import functools
import hashlib
import hmac
import json
import urllib.parse

from .common import InfoExtractor
from ..utils import (
    OnDemandPagedList,
    int_or_none,
    traverse_obj,
    urljoin,
)


class ZingMp3BaseIE(InfoExtractor):
    _VALID_URL_TMPL = r'https?://(?:mp3\.zing|zingmp3)\.vn/(?P<type>(?:%s))/[^/]+/(?P<id>\w+)(?:\.html|\?)'
    _GEO_COUNTRIES = ['VN']
    _DOMAIN = 'https://zingmp3.vn'
    _SLUG_API = {
        # For audio/video
        'bai-hat': '/api/v2/page/get/song',
        'embed': '/api/v2/page/get/song',
        'video-clip': '/api/v2/page/get/video',
        'lyric': '/api/v2/lyric/get/lyric',
        'song_streaming': '/api/v2/song/get/streaming',
        # For playlist
        'playlist': '/api/v2/page/get/playlist',
        'album': '/api/v2/page/get/playlist',
        # For chart
        'zing-chart': '/api/v2/page/get/chart-home',
        'zing-chart-tuan': '/api/v2/page/get/week-chart',
        'moi-phat-hanh': '/api/v2/page/get/newrelease-chart',
        'the-loai-video': '/api/v2/video/get/list',
        # For user
        'info-artist': '/api/v2/page/get/artist',
        'user-list-song': '/api/v2/song/get/list',
        'user-list-video': '/api/v2/video/get/list',
    }
    _PER_PAGE = 50
    _API_KEY = '88265e23d4284f25963e6eedac8fbfa3'
    _SECRET_KEY = b'2aa2d1c561e809b267f3638c4a307aab'

    def _extract_item(self, item, song_id, type_url, fatal):
        item_id = item.get('encodeId') or song_id
        title = item.get('title') or item.get('alias')

        if type_url == 'video-clip':
            info = self._download_json(
                'http://api.mp3.zing.vn/api/mobile/video/getvideoinfo', item_id,
                query={'requestdata': json.dumps({'id': item_id})})
            source = item.get('streaming')
            if info.get('source'):
                source['mp4'] = info.get('source')
        else:
            api = self.get_api_with_signature(name_api=self._SLUG_API.get('song_streaming'), param={'id': item_id})
            source = self._download_json(api, video_id=item_id).get('data')

        formats = []
        for k, v in (source or {}).items():
            if not v:
                continue
            if k in ('mp4', 'hls'):
                for res, video_url in v.items():
                    if not video_url:
                        continue
                    if k == 'hls':
                        formats.extend(self._extract_m3u8_formats(
                            video_url, item_id, 'mp4',
                            'm3u8_native', m3u8_id=k, fatal=False))
                    elif k == 'mp4':
                        formats.append({
                            'format_id': 'mp4-' + res,
                            'url': video_url,
                            'height': int_or_none(res),
                        })
                continue
            elif v == 'VIP':
                continue
            formats.append({
                'ext': 'mp3',
                'format_id': k,
                'tbr': int_or_none(k),
                'url': self._proto_relative_url(v),
                'vcodec': 'none',
            })
        if not formats:
            if not fatal:
                return
            msg = item.get('msg')
            if msg == 'Sorry, this content is not available in your country.':
                self.raise_geo_restricted(countries=self._GEO_COUNTRIES, metadata_available=True)
            self.raise_no_formats(msg, expected=True)
        self._sort_formats(formats)

        lyric = item.get('lyric')
        if not lyric:
            api = self.get_api_with_signature(name_api=self._SLUG_API.get("lyric"), param={'id': item_id})
            info_lyric = self._download_json(api, video_id=item_id)
            lyric = traverse_obj(info_lyric, ('data', 'file'))
        subtitles = {
            'origin': [{
                'url': lyric,
            }],
        } if lyric else None

        album = item.get('album') or {}

        return {
            'id': item_id,
            'title': title,
            'formats': formats,
            'thumbnail': traverse_obj(item, 'thumbnail', 'thumbnailM'),
            'subtitles': subtitles,
            'duration': int_or_none(item.get('duration')),
            'track': title,
            'artist': traverse_obj(item, 'artistsNames', 'artists_names'),
            'album': traverse_obj(album, 'name', 'title'),
            'album_artist': traverse_obj(album, 'artistsNames', 'artists_names'),
        }

    def _real_initialize(self):
        if not self.get_param('cookiefile') and not self.get_param('cookiesfrombrowser'):
            self._request_webpage(self.get_api_with_signature(name_api=self._SLUG_API['bai-hat'], param={'id': ''}),
                                  None, note='Updating cookies')

