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

"""
helper class for making a SAT frontend
Copyright (C) 2009, 2010, 2011  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 sat.tools.jid  import JID
from sat_frontends.bridge.DBus import DBusBridgeFrontend,BridgeExceptionNoService
from optparse import OptionParser
import pdb

import gettext
gettext.install('sat_frontend', "../i18n", unicode=True)

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

    def __init__(self, single_profile=True):
        self.rosterList = {}
        self.profiles = {}
        self.single_profile = single_profile
        self.check_options()
        
        ## bridge ##
        try:
            self.bridge=DBusBridgeFrontend()
        except BridgeExceptionNoService:
            print(_(u"Can't connect to SàT backend, are you sure it's launched ?"))
            import sys
            sys.exit(1)
        self.bridge.register("connected", self.connected)
        self.bridge.register("disconnected", self.disconnected)
        self.bridge.register("connectionError", self.connectionError)
        self.bridge.register("newContact", self.newContact)
        self.bridge.register("newMessage", self.newMessage)
        self.bridge.register("newAlert", self.newAlert)
        self.bridge.register("presenceUpdate", self.presenceUpdate)
        self.bridge.register("roomJoined", self.roomJoined)
        self.bridge.register("roomUserJoined", self.roomUserJoined)
        self.bridge.register("roomUserLeft", self.roomUserLeft)
        self.bridge.register("roomNewSubject", self.roomNewSubject)
        self.bridge.register("tarotGameStarted", self.tarotGameStarted)
        self.bridge.register("tarotGameNew", self.tarotGameNew)
        self.bridge.register("tarotGameChooseContrat", self.tarotChooseContrat)
        self.bridge.register("tarotGameShowCards", self.tarotShowCards)
        self.bridge.register("tarotGameYourTurn", self.tarotMyTurn)
        self.bridge.register("tarotGameScore", self.tarotScore)
        self.bridge.register("tarotGameCardsPlayed", self.tarotCardsPlayed)
        self.bridge.register("tarotGameInvalidCards", self.tarotInvalidCards)
        self.bridge.register("subscribe", self.subscribe)
        self.bridge.register("paramUpdate", self.paramUpdate)
        self.bridge.register("contactDeleted", self.contactDeleted)
        self.bridge.register("updatedValue", self.updatedValue, "request")
        self.bridge.register("askConfirmation", self.askConfirmation, "request")
        self.bridge.register("actionResult", self.actionResult, "request")
        self.bridge.register("actionResultExt", self.actionResult, "request")
        
        self.current_action_ids = set()
        self.current_action_ids_cb = {}
    
    def check_profile(self, profile):
        """Tell if the profile is currently followed by the application"""
        return profile in self.profiles.keys()

    def postInit(self):
        """Must be called after initialization is done, do all automatic task (auto plug profile)"""
        if self.options.profile:
            if not self.bridge.getProfileName(self.options.profile): 
                error(_("Trying to plug an unknown profile (%s)" % self.options.profile))
            else:
                self.plug_profile(self.options.profile)

    def check_options(self):
        """Check command line options"""
        usage=_("""
        %prog [options]

        %prog --help for options list
        """)
        parser = OptionParser(usage=usage)

        parser.add_option("-p", "--profile", help=_("Select the profile to use"))

        (self.options, args) = parser.parse_args()
        if self.options.profile:
            self.options.profile = self.options.profile.decode('utf-8')
        return args

    def plug_profile(self, profile_key='@DEFAULT@'):
        """Tell application which profile must be used"""
        if self.single_profile and self.profiles:
            error(_('There is already one profile plugged (we are in single profile mode) !'))
            return
        profile = self.bridge.getProfileName(profile_key)
        if not profile:
            error(_("The profile asked doesn't exist"))
            return
        if self.profiles.has_key(profile):
            warning(_("The profile is already plugged"))
            return
        self.profiles[profile]={}
        if self.single_profile:
            self.profile = profile
        
        ###now we get the essential params###
        self.profiles[profile]['whoami']=JID(self.bridge.getParamA("JabberID","Connection", profile_key=profile))
        autoconnect = self.bridge.getParamA("autoconnect","Connection", profile_key=profile) == "true"
        self.profiles[profile]['watched']=self.bridge.getParamA("Watched", "Misc", profile_key=profile).split() #TODO: put this in a plugin

