import re

from .common import InfoExtractor
from ..utils import (
    ExtractorError,
    decode_packed_codes,
    determine_ext,
    int_or_none,
    js_to_json,
    urlencode_postdata,
)


# based on openload_decode from 2bfeee69b976fe049761dd3012e30b637ee05a58
def aa_decode(aa_code):
    symbol_table = [
        ('7', '((ﾟｰﾟ) + (o^_^o))'),
        ('6', '((o^_^o) +(o^_^o))'),
        ('5', '((ﾟｰﾟ) + (ﾟΘﾟ))'),
        ('2', '((o^_^o) - (ﾟΘﾟ))'),
        ('4', '(ﾟｰﾟ)'),
        ('3', '(o^_^o)'),
        ('1', '(ﾟΘﾟ)'),
        ('0', '(c^_^o)'),
    ]
    delim = '(ﾟДﾟ)[ﾟεﾟ]+'
    ret = ''
    for aa_char in aa_code.split(delim):
        for val, pat in symbol_table:
            aa_char = aa_char.replace(pat, val)
        aa_char = aa_char.replace('+ ', '')
        m = re.match(r'^\d+', aa_char)
        if m:
            ret += chr(int(m.group(0), 8))
        else:
            m = re.match(r'^u([\da-f]+)', aa_char)
            if m:
                ret += chr(int(m.group(1), 16))
    return ret


class XFileShareIE(InfoExtractor):
    _SITES = (
        (r'aparat\.cam', 'Aparat'),
        (r'clipwatching\.com', 'ClipWatching'),
        (r'gounlimited\.to', 'GoUnlimited'),
        (r'govid\.me', 'GoVid'),
        (r'holavid\.com', 'HolaVid'),
        (r'streamty\.com', 'Streamty'),
        (r'thevideobee\.to', 'TheVideoBee'),
        (r'uqload\.com', 'Uqload'),
        (r'vidbom\.com', 'VidBom'),
        (r'vidlo\.us', 'vidlo'),
        (r'vidlocker\.xyz', 'VidLocker'),
        (r'vidshare\.tv', 'VidShare'),
        (r'vup\.to', 'VUp'),
        (r'wolfstream\.tv', 'WolfStream'),
        (r'xvideosharing\.com', 'XVideoSharing'),
    )

    IE_DESC = 'XFileShare based sites: %s' % ', '.join(list(zip(*_SITES))[1])
    _VALID_URL = (r'https?://(?:www\.)?(?P<host>%s)/(?:embed-)?(?P<id>[0-9a-zA-Z]+)'
                  % '|'.join(site for site in list(zip(*_SITES))[0]))
    _EMBED_REGEX = [r'<iframe\b[^>]+\bsrc=(["\'])(?P<url>(?:https?:)?//(?:%s)/embed-[0-9a-zA-Z]+.*?)\1' % '|'.join(site for site in list(zip(*_SITES))[0])]

    _FILE_NOT_FOUND_REGEXES = (
        r'>(?:404 - )?File Not Found<',
        r'>The file was removed by administrator<',
    )

    _TESTS = [{
        'url': 'https://uqload.com/dltx1wztngdz',
        'md5': '3cfbb65e4c90e93d7b37bcb65a595557',
        'info_dict': {
            'id': 'dltx1wztngdz',
            'ext': 'mp4',
            'title': 'Rick Astley Never Gonna Give You mp4',
            'thumbnail': r're:https://.*\.jpg'
        }
    }, {
        'url': 'http://xvideosharing.com/fq65f94nd2ve',
        'md5': '4181f63957e8fe90ac836fa58dc3c8a6',
        'info_dict': {
            'id': 'fq65f94nd2ve',
            'ext': 'mp4',
            'title': 'sample',
            'thumbnail': r're:http://.*\.jpg',
        },
    }, {
        'url': 'https://aparat.cam/n4d6dh0wvlpr',
        'only_matching': True,
    }, {
        'url': 'https://wolfstream.tv/nthme29v9u2x',
        'only_matching': True,
    }]

    def _real_extract(self, url):
        host, video_id = self._match_valid_url(url).groups()

        url = 'https://%s/' % host + ('embed-%s.html' % video_id if host in ('govid.me', 'vidlo.us') else video_id)
        webpage = self._download_webpage(url, video_id)

