import pytest
import datetime
import os
import uuid

from django.core.management import call_command
from django.core.management.base import CommandError

from funkwhale_api.providers.audiofile import tasks
from funkwhale_api.music import tasks as music_tasks

DATA_DIR = os.path.join(
    os.path.dirname(os.path.abspath(__file__)),
    'files'
)


def test_can_create_track_from_file_metadata_no_mbid(db, mocker):
    metadata = {
        'artist': ['Test artist'],
        'album': ['Test album'],
        'title': ['Test track'],
        'TRACKNUMBER': ['4'],
        'date': ['2012-08-15'],
    }
    m1 = mocker.patch('mutagen.File', return_value=metadata)
    m2 = mocker.patch(
        'funkwhale_api.music.metadata.Metadata.get_file_type',
        return_value='OggVorbis',
    )
    track = tasks.import_track_data_from_path(
        os.path.join(DATA_DIR, 'dummy_file.ogg'))

    assert track.title == metadata['title'][0]
    assert track.mbid is None
    assert track.position == 4
    assert track.album.title == metadata['album'][0]
    assert track.album.mbid is None
    assert track.album.release_date == datetime.date(2012, 8, 15)
    assert track.artist.name == metadata['artist'][0]
    assert track.artist.mbid is None


def test_can_create_track_from_file_metadata_mbid(factories, mocker):
    album = factories['music.Album']()
    mocker.patch(
        'funkwhale_api.music.models.Album.get_or_create_from_api',
        return_value=(album, True),
    )

    album_data = {
        'release': {
            'id': album.mbid,
            'medium-list': [
                {
                    'track-list': [
                        {
                            'id': '03baca8b-855a-3c05-8f3d-d3235287d84d',
                            'position': '4',
                            'number': '4',
                            'recording': {
                                'id': '2109e376-132b-40ad-b993-2bb6812e19d4',
                                'title': 'Teen Age Riot',
                            },
                        }
                    ],
                    'track-count': 1
                }
            ],
        }
    }
    mocker.patch(
        'funkwhale_api.musicbrainz.api.releases.get',
        return_value=album_data)
    track_data = album_data['release']['medium-list'][0]['track-list'][0]
    metadata = {
        'musicbrainz_albumid': [album.mbid],
        'musicbrainz_trackid': [track_data['recording']['id']],
    }
    m1 = mocker.patch('mutagen.File', return_value=metadata)
    m2 = mocker.patch(
        'funkwhale_api.music.metadata.Metadata.get_file_type',
        return_value='OggVorbis',
    )
    track = tasks.import_track_data_from_path(
        os.path.join(DATA_DIR, 'dummy_file.ogg'))

    assert track.title == track_data['recording']['title']
    assert track.mbid == track_data['recording']['id']
    assert track.position == 4
    assert track.album == album
    assert track.artist == album.artist


def test_management_command_requires_a_valid_username(factories, mocker):
    path = os.path.join(DATA_DIR, 'dummy_file.ogg')
    user = factories['users.User'](username='me')
    mocker.patch(
        'funkwhale_api.providers.audiofile.management.commands.import_files.Command.do_import',  # noqa
        return_value=(mocker.MagicMock(), []))
    with pytest.raises(CommandError):
        call_command('import_files', path, username='not_me', interactive=False)
    call_command('import_files', path, username='me', interactive=False)


def test_in_place_import_only_from_music_dir(factories, settings):
    user = factories['users.User'](username='me')
    settings.MUSIC_DIRECTORY_PATH = '/nope'
    path = os.path.join(DATA_DIR, 'dummy_file.ogg')
    with pytest.raises(CommandError):
        call_command(
            'import_files',
            path,
            in_place=True,
            username='me',
            interactive=False
        )


def test_import_files_creates_a_batch_and_job(factories, mocker):
    m = mocker.patch('funkwhale_api.music.tasks.import_job_run')
    user = factories['users.User'](username='me')
    path = os.path.join(DATA_DIR, 'dummy_file.ogg')
    call_command(
        'import_files',
        path,
        username='me',
        async=False,
        interactive=False)

    batch = user.imports.latest('id')
    assert batch.source == 'shell'
    assert batch.jobs.count() == 1

    job = batch.jobs.first()

    assert job.status == 'pending'
    with open(path, 'rb') as f:
        assert job.audio_file.read() == f.read()

    assert job.source == 'file://' + path
    m.assert_called_once_with(
        import_job_id=job.pk,
        use_acoustid=False)


def test_import_files_skip_if_path_already_imported(factories, mocker):
    user = factories['users.User'](username='me')
    path = os.path.join(DATA_DIR, 'dummy_file.ogg')
    existing = factories['music.TrackFile'](
        source='file://{}'.format(path))

    call_command(
        'import_files',
        path,
        username='me',
        async=False,
        interactive=False)
    assert user.imports.count() == 0


def test_import_files_works_with_utf8_file_name(factories, mocker):
    m = mocker.patch('funkwhale_api.music.tasks.import_job_run')
    user = factories['users.User'](username='me')
    path = os.path.join(DATA_DIR, 'utf8-éà◌.ogg')
    call_command(
        'import_files',
        path,
        username='me',
        async=False,
        interactive=False)
    batch = user.imports.latest('id')
    job = batch.jobs.first()
    m.assert_called_once_with(
        import_job_id=job.pk,
        use_acoustid=False)


def test_import_files_in_place(factories, mocker, settings):
    settings.MUSIC_DIRECTORY_PATH = DATA_DIR
    m = mocker.patch('funkwhale_api.music.tasks.import_job_run')
    user = factories['users.User'](username='me')
    path = os.path.join(DATA_DIR, 'utf8-éà◌.ogg')
    call_command(
        'import_files',
        path,
        username='me',
        async=False,
        in_place=True,
        interactive=False)
    batch = user.imports.latest('id')
    job = batch.jobs.first()
    assert bool(job.audio_file) is False
    m.assert_called_once_with(
        import_job_id=job.pk,
        use_acoustid=False)


def test_storage_rename_utf_8_files(factories):
    tf = factories['music.TrackFile'](audio_file__filename='été.ogg')
    assert tf.audio_file.name.endswith('ete.ogg')