from __future__ import unicode_literals

import re
import json

from .common import InfoExtractor
from ..compat import (
    compat_str,
    compat_urlparse,
    compat_HTTPError,
)
from ..utils import (
    ExtractorError,
    int_or_none,
    parse_iso8601,
)


class VevoBaseIE(InfoExtractor):
    def _extract_json(self, webpage, video_id):
        return self._parse_json(
            self._search_regex(
                r"window\.__INITIAL_STORE__\s*=\s*({.+?});\s*</script>",
                webpage,
                "initial store",
            ),
            video_id,
        )


class VevoIE(VevoBaseIE):
    """
    Accepts urls from vevo.com or in the format 'vevo:{id}'
    (currently used by MTVIE and MySpaceIE)
    """

    _VALID_URL = r"""(?x)
        (?:https?://(?:www\.)?vevo\.com/watch/(?!playlist|genre)(?:[^/]+/(?:[^/]+/)?)?|
           https?://cache\.vevo\.com/m/html/embed\.html\?video=|
           https?://videoplayer\.vevo\.com/embed/embedded\?videoId=|
           https?://embed\.vevo\.com/.*?[?&]isrc=|
           vevo:)
        (?P<id>[^&?#]+)"""

    _TESTS = [
        {
            "url": "http://www.vevo.com/watch/hurts/somebody-to-die-for/GB1101300280",
            "md5": "95ee28ee45e70130e3ab02b0f579ae23",
            "info_dict": {
                "id": "GB1101300280",
                "ext": "mp4",
                "title": "Hurts - Somebody to Die For",
                "timestamp": 1372057200,
                "upload_date": "20130624",
                "uploader": "Hurts",
                "track": "Somebody to Die For",
                "artist": "Hurts",
                "genre": "Pop",
            },
            "expected_warnings": [
                "Unable to download SMIL file",
                "Unable to download info",
            ],
        },
        {
            "note": "v3 SMIL format",
            "url": "http://www.vevo.com/watch/cassadee-pope/i-wish-i-could-break-your-heart/USUV71302923",
            "md5": "f6ab09b034f8c22969020b042e5ac7fc",
            "info_dict": {
                "id": "USUV71302923",
                "ext": "mp4",
                "title": "Cassadee Pope - I Wish I Could Break Your Heart",
                "timestamp": 1392796919,
                "upload_date": "20140219",
                "uploader": "Cassadee Pope",
                "track": "I Wish I Could Break Your Heart",
                "artist": "Cassadee Pope",
                "genre": "Country",
            },
            "expected_warnings": [
                "Unable to download SMIL file",
                "Unable to download info",
            ],
        },
        {
            "note": "Age-limited video",
            "url": "https://www.vevo.com/watch/justin-timberlake/tunnel-vision-explicit/USRV81300282",
            "info_dict": {
                "id": "USRV81300282",
                "ext": "mp4",
                "title": "Justin Timberlake - Tunnel Vision (Explicit)",
                "age_limit": 18,
                "timestamp": 1372888800,
                "upload_date": "20130703",
                "uploader": "Justin Timberlake",
                "track": "Tunnel Vision (Explicit)",
                "artist": "Justin Timberlake",
                "genre": "Pop",
            },
            "expected_warnings": [
                "Unable to download SMIL file",
                "Unable to download info",
            ],
        },
        {
            "note": "No video_info",
            "url": "http://www.vevo.com/watch/k-camp-1/Till-I-Die/USUV71503000",
            "md5": "8b83cc492d72fc9cf74a02acee7dc1b0",
            "info_dict": {
                "id": "USUV71503000",
                "ext": "mp4",
                "title": "K Camp ft. T.I. - Till I Die",
                "age_limit": 18,
                "timestamp": 1449468000,
                "upload_date": "20151207",
                "uploader": "K Camp",
                "track": "Till I Die",
                "artist": "K Camp",
                "genre": "Hip-Hop",
            },
            "expected_warnings": [
                "Unable to download SMIL file",
                "Unable to download info",
            ],
        },
        {
            "note": "Featured test",
            "url": "https://www.vevo.com/watch/lemaitre/Wait/USUV71402190",
            "md5": "d28675e5e8805035d949dc5cf161071d",
            "info_dict": {
                "id": "USUV71402190",
                "ext": "mp4",
                "title": "Lemaitre ft. LoLo - Wait",
                "age_limit": 0,
                "timestamp": 1413432000,
                "upload_date": "20141016",
                "uploader": "Lemaitre",
                "track": "Wait",
                "artist": "Lemaitre",
                "genre": "Electronic",
            },
            "expected_warnings": [
                "Unable to download SMIL file",
                "Unable to download info",
            ],
        },
        {
            "note": "Only available via webpage",
            "url": "http://www.vevo.com/watch/GBUV71600656",
            "md5": "67e79210613865b66a47c33baa5e37fe",
            "info_dict": {
                "id": "GBUV71600656",
                "ext": "mp4",
                "title": "ABC - Viva Love",
                "age_limit": 0,
                "timestamp": 1461830400,
                "upload_date": "20160428",
                "uploader": "ABC",
                "track": "Viva Love",
                "artist": "ABC",
                "genre": "Pop",
            },
            "expected_warnings": ["Failed to download video versions info"],
        },
        {
            # no genres available
            "url": "http://www.vevo.com/watch/INS171400764",
            "only_matching": True,
        },
        {
            # Another case available only via the webpage; using streams/streamsV3 formats
            # Geo-restricted to Netherlands/Germany
            "url": "http://www.vevo.com/watch/boostee/pop-corn-clip-officiel/FR1A91600909",
            "only_matching": True,
        },
        {
            "url": "https://embed.vevo.com/?isrc=USH5V1923499&partnerId=4d61b777-8023-4191-9ede-497ed6c24647&partnerAdCode=",
            "only_matching": True,
        },
    ]
    _VERSIONS = {
        0: "youtube",  # only in AuthenticateVideo videoVersions
        1: "level3",
        2: "akamai",
        3: "level3",
        4: "amazon",
    }

