# coding: utf-8
from __future__ import unicode_literals

import json
import re

from .common import InfoExtractor
from ..compat import compat_HTTPError
from ..utils import (
    ExtractorError,
    int_or_none,
    try_get,
)


class ImgGamingBaseIE(InfoExtractor):
    _API_BASE = 'https://dce-frontoffice.imggaming.com/api/v2/'
    _API_KEY = '857a1e5d-e35e-4fdf-805b-a87b6f8364bf'
    _HEADERS = None
    _LOGIN_REQUIRED = True
    _LOGIN_SUFFIX = ''
    _MANIFEST_HEADERS = {'Accept-Encoding': 'identity'}
    _REALM = None
    _TOKEN = None
    _VALID_URL_TEMPL = r'https?://%s/(?P<type>live|video)/(?P<id>\d+)'

    def _real_initialize(self):
        if not self._LOGIN_REQUIRED:
            return

        self._HEADERS = {
            'Realm': 'dce.' + self._REALM,
            'x-api-key': self._API_KEY,
        }

        email, password = self._get_login_info()
        if email is None:
            self.raise_login_required()

        p_headers = self._HEADERS.copy()
        p_headers['Content-Type'] = 'application/json'
        self._HEADERS['Authorization'] = 'Bearer ' + self._download_json(
            self._API_BASE + 'login' + self._LOGIN_SUFFIX,
            None, 'Logging in', data=json.dumps({
                'id': email,
                'secret': password,
            }).encode(), headers=p_headers)['authorisationToken']

    def _extract_media_id(self, url, display_id):
        return display_id

    def _extract_dve_api_url(self, media_id, media_type):
        url = self._API_BASE + 'stream'
        if media_type == 'video':
            url += '/vod/' + media_id
        else:
            url += '?eventId=' + media_id
        try:
            return self._download_json(
                url, media_id, headers=self._HEADERS)['playerUrlCallback']
        except ExtractorError as e:
            if isinstance(e.cause, compat_HTTPError) and e.cause.code == 403:
                raise ExtractorError(
                    self._parse_json(e.cause.read().decode(), media_id)['messages'][0],
                    expected=True)
            raise

    def _real_extract(self, url):
        media_type, display_id = re.match(self._VALID_URL, url).groups()
        media_id = self._extract_media_id(url, display_id)
        dve_api_url = self._extract_dve_api_url(media_id, media_type)
        video_data = self._download_json(dve_api_url, media_id)
        is_live = media_type == 'live'
        if is_live:
            title = self._live_title(self._download_json(
                self._API_BASE + 'event/' + media_id,
                media_id, headers=self._HEADERS)['title'])
        else:
            title = video_data['name']

        formats = []
        for proto in ('hls', 'dash'):
            media_url = video_data.get(proto + 'Url') or try_get(video_data, lambda x: x[proto]['url'])
            if not media_url:
                continue
            if proto == 'hls':
                m3u8_formats = self._extract_m3u8_formats(
                    media_url, media_id, 'mp4', 'm3u8' if is_live else 'm3u8_native',
                    m3u8_id='hls', fatal=False, headers=self._MANIFEST_HEADERS)
                for f in m3u8_formats:
                    f.setdefault('http_headers', {}).update(self._MANIFEST_HEADERS)
                    formats.append(f)
            else:
                formats.extend(self._extract_mpd_formats(
                    media_url, media_id, mpd_id='dash', fatal=False,
                    headers=self._MANIFEST_HEADERS))
        self._sort_formats(formats)

        return {
            'id': media_id,
            'display_id': display_id,
            'title': title,
            'formats': formats,
            'thumbnail': video_data.get('thumbnailUrl'),
            'description': video_data.get('description'),
            'duration': int_or_none(video_data.get('duration')),
            'tags': video_data.get('tags'),
            'is_live': is_live,
        }