# coding: utf-8
from __future__ import unicode_literals

import re
import time

from .common import InfoExtractor
from ..compat import (
    compat_ord,
)
from ..utils import (
    int_or_none,
    parse_duration,
)


class XMinusIE(InfoExtractor):
    _VALID_URL = r"https?://(?:www\.)?x-minus\.org/track/(?P<id>[0-9]+)"
    _TEST = {
        "url": "http://x-minus.org/track/4542/%D0%BF%D0%B5%D1%81%D0%B5%D0%BD%D0%BA%D0%B0-%D1%88%D0%BE%D1%84%D0%B5%D1%80%D0%B0.html",
        "md5": "401a15f2d2dcf6d592cb95528d72a2a8",
        "info_dict": {
            "id": "4542",
            "ext": "mp3",
            "title": "Леонид Агутин-Песенка шофёра",
            "duration": 156,
            "tbr": 320,
            "filesize_approx": 5900000,
            "view_count": int,
            "description": "md5:03238c5b663810bc79cf42ef3c03e371",
        },
    }

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

        artist = self._html_search_regex(
            r'<a[^>]+href="/artist/\d+">([^<]+)</a>', webpage, "artist"
        )
        title = (
            artist
            + "-"
            + self._html_search_regex(
                r'<span[^>]+class="minustrack-full-title(?:\s+[^"]+)?"[^>]*>([^<]+)',
                webpage,
                "title",
            )
        )
        duration = parse_duration(
            self._html_search_regex(
                r'<span[^>]+class="player-duration(?:\s+[^"]+)?"[^>]*>([^<]+)',
                webpage,
                "duration",
                fatal=False,
            )
        )
        mobj = re.search(
            r'<div[^>]+class="dw-info(?:\s+[^"]+)?"[^>]*>(?P<tbr>\d+)\s*кбит/c\s+(?P<filesize>[0-9.]+)\s*мб</div>',
            webpage,
        )
        tbr = filesize_approx = None
        if mobj:
            filesize_approx = float(mobj.group("filesize")) * 1000000
            tbr = float(mobj.group("tbr"))
        view_count = int_or_none(
            self._html_search_regex(
                r'<span><[^>]+class="icon-chart-bar".*?>(\d+)</span>',
                webpage,
                "view count",
                fatal=False,
            )
        )
        description = self._html_search_regex(
            r'(?s)<pre[^>]+id="lyrics-original"[^>]*>(.*?)</pre>',
            webpage,
            "song lyrics",
            fatal=False,
        )
        if description:
            description = re.sub(" *\r *", "\n", description)

        k = self._search_regex(
            r'<div[^>]+id="player-bottom"[^>]+data-k="([^"]+)">',
            webpage,
            "encoded data",
        )
        h = time.time() / 3600
        a = sum(map(int, [compat_ord(c) for c in k])) + int(video_id) + h
        video_url = "http://x-minus.me/dl/minus?id=%s&tkn2=%df%d" % (video_id, a, h)

        return {
            "id": video_id,
            "title": title,
            "url": video_url,
            # The extension is unknown until actual downloading
            "ext": "mp3",
            "duration": duration,
            "filesize_approx": filesize_approx,
            "tbr": tbr,
            "view_count": view_count,
            "description": description,
        }