    def _initialize_api(self, video_id):
        webpage = self._download_webpage(
            "https://accounts.vevo.com/token",
            None,
            note="Retrieving oauth token",
            errnote="Unable to retrieve oauth token",
            data=json.dumps(
                {
                    "client_id": "SPupX1tvqFEopQ1YS6SS",
                    "grant_type": "urn:vevo:params:oauth:grant-type:anonymous",
                }
            ).encode("utf-8"),
            headers={
                "Content-Type": "application/json",
            },
        )

        if re.search(r"(?i)THIS PAGE IS CURRENTLY UNAVAILABLE IN YOUR REGION", webpage):
            self.raise_geo_restricted(
                "%s said: This page is currently unavailable in your region"
                % self.IE_NAME
            )

        auth_info = self._parse_json(webpage, video_id)
        self._api_url_template = (
            self.http_scheme()
            + "//apiv2.vevo.com/%s?token="
            + auth_info["legacy_token"]
        )

    def _call_api(self, path, *args, **kwargs):
        try:
            data = self._download_json(self._api_url_template % path, *args, **kwargs)
        except ExtractorError as e:
            if isinstance(e.cause, compat_HTTPError):
                errors = self._parse_json(e.cause.read().decode(), None)["errors"]
                error_message = ", ".join([error["message"] for error in errors])
                raise ExtractorError(
                    "%s said: %s" % (self.IE_NAME, error_message), expected=True
                )
            raise
        return data

    def _real_extract(self, url):
        video_id = self._match_id(url)

        self._initialize_api(video_id)

        video_info = self._call_api(
            "video/%s" % video_id,
            video_id,
            "Downloading api video info",
            "Failed to download video info",
        )

        video_versions = self._call_api(
            "video/%s/streams" % video_id,
            video_id,
            "Downloading video versions info",
            "Failed to download video versions info",
            fatal=False,
        )

        # Some videos are only available via webpage (e.g.
        # https://github.com/ytdl-org/youtube-dl/issues/9366)
        if not video_versions:
            webpage = self._download_webpage(url, video_id)
            json_data = self._extract_json(webpage, video_id)
            if "streams" in json_data.get("default", {}):
                video_versions = json_data["default"]["streams"][video_id][0]
            else:
                video_versions = [
                    value
                    for key, value in json_data["apollo"]["data"].items()
                    if key.startswith("%s.streams" % video_id)
                ]

        uploader = None
        artist = None
        featured_artist = None
        artists = video_info.get("artists")
        for curr_artist in artists:
            if curr_artist.get("role") == "Featured":
                featured_artist = curr_artist["name"]
            else:
                artist = uploader = curr_artist["name"]

        formats = []
        for video_version in video_versions:
            version = self._VERSIONS.get(video_version.get("version"), "generic")
            version_url = video_version.get("url")
            if not version_url:
                continue

            if ".ism" in version_url:
                continue
            elif ".mpd" in version_url:
                formats.extend(
                    self._extract_mpd_formats(
                        version_url,
                        video_id,
                        mpd_id="dash-%s" % version,
                        note="Downloading %s MPD information" % version,
                        errnote="Failed to download %s MPD information" % version,
                        fatal=False,
                    )
                )
            elif ".m3u8" in version_url:
                formats.extend(
                    self._extract_m3u8_formats(
                        version_url,
                        video_id,
                        "mp4",
                        "m3u8_native",
                        m3u8_id="hls-%s" % version,
                        note="Downloading %s m3u8 information" % version,
                        errnote="Failed to download %s m3u8 information" % version,
                        fatal=False,
                    )
                )
            else:
                m = re.search(
                    r"""(?xi)
                    _(?P<width>[0-9]+)x(?P<height>[0-9]+)
                    _(?P<vcodec>[a-z0-9]+)
                    _(?P<vbr>[0-9]+)
                    _(?P<acodec>[a-z0-9]+)
                    _(?P<abr>[0-9]+)
                    \.(?P<ext>[a-z0-9]+)""",
                    version_url,
                )
                if not m:
                    continue

