# coding: utf-8
from __future__ import unicode_literals


from .common import InfoExtractor
from ..utils import (
    ExtractorError,
    float_or_none,
    int_or_none,
    join_nonempty,
    parse_iso8601,
    qualities,
    try_get,
)


class SRGSSRIE(InfoExtractor):
    _VALID_URL = r'''(?x)
                    (?:
                        https?://tp\.srgssr\.ch/p(?:/[^/]+)+\?urn=urn|
                        srgssr
                    ):
                    (?P<bu>
                        srf|rts|rsi|rtr|swi
                    ):(?:[^:]+:)?
                    (?P<type>
                        video|audio
                    ):
                    (?P<id>
                        [0-9a-f\-]{36}|\d+
                    )
                    '''
    _GEO_BYPASS = False
    _GEO_COUNTRIES = ['CH']

    _ERRORS = {
        'AGERATING12': 'To protect children under the age of 12, this video is only available between 8 p.m. and 6 a.m.',
        'AGERATING18': 'To protect children under the age of 18, this video is only available between 11 p.m. and 5 a.m.',
        # 'ENDDATE': 'For legal reasons, this video was only available for a specified period of time.',
        'GEOBLOCK': 'For legal reasons, this video is only available in Switzerland.',
        'LEGAL': 'The video cannot be transmitted for legal reasons.',
        'STARTDATE': 'This video is not yet available. Please try again later.',
    }
    _DEFAULT_LANGUAGE_CODES = {
        'srf': 'de',
        'rts': 'fr',
        'rsi': 'it',
        'rtr': 'rm',
        'swi': 'en',
    }

    def _get_tokenized_src(self, url, video_id, format_id):
        token = self._download_json(
            'http://tp.srgssr.ch/akahd/token?acl=*',
            video_id, 'Downloading %s token' % format_id, fatal=False) or {}
        auth_params = try_get(token, lambda x: x['token']['authparams'])
        if auth_params:
            url += ('?' if '?' not in url else '&') + auth_params
        return url

    def _get_media_data(self, bu, media_type, media_id):
        query = {'onlyChapters': True} if media_type == 'video' else {}
        full_media_data = self._download_json(
            'https://il.srgssr.ch/integrationlayer/2.0/%s/mediaComposition/%s/%s.json'
            % (bu, media_type, media_id),
            media_id, query=query)['chapterList']
        try:
            media_data = next(
                x for x in full_media_data if x.get('id') == media_id)
        except StopIteration:
            raise ExtractorError('No media information found')

        block_reason = media_data.get('blockReason')
        if block_reason and block_reason in self._ERRORS:
            message = self._ERRORS[block_reason]
            if block_reason == 'GEOBLOCK':
                self.raise_geo_restricted(
                    msg=message, countries=self._GEO_COUNTRIES)
            raise ExtractorError(
                '%s said: %s' % (self.IE_NAME, message), expected=True)

        return media_data

    def _real_extract(self, url):
        bu, media_type, media_id = self._match_valid_url(url).groups()
        media_data = self._get_media_data(bu, media_type, media_id)
        title = media_data['title']

        formats = []
        subtitles = {}
        q = qualities(['SD', 'HD'])
        for source in (media_data.get('resourceList') or []):
            format_url = source.get('url')
            if not format_url:
                continue
            protocol = source.get('protocol')
            quality = source.get('quality')
            format_id = join_nonempty(protocol, source.get('encoding'), quality)

            if protocol in ('HDS', 'HLS'):
                if source.get('tokenType') == 'AKAMAI':
                    format_url = self._get_tokenized_src(
                        format_url, media_id, format_id)
                    fmts, subs = self._extract_akamai_formats_and_subtitles(
                        format_url, media_id)
                    formats.extend(fmts)
                    subtitles = self._merge_subtitles(subtitles, subs)
                elif protocol == 'HLS':
                    m3u8_fmts, m3u8_subs = self._extract_m3u8_formats_and_subtitles(
                        format_url, media_id, 'mp4', 'm3u8_native',
                        m3u8_id=format_id, fatal=False)
                    formats.extend(m3u8_fmts)
                    subtitles = self._merge_subtitles(subtitles, m3u8_subs)
            elif protocol in ('HTTP', 'HTTPS'):
                formats.append({
                    'format_id': format_id,
                    'url': format_url,
                    'quality': q(quality),
                })

