# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: http://code.google.com/p/sickbeard/
#
# This file is part of SickGear.
#
# SickGear is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# SickGear is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with SickGear.  If not, see <http://www.gnu.org/licenses/>.



import httplib
import datetime
import re

import sickbeard

from base64 import standard_b64encode
import xmlrpclib

from sickbeard.providers.generic import GenericProvider

from sickbeard import logger, helpers

from common import Quality


def sendNZB(nzb, proper=False):
    addToTop = False
    nzbgetprio = 0
    
    if sickbeard.NZBGET_USE_HTTPS:
        nzbgetXMLrpc = "https://%(username)s:%(password)s@%(host)s/xmlrpc"
    else:
        nzbgetXMLrpc = "http://%(username)s:%(password)s@%(host)s/xmlrpc"

    if sickbeard.NZBGET_HOST == None:
        logger.log(u"No NZBget host found in configuration. Please configure it.", logger.ERROR)
        return False

    url = nzbgetXMLrpc % {"host": sickbeard.NZBGET_HOST, "username": sickbeard.NZBGET_USERNAME,
                          "password": sickbeard.NZBGET_PASSWORD}

    nzbGetRPC = xmlrpclib.ServerProxy(url)
    try:
        if nzbGetRPC.writelog("INFO", "SickGear connected to drop off %s any moment now." % (nzb.name + ".nzb")):
            logger.log(u"Successfully connected to NZBget", logger.DEBUG)
        else:
            logger.log(u"Successfully connected to NZBget, but unable to send a message", logger.ERROR)

    except httplib.socket.error:
        logger.log(
            u"Please check your NZBget host and port (if it is running). NZBget is not responding to this combination",
            logger.ERROR)
        return False

    except xmlrpclib.ProtocolError as e:
        if (e.errmsg == "Unauthorized"):
            logger.log(u"NZBget username or password is incorrect.", logger.ERROR)
        else:
            logger.log(u"Protocol Error: " + e.errmsg, logger.ERROR)
        return False

    dupekey = ""
    dupescore = 0
    # if it aired recently make it high priority and generate DupeKey/Score
    for curEp in nzb.episodes:
        if dupekey == "":
            if curEp.show.indexer == 1:
                dupekey = "SickGear-" + str(curEp.show.indexerid)
            elif curEp.show.indexer == 2:
                dupekey = "SickGear-tvr" + str(curEp.show.indexerid)
        dupekey += "-" + str(curEp.season) + "." + str(curEp.episode)
        if datetime.date.today() - curEp.airdate <= datetime.timedelta(days=7):
            addToTop = True
            nzbgetprio = sickbeard.NZBGET_PRIORITY

    if nzb.quality != Quality.UNKNOWN:
        dupescore = nzb.quality * 100
    if proper:
        dupescore += 10

    nzbcontent64 = None
    if nzb.resultType == "nzbdata":
        data = nzb.extraInfo[0]
        nzbcontent64 = standard_b64encode(data)

    logger.log(u"Sending NZB to NZBGet: %s" % nzb.name)
    logger.log(u"NZBGet URL: " + url, logger.DEBUG)

    try:
        # Find out if nzbget supports priority (Version 9.0+), old versions beginning with a 0.x will use the old command
        nzbget_version_str = nzbGetRPC.version()
        nzbget_version = helpers.tryInt(nzbget_version_str[:nzbget_version_str.find(".")])
        if nzbget_version == 0:
            if nzbcontent64 is not None:
                nzbget_result = nzbGetRPC.append(nzb.name + ".nzb", sickbeard.NZBGET_CATEGORY, addToTop, nzbcontent64)
            else:
                if nzb.resultType == "nzb":
                    genProvider = GenericProvider("")
                    data = genProvider.getURL(nzb.url)
                    if (data == None):
                        return False
                    nzbcontent64 = standard_b64encode(data)
                nzbget_result = nzbGetRPC.append(nzb.name + ".nzb", sickbeard.NZBGET_CATEGORY, addToTop, nzbcontent64)
        elif nzbget_version == 12:
            if nzbcontent64 is not None:
                nzbget_result = nzbGetRPC.append(nzb.name + ".nzb", sickbeard.NZBGET_CATEGORY, nzbgetprio, False,
                                                 nzbcontent64, False, dupekey, dupescore, "score")
            else:
                nzbget_result = nzbGetRPC.appendurl(nzb.name + ".nzb", sickbeard.NZBGET_CATEGORY, nzbgetprio, False,
                                                    nzb.url, False, dupekey, dupescore, "score")
        # v13+ has a new combined append method that accepts both (url and content)
        # also the return value has changed from boolean to integer 
        # (Positive number representing NZBID of the queue item. 0 and negative numbers represent error codes.)
        elif nzbget_version >= 13:
            nzbget_result = True if nzbGetRPC.append(nzb.name + ".nzb", nzbcontent64 if nzbcontent64 is not None else nzb.url,
                                                     sickbeard.NZBGET_CATEGORY, nzbgetprio, False, False, dupekey, dupescore,
                                                     "score") > 0 else False
        else:
            if nzbcontent64 is not None:
                nzbget_result = nzbGetRPC.append(nzb.name + ".nzb", sickbeard.NZBGET_CATEGORY, nzbgetprio, False,
                                                 nzbcontent64)
            else:
                nzbget_result = nzbGetRPC.appendurl(nzb.name + ".nzb", sickbeard.NZBGET_CATEGORY, nzbgetprio, False,
                                                    nzb.url)

        if nzbget_result:
            logger.log(u"NZB sent to NZBget successfully", logger.DEBUG)
            return True
        else:
            logger.log(u"NZBget could not add %s to the queue" % (nzb.name + ".nzb"), logger.ERROR)
            return False
    except:
        logger.log(u"Connect Error to NZBget: could not add %s to the queue" % (nzb.name + ".nzb"), logger.ERROR)
        return False