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

# Nemubot is a smart and modulable IM bot.
# Copyright (C) 2012-2014  nemunaire
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import re

from exception import IRCException
import hooks
import message

class MessageHook(hooks.AbstractHook):

    """Class storing hook information, specialized for a generic Message"""

    def __init__(self, call, name=None, data=None, regexp=None,
                 channels=list(), server=None, mtimes=-1, end_call=None):

        hooks.AbstractHook.__init__(self, call=call, data=data,
                                    end_call=end_call, mtimes=mtimes)

        self.name = name
        self.regexp = regexp
        self.server = server
        self.channels = channels


    def match(self, msg, server=None):
        if not isinstance(msg, message.AbstractMessage):
            return True

        elif isinstance(msg, message.Command):
            return self.is_matching(msg.cmd, msg.to, server)
        elif isinstance(msg, message.TextMessage):
            return self.is_matching(msg.message, msg.to, server)
        else:
            return False


    def is_matching(self, strcmp, receivers=list(), server=None):
        """Test if the current hook correspond to the message"""
        if (server is None or self.server is None or self.server == server
            ) and ((self.name is None or strcmp == self.name) and (
            self.regexp is None or re.match(self.regexp, strcmp))):

            if receivers and self.channels:
                for receiver in receivers:
                    if receiver in self.channels:
                        return True
            else:
                return True
        return False