        ## misc ##
        self.profiles[profile]['onlineContact'] = set()  #FIXME: temporary

        #TODO: gof: manage multi-profiles here
        if not self.bridge.isConnected(profile):
            self.setStatusOnline(False)
        else:
            self.setStatusOnline(True)

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

            presences = self.bridge.getPresenceStatus(profile)
            for contact in presences:
                for res in presences[contact]:
                    jabber_id = contact+('/'+res if res else '')
                    show = presences[contact][res][0]
                    priority = presences[contact][res][1]
                    statuses = presences[contact][res][2]
                    self.presenceUpdate(jabber_id, show, priority, statuses, profile)

            #The waiting subscription requests
            waitingSub = self.bridge.getWaitingSub(profile)
            for sub in waitingSub:
                self.subscribe(waitingSub[sub], sub, profile)

            #Now we open the MUC window where we already are:
            for room_args in self.bridge.getRoomJoined(profile):
                self.roomJoined(*room_args, profile=profile)

            for subject_args in self.bridge.getRoomSubjects(profile):
                self.roomNewSubject(*subject_args, profile=profile)
        
        if autoconnect and not self.bridge.isConnected(profile_key):
            #Does the user want autoconnection ?
            self.bridge.connect(profile_key)
        

    def unplug_profile(self, profile):
        """Tell the application to not follow anymore the profile"""
        if not profile in self.profiles:
            warning (_("This profile is not plugged"))
            return
        self.profiles.remove(profile)

    def clear_profile(self):
        self.profiles.clear()

    def connected(self, profile):
        """called when the connection is made"""
        if not self.check_profile(profile):
            return
        debug(_("Connected"))
        self.setStatusOnline(True)

    def disconnected(self, profile):
        """called when the connection is closed"""
        if not self.check_profile(profile):
            return
        debug(_("Disconnected"))
        self.CM.clear()
        self.contactList.clear_contacts()
        self.setStatusOnline(False)
    
    def connectionError(self, error_type, profile):
        """called when something goest wrong with the connection"""
        if not self.check_profile(profile):
            return
        debug(_("Connection Error"))
        self.disconnected(profile)
        if error_type == "AUTH_ERROR":
            self.showDialog(_("Can't connect to account, please check your password"), _("Connection error"), "error")
        else:
            error(_('FIXME: error_type %s not implemented') % error_type)

    def newContact(self, JabberId, attributes, groups, profile):
        if not self.check_profile(profile):
            return
        entity=JID(JabberId)
        self.rosterList[entity.short]=(dict(attributes), list(groups))
    
    def newMessage(self, from_jid, msg, type, to_jid, profile):
        if not self.check_profile(profile):
            return
        sender=JID(from_jid)
        addr=JID(to_jid)
        win = addr if sender.short == self.profiles[profile]['whoami'].short else sender
        self.current_action_ids = set()
        self.current_action_ids_cb = {}
        self.chat_wins[win.short].printMessage(sender, msg, profile)

    def newAlert(self, msg, title, alert_type, profile):
        if not self.check_profile(profile):
            return
        assert alert_type in ['INFO','ERROR']
        self.showDialog(unicode(msg),unicode(title),alert_type.lower())

    
    def setStatusOnline(self, online=True):
        pass

    def presenceUpdate(self, jabber_id, show, priority, statuses, profile):
        if not self.check_profile(profile):
            return
        debug (_("presence update for %(jid)s (show=%(show)s, priority=%(priority)s, statuses=%(statuses)s) [profile:%(profile)s]") % {'jid':jabber_id, 'show':show, 'priority':priority, 'statuses':statuses, 'profile':profile});
        from_jid=JID(jabber_id)
        debug ("from_jid.short=%(from_jid)s whoami.short=%(whoami)s" % {'from_jid':from_jid.short, 'whoami':self.profiles[profile]['whoami'].short})

        if from_jid.short==self.profiles[profile]['whoami'].short:
            if not type:
                self.setStatusOnline(True)
            elif type=="unavailable":
                self.setStatusOnline(False)
            return

        if show != 'unavailable':
            name=""
            groups = []
            if self.rosterList.has_key(from_jid.short):
                if self.rosterList[from_jid.short][0].has_key("name"):
                    name=self.rosterList[from_jid.short][0]["name"]
                groups=self.rosterList[from_jid.short][1]

