#!/usr/bin/python
# -*- coding: utf-8 -*-

"""
helper class for making a SAT frontend
Copyright (C) 2009, 2010  Jérôme Poisson (goffi@goffi.org)

This program 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.

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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.
"""

from logging import debug, info, error
from tools.jid  import JID



class QuickChat():
    
    def __init__(self, target, host, type='one2one'):
        self.target = target
        self.host = host
        self.type = type
        self.id = ""
        self.nick = None
        self.occupants = set()

    def setType(self, type):
        """Set the type of the chat
        @param type: can be 'one2one' for single conversation or 'group' for chat à la IRC
        """
        self.type = type

    def setPresents(self, nicks):
        """Set the users presents in the contact list for a group chat
        @param nicks: list of nicknames
        """
        debug (_("Adding users %s to room") % nicks)
        if self.type != "group":
            error (_("[INTERNAL] trying to set presents nicks for a non group chat window"))
            raise Exception("INTERNAL ERROR") #TODO: raise proper Exception here
        self.occupants.update(nicks)
    
    def replaceUser(self, nick):
        """Add user if it is not in the group list"""
        debug (_("Replacing user %s") % nick)
        if self.type != "group":
            error (_("[INTERNAL] trying to replace user for a non group chat window"))
            raise Exception("INTERNAL ERROR") #TODO: raise proper Exception here
        self.occupants.add(nick)
    
    def setUserNick(self, nick):
        """Set the nick of the user, usefull for e.g. change the color of the user"""
        self.nick = nick

    def removeUser(self, nick):
        """Remove a user from the group list"""
        debug(_("Removing user %s") % nick)
        if self.type != "group":
            error (_("[INTERNAL] trying to remove user for a non group chat window"))
            raise Exception("INTERNAL ERROR") #TODO: raise proper Exception here
        self.occupants.remove(nick)

    def setSubject(self, subject):
        """Set title for a group chat"""
        debug(_("Setting subject to %s") % subject)
        if self.type != "group":
            error (_("[INTERNAL] trying to set subject for a non group chat window"))
            raise Exception("INTERNAL ERROR") #TODO: raise proper Exception here

    def historyPrint(self, size=20, keep_last=False, profile='@NONE@'):
        """Print the initial history"""
        debug (_("now we print history"))
        history=self.host.bridge.getHistory(self.host.profiles[profile]['whoami'].short, self.target, 20)
        stamps=history.keys()
        stamps.sort()
        for stamp in stamps: 
            self.printMessage(JID(history[stamp][0]), history[stamp][1], profile, stamp)
        if keep_last:  ##FIXME hack for sortilege
            self.last_history = stamps[-1] if stamps else None

    def printMessage(self, from_jid, msg, profile, timestamp):
        """Print message in chat window. Must be implemented by child class"""
        raise NotImplementedError