# -*- coding: utf-8 -*-
#
## plugins/triggers/triggers.py
##
## Copyright (C) 2011 Yann Leboulanger <asterix AT lagaule.org>
##
## This file is part of Gajim.
##
## Gajim 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; version 3 only.
##
## Gajim 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 Gajim. If not, see <http://www.gnu.org/licenses/>.
##

import gtk
import sys

from common import gajim
from plugins import GajimPlugin
from plugins.helpers import log_calls, log
from plugins.gui import GajimPluginConfigDialog
from common import i18n
from common import ged
from common import helpers


class Triggers(GajimPlugin):

    @log_calls('TriggersPlugin')
    def init(self):
        self.config_dialog = TriggersPluginConfigDialog(self)
        self.config_default_values = {}

        self.events_handlers = {'notification' : (ged.PREGUI, self._nec_notif),
            'decrypted-message-received': (ged.PREGUI2,
            self._nec_decrypted_message_received)}

    def _check_rule_recipients(self, obj, rule):
        rule_recipients = [t.strip() for t in rule['recipients'].split(',')]
        if rule['recipient_type'] == 'contact' and obj.jid not in \
        rule_recipients:
            return False
        contact_groups = gajim.contacts.get_first_contact_from_jid(
            obj.conn.name, obj.jid).groups
        group_found = False
        for group in contact_groups:
            if group in rule_recipients:
                group_found = True
                break
        if rule['recipient_type'] == 'group' and not group_found:
            return False

        return True

    def _check_rule_status(self, obj, rule):
        rule_statuses = rule['status'].split()
        our_status = gajim.SHOW_LIST[obj.conn.connected]
        if rule['status'] != 'all' and our_status not in rule_statuses:
            return False

        return True

    def _check_rule_tab_opened(self, obj, rule):
        if rule['tab_opened'] == 'both':
            return True
        tab_opened = False
        if gajim.interface.msg_win_mgr.get_control(obj.jid, obj.conn.name):
            tab_opened = True
        if tab_opened and rule['tab_opened'] == 'no':
            return False
        elif not tab_opened and rule['tab_opened'] == 'yes':
            return False

        return True

    def check_rule_apply_notif(self, obj, rule):
        # Check notification type
        notif_type = ''
        if obj.notif_type == 'msg':
            notif_type = 'message_received'
        if notif_type != rule['event']:
            return False

        # notification type is ok. Now check recipient
        if not self._check_rule_recipients(obj, rule):
            return False

        # recipient is ok. Now check our status
        if not self._check_rule_status(obj, rule):
            return False

        # our_status is ok. Now check opened chat window
        if not self._check_rule_tab_opened(obj, rule):
            return False

        # All is ok
        return True

    def check_rule_apply_decrypted_msg(self, obj, rule):
        # Check notification type
        if rule['event'] != 'message_received':
            return False

        # notification type is ok. Now check recipient
        if not self._check_rule_recipients(obj, rule):
            return False

        # recipient is ok. Now check our status
        if not self._check_rule_status(obj, rule):
            return False

        # our_status is ok. Now check opened chat window
        if not self._check_rule_tab_opened(obj, rule):
            return False

        # All is ok
        return True

    def apply_rule(self, obj, rule):
        if rule['sound'] == 'no':
            obj.do_sound = False
        elif rule['sound'] == 'yes':
            obj.do_sound = True
            obj.sound_event = ''
            obj.sound_file = rule['sound_file']

        if rule['popup'] == 'no':
            obj.do_popup = False
        elif rule['popup'] == 'yes':
            obj.do_popup = True

        if rule['run_command']:
            obj.do_command = True
            obj.command = rule['command']
        else:
            obj.do_command = False

        if rule['systray'] == 'no':
            obj.show_in_notification_area = False
        elif rule['systray'] == 'yes':
            obj.show_in_notification_area = True

        if rule['roster'] == 'no':
            obj.show_in_roster = False
        elif rule['roster'] == 'yes':
            obj.show_in_roster = True

