import os

import pytest

from src.downloader import SourceType, Downloader

reddit_env = pytest.mark.skipif(
    os.environ.get('CLIENT_ID', '') == '' or
    os.environ.get('CLIENT_SECRET', '') == '' or
    os.environ.get('USERNAME', '') == '' or
    os.environ.get('PASSWORD', '') == ''
    , reason="Require reddit env variables to be set."
)


@pytest.fixture
def mock_ydl_download(mocker):
    # this function is responsible for downloading the file
    return mocker.patch('downloader.youtube_dl.YoutubeDL.process_info')


@pytest.mark.parametrize('url,source_type', [
    ("https://i.redd.it/pjj1ll1b2rr41.jpg", SourceType.IREDDIT),
    ("https://gfycat.com/presentdangerousdromedary", SourceType.GFYCAT),
    ("https://i.imgur.com/fXLMjfp.jpg", SourceType.IMAGURJPG),
    ("https://redgifs.com/watch/ripesnivelingfiddlercrab", SourceType.REDGIFS),
    ("https://www.youtube.com/watch?v=oLkdqptmfng", SourceType.YOUTUBE),
    ("https://v.redd.it/42j6r7i8z7151", SourceType.VREDDIT),
    ("https://www.reddit.com/gallery/mik7c9", SourceType.GREDDIT),
    ("https://duckduckgo.com", SourceType.UNKNOWN),
])
def test_source_type(url, source_type):
    with Downloader(url, "1-A") as d:
        assert d.source_type == source_type


@pytest.mark.parametrize('url,paths', [
    ("https://gfycat.com/presentdangerousdromedary", ["source_presentdangerousdromedary.mp4"]),
    ("https://redgifs.com/watch/ripesnivelingfiddlercrab", ["source_RipeSnivelingFiddlercrab.mp4", 'source_RipeSnivelingFiddlercrab-mobile.mp4']),
    ("https://www.youtube.com/watch?v=oLkdqptmfng", ["source_oLkdqptmfng.mp4"]),
    ("https://v.redd.it/42j6r7i8z7151", ["source_42j6r7i8z7151.mp4"]),
])
def test_download_youtube_dl(url, paths, mock_ydl_download):
    with Downloader(url, "1-A") as d:
        assert d.downloaded is False
        d.download()
        assert d.downloaded is True
        assert d.paths == paths
        mock_ydl_download.assert_called()


@pytest.mark.parametrize('url,path', [
    ("https://i.redd.it/pjj1ll1b2rr41.jpg", "source_pjj1ll1b2rr41.jpg"),
    ("https://i.imgur.com/fXLMjfp.jpg", "source_fXLMjfp.jpg"),
])
def test_download_raw_data(url, path):
    with Downloader(url, "1-A") as d:
        assert d.downloaded is False
        d.download()
        assert d.paths == [path]
        assert d.downloaded is True


@reddit_env
def test_praw_download():
    client_id = os.environ.get('CLIENT_ID', '')
    client_secret = os.environ.get('CLIENT_SECRET', '')
    username = os.environ.get('USERNAME', '')
    password = os.environ.get('PASSWORD', '')
    files = {'source_hlokpsyhgrq61.jpg', 'source_n31c2y7igrq61.jpg', 'source_7eg0o76igrq61.jpg',
             'source_whl12jbigrq61.jpg', 'source_4uok762igrq61.jpg', 'source_t3pgm64igrq61.jpg',
             'source_ymc4hv9igrq61.jpg'}

    with Downloader("https://www.reddit.com/gallery/mik7c9", "1-A", client_id=client_id, client_secret=client_secret,
                    password=password, user_agent="hcrawler", username=username) as d:
        assert d.downloaded is False
        d.download()
        assert d.downloaded is True
        assert set(d.paths) == files