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

import re
import urllib

import BeautifulSoup

from ..captcha.ReCaptcha import ReCaptcha
from ..internal.SimpleHoster import SimpleHoster


class ZippyshareCom(SimpleHoster):
    __name__ = "ZippyshareCom"
    __type__ = "hoster"
    __version__ = "0.98"
    __status__ = "testing"

    __pattern__ = r'https?://(?P<HOST>www\d{0,3}\.zippyshare\.com)/(?:[vd]/|view\.jsp.*key=)(?P<KEY>[\w^_]+)'
    __config__ = [("activated", "bool", "Activated", True),
                  ("use_premium", "bool", "Use premium account if available", True),
                  ("fallback", "bool", "Fallback to free download if premium fails", True),
                  ("chk_filesize", "bool", "Check file size", True),
                  ("max_wait", "int", "Reconnect if waiting time is greater than minutes", 10)]

    __description__ = """Zippyshare.com hoster plugin"""
    __license__ = "GPLv3"
    __authors__ = [("Walter Purcaro", "vuolter@gmail.com"),
                   ("sebdelsol", "seb.morin@gmail.com"),
                   ("GammaC0de", "nitzo2001[AT]yahoo[DOT]com")]

    COOKIES = [("zippyshare.com", "ziplocale", "en")]

    URL_REPLACEMENTS = [(__pattern__ + ".*", r'http://\g<HOST>/v/\g<KEY>/file.html')]

    NAME_PATTERN = r'(?:<title>Zippyshare.com - |"/)(?P<N>[^/]+)(?:</title>|";)'
    SIZE_PATTERN = r'>Size:.+?">(?P<S>[\d.,]+) (?P<U>[\w^_]+)'
    OFFLINE_PATTERN = r'does not exist (anymore )?on this server<'
    TEMP_OFFLINE_PATTERN = r'^unmatchable$'

    LINK_PATTERN = r"document.location = '(.+?)'"

    def setup(self):
        self.chunk_limit = -1
        self.multiDL = True
        self.resume_download = True

    def handle_free(self, pyfile):
        self.captcha = ReCaptcha(pyfile)
        captcha_key = self.captcha.detect_key()

        if captcha_key:
            try:
                self.link = re.search(self.LINK_PATTERN, self.data)
                self.captcha.challenge()

            except Exception, e:
                self.error(e)

        else:
            self.link = self.fixurl(self.get_link())
            if ".com/pd/" in self.link:
                self.load(self.link)
                self.link = self.link.replace(".com/pd/", ".com/d/")

        if self.link and pyfile.name == "file.html":
            pyfile.name = urllib.unquote(self.link.split('/')[-1])

    def get_link(self):
        #: Get all the scripts inside the html body
        soup = BeautifulSoup.BeautifulSoup(self.data)
        scripts = [
            s.getText() for s in soup.body.findAll(
                'script',
                type='text/javascript') if "('dlbutton').href =" in s.getText()]

        #: Emulate a document in JS
        inits = ['''
                var document = {}
                document.getElementById = function(x) {
                    if (!this.hasOwnProperty(x)) {
                        this[x] = {getAttribute : function(x) { return this[x] } }
                    }
                    return this[x]
                }
                ''']

        #: inits is meant to be populated with the initialization of all the DOM elements found in the scripts
        eltRE = r'getElementById\([\'"](.+?)[\'"]\)(\.)?(getAttribute\([\'"])?(\w+)?([\'"]\))?'
        for m in re.findall(eltRE, ' '.join(scripts)):
            JSid, JSattr = m[0], m[3]
            values = filter(None, (elt.get(JSattr, None)
                                   for elt in soup.findAll(id=JSid)))
            if values:
                inits.append('document.getElementById("%s")["%s"] = "%s"' % (
                    JSid, JSattr, values[-1]))

        #: Add try/catch in JS to handle deliberate errors
        scripts = ['\n'.join(('try{', script, '} catch(err){}'))
                   for script in scripts]

        #: Get the file's url by evaluating all the scripts
        scripts = inits + scripts + ['document.dlbutton.href']

        return self.js.eval('\n'.join(scripts))
