###
# Copyright (c) 2008/2009, Lakin Wecker and Robert Brewer
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#   * Redistributions of source code must retain the above copyright notice,
#     this list of conditions, and the following disclaimer.
#   * Redistributions in binary form must reproduce the above copyright notice,
#     this list of conditions, and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#   * Neither the name of the author of this software nor the name of
#     contributors to this software may be used to endorse or promote products
#     derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

###

import supybot.log as log
import supybot.utils as utils
from supybot.commands import *
import supybot.plugins as plugins
import supybot.ircutils as ircutils
import supybot.callbacks as callbacks
from supybot.plugins.Insult import plugin as insult_p
from supybot.ircutils import isChannel

import urllib2, cookielib, sys
from urlparse import urljoin
import BeautifulSoup as BS
from BeautifulSoup import BeautifulSoup, NavigableString


class SupyTrac(callbacks.PluginRegexp):
    threaded = True
    regexps = [
        'ticketSnarfer', 'revisionSnarfer',
        'execSnarfer', 'wikiSnarfer',
    ]
    def __init__(self, irc):
        self.__parent = super(SupyTrac, self)
        self.__parent.__init__(irc)

        self.cookieJar = cookielib.CookieJar()
        self.urlOpener = urllib2.build_opener(
            urllib2.HTTPCookieProcessor(self.cookieJar))
        urllib2.install_opener(self.urlOpener)

    def getSoupFromTracUrl(self, url):
        flob = urllib2.urlopen(url)
        return BeautifulSoup(flob.read())
   
    def public_uri(self, channel, uri):
        """Return the full public URI for the given relative URI atoms."""
        base = self.registryValue('base', channel)
        result = urljoin(base, uri)
        log.info(result)
        return result

    def private_uri(self, channel, uri):
        """Return the full private URI for the given relative URI atoms."""
        base = self.registryValue('private-base', channel)
        if not base:
            base = self.registryValue('base', channel)
        result = urljoin(base, uri)
        log.info(result)
        return result

    def wikiSnarfer(self, irc, msg, match):
        r"(?:([a-zA-Z0-9\/_]+):)?wiki:([A-za-z0-9\/_]+)"
        channel = msg.args[0]
        if not irc.isChannel(channel):
            return
        g = list(match.groups())
        wikiPage = g.pop()
        if g:
            #TODO: allow a channel to link to multiple sites
            site = g[0]
        url = self.public_uri(channel, '/'.join(('wiki', wikiPage)))
        irc.reply(url, prefixNick=False)
    wikiSnarfer = urlSnarfer(wikiSnarfer)

    def ticketSnarfer(self, irc, msg, match):
        r"(?:([a-zA-Z0-9\/_]+):)?(?:#|\bticket[\s:])(\d{2,})\b"
        channel = msg.args[0]
        if not irc.isChannel(channel):
            return
        g = list(match.groups())
        ticketNumber = g.pop()
        if g:
            #TODO: allow a channel to link to multiple sites
            site = g[0]
        ticketURL = self.private_uri(channel, '/'.join(('ticket', ticketNumber)))
        soup = self.getSoupFromTracUrl(ticketURL)
        title = soup.findAll(attrs={'class': 'summary'})[0].string
        tag = soup.findAll(attrs={'class': 'status'})[0]
        status = tag.findChild('strong')
        status = status.string
        ticketURL = self.public_uri(channel, '/'.join(('ticket', ticketNumber)))
        irc.reply('%s - %s - %s' % (ticketURL, status, title), prefixNick=False)
    ticketSnarfer = urlSnarfer(ticketSnarfer)

    def revisionSnarfer(self, irc, msg, match):
        r"(?:([a-zA-Z0-9\/_]+):)?(?:\[\d{4,}\]|\b(?:r|changeset[\s:])(\d{3,})\b)"
        channel = msg.args[0]
        if not irc.isChannel(channel):
            return
        g = list(match.groups())
        revisionNumber = g.pop()
        if g:
            #TODO: allow a channel to link to multiple sites
            site = g[0]
        changesetURL = self.private_uri(channel, '/'.join(('changeset', revisionNumber)))
        soup = self.getSoupFromTracUrl(changesetURL)
        p = soup.findAll('dd', attrs={'class': 'message'})[0]
        message_tags = p.findAll(text=lambda text: isinstance(text, NavigableString))
        message = ''.join([tag for tag in message_tags]).replace('\n', ' ')
        author = soup.findAll('dd', attrs={'class': 'author'})[0].string
        
        changesetURL = self.public_uri(channel, '/'.join(('changeset', revisionNumber)))
        irc.reply('%s - %s - %s' % (changesetURL, author, message), prefixNick=False)
    revisionSnarfer = urlSnarfer(revisionSnarfer)

    def execSnarfer(self, irc, msg, match):
        r"(^>>> exec\()"
        irc.reply('TODO!')
    execSnarfer = urlSnarfer(execSnarfer)


Class = SupyTrac


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