(empty_ogg_vorbis_path):
    iface = Ogg(mutagen.File(empty_ogg_vorbis_path))
    assert iface.get_comment() is None
    iface.set_comment('latin chars')
    assert iface.get_comment() == 'latin chars'
    iface.set_comment('你好!')
    assert iface.get_comment() == '你好!'
    iface.save()
    iface_reread = Ogg(mutagen.File(empty_ogg_vorbis_path))
    assert iface_reread.get_comment() == '你好!'
    tags = mutagen.File(iface.track_path).tags
    assert len(tags) == 1
    assert tags.items()[0] == ('comment', ['你好!'])


@pytest.mark.parametrize(('track_name', 'expected_uuid'), [
    ('ogg-vorbis-empty.ogg', None),
    ('ogg-vorbis-typical.ogg', b'L\xfe:*cT@\xf5\xbd\x9b\\\xcf\x1coH\xba'),
])
def test_get_track_uuid(tracks_dir_path, track_name, expected_uuid):
    iface = Ogg(mutagen.File(os.path.join(tracks_dir_path, track_name)))
    assert expected_uuid == iface.get_track_uuid()


def test_set_track_uuid(empty_ogg_vorbis_path):
    iface = Ogg(mutagen.File(empty_ogg_vorbis_path))
    assert iface.get_track_uuid() is None
    uuid_a = b's\x84@\xd8\xfe\xe8K\x80\xa7J\x13\x89\\%\xech'
    iface.set_track_uuid(uuid_a)
    assert iface.get_track_uuid() == uuid_a
    uuid_b = b'\xfaQ\x9a\x0eo\xa3Cp\xa1\x98c\x01\x93\xfb\xf7\xd0'
    iface.set_track_uuid(uuid_b)
    assert iface.get_track_uuid() == uuid_b
    iface.save()
    iface_reread = Ogg(mutagen.File(empty_ogg_vorbis_path))
    assert iface_reread.get_track_uuid() == uuid_b
    tags = mutagen.File(iface.track_path).tags
    assert len(tags) == 1
    assert tags.items()[0] == (
        'symuid:uuid', ['fa519a0e-6fa3-4370-a198-630193fbf7d0'])


@pytest.mark.parametrize(('track_name', 'tag_label', 'expected_int'), [
    ('ogg-vorbis-empty.ogg', 'tracknumber', None),
    ('ogg-vorbis-typical.ogg', 'tracknumber', 3),
    ('ogg-vorbis-typical.ogg', 'tracknumberr', None),
    ('ogg-vorbis-typical.ogg', 'symuid:pcnt:player:library:1572098177', 22),
])
def test_get_free_int(tracks_dir_path, track_name, tag_label, expected_int):
    ogg_iface = Ogg(mutagen.File(os.path.join(tracks_dir_path, track_name)))
    assert expected_int == ogg_iface.get_free_int(tag_label)


def test_get_free_ints(tracks_dir_path):
    iface = Ogg(mutagen.File(os.path.join(
        tracks_dir_path, 'ogg-vorbis-typical.ogg')))
    assert not list(iface.get_free_ints('symuid:none'))
    assert list(iface.get_free_ints('tracknumber')) == [('tracknumber', 3)]
    assert not list(iface.get_free_ints('tracknum'))
    pcnt_tags = {('symuid:pcnt:player:library:1572098158', 21),
                 ('symuid:pcnt:player:library:1572098177', 22)}
    assert set(iface.get_free_ints('symuid:pcnt:player:library')) == pcnt_tags
    assert set(iface.get_free_ints('symuid:pcnt:player')) == pcnt_tags
    assert set(iface.get_free_ints('symuid:pcnt')) == pcnt_tags
    assert set(iface.get_free_ints('symuid:pcnt:player:library:1572098158')) \
        == {('symuid:pcnt:player:library:1572098158', 21)}


def test_set_free_int(empty_ogg_vorbis_path):
    iface = Ogg(mutagen.File(empty_ogg_vorbis_path))
    assert iface.get_free_int('tracknumber') is None
    iface.set_free_int('tracknumber', 9)
    assert iface.get_free_int('tracknumber') == 9
    iface.set_free_int('tracknumber', 5)
    assert iface.get_free_int('tracknumber') == 5
    iface.save()
    iface_reread = Ogg(mutagen.File(empty_ogg_vorbis_path))
    assert iface_reread.get_free_int('tracknumber') == 5
    tags = mutagen.File(iface.track_path).tags
    assert len(tags) == 1
    assert tags.items()[0] == ('tracknumber', ['5'])