# -*- coding: utf-8 -*-

import re

from pyload.plugin.Captcha import Captcha
from pyload.utils import json_loads


class AdYouLike(Captcha):
    __name__    = "AdYouLike"
    __type__    = "captcha"
    __version__ = "0.05"

    __description__ = """AdYouLike captcha service plugin"""
    __license__     = "GPLv3"
    __authors__     = [("Walter Purcaro", "vuolter@gmail.com")]


    AYL_PATTERN      = r'Adyoulike\.create\s*\((.+?)\)'
    CALLBACK_PATTERN = r'(Adyoulike\.g\._jsonp_\d+)'


    def detect_key(self, html=None):
        if not html:
            if hasattr(self.plugin, "html") and self.plugin.html:
                html = self.plugin.html
            else:
                errmsg = _("AdYouLike html not found")
                self.plugin.fail(errmsg)
                raise TypeError(errmsg)

        m = re.search(self.AYL_PATTERN, html)
        n = re.search(self.CALLBACK_PATTERN, html)
        if m and n:
            self.key = (m.group(1).strip(), n.group(1).strip())
            self.logDebug("Ayl|callback: %s | %s" % self.key)
            return self.key   #: key is the tuple(ayl, callback)
        else:
            self.logDebug("Ayl or callback not found")
            return None


    def challenge(self, key=None, html=None):
        if not key:
            if self.detect_key(html):
                key = self.key
            else:
                errmsg = _("AdYouLike key not found")
                self.plugin.fail(errmsg)
                raise TypeError(errmsg)

        ayl, callback = key

        # {"adyoulike":{"key":"P~zQ~O0zV0WTiAzC-iw0navWQpCLoYEP"},
        # "all":{"element_id":"ayl_private_cap_92300","lang":"fr","env":"prod"}}
        ayl = json_loads(ayl)

        html = self.plugin.req.load("http://api-ayl.appspot.com/challenge",
                                    get={'key'     : ayl['adyoulike']['key'],
                                         'env'     : ayl['all']['env'],
                                         'callback': callback})
        try:
            challenge = json_loads(re.search(callback + r'\s*\((.+?)\)', html).group(1))

        except AttributeError:
            errmsg = _("AdYouLike challenge pattern not found")
            self.plugin.fail(errmsg)
            raise AttributeError(errmsg)

        self.logDebug("Challenge: %s" % challenge)

        return self.result(ayl, challenge), challenge


    def result(self, server, challenge):
        # Adyoulike.g._jsonp_5579316662423138
        # ({"translations":{"fr":{"instructions_visual":"Recopiez « Soonnight » ci-dessous :"}},
        # "site_under":true,"clickable":true,"pixels":{"VIDEO_050":[],"DISPLAY":[],"VIDEO_000":[],"VIDEO_100":[],
        # "VIDEO_025":[],"VIDEO_075":[]},"medium_type":"image/adyoulike",
        # "iframes":{"big":"<iframe src=\"http://www.soonnight.com/campagn.html\" scrolling=\"no\"
        # height=\"250\" width=\"300\" frameborder=\"0\"></iframe>"},"shares":{},"id":256,
        # "token":"e6QuI4aRSnbIZJg02IsV6cp4JQ9~MjA1","formats":{"small":{"y":300,"x":0,"w":300,"h":60},
        # "big":{"y":0,"x":0,"w":300,"h":250},"hover":{"y":440,"x":0,"w":300,"h":60}},
        # "tid":"SqwuAdxT1EZoi4B5q0T63LN2AkiCJBg5"})

        if isinstance(server, basestring):
            server = json_loads(server)

        if isinstance(challenge, basestring):
            challenge = json_loads(challenge)

        try:
            instructions_visual = challenge['translations'][server['all']['lang']]['instructions_visual']
            result = re.search(u'«(.+?)»', instructions_visual).group(1).strip()

        except AttributeError:
            errmsg = _("AdYouLike result not found")
            self.plugin.fail(errmsg)
            raise AttributeError(errmsg)

        result = {'_ayl_captcha_engine' : "adyoulike",
                  '_ayl_env'            : server['all']['env'],
                  '_ayl_tid'            : challenge['tid'],
                  '_ayl_token_challenge': challenge['token'],
                  '_ayl_response'       : response}

        self.logDebug("Result: %s" % result)

        return result