                formats.append(
                    {
                        "url": version_url,
                        "format_id": "http-%s-%s" % (version, video_version["quality"]),
                        "vcodec": m.group("vcodec"),
                        "acodec": m.group("acodec"),
                        "vbr": int(m.group("vbr")),
                        "abr": int(m.group("abr")),
                        "ext": m.group("ext"),
                        "width": int(m.group("width")),
                        "height": int(m.group("height")),
                    }
                )
        self._sort_formats(formats)

        track = video_info["title"]
        if featured_artist:
            artist = "%s ft. %s" % (artist, featured_artist)
        title = "%s - %s" % (artist, track) if artist else track

        genres = video_info.get("genres")
        genre = (
            genres[0]
            if genres and isinstance(genres, list) and isinstance(genres[0], compat_str)
            else None
        )

        is_explicit = video_info.get("isExplicit")
        if is_explicit is True:
            age_limit = 18
        elif is_explicit is False:
            age_limit = 0
        else:
            age_limit = None

        return {
            "id": video_id,
            "title": title,
            "formats": formats,
            "thumbnail": video_info.get("imageUrl") or video_info.get("thumbnailUrl"),
            "timestamp": parse_iso8601(video_info.get("releaseDate")),
            "uploader": uploader,
            "duration": int_or_none(video_info.get("duration")),
            "view_count": int_or_none(video_info.get("views", {}).get("total")),
            "age_limit": age_limit,
            "track": track,
            "artist": uploader,
            "genre": genre,
        }


class VevoPlaylistIE(VevoBaseIE):
    _VALID_URL = (
        r"https?://(?:www\.)?vevo\.com/watch/(?P<kind>playlist|genre)/(?P<id>[^/?#&]+)"
    )

    _TESTS = [
        {
            "url": "http://www.vevo.com/watch/playlist/dadbf4e7-b99f-4184-9670-6f0e547b6a29",
            "info_dict": {
                "id": "dadbf4e7-b99f-4184-9670-6f0e547b6a29",
                "title": "Best-Of: Birdman",
            },
            "playlist_count": 10,
        },
        {
            "url": "http://www.vevo.com/watch/genre/rock",
            "info_dict": {
                "id": "rock",
                "title": "Rock",
            },
            "playlist_count": 20,
        },
        {
            "url": "http://www.vevo.com/watch/playlist/dadbf4e7-b99f-4184-9670-6f0e547b6a29?index=0",
            "md5": "32dcdfddddf9ec6917fc88ca26d36282",
            "info_dict": {
                "id": "USCMV1100073",
                "ext": "mp4",
                "title": "Birdman - Y.U. MAD",
                "timestamp": 1323417600,
                "upload_date": "20111209",
                "uploader": "Birdman",
                "track": "Y.U. MAD",
                "artist": "Birdman",
                "genre": "Rap/Hip-Hop",
            },
            "expected_warnings": ["Unable to download SMIL file"],
        },
        {
            "url": "http://www.vevo.com/watch/genre/rock?index=0",
            "only_matching": True,
        },
    ]

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        playlist_id = mobj.group("id")
        playlist_kind = mobj.group("kind")

        webpage = self._download_webpage(url, playlist_id)

        qs = compat_urlparse.parse_qs(compat_urlparse.urlparse(url).query)
        index = qs.get("index", [None])[0]

        if index:
            video_id = self._search_regex(
                r'<meta[^>]+content=(["\'])vevo://video/(?P<id>.+?)\1[^>]*>',
                webpage,
                "video id",
                default=None,
                group="id",
            )
            if video_id:
                return self.url_result("vevo:%s" % video_id, VevoIE.ie_key())

        playlists = self._extract_json(webpage, playlist_id)["default"][
            "%ss" % playlist_kind
        ]

        playlist = (
            list(playlists.values())[0]
            if playlist_kind == "playlist"
            else playlists[playlist_id]
        )

        entries = [
            self.url_result("vevo:%s" % src, VevoIE.ie_key())
            for src in playlist["isrcs"]
        ]

        return self.playlist_result(
            entries,
            playlist.get("playlistId") or playlist_id,
            playlist.get("name"),
            playlist.get("description"),
        )
