# coding=utf-8

# Author: Nic Wolfe <nic@wolfeden.ca>
# URL: https://sickrage.github.io
#
# This file is part of SickRage.
#
# SickRage 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.
#
# SickRage 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 SickRage. If not, see <http://www.gnu.org/licenses/>.

from __future__ import print_function, unicode_literals

import socket

from libgrowl import gntp

import sickbeard
from sickbeard import common, logger
from sickrage.helper.exceptions import ex


class Notifier(object):

    def test_notify(self, host, password):
        self._sendRegistration(host, password, 'Test')
        return self._sendGrowl("Test Growl", "Testing Growl settings from SickRage", "Test", host, password,
                               force=True)

    def notify_snatch(self, ep_name):
        if sickbeard.GROWL_NOTIFY_ONSNATCH:
            self._sendGrowl(common.notifyStrings[common.NOTIFY_SNATCH], ep_name)

    def notify_download(self, ep_name):
        if sickbeard.GROWL_NOTIFY_ONDOWNLOAD:
            self._sendGrowl(common.notifyStrings[common.NOTIFY_DOWNLOAD], ep_name)

    def notify_subtitle_download(self, ep_name, lang):
        if sickbeard.GROWL_NOTIFY_ONSUBTITLEDOWNLOAD:
            self._sendGrowl(common.notifyStrings[common.NOTIFY_SUBTITLE_DOWNLOAD], ep_name + ": " + lang)

    def notify_git_update(self, new_version="??"):
        update_text = common.notifyStrings[common.NOTIFY_GIT_UPDATE_TEXT]
        title = common.notifyStrings[common.NOTIFY_GIT_UPDATE]
        self._sendGrowl(title, update_text + new_version)

    def notify_login(self, ipaddress=""):
        update_text = common.notifyStrings[common.NOTIFY_LOGIN_TEXT]
        title = common.notifyStrings[common.NOTIFY_LOGIN]
        self._sendGrowl(title, update_text.format(ipaddress))

    def _send_growl(self, options, message=None):

        # Send Notification
        notice = gntp.GNTPNotice()

        # Required
        notice.add_header('Application-Name', options['app'])
        notice.add_header('Notification-Name', options['name'])
        notice.add_header('Notification-Title', options['title'])

        if options['password']:
            notice.set_password(options['password'])

        # Optional
        if options['sticky']:
            notice.add_header('Notification-Sticky', options['sticky'])
        if options['priority']:
            notice.add_header('Notification-Priority', options['priority'])
        if options['icon']:
            notice.add_header('Notification-Icon', sickbeard.LOGO_URL)

        if message:
            notice.add_header('Notification-Text', message)

        response = self._send(options['host'], options['port'], notice.encode(), options['debug'])
        return True if isinstance(response, gntp.GNTPOK) else False

    @staticmethod
    def _send(host, port, data, debug=False):
        if debug:
            print('<Sending>\n', data, '\n</Sending>')

        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.connect((host, port))
        s.send(data)
        response = gntp.parse_gntp(s.recv(1024))
        s.close()

        if debug:
            print('<Received>\n', response, '\n</Received>')

        return response

    def _sendGrowl(self, title="SickRage Notification", message=None, name=None, host=None, password=None,
                   force=False):
        if not sickbeard.USE_GROWL and not force:
            return False

        if name is None:
            name = title

        if host is None:
            hostParts = sickbeard.GROWL_HOST.split(':')
        else:
            hostParts = host.split(':')

        if len(hostParts) != 2 or hostParts[1] == '':
            port = 23053
        else:
            port = int(hostParts[1])

        growlHosts = [(hostParts[0], port)]

        opts = {
            'name': name,
            'title': title,
            'app': 'SickRage',
            'sticky': None,
            'priority': None,
            'debug': False
        }

        if password is None:
            opts['password'] = sickbeard.GROWL_PASSWORD
        else:
            opts['password'] = password

        opts['icon'] = True

        for pc in growlHosts:
            opts['host'] = pc[0]
            opts['port'] = pc[1]
            logger.log("GROWL: Sending message '" + message + "' to " + opts['host'] + ":" + str(opts['port']), logger.DEBUG)
            try:
                if self._send_growl(opts, message):
                    return True
                else:
                    if self._sendRegistration(host, password, 'Sickbeard'):
                        return self._send_growl(opts, message)
                    else:
                        return False
            except Exception as e:
                logger.log("GROWL: Unable to send growl to " + opts['host'] + ":" + str(opts['port']) + " - " + ex(e), logger.WARNING)
                return False

    def _sendRegistration(self, host=None, password=None, name='SickRage Notification'):
        opts = {}

        if host is None:
            hostParts = sickbeard.GROWL_HOST.split(':')
        else:
            hostParts = host.split(':')

        if len(hostParts) != 2 or hostParts[1] == '':
            port = 23053
        else:
            port = int(hostParts[1])

        opts['host'] = hostParts[0]
        opts['port'] = port

        if password is None:
            opts['password'] = sickbeard.GROWL_PASSWORD
        else:
            opts['password'] = password

        opts['app'] = 'SickRage'
        opts['debug'] = False

        # Send Registration
        register = gntp.GNTPRegister()
        register.add_header('Application-Name', opts['app'])
        register.add_header('Application-Icon', sickbeard.LOGO_URL)

        register.add_notification('Test', True)
        register.add_notification(common.notifyStrings[common.NOTIFY_SNATCH], True)
        register.add_notification(common.notifyStrings[common.NOTIFY_DOWNLOAD], True)
        register.add_notification(common.notifyStrings[common.NOTIFY_GIT_UPDATE], True)

        if opts['password']:
            register.set_password(opts['password'])

        try:
            return self._send(opts['host'], opts['port'], register.encode(), opts['debug'])
        except Exception as e:
            logger.log("GROWL: Unable to send growl to " + opts['host'] + ":" + str(opts['port']) + " - " + ex(e), logger.WARNING)
            return False