    def _real_extract(self, url):
        song_id, type_url = self._match_valid_url(url).group('id', 'type')
        api = self.get_api_with_signature(name_api=self._SLUG_API[type_url], param={'id': song_id})
        return self._process_data(self._download_json(api, song_id)['data'], song_id, type_url)

    def get_api_with_signature(self, name_api, param):
        param.update({'ctime': '1'})
        sha256 = hashlib.sha256(''.join(f'{i}={param[i]}' for i in sorted(param)).encode('utf-8')).hexdigest()
        data = {
            'apiKey': self._API_KEY,
            'sig': hmac.new(self._SECRET_KEY, f'{name_api}{sha256}'.encode('utf-8'), hashlib.sha512).hexdigest(),
            **param,
        }
        return f'{self._DOMAIN}{name_api}?{urllib.parse.urlencode(data)}'

    def _entries(self, items):
        for item in items or []:
            if item and item.get('link'):
                yield self.url_result(urljoin(self._DOMAIN, item['link']))


class ZingMp3IE(ZingMp3BaseIE):
    _VALID_URL = ZingMp3BaseIE._VALID_URL_TMPL % 'bai-hat|video-clip|embed'
    _TESTS = [{
        'url': 'https://mp3.zing.vn/bai-hat/Xa-Mai-Xa-Bao-Thy/ZWZB9WAB.html',
        'md5': 'ead7ae13693b3205cbc89536a077daed',
        'info_dict': {
            'id': 'ZWZB9WAB',
            'title': 'Xa Mãi Xa',
            'ext': 'mp3',
            'thumbnail': r're:^https?://.+\.jpg',
            'subtitles': {
                'origin': [{
                    'ext': 'lrc',
                }]
            },
            'duration': 255,
            'track': 'Xa Mãi Xa',
            'artist': 'Bảo Thy',
            'album': 'Special Album',
            'album_artist': 'Bảo Thy',
        },
    }, {
        'url': 'https://zingmp3.vn/video-clip/Suong-Hoa-Dua-Loi-K-ICM-RYO/ZO8ZF7C7.html',
        'md5': 'c7f23d971ac1a4f675456ed13c9b9612',
        'info_dict': {
            'id': 'ZO8ZF7C7',
            'title': 'Sương Hoa Đưa Lối',
            'ext': 'mp4',
            'thumbnail': r're:^https?://.+\.jpg',
            'duration': 207,
            'track': 'Sương Hoa Đưa Lối',
            'artist': 'K-ICM, RYO',
            'album': 'Sương Hoa Đưa Lối (Single)',
            'album_artist': 'K-ICM, RYO',
        },
    }, {
        'url': 'https://zingmp3.vn/bai-hat/Nguoi-Yeu-Toi-Lanh-Lung-Sat-Da-Mr-Siro/ZZ6IW7OU.html',
        'md5': '3e9f7a9bd0d965573dbff8d7c68b629d',
        'info_dict': {
            'id': 'ZZ6IW7OU',
            'title': 'Người Yêu Tôi Lạnh Lùng Sắt Đá',
            'ext': 'mp3',
            'thumbnail': r're:^https?://.+\.jpg',
            'duration': 303,
            'track': 'Người Yêu Tôi Lạnh Lùng Sắt Đá',
            'artist': 'Mr. Siro',
            'album': 'Người Yêu Tôi Lạnh Lùng Sắt Đá (Single)',
            'album_artist': 'Mr. Siro',
        },
    }, {
        'url': 'https://zingmp3.vn/embed/song/ZWZEI76B?start=false',
        'only_matching': True,
    }, {
        'url': 'https://zingmp3.vn/bai-hat/Xa-Mai-Xa-Bao-Thy/ZWZB9WAB.html',
        'only_matching': True,
    }]
    IE_NAME = 'zingmp3'
    IE_DESC = 'zingmp3.vn'

    def _process_data(self, data, song_id, type_url):
        return self._extract_item(data, song_id, type_url, True)


