# -*- python -*-
# -*- coding: utf-8 -*-
#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2011-2016  Serge Noiraud
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#

"""
Geography for two families
"""
#-------------------------------------------------------------------------
#
# Python modules
#
#-------------------------------------------------------------------------
from gramps.gen.const import GRAMPS_LOCALE as glocale
_ = glocale.translation.gettext
import operator
from gi.repository import Gtk
from math import hypot

#-------------------------------------------------------------------------
#
# set up logging
#
#-------------------------------------------------------------------------
import logging
_LOG = logging.getLogger("GeoGraphy.geofamilyclose")

#-------------------------------------------------------------------------
#
# Gramps Modules
#
#-------------------------------------------------------------------------
from gramps.gen.lib import EventRoleType, EventType
from gramps.gen.config import config
from gramps.gen.datehandler import displayer
from gramps.gen.display.name import displayer as _nd
from gramps.gen.display.place import displayer as _pd
from gramps.gen.utils.place import conv_lat_lon
from gramps.gui.views.navigationview import NavigationView
from gramps.gui.views.bookmarks import FamilyBookmarks
from gramps.plugins.lib.maps import constants
from gramps.plugins.lib.maps.geography import GeoGraphyView
from gramps.gui.selectors import SelectorFactory

#-------------------------------------------------------------------------
#
# Constants
#
#-------------------------------------------------------------------------

_UI_DEF = '''\
<ui>
<menubar name="MenuBar">
<menu action="GoMenu">
  <placeholder name="CommonGo">
    <menuitem action="Back"/>
    <menuitem action="Forward"/>
    <separator/>
    <menuitem action="HomePerson"/>
    <separator/>
  </placeholder>
</menu>
<menu action="EditMenu">
  <placeholder name="CommonEdit">
    <menuitem action="PrintView"/>
  </placeholder>
</menu>
<menu action="BookMenu">
  <placeholder name="AddEditBook">
    <menuitem action="AddBook"/>
    <menuitem action="EditBook"/>
  </placeholder>
</menu>
</menubar>
<toolbar name="ToolBar">
<placeholder name="CommonNavigation">
  <toolitem action="Back"/>
  <toolitem action="Forward"/>
  <toolitem action="HomePerson"/>
  <toolitem action="RefFamily"/>
</placeholder>
<placeholder name="CommonEdit">
  <toolitem action="PrintView"/>
</placeholder>
</toolbar>
</ui>
'''

# pylint: disable=no-member
# pylint: disable=unused-variable
# pylint: disable=unused-argument

#-------------------------------------------------------------------------
#
# GeoView
#
#-------------------------------------------------------------------------
class GeoFamClose(GeoGraphyView):
    """
    The view used to render family's map.
    """
    CONFIGSETTINGS = (
        ('geography.path', constants.GEOGRAPHY_PATH),

        ('geography.zoom', 10),
        ('geography.zoom_when_center', 12),
        ('geography.show_cross', True),
        ('geography.lock', False),
        ('geography.center-lat', 0.0),
        ('geography.center-lon', 0.0),
        ('geography.use-keypad', True),

        ('geography.map_service', constants.OPENSTREETMAP),
        ('geography.max_places', 5000),

        # specific to geoclose :

        ('geography.color1', 'blue'),
        ('geography.color2', 'green'),
        ('geography.maximum_meeting_zone', 5),

        )

    def __init__(self, pdata, dbstate, uistate, nav_group=0):
        GeoGraphyView.__init__(self,
                               _("Have these two families been able to meet?"),
                               pdata, dbstate, uistate,
                               FamilyBookmarks, nav_group)
        self.dbstate = dbstate
        self.uistate = uistate
        self.place_list = []
        self.all_place_list = []
        self.place_without_coordinates = []
        self.minlat = self.maxlat = self.minlon = self.maxlon = 0.0
        self.minyear = 9999
        self.maxyear = 0
        self.reffamily = None
        self.reffamily_bookmark = None
        self.nbplaces = 0
        self.nbmarkers = 0
        self.sort = []
        self.tracks = []
        self.additional_uis.append(self.additional_ui())
        self.ref_family = None
        self.skip_list = []
        self.track = []
        self.place_list_active = []
        self.place_list_ref = []
        self.cal = config.get('preferences.calendar-format-report')
        self.no_show_places_in_status_bar = False
        self.config_meeting_slider = None