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

            self.profiles[profile]['onlineContact'].add(from_jid)  #FIXME onlineContact is useless with CM, must be removed
            self.CM.add(from_jid)
            self.CM.update(from_jid, 'name', unicode(name))
            self.CM.update(from_jid, 'show', show)
            self.CM.update(from_jid, 'statuses', statuses)
            self.CM.update(from_jid, 'groups', groups)
            cache = self.bridge.getCardCache(from_jid)
            if cache.has_key('nick'): 
                self.CM.update(from_jid, 'nick', unicode(cache['nick']))
            if cache.has_key('avatar'): 
                self.CM.update(from_jid, 'avatar', self.bridge.getAvatarFile(cache['avatar']))
            self.contactList.replace(from_jid, self.CM.getAttr(from_jid, 'groups'))

        if show=="unavailable" and from_jid in self.profiles[profile]['onlineContact']:
            self.profiles[profile]['onlineContact'].remove(from_jid)
            self.CM.remove(from_jid)
            if not self.CM.isConnected(from_jid):
                self.contactList.disconnect(from_jid)
    
    def roomJoined(self, room_id, room_service, room_nicks, user_nick, profile):
        """Called when a MUC room is joined"""
        if not self.check_profile(profile):
            return
        debug (_("Room [%(room_name)s] joined by %(profile)s, users presents:%(users)s") % {'room_name':room_id+'@'+room_service, 'profile': profile, 'users':room_nicks})
        room_jid=room_id+'@'+room_service
        self.chat_wins[room_jid].setUserNick(user_nick)
        self.chat_wins[room_jid].setType("group")
        self.chat_wins[room_jid].id = room_jid
        self.chat_wins[room_jid].setPresents(list(set([user_nick]+room_nicks)))


    def roomUserJoined(self, room_id, room_service, user_nick, user_data, profile):
        """Called when an user joined a MUC room"""
        if not self.check_profile(profile):
            return
        room_jid=room_id+'@'+room_service
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].replaceUser(user_nick)
            debug (_("user [%(user_nick)s] joined room [%(room_jid)s]") % {'user_nick':user_nick, 'room_jid':room_jid})

    def roomUserLeft(self, room_id, room_service, user_nick, user_data, profile):
        """Called when an user joined a MUC room"""
        if not self.check_profile(profile):
            return
        room_jid=room_id+'@'+room_service
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].removeUser(user_nick)
            debug (_("user [%(user_nick)s] left room [%(room_jid)s]") % {'user_nick':user_nick, 'room_jid':room_jid})

    def roomNewSubject(self, room_id, room_service, subject, profile):
        """Called when subject of MUC room change"""
        if not self.check_profile(profile):
            return
        room_jid=room_id+'@'+room_service
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].setSubject(subject)
            debug (_("new subject for room [%(room_jid)s]: %(subject)s") % {'room_jid':room_jid, "subject":subject})
    
    def tarotGameStarted(self, room_jid, referee, players, profile):
        if not self.check_profile(profile):
            return
        debug  (_("Tarot Game Started \o/"))
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].startGame("Tarot", referee, players)
            debug (_("new Tarot game started by [%(referee)s] in room [%(room_jid)s] with %(players)s") % {'referee':referee, 'room_jid':room_jid, 'players':[str(player) for player in players]})
       
    def tarotGameNew(self, room_jid, hand, profile):
        if not self.check_profile(profile):
            return
        debug (_("New Tarot Game"))
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].getGame("Tarot").newGame(hand)

    def tarotChooseContrat(self, room_jid, xml_data, profile):
        """Called when the player has to select his contrat"""
        if not self.check_profile(profile):
            return
        debug (_("Tarot: need to select a contrat"))
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].getGame("Tarot").chooseContrat(xml_data)

    def tarotShowCards(self, room_jid, game_stage, cards, data, profile):
        if not self.check_profile(profile):
            return
        debug (_("Show cards"))
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].getGame("Tarot").showCards(game_stage, cards, data)

