import re

from .common import InfoExtractor
from ..utils import (
    extract_attributes,
    ExtractorError,
    get_element_by_class,
)


class SteamIE(InfoExtractor):
    _VALID_URL = r"""(?x)
        https?://(?:store\.steampowered|steamcommunity)\.com/
            (?:agecheck/)?
            (?P<urltype>video|app)/ #If the page is only for videos or for a game
            (?P<gameID>\d+)/?
            (?P<videoID>\d*)(?P<extra>\??) # For urltype == video we sometimes get the videoID
        |
        https?://(?:www\.)?steamcommunity\.com/sharedfiles/filedetails/\?id=(?P<fileID>[0-9]+)
    """
    _VIDEO_PAGE_TEMPLATE = 'http://store.steampowered.com/video/%s/'
    _AGECHECK_TEMPLATE = 'http://store.steampowered.com/agecheck/video/%s/?snr=1_agecheck_agecheck__age-gate&ageDay=1&ageMonth=January&ageYear=1970'
    _TESTS = [{
        'url': 'http://store.steampowered.com/video/105600/',
        'playlist': [
            {
                'md5': '695242613303ffa2a4c44c9374ddc067',
                'info_dict': {
                    'id': '256785003',
                    'ext': 'mp4',
                    'title': 'Terraria video 256785003',
                    'thumbnail': r're:^https://cdn\.[^\.]+\.steamstatic\.com',
                    'n_entries': 2,
                }
            },
            {
                'md5': '6a294ee0c4b1f47f5bb76a65e31e3592',
                'info_dict': {
                    'id': '2040428',
                    'ext': 'mp4',
                    'title': 'Terraria video 2040428',
                    'playlist_index': 2,
                    'thumbnail': r're:^https://cdn\.[^\.]+\.steamstatic\.com',
                    'n_entries': 2,
                }
            }
        ],
        'info_dict': {
            'id': '105600',
            'title': 'Terraria',
        },
        'params': {
            'playlistend': 2,
        }
    }, {
        'url': 'https://store.steampowered.com/app/271590/Grand_Theft_Auto_V/',
        'info_dict': {
            'id': '256757115',
            'title': 'Grand Theft Auto V video 256757115',
            'ext': 'mp4',
            'thumbnail': r're:^https://cdn\.[^\.]+\.steamstatic\.com',
            'n_entries': 20,
        },
    }]

    def _real_extract(self, url):
        m = self._match_valid_url(url)
        fileID = m.group('fileID')
        if fileID:
            video_url = url
            playlist_id = fileID
        else:
            gameID = m.group('gameID')
            playlist_id = gameID
            video_url = self._VIDEO_PAGE_TEMPLATE % playlist_id

        self._set_cookie('steampowered.com', 'wants_mature_content', '1')
        self._set_cookie('steampowered.com', 'birthtime', '944006401')
        self._set_cookie('steampowered.com', 'lastagecheckage', '1-0-2000')

        webpage = self._download_webpage(video_url, playlist_id)

        if re.search('<div[^>]+>Please enter your birth date to continue:</div>', webpage) is not None:
            video_url = self._AGECHECK_TEMPLATE % playlist_id
            self.report_age_confirmation()
            webpage = self._download_webpage(video_url, playlist_id)

        videos = re.findall(r'(<div[^>]+id=[\'"]highlight_movie_(\d+)[\'"][^>]+>)', webpage)
        entries = []
        playlist_title = get_element_by_class('apphub_AppName', webpage)
        for movie, movie_id in videos:
            if not movie:
                continue
            movie = extract_attributes(movie)
            if not movie_id:
                continue
            entry = {
                'id': movie_id,
                'title': f'{playlist_title} video {movie_id}',
            }
            formats = []
            if movie:
                entry['thumbnail'] = movie.get('data-poster')
                for quality in ('', '-hd'):
                    for ext in ('webm', 'mp4'):
                        video_url = movie.get('data-%s%s-source' % (ext, quality))
                        if video_url:
                            formats.append({
                                'format_id': ext + quality,
                                'url': video_url,
                            })
            self._sort_formats(formats)
            entry['formats'] = formats
            entries.append(entry)
        embedded_videos = re.findall(r'(<iframe[^>]+>)', webpage)
        for evideos in embedded_videos:
            evideos = extract_attributes(evideos).get('src')
            video_id = self._search_regex(r'youtube\.com/embed/([0-9A-Za-z_-]{11})', evideos, 'youtube_video_id', default=None)
            if video_id:
                entries.append({
                    '_type': 'url_transparent',
                    'id': video_id,
                    'url': video_id,
                    'ie_key': 'Youtube',
                })
        if not entries:
            raise ExtractorError('Could not find any videos')

        return self.playlist_result(entries, playlist_id, playlist_title)