# -*- coding: utf-8 -*-
'''
	feedgen.ext.torrent
	~~~~~~~~~~~~~~~~~~~

	Extends the FeedGenerator to produce torrent feeds.

	:copyright: 2016, Raspbeguy <raspbeguy@hashtagueule.fr>

	:license: FreeBSD and LGPL, see license.* for more details.
'''

from lxml import etree
from feedgen.ext.base import BaseExtension,BaseEntryExtension

TORRENT_NS = 'http://xmlns.ezrss.it/0.1/dtd/'

class TorrentExtension(BaseExtension):
	'''FeedGenerator extension for torrent feeds.
	'''
	def extend_ns(self):
		return {'torrent' : TORRENT_NS}


class TorrentEntryExtension(BaseEntryExtension):
	'''FeedEntry extention for torrent feeds
	'''
	def __init__(self):
		self.__torrent_filename = None
		self.__torrent_infohash = None
		self.__torrent_contentlength = None
		self.__torrent_seeds = None
		self.__torrent_peers = None
		self.__torrent=verified = None
	

	def extend_rss(self, entry):
		'''Add additional fields to an RSS item.

		:param feed: The RSS item XML element to use.
		'''
		if self.__torrent_filename:
			filename = etree.SubElement(entry, '{%s}filename' % TORRENT_NS)
			filename.text = self.__torrent_filename

		if self.__torrent_contentlength:
			contentlength = etree.SubElement(entry, '{%s}contentlength' % TORRENT_NS)
			contentlength.text = self.__torrent_contentlength

		if self.__torrent_infohash:
			infohash = etree.SubElement(entry, '{%s}infohash' % TORRENT_NS)
			infohash.text = self.__torrent_infohash
			magnet = etree.SubElement(entry, '{%s}magneturi' % TORRENT_NS)
			magnet.text = 'magnet:?xt=urn:btih:' + self.__torrent_infohash

		if self.__torrent_seeds:
			seeds = etree.SubElement(entry, '{%s}seed' % TORRENT_NS)
			seeds.text = self.__torrent_seeds

		if self.__torrent_peers:
			peers = etree.SubElement(entry, '{%s}peers' % TORRENT_NS)
			peers.text = self.__torrent_peers

		if self.__torrent_seeds:
			verified = etree.SubElement(entry, '{%s}verified' % TORRENT_NS)
			verified.text = self.__torrent_verified


	def filename(self, torrent_filename=None):
		'''Get or set the name of the torrent file.

		:param torrent_filename: The name of the torrent file.
		:returns: The name of the torrent file.
		'''
		if not torrent_filename is None:
			self.__torrent_filename = torrent_filename
		return self.__torrent_filename

	def infohash (self, torrent_infohash=None):
		'''Get or set the hash of the target file.

		:param torrent_infohash: The target file hash.
		:returns: The target hash file.
		'''
		if not torrent_infohash is None:
			self.__torrent_infohash = torrent_infohash
		return self.__torrent_infohash

	def contentlength (self, torrent_contentlength=None):
		'''Get or set the size of the target file.

		:param torrent_contentlength: The target file size.
		:returns: The target file size.
		'''
		if not torrent_contentlength is None:
			self.__torrent_contentlength = torrent_contentlength
		return self.__torrent_contentlength

	def seeds (self, torrent_seeds=None):
		'''Get or set the number of seeds.

		:param torrent_seeds: The seeds number.
		:returns: The seeds number.
		'''
		if not torrent_seeds is None:
			self.__torrent_seeds = torrent_seeds
		return self.__torrent_seeds

	def peers (self, torrent_peers=None):
		'''Get or set the number od peers

		:param torrent_infohash: The peers number.
		:returns: The peers number.
		'''
		if not torrent_peers is None:
			self.__torrent_peers = torrent_peers
		return self.__torrent_peers

	def verified (self, torrent_verified=None):
		'''Get or set the number of verified peers.

		:param torrent_infohash: The verified peers number.
		:returns: The verified peers number.
		'''
		if not torrent_verified is None:
			self.__torrent_verified = torrent_verified
		return self.__torrent_verified