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

# Cagou: desktop/mobile frontend for Salut à Toi XMPP client
# Copyright (C) 2016 Jérôme Poisson (goffi@goffi.org)

# 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/>.


from sat.core import log as logging
log = logging.getLogger(__name__)
from sat_frontends.constants import Const as C
from sat_frontends.quick_frontend.quick_profile_manager import QuickProfileManager
from kivy.uix.boxlayout import BoxLayout
from kivy.uix import listview
from kivy.uix.button import Button
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.adapters import listadapter
from kivy import properties


class ProfileItem(listview.ListItemButton):
    pass


class ProfileListAdapter(listadapter.ListAdapter):

    def __init__(self, pm, *args, **kwargs):
        super(ProfileListAdapter, self).__init__(*args, **kwargs)
        self.pm = pm
        self.host = pm.host

    def closeUI(self, xmlui):
        self.pm.screen_manager.transition.direction = 'right'
        self.pm.screen_manager.current = 'profiles'

    def showUI(self, xmlui):
        xmlui.setCloseCb(self.closeUI)
        if xmlui.type == 'popup':
            xmlui.bind(on_touch_up=lambda obj, value: self.closeUI(xmlui))
        self.pm.xmlui_screen.clear_widgets()
        self.pm.xmlui_screen.add_widget(xmlui)
        self.pm.screen_manager.transition.direction = 'left'
        self.pm.screen_manager.current = 'xmlui'

    def select_item_view(self, view):
        def authenticate_cb(data, cb_id, profile):
            if C.bool(data.pop('validated', C.BOOL_FALSE)):
                super(ProfileListAdapter, self).select_item_view(view)
            self.host.actionManager(data, callback=authenticate_cb, ui_show_cb=self.showUI, profile=profile)

        self.host.launchAction(C.AUTHENTICATE_PROFILE_ID, callback=authenticate_cb, profile=view.text)


class ConnectButton(Button):

    def __init__(self, profile_screen):
        self.profile_screen = profile_screen
        self.pm = profile_screen.pm
        super(ConnectButton, self).__init__()


class NewProfileScreen(Screen):
    profile_name = properties.ObjectProperty(None)
    jid = properties.ObjectProperty(None)
    password = properties.ObjectProperty(None)
    error_msg = properties.StringProperty('')

    def __init__(self, pm):
        super(NewProfileScreen, self).__init__(name=u'new_profile')
        self.pm = pm
        self.host = pm.host

    def onCreationFailure(self, failure):
        msg = [l for l in unicode(failure).split('\n') if l][-1]
        self.error_msg = unicode(msg)

    def onCreationSuccess(self, profile):
        self.pm.profiles_screen.reload()
        self.host.bridge.profileStartSession(self.password.text, profile, callback=lambda dummy: self._sessionStarted(profile), errback=self.onCreationFailure)

    def _sessionStarted(self, profile):
        jid = self.jid.text.strip()
        self.host.bridge.setParam("JabberID", jid, "Connection", -1, profile)
        self.host.bridge.setParam("Password", self.password.text, "Connection", -1, profile)
        self.pm.screen_manager.transition.direction = 'right'
        self.pm.screen_manager.current = 'profiles'

    def doCreate(self):
        name = self.profile_name.text.strip()
        # XXX: we use XMPP password for profile password to simplify
        #      if user want to change profile password, he can do it in preferences
        self.host.bridge.asyncCreateProfile(name, self.password.text, callback=lambda: self.onCreationSuccess(name), errback=self.onCreationFailure)


class DeleteProfilesScreen(Screen):

    def __init__(self, pm):
        self.pm = pm
        self.host = pm.host
        super(DeleteProfilesScreen, self).__init__(name=u'delete_profiles')

    def doDelete(self):
        """This method will delete *ALL* selected profiles"""
        to_delete = self.pm.getProfiles()
        deleted = [0]

        def deleteInc():
            deleted[0] += 1
            if deleted[0] == len(to_delete):
                self.pm.profiles_screen.reload()
                self.pm.screen_manager.transition.direction = 'right'
                self.pm.screen_manager.current = 'profiles'

        for profile in to_delete:
            log.info(u"Deleteing profile [{}]".format(profile))
            self.host.bridge.asyncDeleteProfile(profile, callback=deleteInc, errback=deleteInc)


class ProfilesScreen(Screen):
    layout = properties.ObjectProperty(None)

    def __init__(self, pm):
        self.pm = pm
        profiles = pm.host.bridge.getProfilesList()
        profiles.sort()
        self.list_adapter = ProfileListAdapter(pm,
                                               data=profiles,
                                               cls=ProfileItem,
                                               selection_mode='multiple',
                                               allow_empty_selection=True,
                                              )
        super(ProfilesScreen, self).__init__(name=u'profiles')
        self.layout.add_widget(listview.ListView(adapter=self.list_adapter))
        connect_btn = ConnectButton(self)
        self.layout.add_widget(connect_btn)

    def reload(self):
        """Reload profiles list"""
        profiles = self.pm.host.bridge.getProfilesList()
        profiles.sort()
        self.list_adapter.data = profiles


class ProfileManager(QuickProfileManager, BoxLayout):

    def __init__(self, host, autoconnect=None):
        QuickProfileManager.__init__(self, host, autoconnect)
        BoxLayout.__init__(self, orientation="vertical")
        self.screen_manager = ScreenManager()
        self.profiles_screen = ProfilesScreen(self)
        self.new_profile_screen = NewProfileScreen(self)
        self.delete_profiles_screen = DeleteProfilesScreen(self)
        self.xmlui_screen = Screen(name=u'xmlui')
        self.screen_manager.add_widget(self.profiles_screen)
        self.screen_manager.add_widget(self.xmlui_screen)
        self.screen_manager.add_widget(self.new_profile_screen)
        self.screen_manager.add_widget(self.delete_profiles_screen)
        self.add_widget(self.screen_manager)

    def getProfiles(self):
        return [pi.text for pi in self.profiles_screen.list_adapter.selection]