    def get_title(self):
        """
        Used to set the titlebar in the configuration window.
        """
        return _('GeoFamClose')

    def get_stock(self):
        """
        Returns the name of the stock icon to use for the display.
        This assumes that this icon has already been registered
        as a stock icon.
        """
        return 'geo-show-family'

    def get_viewtype_stock(self):
        """Type of view in category
        """
        return 'geo-show-family'

    def additional_ui(self):
        """
        Specifies the UIManager XML code that defines the menus and buttons
        associated with the interface.
        """
        return _UI_DEF

    def navigation_type(self):
        """
        Indicates the navigation type. Navigation type can be the string
        name of any of the primary objects.
        """
        return 'Family'

    def family_label(self, family):
        """
        Create the family label depending on existence of father and mother
        """
        if family is None:
            return "Unknown"
        father = mother = None
        hdl = family.get_father_handle()
        if hdl:
            father = self.dbstate.db.get_person_from_handle(hdl)
        hdl = family.get_mother_handle()
        if hdl:
            mother = self.dbstate.db.get_person_from_handle(hdl)
        if father and mother:
            label = _("%(gramps_id)s : %(father)s and %(mother)s") % {
                'father' : _nd.display(father),
                'mother' : _nd.display(mother),
                'gramps_id' : family.gramps_id,
                }
        elif father:
            label = "%(gramps_id)s : %(father)s" % {
                'father' : _nd.display(father),
                'gramps_id' : family.gramps_id,
                }
        elif mother:
            label = "%(gramps_id)s : %(mother)s" % {
                'mother' : _nd.display(mother),
                'gramps_id' : family.gramps_id,
                }
        else:
            # No translation for bare gramps_id
            label = "%(gramps_id)s :" % {
                'gramps_id' : family.gramps_id,
                }
        return label

    def goto_handle(self, handle=None):
        """
        Rebuild the tree with the given family handle as reference.
        """
        self.place_list_active = []
        self.place_list_ref = []
        self.all_place_list = []
        self.sort = []
        self.places_found = []
        self.place_without_coordinates = []
        self.nbmarkers = 0
        self.nbplaces = 0
        self.remove_all_gps()
        self.remove_all_markers()
        self.lifeway_layer.clear_ways()
        self.message_layer.clear_messages()
        active = self.get_active()
        family = None
        if active:
            family = self.dbstate.db.get_family_from_handle(active)
            color = self._config.get('geography.color2')
            self._createmap(family, color, self.place_list_active, False)
        if self.reffamily:
            color = self._config.get('geography.color1')
            self._createmap(self.reffamily, color, self.place_list_ref, True)
            self.message_layer.add_message(_("Family reference : %s") %
                                           self.family_label(self.reffamily))
            if family:
                self.message_layer.add_message(_("The other family : %s") %
                                               self.family_label(family))
            else:
                self.message_layer.add_message(_("The other family : %s") %
                                               _("Unknown"))
            if self.reffamily_bookmark is None:
                self.reffamily_bookmark = self.reffamily.get_handle()
                self.add_bookmark_from_popup(None, self.reffamily_bookmark)
        else:
            self.message_layer.add_message(
                                     _("You must choose one reference family."))
            self.message_layer.add_message(
                                  _("Go to the family view and select "
                                    "the families you want to compare. "
                                    "Return to this view and use the history."))
        if family is not None:
            self._possible_family_meeting(self.reffamily, family)
        self.uistate.modify_statusbar(self.dbstate)

    def define_actions(self):
        """
        Define action for the reference family button.
        """
        NavigationView.define_actions(self)

        self.define_print_actions()
        self.ref_family = Gtk.ActionGroup(self.title + '/Selection')
        self.ref_family.add_actions([
            ('RefFamily', 'gramps-family', _('reference _Family'), None,
            _("Select the family which is the reference for life ways"),
            self.select_family),
            ])
        self._add_action_group(self.ref_family)

    def select_family(self, obj):
        """
        Open a selection box to choose the ref family.
        """
        self.track = []
        self.skip_list = []
        self.ref_family = None
        self.reffamily_bookmark = None
        select_family = SelectorFactory('Family')
        sel = select_family(self.dbstate, self.uistate)
        self.reffamily = sel.run()
        self.goto_handle(None)