class ZingMp3AlbumIE(ZingMp3BaseIE):
    _VALID_URL = ZingMp3BaseIE._VALID_URL_TMPL % 'album|playlist'
    _TESTS = [{
        'url': 'http://mp3.zing.vn/album/Lau-Dai-Tinh-Ai-Bang-Kieu-Minh-Tuyet/ZWZBWDAF.html',
        'info_dict': {
            'id': 'ZWZBWDAF',
            'title': 'Lâu Đài Tình Ái',
        },
        'playlist_mincount': 9,
    }, {
        'url': 'https://zingmp3.vn/album/Nhung-Bai-Hat-Hay-Nhat-Cua-Mr-Siro-Mr-Siro/ZWZAEZZD.html',
        'info_dict': {
            'id': 'ZWZAEZZD',
            'title': 'Những Bài Hát Hay Nhất Của Mr. Siro',
        },
        'playlist_mincount': 49,
    }, {
        'url': 'http://mp3.zing.vn/playlist/Duong-Hong-Loan-apollobee/IWCAACCB.html',
        'only_matching': True,
    }, {
        'url': 'https://zingmp3.vn/album/Lau-Dai-Tinh-Ai-Bang-Kieu-Minh-Tuyet/ZWZBWDAF.html',
        'only_matching': True,
    }]
    IE_NAME = 'zingmp3:album'

    def _process_data(self, data, song_id, type_url):
        items = traverse_obj(data, ('song', 'items')) or []
        return self.playlist_result(self._entries(items), traverse_obj(data, 'id', 'encodeId'),
                                    traverse_obj(data, 'name', 'title'))


class ZingMp3ChartHomeIE(ZingMp3BaseIE):
    _VALID_URL = r'https?://(?:mp3\.zing|zingmp3)\.vn/(?P<id>(?:zing-chart|moi-phat-hanh))/?(?:[#?]|$)'
    _TESTS = [{
        'url': 'https://zingmp3.vn/zing-chart',
        'info_dict': {
            'id': 'zing-chart',
            'title': 'zing-chart',
        },
        'playlist_mincount': 100,
    }, {
        'url': 'https://zingmp3.vn/moi-phat-hanh',
        'info_dict': {
            'id': 'moi-phat-hanh',
            'title': 'moi-phat-hanh',
        },
        'playlist_mincount': 100,
    }]
    IE_NAME = 'zingmp3:chart-home'

    def _real_extract(self, url):
        type_url = self._match_id(url)
        api = self.get_api_with_signature(name_api=self._SLUG_API[type_url], param={'id': type_url})
        return self._process_data(self._download_json(api, type_url)['data'], type_url, type_url)

    def _process_data(self, data, chart_id, type_url):
        if type_url == 'zing-chart':
            items = traverse_obj(data, ('RTChart', 'items'), default=[])
        else:
            items = data.get('items')
        return self.playlist_result(self._entries(items), type_url, type_url)


class ZingMp3WeekChartIE(ZingMp3BaseIE):
    _VALID_URL = r'https?://(?:mp3\.zing|zingmp3)\.vn/(?P<type>zing-chart-tuan)/[^/?#]+/(?P<id>\w+)'
    IE_NAME = 'zingmp3:week-chart'
    _TESTS = [{
        'url': 'https://zingmp3.vn/zing-chart-tuan/Bai-hat-Viet-Nam/IWZ9Z08I.html',
        'info_dict': {
            'id': 'IWZ9Z08I',
            'title': 'zing-chart-vn',
        },
        'playlist_mincount': 10,
    }, {
        'url': 'https://zingmp3.vn/zing-chart-tuan/Bai-hat-US-UK/IWZ9Z0BW.html',
        'info_dict': {
            'id': 'IWZ9Z0BW',
            'title': 'zing-chart-us',
        },
        'playlist_mincount': 10,
    }, {
        'url': 'https://zingmp3.vn/zing-chart-tuan/Bai-hat-KPop/IWZ9Z0BO.html',
        'info_dict': {
            'id': 'IWZ9Z0BO',
            'title': 'zing-chart-korea',
        },
        'playlist_mincount': 10,
    }]

    def _process_data(self, data, chart_id, type_url):
        return self.playlist_result(self._entries(data['items']), chart_id, f'zing-chart-{data.get("country", "")}')


class ZingMp3ChartMusicVideoIE(ZingMp3BaseIE):
    _VALID_URL = r'https?://(?:mp3\.zing|zingmp3)\.vn/(?P<type>the-loai-video)/(?P<regions>[^/]+)/(?P<id>[^\.]+)'
    IE_NAME = 'zingmp3:chart-music-video'
    _TESTS = [{
        'url': 'https://zingmp3.vn/the-loai-video/Viet-Nam/IWZ9Z08I.html',
        'info_dict': {
            'id': 'IWZ9Z08I',
            'title': 'the-loai-video_Viet-Nam',
        },
        'playlist_mincount': 400,
    }, {
        'url': 'https://zingmp3.vn/the-loai-video/Au-My/IWZ9Z08O.html',
        'info_dict': {
            'id': 'IWZ9Z08O',
            'title': 'the-loai-video_Au-My',
        },
        'playlist_mincount': 40,
    }, {
        'url': 'https://zingmp3.vn/the-loai-video/Han-Quoc/IWZ9Z08W.html',
        'info_dict': {
            'id': 'IWZ9Z08W',
            'title': 'the-loai-video_Han-Quoc',
        },
        'playlist_mincount': 30,
    }, {
        'url': 'https://zingmp3.vn/the-loai-video/Khong-Loi/IWZ9Z086.html',
        'info_dict': {
            'id': 'IWZ9Z086',
            'title': 'the-loai-video_Khong-Loi',
        },
        'playlist_mincount': 10,
    }]