        # This is needed because for audio medias the podcast url is usually
        # always included, even if is only an audio segment and not the
        # whole episode.
        if int_or_none(media_data.get('position')) == 0:
            for p in ('S', 'H'):
                podcast_url = media_data.get('podcast%sdUrl' % p)
                if not podcast_url:
                    continue
                quality = p + 'D'
                formats.append({
                    'format_id': 'PODCAST-' + quality,
                    'url': podcast_url,
                    'quality': q(quality),
                })
        self._sort_formats(formats)

        if media_type == 'video':
            for sub in (media_data.get('subtitleList') or []):
                sub_url = sub.get('url')
                if not sub_url:
                    continue
                lang = sub.get('locale') or self._DEFAULT_LANGUAGE_CODES[bu]
                subtitles.setdefault(lang, []).append({
                    'url': sub_url,
                })

        return {
            'id': media_id,
            'title': title,
            'description': media_data.get('description'),
            'timestamp': parse_iso8601(media_data.get('date')),
            'thumbnail': media_data.get('imageUrl'),
            'duration': float_or_none(media_data.get('duration'), 1000),
            'subtitles': subtitles,
            'formats': formats,
        }


class SRGSSRPlayIE(InfoExtractor):
    IE_DESC = 'srf.ch, rts.ch, rsi.ch, rtr.ch and swissinfo.ch play sites'
    _VALID_URL = r'''(?x)
                    https?://
                        (?:(?:www|play)\.)?
                        (?P<bu>srf|rts|rsi|rtr|swissinfo)\.ch/play/(?:tv|radio)/
                        (?:
                            [^/]+/(?P<type>video|audio)/[^?]+|
                            popup(?P<type_2>video|audio)player
                        )
                        \?.*?\b(?:id=|urn=urn:[^:]+:video:)(?P<id>[0-9a-f\-]{36}|\d+)
                    '''

    _TESTS = [{
        'url': 'http://www.srf.ch/play/tv/10vor10/video/snowden-beantragt-asyl-in-russland?id=28e1a57d-5b76-4399-8ab3-9097f071e6c5',
        'md5': '6db2226ba97f62ad42ce09783680046c',
        'info_dict': {
            'id': '28e1a57d-5b76-4399-8ab3-9097f071e6c5',
            'ext': 'mp4',
            'upload_date': '20130701',
            'title': 'Snowden beantragt Asyl in Russland',
            'timestamp': 1372708215,
            'duration': 113.827,
            'thumbnail': r're:^https?://.*1383719781\.png$',
        },
        'expected_warnings': ['Unable to download f4m manifest'],
    }, {
        'url': 'http://www.rtr.ch/play/radio/actualitad/audio/saira-tujetsch-tuttina-cuntinuar-cun-sedrun-muster-turissem?id=63cb0778-27f8-49af-9284-8c7a8c6d15fc',
        'info_dict': {
            'id': '63cb0778-27f8-49af-9284-8c7a8c6d15fc',
            'ext': 'mp3',
            'upload_date': '20151013',
            'title': 'Saira: Tujetsch - tuttina cuntinuar cun Sedrun Mustér Turissem',
            'timestamp': 1444709160,
            'duration': 336.816,
        },
        'params': {
            # rtmp download
            'skip_download': True,
        },
    }, {
        'url': 'http://www.rts.ch/play/tv/-/video/le-19h30?id=6348260',
        'md5': '67a2a9ae4e8e62a68d0e9820cc9782df',
        'info_dict': {
            'id': '6348260',
            'display_id': '6348260',
            'ext': 'mp4',
            'duration': 1796.76,
            'title': 'Le 19h30',
            'upload_date': '20141201',
            'timestamp': 1417458600,
            'thumbnail': r're:^https?://.*\.image',
        },
        'params': {
            # m3u8 download
            'skip_download': True,
        }
    }, {
        'url': 'http://play.swissinfo.ch/play/tv/business/video/why-people-were-against-tax-reforms?id=42960270',
        'info_dict': {
            'id': '42960270',
            'ext': 'mp4',
            'title': 'Why people were against tax reforms',
            'description': 'md5:7ac442c558e9630e947427469c4b824d',
            'duration': 94.0,
            'upload_date': '20170215',
            'timestamp': 1487173560,
            'thumbnail': r're:https?://www\.swissinfo\.ch/srgscalableimage/42961964',
            'subtitles': 'count:9',
        },
        'params': {
            'skip_download': True,
        }
    }, {
        'url': 'https://www.srf.ch/play/tv/popupvideoplayer?id=c4dba0ca-e75b-43b2-a34f-f708a4932e01',
        'only_matching': True,
    }, {
        'url': 'https://www.srf.ch/play/tv/10vor10/video/snowden-beantragt-asyl-in-russland?urn=urn:srf:video:28e1a57d-5b76-4399-8ab3-9097f071e6c5',
        'only_matching': True,
    }, {
        'url': 'https://www.rts.ch/play/tv/19h30/video/le-19h30?urn=urn:rts:video:6348260',
        'only_matching': True,
    }, {
        # audio segment, has podcastSdUrl of the full episode
        'url': 'https://www.srf.ch/play/radio/popupaudioplayer?id=50b20dc8-f05b-4972-bf03-e438ff2833eb',
        'only_matching': True,
    }]

    def _real_extract(self, url):
        mobj = self._match_valid_url(url)
        bu = mobj.group('bu')
        media_type = mobj.group('type') or mobj.group('type_2')
        media_id = mobj.group('id')
        return self.url_result('srgssr:%s:%s:%s' % (bu[:3], media_type, media_id), 'SRGSSR')