        if any(re.search(p, webpage) for p in self._FILE_NOT_FOUND_REGEXES):
            raise ExtractorError('Video %s does not exist' % video_id, expected=True)

        fields = self._hidden_inputs(webpage)

        if fields.get('op') == 'download1':
            countdown = int_or_none(self._search_regex(
                r'<span id="countdown_str">(?:[Ww]ait)?\s*<span id="cxc">(\d+)</span>\s*(?:seconds?)?</span>',
                webpage, 'countdown', default=None))
            if countdown:
                self._sleep(countdown, video_id)

            webpage = self._download_webpage(
                url, video_id, 'Downloading video page',
                data=urlencode_postdata(fields), headers={
                    'Referer': url,
                    'Content-type': 'application/x-www-form-urlencoded',
                })

        title = (self._search_regex(
            (r'style="z-index: [0-9]+;">([^<]+)</span>',
             r'<td nowrap>([^<]+)</td>',
             r'h4-fine[^>]*>([^<]+)<',
             r'>Watch (.+)[ <]',
             r'<h2 class="video-page-head">([^<]+)</h2>',
             r'<h2 style="[^"]*color:#403f3d[^"]*"[^>]*>([^<]+)<',  # streamin.to
             r'title\s*:\s*"([^"]+)"'),  # govid.me
            webpage, 'title', default=None) or self._og_search_title(
            webpage, default=None) or video_id).strip()

        for regex, func in (
                (r'(eval\(function\(p,a,c,k,e,d\){.+)', decode_packed_codes),
                (r'(ﾟ.+)', aa_decode)):
            obf_code = self._search_regex(regex, webpage, 'obfuscated code', default=None)
            if obf_code:
                webpage = webpage.replace(obf_code, func(obf_code))

        formats = []

        jwplayer_data = self._search_regex(
            [
                r'jwplayer\("[^"]+"\)\.load\(\[({.+?})\]\);',
                r'jwplayer\("[^"]+"\)\.setup\(({.+?})\);',
            ], webpage,
            'jwplayer data', default=None)
        if jwplayer_data:
            jwplayer_data = self._parse_json(
                jwplayer_data.replace(r"\'", "'"), video_id, js_to_json)
            if jwplayer_data:
                formats = self._parse_jwplayer_data(
                    jwplayer_data, video_id, False,
                    m3u8_id='hls', mpd_id='dash')['formats']

        if not formats:
            urls = []
            for regex in (
                    r'(?:file|src)\s*:\s*(["\'])(?P<url>http(?:(?!\1).)+\.(?:m3u8|mp4|flv)(?:(?!\1).)*)\1',
                    r'file_link\s*=\s*(["\'])(?P<url>http(?:(?!\1).)+)\1',
                    r'addVariable\((\\?["\'])file\1\s*,\s*(\\?["\'])(?P<url>http(?:(?!\2).)+)\2\)',
                    r'<embed[^>]+src=(["\'])(?P<url>http(?:(?!\1).)+\.(?:m3u8|mp4|flv)(?:(?!\1).)*)\1'):
                for mobj in re.finditer(regex, webpage):
                    video_url = mobj.group('url')
                    if video_url not in urls:
                        urls.append(video_url)

            sources = self._search_regex(
                r'sources\s*:\s*(\[(?!{)[^\]]+\])', webpage, 'sources', default=None)
            if sources:
                urls.extend(self._parse_json(sources, video_id))

            formats = []
            for video_url in urls:
                if determine_ext(video_url) == 'm3u8':
                    formats.extend(self._extract_m3u8_formats(
                        video_url, video_id, 'mp4',
                        entry_protocol='m3u8_native', m3u8_id='hls',
                        fatal=False))
                else:
                    formats.append({
                        'url': video_url,
                        'format_id': 'sd',
                    })

        thumbnail = self._search_regex(
            [
                r'<video[^>]+poster="([^"]+)"',
                r'(?:image|poster)\s*:\s*["\'](http[^"\']+)["\'],',
            ], webpage, 'thumbnail', default=None)

        return {
            'id': video_id,
            'title': title,
            'thumbnail': thumbnail,
            'formats': formats,
            'http_headers': {'Referer': url}
        }