    def _fetch_page(self, song_id, type_url, page):
        page += 1
        api = self.get_api_with_signature(name_api=self._SLUG_API[type_url], param={
            'id': song_id,
            'type': 'genre',
            'page': page,
            'count': self._PER_PAGE
        })
        data = self._download_json(api, song_id)['data']
        return self._entries(data.get('items'))

    def _real_extract(self, url):
        song_id, regions, type_url = self._match_valid_url(url).group('id', 'regions', 'type')
        entries = OnDemandPagedList(functools.partial(self._fetch_page, song_id, type_url), self._PER_PAGE)
        return self.playlist_result(entries, song_id, f'{type_url}_{regions}')


class ZingMp3UserIE(ZingMp3BaseIE):
    _VALID_URL = r'''(?x)
                        https?://
                            (?:mp3\.zing|zingmp3)\.vn/
                            (?P<user>[^/]+)
                            (?:
                                /(?P<type>bai-hat|single|album|video)
                            )
                            /?(?:[?#]|$)
                    '''
    IE_NAME = 'zingmp3:user'
    _TESTS = [{
        'url': 'https://zingmp3.vn/Mr-Siro/bai-hat',
        'info_dict': {
            'id': 'IWZ98609',
            'title': 'Mr. Siro - bai-hat',
            'description': 'md5:85ab29bd7b21725c12bf76fd1d6922e5',
        },
        'playlist_mincount': 91,
    }, {
        'url': 'https://zingmp3.vn/Mr-Siro/album',
        'info_dict': {
            'id': 'IWZ98609',
            'title': 'Mr. Siro - album',
            'description': 'md5:85ab29bd7b21725c12bf76fd1d6922e5',
        },
        'playlist_mincount': 3,
    }, {
        'url': 'https://zingmp3.vn/Mr-Siro/single',
        'info_dict': {
            'id': 'IWZ98609',
            'title': 'Mr. Siro - single',
            'description': 'md5:85ab29bd7b21725c12bf76fd1d6922e5',
        },
        'playlist_mincount': 20,
    }, {
        'url': 'https://zingmp3.vn/Mr-Siro/video',
        'info_dict': {
            'id': 'IWZ98609',
            'title': 'Mr. Siro - video',
            'description': 'md5:85ab29bd7b21725c12bf76fd1d6922e5',
        },
        'playlist_mincount': 15,
    }]

    def _fetch_page(self, user_id, type_url, page):
        page += 1
        name_api = self._SLUG_API['user-list-song'] if type_url == 'bai-hat' else self._SLUG_API['user-list-video']
        api = self.get_api_with_signature(name_api=name_api, param={
            'id': user_id,
            'type': 'artist',
            'page': page,
            'count': self._PER_PAGE
        })
        data = self._download_json(api, user_id, query={'sort': 'new', 'sectionId': 'aSong'})['data']
        return self._entries(data.get('items'))

    def _real_extract(self, url):
        user_alias, type_url = self._match_valid_url(url).group('user', 'type')
        if not type_url:
            type_url = 'bai-hat'
        user_info = self._download_json(
            self.get_api_with_signature(name_api=self._SLUG_API['info-artist'], param={}),
            video_id=user_alias, query={'alias': user_alias})['data']
        user_id = user_info.get('id')
        biography = user_info.get('biography')
        if type_url == 'bai-hat' or type_url == 'video':
            entries = OnDemandPagedList(functools.partial(self._fetch_page, user_id, type_url), self._PER_PAGE)
            return self.playlist_result(entries, user_id, f'{user_info.get("name")} - {type_url}', biography)
        else:
            entries = []
            for section in user_info.get('sections', {}):
                if section.get('link') == f'/{user_alias}/{type_url}':
                    items = section.get('items')
                    for item in items:
                        entries.append(self.url_result(urljoin(self._DOMAIN, item.get('link'))))
                    break
            return self.playlist_result(entries, user_id, f'{user_info.get("name")} - {type_url}', biography)