from __future__ import unicode_literals

import re

from .common import InfoExtractor
from .kaltura import KalturaIE
from ..utils import (
    HEADRequest,
    remove_start,
    sanitized_Request,
    smuggle_url,
    urlencode_postdata,
)


class GDCVaultIE(InfoExtractor):
    _VALID_URL = (
        r"https?://(?:www\.)?gdcvault\.com/play/(?P<id>\d+)(?:/(?P<name>[\w-]+))?"
    )
    _NETRC_MACHINE = "gdcvault"
    _TESTS = [
        {
            "url": "http://www.gdcvault.com/play/1019721/Doki-Doki-Universe-Sweet-Simple",
            "md5": "7ce8388f544c88b7ac11c7ab1b593704",
            "info_dict": {
                "id": "201311826596_AWNY",
                "display_id": "Doki-Doki-Universe-Sweet-Simple",
                "ext": "mp4",
                "title": "Doki-Doki Universe: Sweet, Simple and Genuine (GDC Next 10)",
            },
        },
        {
            "url": "http://www.gdcvault.com/play/1015683/Embracing-the-Dark-Art-of",
            "info_dict": {
                "id": "201203272_1330951438328RSXR",
                "display_id": "Embracing-the-Dark-Art-of",
                "ext": "flv",
                "title": "Embracing the Dark Art of Mathematical Modeling in AI",
            },
            "params": {
                "skip_download": True,  # Requires rtmpdump
            },
        },
        {
            "url": "http://www.gdcvault.com/play/1015301/Thexder-Meets-Windows-95-or",
            "md5": "a5eb77996ef82118afbbe8e48731b98e",
            "info_dict": {
                "id": "1015301",
                "display_id": "Thexder-Meets-Windows-95-or",
                "ext": "flv",
                "title": "Thexder Meets Windows 95, or Writing Great Games in the Windows 95 Environment",
            },
            "skip": "Requires login",
        },
        {
            "url": "http://gdcvault.com/play/1020791/",
            "only_matching": True,
        },
        {
            # Hard-coded hostname
            "url": "http://gdcvault.com/play/1023460/Tenacious-Design-and-The-Interface",
            "md5": "a8efb6c31ed06ca8739294960b2dbabd",
            "info_dict": {
                "id": "840376_BQRC",
                "ext": "mp4",
                "display_id": "Tenacious-Design-and-The-Interface",
                "title": "Tenacious Design and The Interface of 'Destiny'",
            },
        },
        {
            # Multiple audios
            "url": "http://www.gdcvault.com/play/1014631/Classic-Game-Postmortem-PAC",
            "info_dict": {
                "id": "12396_1299111843500GMPX",
                "ext": "mp4",
                "title": "How to Create a Good Game - From My Experience of Designing Pac-Man",
            },
            # 'params': {
            #     'skip_download': True,  # Requires rtmpdump
            #     'format': 'jp',  # The japanese audio
            # }
        },
        {
            # gdc-player.html
            "url": "http://www.gdcvault.com/play/1435/An-American-engine-in-Tokyo",
            "info_dict": {
                "id": "9350_1238021887562UHXB",
                "display_id": "An-American-engine-in-Tokyo",
                "ext": "mp4",
                "title": "An American Engine in Tokyo:/nThe collaboration of Epic Games and Square Enix/nFor THE LAST REMINANT",
            },
        },
        {
            # Kaltura Embed
            "url": "https://www.gdcvault.com/play/1026180/Mastering-the-Apex-of-Scaling",
            "info_dict": {
                "id": "0_h1fg8j3p",
                "ext": "mp4",
                "title": "Mastering the Apex of Scaling Game Servers (Presented by Multiplay)",
                "timestamp": 1554401811,
                "upload_date": "20190404",
                "uploader_id": "joe@blazestreaming.com",
            },
            "params": {
                "format": "mp4-408",
            },
        },
        {
            # Kaltura embed, whitespace between quote and embedded URL in iframe's src
            "url": "https://www.gdcvault.com/play/1025699",
            "info_dict": {
                "id": "0_zagynv0a",
                "ext": "mp4",
                "title": "Tech Toolbox",
                "upload_date": "20190408",
                "uploader_id": "joe@blazestreaming.com",
                "timestamp": 1554764629,
            },
            "params": {
                "skip_download": True,
            },
        },
        {
            # HTML5 video
            "url": "http://www.gdcvault.com/play/1014846/Conference-Keynote-Shigeru",
            "only_matching": True,
        },
    ]