    def tarotMyTurn(self, room_jid, profile):
        if not self.check_profile(profile):
            return
        debug (_("My turn to play"))
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].getGame("Tarot").myTurn()
    
    def tarotScore(self, room_jid, xml_data, winners, loosers, profile): 
        """Called when the game is finished and the score are updated"""
        if not self.check_profile(profile):
            return
        debug (_("Tarot: score received"))
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].getGame("Tarot").showScores(xml_data, winners, loosers)

    def tarotCardsPlayed(self, room_jid, player, cards, profile):
        if not self.check_profile(profile):
            return
        debug (_("Card(s) played (%(player)s): %(cards)s") % {"player":player, "cards":cards})
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].getGame("Tarot").cardsPlayed(player, cards)
   
    def tarotInvalidCards(self, room_jid, phase, played_cards, invalid_cards, profile):
        if not self.check_profile(profile):
            return
        debug (_("Cards played are not valid: %s") % invalid_cards)
        if self.chat_wins.has_key(room_jid):
            self.chat_wins[room_jid].getGame("Tarot").invalidCards(phase, played_cards, invalid_cards)
  
    def _subscribe_cb(self, answer, data):
        entity, profile = data
        if answer:
            self.bridge.subscription("subscribed", entity.short, profile_key = profile)
        else:
            self.bridge.subscription("unsubscribed", entity.short, profile_key = profile)

    def subscribe(self, type, raw_jid, profile):
        """Called when a subsciption management signal is received"""
        if not self.check_profile(profile):
            return
        entity = JID(raw_jid)
        if type=="subscribed":
            # this is a subscription confirmation, we just have to inform user
            self.showDialog(_("The contact %s has accepted your subscription") % entity.short, _('Subscription confirmation'))
        elif type=="unsubscribed":
            # this is a subscription refusal, we just have to inform user
            self.showDialog(_("The contact %s has refused your subscription") % entity.short, _('Subscription refusal'), 'error')
        elif type=="subscribe":
            # this is a subscriptionn request, we have to ask for user confirmation
            answer = self.showDialog(_("The contact %s wants to subscribe to your presence.\nDo you accept ?") % entity.short, _('Subscription confirmation'), 'yes/no', answer_cb = self._subscribe_cb, answer_data=(entity, profile))

    def showDialog(self, message, title, type="info", answer_cb = None):
        raise NotImplementedError
    
    def showAlert(self, message):
        pass  #FIXME
    
    def paramUpdate(self, name, value, namespace, profile):
        if not self.check_profile(profile):
            return
        debug(_("param update: [%(namespace)s] %(name)s = %(value)s") % {'namespace':namespace, 'name':name, 'value':value})
        if (namespace,name) == ("Connection", "JabberID"):
            debug (_("Changing JID to %s"), value)
            self.profiles[profile]['whoami']=JID(value)
        elif (namespace,name) == ("Misc", "Watched"):
            self.profiles[profile]['watched']=value.split()

    def contactDeleted(self, jid, profile):
        if not self.check_profile(profile):
            return
        target = JID(jid)
        self.CM.remove(target)
        self.contactList.remove(self.CM.get_full(target))
        try:
            self.profiles[profile]['onlineContact'].remove(target.short)
        except KeyError:
            pass

    def updatedValue(self, name, data):
        if name == "card_nick":
            target = JID(data['jid'])
            if target in self.contactList:
                self.CM.update(target, 'nick', unicode(data['nick']))
                self.contactList.replace(target)
        elif name == "card_avatar":
            target = JID(data['jid'])
            if target in self.contactList:
                filename = self.bridge.getAvatarFile(data['avatar'])
                self.CM.update(target, 'avatar', filename)
                self.contactList.replace(target)

    def askConfirmation(self, type, id, data):
        raise NotImplementedError
    
    def actionResult(self, type, id, data):
        raise NotImplementedError

    def onExit(self):
        """Must be called when the frontend is terminating"""
        #TODO: mange multi-profile here
        try:
            autodisconnect = self.bridge.getParamA("autodisconnect","Connection", profile_key=self.profile) == "true"
            if autodisconnect and self.bridge.isConnected(self.profile):
                #Does the user want autodisconnection ?
                self.bridge.disconnect(self.profile)
        except:
            pass