    def build_tree(self):
        """
        This is called by the parent class when the view becomes visible. Since
        all handling of visibility is now in rebuild_trees, see that for more
        information.
        """
        self.lifeway_layer.clear_ways()
        if not self.dbstate.is_open():
            return
        active = self.get_active()
        if active:
            family = self.dbstate.db.get_family_from_handle(active)
            if family is None:
                self.goto_handle(None)
            else:
                self.goto_handle(handle=family)
        else:
            self.goto_handle(None)

    def draw(self, menu, marks, color, reference):
        """
        Create all moves for the people's event.
        """
        points = []
        mark = None
        for mark in marks:
            startlat = float(mark[3])
            startlon = float(mark[4])
            not_stored = True
            for idx in range(0, len(points)):
                if points[idx][0] == startlat and points[idx][1] == startlon:
                    not_stored = False
            if not_stored:
                points.append((startlat, startlon))
        self.lifeway_layer.add_way(points, color)
        if reference:
            self.lifeway_layer.add_way_ref(points, 'orange',
                     float(
                       self._config.get("geography.maximum_meeting_zone")) / 10)
        return False

    def _place_list_for_person(self, person):
        """
        get place list for one person
        """
        place_list = []
        for event in self.sort:
            if event[1] == _nd.display(person):
                place_list.append(event)
        return place_list

    def possible_meeting(self, ref_person, person):
        """
        Try to see if two persons can be to the same place during their life.
        If yes, show a marker with the dates for each person.
        """
        self.place_list_ref = self._place_list_for_person(ref_person)
        self.place_list_active = self._place_list_for_person(person)
        radius = float(self._config.get("geography.maximum_meeting_zone")/10.0)
        for ref in self.place_list_ref:
            for act in self.place_list_active:
                if (hypot(float(act[3])-float(ref[3]),
                          float(act[4])-float(ref[4])) <= radius) == True:
                    # we are in the meeting zone
                    self.add_marker(None, None, act[3], act[4], act[7], True, 1)
                    self.all_place_list.append(act)
                    self.add_marker(None, None, ref[3], ref[4], ref[7], True, 1)
                    self.all_place_list.append(ref)

    def _expose_persone_to_family(self, ref_person, family):
        """
        try to search one or more meeting zone for all persons of one family
        with one reference person
        """
        dbstate = self.dbstate
        try:
            person = dbstate.db.get_person_from_handle(
                                                     family.get_father_handle())
        except:
            return
        if person is None: # family without father ?
            person = dbstate.db.get_person_from_handle(
                                                     family.get_mother_handle())
        if person is not None:
            family_list = person.get_family_handle_list()
            if len(family_list) > 0:
                fhandle = family_list[0] # first is primary
                fam = dbstate.db.get_family_from_handle(fhandle)
                father = mother = None
                handle = fam.get_father_handle()
                if handle:
                    father = dbstate.db.get_person_from_handle(handle)
                if father:
                    self.possible_meeting(father, ref_person)
                handle = fam.get_mother_handle()
                if handle:
                    mother = dbstate.db.get_person_from_handle(handle)
                if mother:
                    self.possible_meeting(mother, ref_person)
                child_ref_list = fam.get_child_ref_list()
                if child_ref_list:
                    for child_ref in child_ref_list:
                        child = dbstate.db.get_person_from_handle(child_ref.ref)
                        if child:
                            self.possible_meeting(child, ref_person)
            else:
                self.possible_meeting(person, ref_person)


