# coding: utf-8
from __future__ import unicode_literals

import re
import hashlib

from .common import InfoExtractor
from ..utils import (
    ExtractorError,
    unified_strdate,
)


class WatIE(InfoExtractor):
    _VALID_URL = r'http://www\.wat\.tv/video/(?P<display_id>.*)-(?P<short_id>.*?)_.*?\.html'
    IE_NAME = 'wat.tv'
    _TESTS = [
        {
            'url': 'http://www.wat.tv/video/lady-gaga-but-beautiful-2014-72611_2ey39_.html',
            'md5': 'b7a3a5d2af2c7f16551265ef8929d8e5',
            'info_dict': {
                'id': '18879-but-beautiful',
                'display_id': '18879-but-beautiful',
                'ext': 'mp4',
                'title': 'But Beautiful - Lady Gaga - Universal Music France',
                'description': 'md5:7e0bff92535f1e5912d61dffe9845aa7'
            },
        },
        {
            'url': 'http://www.wat.tv/video/anna-bergendahl-for-you-2015-7dvjn_76lkz_.html',
            'md5': '159cda7568b9fc1e5e3de6aeca5d4bfc',
            'info_dict': {
                'id': '4555-for-you-remix-lyric-video',
                'display_id': '4555-for-you-remix-lyric-video',
                'ext': 'mp4',
                'title': 'For You - Anna Bergendahl - Universal Music France',
                'description': 'md5:1bbdde8d44751f43367ba68e8b9966a6'
            },
        },
        {
            'url': 'http://www.wat.tv/video/david-guetta-titanium-feat-sia-4v6p5_4v69t_.html',
            'md5': '5c31a70358cd5019595297a26390cd46',
            'info_dict': {
                'id': 'qzkfx3',
                'display_id': 'qzkfx3',
                'ext': 'mp4',
                'title': 'David Guetta - Titanium feat. Sia (Clip)',
                'description': 'md5:bb28f8c4a84586e2eb1c3d092ab94f4b',
                'upload_date': '20111220'
            },
        },
        {
            'url': 'http://www.wat.tv/video/soupe-figues-l-orange-aux-epices-6z1uz_2hvf7_.html',
            'md5': 'ce70e9223945ed26a8056d413ca55dc9',
            'info_dict': {
                'id': '11713067',
                'display_id': 'soupe-figues-l-orange-aux-epices',
                'ext': 'mp4',
                'title': 'Soupe de figues à l\'orange et aux épices',
                'description': 'Retrouvez l\'émission "Petits plats en équilibre", diffusée le 18 août 2014.',
                'upload_date': '20140819',
                'duration': 120,
            },
        },
        {
            'url': 'http://www.wat.tv/video/gregory-lemarchal-voix-ange-6z1v7_6ygkj_.html',
            'md5': 'fbc84e4378165278e743956d9c1bf16b',
            'info_dict': {
                'id': '11713075',
                'display_id': 'gregory-lemarchal-voix-ange',
                'ext': 'mp4',
                'title': 'Grégory Lemarchal, une voix d\'ange depuis 10 ans (1/3)',
                'description': 'md5:b7a849cf16a2b733d9cd10c52906dee3',
                'upload_date': '20140816',
                'duration': 2910,
            },
            'skip': "Ce contenu n'est pas disponible pour l'instant.",
        },
    ]

    def download_video_info(self, real_id):
        # 'contentv4' is used in the website, but it also returns the related
        # videos, we don't need them
        info = self._download_json('http://www.wat.tv/interface/contentv3/' + real_id, real_id)
        return info['media']

    def _real_extract(self, url):
        def real_id_for_chapter(chapter):
            return chapter['tc_start'].split('-')[0]
        mobj = re.match(self._VALID_URL, url)
        short_id = mobj.group('short_id')
        display_id = mobj.group('display_id')
        webpage = self._download_webpage(url, display_id or short_id)
        srcIFrame = self._html_search_regex(r'<iframe .* src="(.*?)(.iframe)?"', webpage, 'srcIFrame')
        if (srcIFrame.__contains__("universalmusic")):
            #should redirect to universalmusicfrance extractor
            return self.url_result(srcIFrame)
        elif (srcIFrame.__contains__("ultimedia")):
            mobj = re.match(r'http://www\.ultimedia\.com/deliver/musique/iframe/mdtk/[0-9]*/zone/[0-9]/article/(?P<article_id>.*?)/.*', srcIFrame)
            article_id = mobj.group('article_id')
            ultimedia_url = "http://www.ultimedia.com/default/index/videomusic/id/" + article_id
            #should redirect to ultimedia extractor
            return self.url_result(ultimedia_url)
        else:
            real_id = self._search_regex(r'xtpage = ".*-(.*?)";', webpage, 'real id')

            video_info = self.download_video_info(real_id)

            error_desc = video_info.get('error_desc')
            if error_desc:
                raise ExtractorError(
                    '%s returned error: %s' % (self.IE_NAME, error_desc), expected=True)

            geo_list = video_info.get('geoList')
            country = geo_list[0] if geo_list else ''

            chapters = video_info['chapters']
            first_chapter = chapters[0]
            files = video_info['files']
            first_file = files[0]

            if real_id_for_chapter(first_chapter) != real_id:
                self.to_screen('Multipart video detected')
                chapter_urls = []
                for chapter in chapters:
                    chapter_id = real_id_for_chapter(chapter)
                    # Yes, when we this chapter is processed by WatIE,
                    # it will download the info again
                    chapter_info = self.download_video_info(chapter_id)
                    chapter_urls.append(chapter_info['url'])
                entries = [self.url_result(chapter_url) for chapter_url in chapter_urls]
                return self.playlist_result(entries, real_id, video_info['title'])

            upload_date = None
            if 'date_diffusion' in first_chapter:
                upload_date = unified_strdate(first_chapter['date_diffusion'])
            # Otherwise we can continue and extract just one part, we have to use
            # the short id for getting the video url

            formats = [{
                'url': 'http://wat.tv/get/android5/%s.mp4' % real_id,
                'format_id': 'Mobile',
            }]

            fmts = [('SD', 'web')]
            if first_file.get('hasHD'):
                fmts.append(('HD', 'webhd'))

            def compute_token(param):
                timestamp = '%08x' % int(self._download_webpage(
                    'http://www.wat.tv/servertime', real_id,
                    'Downloading server time').split('|')[0])
                magic = '9b673b13fa4682ed14c3cfa5af5310274b514c4133e9b3a81e6e3aba009l2564'
                return '%s/%s' % (hashlib.md5((magic + param + timestamp).encode('ascii')).hexdigest(), timestamp)

            for fmt in fmts:
                webid = '/%s/%s' % (fmt[1], real_id)
                video_url = self._download_webpage(
                    'http://www.wat.tv/get%s?token=%s&getURL=1&country=%s' % (webid, compute_token(webid), country),
                    real_id,
                    'Downloading %s video URL' % fmt[0],
                    'Failed to download %s video URL' % fmt[0],
                    False)
                if not video_url:
                    continue
                formats.append({
                    'url': video_url,
                    'ext': 'mp4',
                    'format_id': fmt[0],
                })

            return {
                'id': real_id,
                'display_id': display_id,
                'title': first_chapter['title'],
                'thumbnail': first_chapter['preview'],
                'description': first_chapter['description'],
                'view_count': video_info['views'],
                'upload_date': upload_date,
                'duration': first_file['duration'],
                'formats': formats,
            }