    def _login(self, webpage_url, display_id):
        username, password = self._get_login_info()
        if username is None or password is None:
            self.report_warning(
                "It looks like "
                + webpage_url
                + " requires a login. Try specifying a username and password and try again."
            )
            return None

        mobj = re.match(r"(?P<root_url>https?://.*?/).*", webpage_url)
        login_url = mobj.group("root_url") + "api/login.php"
        logout_url = mobj.group("root_url") + "logout"

        login_form = {
            "email": username,
            "password": password,
        }

        request = sanitized_Request(login_url, urlencode_postdata(login_form))
        request.add_header("Content-Type", "application/x-www-form-urlencoded")
        self._download_webpage(request, display_id, "Logging in")
        start_page = self._download_webpage(
            webpage_url, display_id, "Getting authenticated video page"
        )
        self._download_webpage(logout_url, display_id, "Logging out")

        return start_page

    def _real_extract(self, url):
        video_id, name = re.match(self._VALID_URL, url).groups()
        display_id = name or video_id

        webpage_url = "http://www.gdcvault.com/play/" + video_id
        start_page = self._download_webpage(webpage_url, display_id)

        direct_url = self._search_regex(
            r's1\.addVariable\("file",\s*encodeURIComponent\("(/[^"]+)"\)\);',
            start_page,
            "url",
            default=None,
        )
        if direct_url:
            title = self._html_search_regex(
                r"<td><strong>Session Name:?</strong></td>\s*<td>(.*?)</td>",
                start_page,
                "title",
            )
            video_url = "http://www.gdcvault.com" + direct_url
            # resolve the url so that we can detect the correct extension
            video_url = self._request_webpage(HEADRequest(video_url), video_id).geturl()

            return {
                "id": video_id,
                "display_id": display_id,
                "url": video_url,
                "title": title,
            }

        embed_url = KalturaIE._extract_url(start_page)
        if embed_url:
            embed_url = smuggle_url(embed_url, {"source_url": url})
            ie_key = "Kaltura"
        else:
            PLAYER_REGEX = r'<iframe src="(?P<xml_root>.+?)/(?:gdc-)?player.*?\.html.*?".*?</iframe>'

            xml_root = self._html_search_regex(
                PLAYER_REGEX, start_page, "xml root", default=None
            )
            if xml_root is None:
                # Probably need to authenticate
                login_res = self._login(webpage_url, display_id)
                if login_res is None:
                    self.report_warning("Could not login.")
                else:
                    start_page = login_res
                    # Grab the url from the authenticated page
                    xml_root = self._html_search_regex(
                        PLAYER_REGEX, start_page, "xml root"
                    )

            xml_name = self._html_search_regex(
                r'<iframe src=".*?\?xml(?:=|URL=xml/)(.+?\.xml).*?".*?</iframe>',
                start_page,
                "xml filename",
                default=None,
            )
            if not xml_name:
                info = self._parse_html5_media_entries(url, start_page, video_id)[0]
                info.update(
                    {
                        "title": remove_start(
                            self._search_regex(
                                r">Session Name:\s*<.*?>\s*<td>(.+?)</td>",
                                start_page,
                                "title",
                                default=None,
                            )
                            or self._og_search_title(start_page, default=None),
                            "GDC Vault - ",
                        ),
                        "id": video_id,
                        "display_id": display_id,
                    }
                )
                return info
            embed_url = "%s/xml/%s" % (xml_root, xml_name)
            ie_key = "DigitallySpeaking"

        return {
            "_type": "url_transparent",
            "id": video_id,
            "display_id": display_id,
            "url": embed_url,
            "ie_key": ie_key,
        }
