#!/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("connection_error", self.connection_error)
        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))
        autoconnect = self.bridge.getParamA("autoconnect","Connection", profile) == "true"
        self.profiles[profile]['watched']=self.bridge.getParamA("Watched", "Misc", 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 connection_error(self, profile, error_type):
        """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, 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", self.profile) == "true"
            if autodisconnect and self.bridge.isConnected(self.profile):
                #Does the user want autodisconnection ?
                self.bridge.disconnect(self.profile)
        except:
            pass