#        if rule['urgency_hint'] == 'no':
#            ?? not in obj actions
#        elif rule['urgency_hint'] == 'yes':

    def _nec_notif(self, obj):
        # check rules in order
        rules_num = [int(i) for i in self.config.keys()]
        rules_num.sort()
        for num in rules_num:
            if self.check_rule_apply_notif(obj, self.config[str(num)]):
                self.apply_rule(obj, self.config[str(num)])
                # Should we stop after first valid rule ?
                # break

    def _nec_decrypted_message_received(self, obj):
        rules_num = [int(i) for i in self.config.keys()]
        rules_num.sort()
        for num in rules_num:
            rule = self.config[str(num)]
            if self.check_rule_apply_decrypted_msg(obj, rule):
                if rule['auto_open'] == 'no':
                    obj.popup = False
                elif rule['auto_open'] == 'yes':
                    obj.popup = True


class TriggersPluginConfigDialog(GajimPluginConfigDialog):
    events_list = ['message_received']#, 'contact_connected',
        #'contact_disconnected', 'contact_change_status', 'gc_msg_highlight',
        #'gc_msg']
    recipient_types_list = ['contact', 'group', 'all']
    config_options = ['event', 'recipient_type', 'recipients', 'status',
        'tab_opened', 'sound', 'sound_file', 'popup', 'auto_open',
        'run_command', 'command', 'systray', 'roster', 'urgency_hint']

    def init(self):
        self.GTK_BUILDER_FILE_PATH = self.plugin.local_file_path(
            'config_dialog.ui')
        self.xml = gtk.Builder()
        self.xml.add_objects_from_file(self.GTK_BUILDER_FILE_PATH,
            ['vbox', 'liststore1', 'liststore2'])
        vbox = self.xml.get_object('vbox')
        self.child.pack_start(vbox)

        self.xml.connect_signals(self)
        self.connect('hide', self.on_hide)

    def on_run(self):
        # fill window
        for w in ('conditions_treeview', 'config_vbox', 'event_combobox',
        'recipient_type_combobox', 'recipient_list_entry', 'delete_button',
        'status_hbox', 'use_sound_cb', 'disable_sound_cb', 'use_popup_cb',
        'disable_popup_cb', 'use_auto_open_cb', 'disable_auto_open_cb',
        'use_systray_cb', 'disable_systray_cb', 'use_roster_cb',
        'disable_roster_cb', 'tab_opened_cb', 'not_tab_opened_cb',
        'sound_entry', 'sound_file_hbox', 'up_button', 'down_button',
        'run_command_cb', 'command_entry', 'use_urgency_hint_cb',
        'disable_urgency_hint_cb'):
            self.__dict__[w] = self.xml.get_object(w)

        self.config = {}
        for n in self.plugin.config:
            self.config[int(n)] = self.plugin.config[n]

        # Contains status checkboxes
        childs = self.status_hbox.get_children()

        self.all_status_rb = childs[0]
        self.special_status_rb = childs[1]
        self.online_cb = childs[2]
        self.away_cb = childs[3]
        self.xa_cb = childs[4]
        self.dnd_cb = childs[5]
        self.invisible_cb = childs[6]

        if not self.conditions_treeview.get_column(0):
            # window never opened
            model = gtk.ListStore(int, str)
            model.set_sort_column_id(0, gtk.SORT_ASCENDING)
            self.conditions_treeview.set_model(model)

            # means number
            col = gtk.TreeViewColumn(_('#'))
            self.conditions_treeview.append_column(col)
            renderer = gtk.CellRendererText()
            col.pack_start(renderer, expand=False)
            col.set_attributes(renderer, text=0)

            col = gtk.TreeViewColumn(_('Condition'))
            self.conditions_treeview.append_column(col)
            renderer = gtk.CellRendererText()
            col.pack_start(renderer, expand=True)
            col.set_attributes(renderer, text=1)
        else:
            model = self.conditions_treeview.get_model()

        model.clear()

        # Fill conditions_treeview
        num = 0
        while num in self.config:
            iter_ = model.append((num, ''))
            path = model.get_path(iter_)
            self.conditions_treeview.set_cursor(path)
            self.active_num = num
            self.initiate_rule_state()
            self.set_treeview_string()
            num += 1