    def _possible_family_meeting(self, reference, family):
        """
        try to expose each person of the reference family to the second family
        """
        dbstate = self.dbstate
        person = None
        try:
            person = dbstate.db.get_person_from_handle(
                                                  reference.get_father_handle())
        except:
            return
        if person is None: # family without father ?
            handle = reference.get_mother_handle()
            if handle:
                person = dbstate.db.get_person_from_handle(handle)
        if person is None:
            handle = self.uistate.get_active('Person')
            if handle:
                person = dbstate.db.get_person_from_handle(handle)
        if person is not None:
            family_list = person.get_family_handle_list()
            if len(family_list) > 0:
                fhandle = family_list[0] # first is primary
                fam = dbstate.db.get_family_from_handle(fhandle)
                father = mother = None
                handle = fam.get_father_handle()
                if handle:
                    father = dbstate.db.get_person_from_handle(handle)
                if father:
                    self._expose_persone_to_family(father, family)
                handle = fam.get_mother_handle()
                if handle:
                    mother = dbstate.db.get_person_from_handle(handle)
                if mother:
                    self._expose_persone_to_family(mother, family)
                child_ref_list = fam.get_child_ref_list()
                if child_ref_list:
                    for child_ref in child_ref_list:
                        child = dbstate.db.get_person_from_handle(child_ref.ref)
                        if child:
                            self._expose_persone_to_family(child, family)
            else:
                self._expose_persone_to_family(person, family)


    def _createmap_for_one_person(self, person, color, place_list, reference):
        """
        Create all markers for each people's event in the database which has
        a lat/lon.
        """
        self.place_list = []
        dbstate = self.dbstate
        if person is not None:
            # For each event, if we have a place, set a marker.
            for event_ref in person.get_event_ref_list():
                if not event_ref:
                    continue
                event = dbstate.db.get_event_from_handle(event_ref.ref)
                role = event_ref.get_role()
                try:
                    date = event.get_date_object().to_calendar(self.cal)
                except:
                    continue
                eyear = str("%04d" % date.get_year()) + \
                        str("%02d" % date.get_month()) + \
                        str("%02d" % date.get_day())
                place_handle = event.get_place_handle()
                if place_handle:
                    place = dbstate.db.get_place_from_handle(place_handle)
                    if place:
                        longitude = place.get_longitude()
                        latitude = place.get_latitude()
                        latitude, longitude = conv_lat_lon(latitude,
                                                           longitude, "D.D8")
                        descr = _pd.display(dbstate.db, place)
                        evt = EventType(event.get_type())
                        descr1 = _("%(eventtype)s : %(name)s") % {
                                        'eventtype': evt,
                                        'name': _nd.display(person)}
                        # place.get_longitude and place.get_latitude return
                        # one string. We have coordinates when the two values
                        # contains non null string.
                        if longitude and latitude:
                            self._append_to_places_list(descr, evt,
                                                        _nd.display(person),
                                                        latitude, longitude,
                                                        descr1, eyear,
                                                        event.get_type(),
                                                        person.gramps_id,
                                                        place.gramps_id,
                                                        event.gramps_id,
                                                        role
                                                        )
                        else:
                            self._append_to_places_without_coord(
                                                        place.gramps_id, descr)
            family_list = person.get_family_handle_list()
            descr1 = " - "
            for family_hdl in family_list:
                family = self.dbstate.db.get_family_from_handle(family_hdl)
                if family is not None:
                    fhandle = family_list[0] # first is primary
                    father = mother = None
                    fam = dbstate.db.get_family_from_handle(fhandle)
                    handle = fam.get_father_handle()
                    if handle:
                        father = dbstate.db.get_person_from_handle(handle)
                    if father:
                        descr1 = "%s - " % _nd.display(father)
                    handle = fam.get_mother_handle()
                    if handle:
                        mother = dbstate.db.get_person_from_handle(handle)
                    if mother:
                        descr1 = "%s%s" % (descr1, _nd.display(mother))
                    for event_ref in family.get_event_ref_list():
                        if event_ref:
                            event = dbstate.db.get_event_from_handle(
                                            event_ref.ref)
                            role = event_ref.get_role()
                            if event.get_place_handle():
                                place_handle = event.get_place_handle()
                                if place_handle:
                                    place = dbstate.db.get_place_from_handle(
                                                    place_handle)
                                    if place:
                                        longitude = place.get_longitude()
                                        latitude = place.get_latitude()
                                        latitude, longitude = conv_lat_lon(
                                                  latitude, longitude, "D.D8")
                                        descr = _pd.display(dbstate.db, place)
                                        evt = EventType(
                                                  event.get_type())
                                        eyear = str(
         "%04d" % event.get_date_object().to_calendar(self.cal).get_year()) + \
     str("%02d" % event.get_date_object().to_calendar(self.cal).get_month()) + \
     str("%02d" % event.get_date_object().to_calendar(self.cal).get_day())
                                        if longitude and latitude:
                                            self._append_to_places_list(descr,
                                                 evt, _nd.display(person),
                                                 latitude, longitude,
                                                 descr1, eyear,
                                                 event.get_type(),
                                                 person.gramps_id,
                                                 place.gramps_id,
                                                 event.gramps_id,
                                                 role
                                                 )
                                        else:
                                            self._append_to_places_without_coord(place.gramps_id, descr)

