# coding: utf-8
from __future__ import unicode_literals

from .common import InfoExtractor
from ..utils import (
    compat_str,
    ExtractorError,
    int_or_none,
    str_or_none,
    try_get,
    url_or_none,
)


class TikTokBaseIE(InfoExtractor):
    def _extract_aweme(self, data):
        video = data['video']
        description = str_or_none(try_get(data, lambda x: x['desc']))
        width = int_or_none(try_get(data, lambda x: video['width']))
        height = int_or_none(try_get(data, lambda x: video['height']))

        format_urls = set()
        formats = []
        for format_id in (
                'play_addr_lowbr', 'play_addr', 'play_addr_h264',
                'download_addr'):
            for format in try_get(
                    video, lambda x: x[format_id]['url_list'], list) or []:
                format_url = url_or_none(format)
                if not format_url:
                    continue
                if format_url in format_urls:
                    continue
                format_urls.add(format_url)
                formats.append({
                    'url': format_url,
                    'ext': 'mp4',
                    'height': height,
                    'width': width,
                })
        self._sort_formats(formats)

        thumbnail = url_or_none(try_get(
            video, lambda x: x['cover']['url_list'][0], compat_str))
        uploader = try_get(data, lambda x: x['author']['nickname'], compat_str)
        timestamp = int_or_none(data.get('create_time'))
        comment_count = int_or_none(data.get('comment_count')) or int_or_none(
            try_get(data, lambda x: x['statistics']['comment_count']))
        repost_count = int_or_none(try_get(
            data, lambda x: x['statistics']['share_count']))

        aweme_id = data['aweme_id']

        return {
            'id': aweme_id,
            'title': uploader or aweme_id,
            'description': description,
            'thumbnail': thumbnail,
            'uploader': uploader,
            'timestamp': timestamp,
            'comment_count': comment_count,
            'repost_count': repost_count,
            'formats': formats,
        }


class TikTokIE(TikTokBaseIE):
    _VALID_URL = r'''(?x)
                        https?://
                            (?:
                                (?:m\.)?tiktok\.com/v|
                                (?:www\.)?tiktok\.com/share/video
                            )
                            /(?P<id>\d+)
                    '''
    _TESTS = [{
        'url': 'https://m.tiktok.com/v/6606727368545406213.html',
        'md5': 'd584b572e92fcd48888051f238022420',
        'info_dict': {
            'id': '6606727368545406213',
            'ext': 'mp4',
            'title': 'Zureeal',
            'description': '#bowsette#mario#cosplay#uk#lgbt#gaming#asian#bowsettecosplay',
            'thumbnail': r're:^https?://.*~noop.image',
            'uploader': 'Zureeal',
            'timestamp': 1538248586,
            'upload_date': '20180929',
            'comment_count': int,
            'repost_count': int,
        }
    }, {
        'url': 'https://www.tiktok.com/share/video/6606727368545406213',
        'only_matching': True,
    }]

    def _real_extract(self, url):
        video_id = self._match_id(url)
        webpage = self._download_webpage(
            'https://m.tiktok.com/v/%s.html' % video_id, video_id)
        data = self._parse_json(self._search_regex(
            r'\bdata\s*=\s*({.+?})\s*;', webpage, 'data'), video_id)
        return self._extract_aweme(data)


class TikTokUserIE(TikTokBaseIE):
    _VALID_URL = r'''(?x)
                        https?://
                            (?:
                                (?:m\.)?tiktok\.com/h5/share/usr|
                                (?:www\.)?tiktok\.com/share/user
                            )
                            /(?P<id>\d+)
                    '''
    _TESTS = [{
        'url': 'https://m.tiktok.com/h5/share/usr/188294915489964032.html',
        'info_dict': {
            'id': '188294915489964032',
        },
        'playlist_mincount': 24,
    }, {
        'url': 'https://www.tiktok.com/share/user/188294915489964032',
        'only_matching': True,
    }]

    def _real_extract(self, url):
        user_id = self._match_id(url)
        data = self._download_json(
            'https://m.tiktok.com/h5/share/usr/list/%s/' % user_id, user_id,
            query={'_signature': '_'})
        entries = []
        for aweme in data['aweme_list']:
            try:
                entry = self._extract_aweme(aweme)
            except ExtractorError:
                continue
            entry['extractor_key'] = TikTokIE.ie_key()
            entries.append(entry)
        return self.playlist_result(entries, user_id)


class TikTokWatermarklessIE(InfoExtractor):
    _VALID_URL = r'https?://(?:www\.)?tiktok\.com/@.+/video/(?P<id>[0-9]+)+'
    _TESTS = [{
        'url': 'https://www.tiktok.com/@zoey.aune/video/6813765043914624262?lang=en',
        'info_dict': {
            'id': 'v09044400000bq7lmc8biaper9qalb50',
        },
    }]

    def _real_extract(self, url):
        video_id = self._match_id(url)
        webpage = self._download_webpage('https://m.tiktok.com/v/%s.html' % video_id, video_id)

        next_data_json = self._html_search_regex([r'<script\s+id="__NEXT_DATA__"[^>]*>(.*?)</script>'],
                                                 webpage, 'next_data')
        watermarkedURL = self._parse_json(next_data_json, video_id).get('props', {}).get('pageProps', {}).get('videoData', {}).get('itemInfos', {}).get('video', {}).get('urls', {})[0]
        # The vid is embedded in the first video file, so we need to download it (unfortunate!)
        watermarkedVideoResponse = self._download_webpage(watermarkedURL, video_id)
        idpos = watermarkedVideoResponse.index("vid:")
        vidid = watermarkedVideoResponse[idpos + 4:idpos + 36]
        watermarklessURL = "https://api2-16-h2.musical.ly/aweme/v1/play/?video_id={}&vr_type=0&is_play_url=1&source=PackSourceEnum_PUBLISH&media_type=4".format(vidid)

        return {
            'id': vidid,
            'title': self._og_search_title(webpage),
            'description': self._og_search_description(webpage),
            'url': watermarklessURL,
            'ext': 'mp4',
            'http_headers': {
                'User-Agent': 'okhttp',
            }
        }