# coding: utf-8
from __future__ import unicode_literals

import json
import re
import sys

from .common import InfoExtractor
from ..utils import (
    ExtractorError,
    int_or_none,
    qualities,
)


class IviIE(InfoExtractor):
    IE_DESC = "ivi.ru"
    IE_NAME = "ivi"
    _VALID_URL = r"https?://(?:www\.)?ivi\.(?:ru|tv)/(?:watch/(?:[^/]+/)?|video/player\?.*?videoId=)(?P<id>\d+)"
    _GEO_BYPASS = False
    _GEO_COUNTRIES = ["RU"]
    _LIGHT_KEY = b"\xf1\x02\x32\xb7\xbc\x5c\x7a\xe8\xf7\x96\xc1\x33\x2b\x27\xa1\x8c"
    _LIGHT_URL = "https://api.ivi.ru/light/"

    _TESTS = [
        # Single movie
        {
            "url": "http://www.ivi.ru/watch/53141",
            "md5": "6ff5be2254e796ed346251d117196cf4",
            "info_dict": {
                "id": "53141",
                "ext": "mp4",
                "title": "Иван Васильевич меняет профессию",
                "description": "md5:b924063ea1677c8fe343d8a72ac2195f",
                "duration": 5498,
                "thumbnail": r"re:^https?://.*\.jpg$",
            },
            "skip": "Only works from Russia",
        },
        # Serial's series
        {
            "url": "http://www.ivi.ru/watch/dvoe_iz_lartsa/9549",
            "md5": "221f56b35e3ed815fde2df71032f4b3e",
            "info_dict": {
                "id": "9549",
                "ext": "mp4",
                "title": "Двое из ларца - Дело Гольдберга (1 часть)",
                "series": "Двое из ларца",
                "season": "Сезон 1",
                "season_number": 1,
                "episode": "Дело Гольдберга (1 часть)",
                "episode_number": 1,
                "duration": 2655,
                "thumbnail": r"re:^https?://.*\.jpg$",
            },
            "skip": "Only works from Russia",
        },
        {
            # with MP4-HD720 format
            "url": "http://www.ivi.ru/watch/146500",
            "md5": "d63d35cdbfa1ea61a5eafec7cc523e1e",
            "info_dict": {
                "id": "146500",
                "ext": "mp4",
                "title": "Кукла",
                "description": "md5:ffca9372399976a2d260a407cc74cce6",
                "duration": 5599,
                "thumbnail": r"re:^https?://.*\.jpg$",
            },
            "skip": "Only works from Russia",
        },
        {
            "url": "https://www.ivi.tv/watch/33560/",
            "only_matching": True,
        },
    ]

    # Sorted by quality
    _KNOWN_FORMATS = (
        "MP4-low-mobile",
        "MP4-mobile",
        "FLV-lo",
        "MP4-lo",
        "FLV-hi",
        "MP4-hi",
        "MP4-SHQ",
        "MP4-HD720",
        "MP4-HD1080",
    )

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

        data = json.dumps(
            {
                "method": "da.content.get",
                "params": [
                    video_id,
                    {
                        "site": "s%d",
                        "referrer": "http://www.ivi.ru/watch/%s" % video_id,
                        "contentid": video_id,
                    },
                ],
            }
        )

        bundled = hasattr(sys, "frozen")

        for site in (353, 183):
            content_data = (data % site).encode()
            if site == 353:
                if bundled:
                    continue
                try:
                    from Cryptodome.Cipher import Blowfish
                    from Cryptodome.Hash import CMAC

                    pycryptodomex_found = True
                except ImportError:
                    pycryptodomex_found = False
                    continue

                timestamp = (
                    self._download_json(
                        self._LIGHT_URL,
                        video_id,
                        "Downloading timestamp JSON",
                        data=json.dumps(
                            {"method": "da.timestamp.get", "params": []}
                        ).encode(),
                        fatal=False,
                    )
                    or {}
                ).get("result")
                if not timestamp:
                    continue

                query = {
                    "ts": timestamp,
                    "sign": CMAC.new(
                        self._LIGHT_KEY, timestamp.encode() + content_data, Blowfish
                    ).hexdigest(),
                }
            else:
                query = {}

            video_json = self._download_json(
                self._LIGHT_URL,
                video_id,
                "Downloading video JSON",
                data=content_data,
                query=query,
            )

            error = video_json.get("error")
            if error:
                origin = error.get("origin")
                message = error.get("message") or error.get("user_message")
                extractor_msg = "Unable to download video %s"
                if origin == "NotAllowedForLocation":
                    self.raise_geo_restricted(message, self._GEO_COUNTRIES)
                elif origin == "NoRedisValidData":
                    extractor_msg = "Video %s does not exist"
                elif site == 353:
                    continue
                elif bundled:
                    raise ExtractorError(
                        "This feature does not work from bundled exe. Run youtube-dl from sources.",
                        expected=True,
                    )
                elif not pycryptodomex_found:
                    raise ExtractorError(
                        "pycryptodomex not found. Please install it.", expected=True
                    )
                elif message:
                    extractor_msg += ": " + message
                raise ExtractorError(extractor_msg % video_id, expected=True)
            else:
                break