            sort1 = sorted(self.place_list, key=operator.itemgetter(6))
            self.draw(None, sort1, color, reference)
            # merge with the last results
            merge_list = []
            for the_list in self.sort, sort1:
                merge_list += the_list
            self.sort = sorted(merge_list, key=operator.itemgetter(6))

    def _createmap_for_one_family(self, family, color, place_list, reference):
        """
        Create all markers for one family : all event's places with a lat/lon.
        """
        dbstate = self.dbstate
        person = None
        try:
            person = dbstate.db.get_person_from_handle(
                                                     family.get_father_handle())
        except:
            return
        family_id = family.gramps_id
        if person is None: # family without father ?
            handle = family.get_mother_handle()
            if handle:
                person = dbstate.db.get_person_from_handle(handle)
        if person is None:
            handle = self.uistate.get_active('Person')
            if handle:
                person = dbstate.db.get_person_from_handle(handle)
        if person is not None:
            family_list = person.get_family_handle_list()
            if len(family_list) > 0:
                fhandle = family_list[0] # first is primary
                fam = dbstate.db.get_family_from_handle(fhandle)
                father = mother = None
                handle = fam.get_father_handle()
                if handle:
                    father = dbstate.db.get_person_from_handle(handle)
                if father:
                    comment = _("Father : %(id)s : %(name)s") % {
                                                   'id': father.gramps_id,
                                                   'name': _nd.display(father)}
                    self._createmap_for_one_person(father, color,
                                                   place_list, reference)
                handle = fam.get_mother_handle()
                if handle:
                    mother = dbstate.db.get_person_from_handle(handle)
                if mother:
                    comment = _("Mother : %(id)s : %(name)s") % {
                                                   'id': mother.gramps_id,
                                                   'name': _nd.display(mother)}
                    self._createmap_for_one_person(mother, color,
                                                   place_list, reference)
                index = 0
                child_ref_list = fam.get_child_ref_list()
                if child_ref_list:
                    for child_ref in child_ref_list:
                        child = dbstate.db.get_person_from_handle(child_ref.ref)
                        if child:
                            index += 1
                            comment = _("Child : %(id)s - %(index)d "
                                        ": %(name)s") % {
                                            'id'    : child.gramps_id,
                                            'index' : index,
                                            'name'  : _nd.display(child)
                                         }
                            self._createmap_for_one_person(child, color,
                                                           place_list,
                                                           reference)
            else:
                comment = _("Person : %(id)s %(name)s has no family.") % {
                                'id' : person.gramps_id,
                                'name' : _nd.display(person)
                                }
                self._createmap_for_one_person(person, color,
                                               place_list, reference)

    def _createmap(self, family_x, color, place_list, reference):
        """
        Create all markers for each family's person in the database which has
        a lat/lon.
        """
        dbstate = self.dbstate
        self.cal = config.get('preferences.calendar-format-report')
        self.place_list = place_list
        self.place_without_coordinates = []
        self.minlat = self.maxlat = self.minlon = self.maxlon = 0.0
        #self.minyear = 9999
        #self.maxyear = 0
        latitude = ""
        longitude = ""
        self.place_list = []
        self.place_without_coordinates = []
        self.minlat = self.maxlat = self.minlon = self.maxlon = 0.0
        #family = self.dbstate.db.get_family_from_handle(family_x)
        family = family_x
        if family is None:
            handle = self.uistate.get_active('Person')
            person = None
            if handle:
                person = self.dbstate.db.get_family_from_handle(handle)
            if not person:
                return
            family_list = person.get_family_handle_list()
            for family_hdl in family_list:
                family = self.dbstate.db.get_family_from_handle(family_hdl)
                if family is not None:
                    self._createmap_for_one_family(family, color,
                                                   place_list, reference)
        else:
            self._createmap_for_one_family(family, color, place_list, reference)
        #self._create_markers()

