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

"""
helper class for making a SAT frontend
Copyright (C) 2009  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
from sat_bridge_frontend.DBus import DBusBridgeFrontend
from quick_frontend.quick_contact_management import QuickContactManagement


class QuickApp():
    """This class contain the main methods needed for the frontend"""

    def __init__(self):
        self.rosterList = {}
        self.CM = QuickContactManagement()  #a short name if more handy
        
        ## bridge ##
        self.bridge=DBusBridgeFrontend()
        self.bridge.register("newContact", self.newContact)
        self.bridge.register("newMessage", self.newMessage)
        self.bridge.register("presenceUpdate", self.presenceUpdate)
        self.bridge.register("paramUpdate", self.paramUpdate)
        self.bridge.register("contactDeleted", self.contactDeleted)
        self.bridge.register("askConfirmation", self.askConfirmation, "request")
        
        ###now we get the essential params###
        self.whoami=JID(self.bridge.getParamV("JabberID","Connection"))
        self.watched=self.bridge.getParamV("Watched", "Misc").split() #TODO: put this in a plugin

        ## misc ##
        self.onlineContact = set()  #FIXME: temporary

        if self.bridge.isConnected():
            self.setStatusOnline(True)

        ### now we fill the contact list ###
        for contact in self.bridge.getContacts():
            self.newContact(contact[0], contact[1], contact[2])

        for status in self.bridge.getPresenceStatus():
            self.presenceUpdate(status[0], status[1], status[2], status[3], status[4])


    def newContact(self, JabberId, attributes, groups):
        jid=JID(JabberId)
        self.rosterList[jid.short]=(dict(attributes), list(groups))
    
    def newMessage(self, from_jid, msg, type, to_jid):
        sender=JID(from_jid)
        addr=JID(to_jid)
        win = addr if sender.short == self.whoami.short else sender
        self.chat_wins[win.short].printMessage(sender, msg)

    def setStatusOnline(self, online=True):
        pass

    def presenceUpdate(self, jabber_id, type, show, status, priority):
        debug ("presence update for %s (type=%s, show=%s, status=%s)", jabber_id, type, show, status);
        jid=JID(jabber_id)
        debug ("jid.short=%s whoami.short=%s", jid.short, self.whoami.short)

        ### subscription management ###
        if type=="subscribed":
            # this is a subscription confirmation, we just have to inform user
            self.showDialog("The contact %s has accepted your subscription" % jid.short, 'Subscription confirmation')
            return
        elif type=="unsubscribed":
            # this is a subscription refusal, we just have to inform user
            self.showDialog("The contact %s has refused your subscription" % jid.short, 'Subscription refusal', 'error')
            return
        elif type=="subscribe":
            # this is a subscrition request, we have to ask for user confirmation
            answer = self.showDialog("The contact %s wants to subscribe to your presence.\nDo you accept ?" % jid.short, 'Subscription confirmation', 'question')
            if answer:
                self.bridge.setPresence(type="subscribed", to=jid.short)
            else:
                self.bridge.setPresence(type="unsubscribed", to=jid.short)
            return
        ### subscription management end ###

        if jid.short==self.whoami.short:
            if not type:
                self.setStatusOnline(True)
            elif type=="unavailable":
                self.setStatusOnline(False)
            return

        if not type:
            name=""
            group=""
            if self.rosterList.has_key(jid.short):
                if self.rosterList[jid.short][0].has_key("name"):
                    name=self.rosterList[jid.short][0]["name"]
                if self.rosterList[jid.short][0].has_key("show"):
                    name=self.rosterList[jid.short][0]["show"]
                if self.rosterList[jid.short][0].has_key("status"):
                    name=self.rosterList[jid.short][0]["status"]
                if len(self.rosterList[jid.short][1]):
                    group=self.rosterList[jid.short][1][0]

            #FIXME: must be moved in a plugin
            if jid.short in self.watched and not jid.short in self.onlineContact:
                self.showAlert("Watched jid [%s] is connected !" % jid.short)

            self.onlineContact.add(jid)  #FIXME onlineContact is useless with CM, must be removed
            self.CM.add(jid)
            self.contactList.replace(jid, show=show, status=status, name=name, group=group)


        if type=="unavailable" and jid in self.onlineContact:
            self.onlineContact.remove(jid)
            self.CM.remove(jid)
            self.contactList.remove(jid)


    def showDialog(self, message, title, type="info"):
        raise NotImplementedError
    
    def showAlert(self, message):
        pass  #FIXME
    
    def paramUpdate(self, name, value, namespace):
        debug("param update: [%s] %s = %s", namespace, name, value)
        if (namespace,name) == ("Connection", "JabberID"):
            debug ("Changing ID to %s", value)
            self.whoami=JID(value)
        elif (namespace,name) == ("Misc", "Watched"):
            self.watched=value.split()

    def contactDeleted(self, jid):
        target = JID(jid)
        try:
            self.onlineContact.remove(target.short)
        except KeyError:
            pass
        self.contactList.remove(self.CM.get_full(jid))
        self.CM.remove(target)
    
    def askConfirmation(self, type, id, data):
        raise NotImplementedError