        result = video_json["result"]
        title = result["title"]

        quality = qualities(self._KNOWN_FORMATS)

        formats = []
        for f in result.get("files", []):
            f_url = f.get("url")
            content_format = f.get("content_format")
            if not f_url or "-MDRM-" in content_format or "-FPS-" in content_format:
                continue
            formats.append(
                {
                    "url": f_url,
                    "format_id": content_format,
                    "quality": quality(content_format),
                    "filesize": int_or_none(f.get("size_in_bytes")),
                }
            )
        self._sort_formats(formats)

        compilation = result.get("compilation")
        episode = title if compilation else None

        title = "%s - %s" % (compilation, title) if compilation is not None else title

        thumbnails = [
            {
                "url": preview["url"],
                "id": preview.get("content_format"),
            }
            for preview in result.get("preview", [])
            if preview.get("url")
        ]

        webpage = self._download_webpage(url, video_id)

        season = self._search_regex(
            r'<li[^>]+class="season active"[^>]*><a[^>]+>([^<]+)',
            webpage,
            "season",
            default=None,
        )
        season_number = int_or_none(
            self._search_regex(
                r'<li[^>]+class="season active"[^>]*><a[^>]+data-season(?:-index)?="(\d+)"',
                webpage,
                "season number",
                default=None,
            )
        )

        episode_number = int_or_none(
            self._search_regex(
                r'[^>]+itemprop="episode"[^>]*>\s*<meta[^>]+itemprop="episodeNumber"[^>]+content="(\d+)',
                webpage,
                "episode number",
                default=None,
            )
        )

        description = self._og_search_description(
            webpage, default=None
        ) or self._html_search_meta("description", webpage, "description", default=None)

        return {
            "id": video_id,
            "title": title,
            "series": compilation,
            "season": season,
            "season_number": season_number,
            "episode": episode,
            "episode_number": episode_number,
            "thumbnails": thumbnails,
            "description": description,
            "duration": int_or_none(result.get("duration")),
            "formats": formats,
        }


class IviCompilationIE(InfoExtractor):
    IE_DESC = "ivi.ru compilations"
    IE_NAME = "ivi:compilation"
    _VALID_URL = r"https?://(?:www\.)?ivi\.ru/watch/(?!\d+)(?P<compilationid>[a-z\d_-]+)(?:/season(?P<seasonid>\d+))?$"
    _TESTS = [
        {
            "url": "http://www.ivi.ru/watch/dvoe_iz_lartsa",
            "info_dict": {
                "id": "dvoe_iz_lartsa",
                "title": "Двое из ларца (2006 - 2008)",
            },
            "playlist_mincount": 24,
        },
        {
            "url": "http://www.ivi.ru/watch/dvoe_iz_lartsa/season1",
            "info_dict": {
                "id": "dvoe_iz_lartsa/season1",
                "title": "Двое из ларца (2006 - 2008) 1 сезон",
            },
            "playlist_mincount": 12,
        },
    ]

    def _extract_entries(self, html, compilation_id):
        return [
            self.url_result(
                "http://www.ivi.ru/watch/%s/%s" % (compilation_id, serie),
                IviIE.ie_key(),
            )
            for serie in re.findall(
                r'<a\b[^>]+\bhref=["\']/watch/%s/(\d+)["\']' % compilation_id, html
            )
        ]

    def _real_extract(self, url):
        mobj = re.match(self._VALID_URL, url)
        compilation_id = mobj.group("compilationid")
        season_id = mobj.group("seasonid")

        if season_id is not None:  # Season link
            season_page = self._download_webpage(
                url, compilation_id, "Downloading season %s web page" % season_id
            )
            playlist_id = "%s/season%s" % (compilation_id, season_id)
            playlist_title = self._html_search_meta("title", season_page, "title")
            entries = self._extract_entries(season_page, compilation_id)
        else:  # Compilation link
            compilation_page = self._download_webpage(
                url, compilation_id, "Downloading compilation web page"
            )
            playlist_id = compilation_id
            playlist_title = self._html_search_meta("title", compilation_page, "title")
            seasons = re.findall(
                r'<a href="/watch/%s/season(\d+)' % compilation_id, compilation_page
            )
            if not seasons:  # No seasons in this compilation
                entries = self._extract_entries(compilation_page, compilation_id)
            else:
                entries = []
                for season_id in seasons:
                    season_page = self._download_webpage(
                        "http://www.ivi.ru/watch/%s/season%s"
                        % (compilation_id, season_id),
                        compilation_id,
                        "Downloading season %s web page" % season_id,
                    )
                    entries.extend(self._extract_entries(season_page, compilation_id))

        return self.playlist_result(entries, playlist_id, playlist_title)