    def bubble_message(self, event, lat, lon, marks):
        """
        Create the menu for the selected marker
        """
        self.menu = Gtk.Menu()
        menu = self.menu
        menu.set_title("family")
        events = []
        message = ""
        oldplace = ""
        prevmark = None
        for mark in marks:
            for plce in self.all_place_list:
                if plce[3] == mark[3] and plce[4] == mark[4]:
                    if plce[10] in events:
                        continue
                    else:
                        events.append(plce[10])

                    if plce[0] != oldplace:
                        message = "%s :" % plce[0]
                        self.add_place_bubble_message(event, lat, lon,
                                                      marks, menu,
                                                      message, plce)
                        oldplace = plce[0]
                        message = ""
                    evt = self.dbstate.db.get_event_from_gramps_id(plce[10])
                    # format the date as described in preferences.
                    date = displayer.display(evt.get_date_object())
                    if date == "":
                        date = _("Unknown")
                    if plce[11] == EventRoleType.PRIMARY:
                        message = "(%s) %s : %s" % (date, plce[2], plce[1])
                    elif plce[11] == EventRoleType.FAMILY:
                        (father_name,
                         mother_name) = self._get_father_and_mother_name(evt)
                        message = "(%s) %s : %s - %s" % (date, plce[7],
                                                         father_name,
                                                         mother_name)
                    else:
                        descr = evt.get_description()
                        if descr == "":
                            descr = _('No description')
                        message = "(%s) %s => %s" % (date, plce[11], descr)
                    prevmark = plce
                    add_item = Gtk.MenuItem(label=message)
                    add_item.show()
                    menu.append(add_item)
                    self.itemoption = Gtk.Menu()
                    itemoption = self.itemoption
                    itemoption.set_title(message)
                    itemoption.show()
                    add_item.set_submenu(itemoption)
                    modify = Gtk.MenuItem(label=_("Edit Event"))
                    modify.show()
                    modify.connect("activate", self.edit_event,
                                   event, lat, lon, prevmark)
                    itemoption.append(modify)
                    center = Gtk.MenuItem(label=_("Center on this place"))
                    center.show()
                    center.connect("activate", self.center_here,
                                   event, lat, lon, prevmark)
                    itemoption.append(center)
                    menu.show()
                    menu.popup(None, None, None,
                               None, event.button, event.time)
        return 0

    def add_specific_menu(self, menu, event, lat, lon):
        """
        Add specific entry to the navigation menu.
        """
        add_item = Gtk.MenuItem()
        add_item.show()
        menu.append(add_item)
        add_item = Gtk.MenuItem(
                        label=_("Choose and bookmark the new reference family"))
        add_item.connect("activate", self.select_family)
        add_item.show()
        menu.append(add_item)
        return

    def get_default_gramplets(self):
        """
        Define the default gramplets for the sidebar and bottombar.
        """
        return (("Person Filter",),
                ())

    def specific_options(self, configdialog):
        """
        Add specific entry to the preference menu.
        Must be done in the associated view.
        """
        grid = Gtk.Grid()
        grid.set_border_width(12)
        grid.set_column_spacing(6)
        grid.set_row_spacing(6)
        configdialog.add_text(grid,
                _('The meeting zone probability radius.\n'
                  'The colored zone is approximative.\n'
                  'The meeting zone is only shown for the reference family.\n'
                  'The value 9 means about 42 miles or 67 kms.\n'
                  'The value 1 means about 4.6 miles or 7.5 kms.\n'
                  'The value is in tenth of degree.'),
                1, line_wrap=False)
        self.config_meeting_slider = configdialog.add_slider(grid,
                "",
                2, 'geography.maximum_meeting_zone',
                (1, 9))
        return _('The selection parameters'), grid

    def config_connect(self):
        """
        used to monitor changes in the ini file
        """
        self._config.connect('geography.maximum_meeting_zone',
                          self.cb_update_meeting_radius)

    def cb_update_meeting_radius(self, client, cnxn_id, entry, data):
        """
        Called when the radius change
        """
        self.goto_handle(handle=None)