        # No rule selected at init time
        self.conditions_treeview.get_selection().unselect_all()
        self.active_num = -1
        self.config_vbox.set_sensitive(False)
        self.delete_button.set_sensitive(False)
        self.down_button.set_sensitive(False)
        self.up_button.set_sensitive(False)

    def initiate_rule_state(self):
        """
        Set values for all widgets
        """
        if self.active_num < 0:
            return
        # event
        value = self.config[self.active_num]['event']
        if value:
            self.event_combobox.set_active(self.events_list.index(value))
        else:
            self.event_combobox.set_active(-1)
        # recipient_type
        value = self.config[self.active_num]['recipient_type']
        if value:
            self.recipient_type_combobox.set_active(
                self.recipient_types_list.index(value))
        else:
            self.recipient_type_combobox.set_active(-1)
        # recipient
        value = self.config[self.active_num]['recipients']
        if not value:
            value = ''
        self.recipient_list_entry.set_text(value)
        # status
        value = self.config[self.active_num]['status']
        if value == 'all':
            self.all_status_rb.set_active(True)
        else:
            self.special_status_rb.set_active(True)
            values = value.split()
            for v in ('online', 'away', 'xa', 'dnd', 'invisible'):
                if v in values:
                    self.__dict__[v + '_cb'].set_active(True)
                else:
                    self.__dict__[v + '_cb'].set_active(False)
        self.on_status_radiobutton_toggled(self.all_status_rb)

        # tab_opened
        value = self.config[self.active_num]['tab_opened']
        self.tab_opened_cb.set_active(True)
        self.not_tab_opened_cb.set_active(True)
        if value == 'no':
            self.tab_opened_cb.set_active(False)
        elif value == 'yes':
            self.not_tab_opened_cb.set_active(False)

        # sound_file
        value = self.config[self.active_num]['sound_file']
        self.sound_entry.set_text(value)

        # sound, popup, auto_open, systray, roster
        for option in ('sound', 'popup', 'auto_open', 'systray', 'roster',
        'urgency_hint'):
            value = self.config[self.active_num][option]
            if value == 'yes':
                self.__dict__['use_' + option + '_cb'].set_active(True)
            else:
                self.__dict__['use_' + option + '_cb'].set_active(False)
            if value == 'no':
                self.__dict__['disable_' + option + '_cb'].set_active(True)
            else:
                self.__dict__['disable_' + option + '_cb'].set_active(False)

        # run_command
        value = self.config[self.active_num]['run_command']
        self.run_command_cb.set_active(value)

        # command
        value = self.config[self.active_num]['command']
        self.command_entry.set_text(value)

    def set_treeview_string(self):
        (model, iter_) = self.conditions_treeview.get_selection().get_selected()
        if not iter_:
            return
        event = self.event_combobox.get_active_text()
        recipient_type = self.recipient_type_combobox.get_active_text()
        recipient = ''
        if recipient_type != 'everybody':
            recipient = self.recipient_list_entry.get_text()
        if self.all_status_rb.get_active():
            status = ''
        else:
            status = _('when I am ')
            for st in ('online', 'away', 'xa', 'dnd', 'invisible'):
                if self.__dict__[st + '_cb'].get_active():
                    status += helpers.get_uf_show(st) + ' '
        model[iter_][1] = "When %s for %s %s %s" % (event, recipient_type,
            recipient, status)

    def on_conditions_treeview_cursor_changed(self, widget):
        (model, iter_) = widget.get_selection().get_selected()
        if not iter_:
            self.active_num = ''
            return
        self.active_num = model[iter_][0]
        if self.active_num == '0':
            self.up_button.set_sensitive(False)
        else:
            self.up_button.set_sensitive(True)
        max = self.conditions_treeview.get_model().iter_n_children(None)
        if self.active_num == max - 1:
            self.down_button.set_sensitive(False)
        else:
            self.down_button.set_sensitive(True)
        self.initiate_rule_state()
        self.config_vbox.set_sensitive(True)
        self.delete_button.set_sensitive(True)

    def on_new_button_clicked(self, widget):
        model = self.conditions_treeview.get_model()
        num = self.conditions_treeview.get_model().iter_n_children(None)
        self.config[num] = {'event': '', 'recipient_type': 'all',
            'recipients': '', 'status': 'all', 'tab_opened': 'both',
            'sound': '', 'sound_file': '', 'popup': '', 'auto_open': '',
            'run_command': False, 'command': '', 'systray': '', 'roster': '',
            'urgency_hint': False}
        iter_ = model.append((num, ''))
        path = model.get_path(iter_)
        self.conditions_treeview.set_cursor(path)
        self.active_num = num
        self.set_treeview_string()
        self.config_vbox.set_sensitive(True)

    def on_delete_button_clicked(self, widget):
        (model, iter_) = self.conditions_treeview.get_selection().get_selected()
        if not iter_:
            return
        # up all others
        iter2 = model.iter_next(iter_)
        num = self.active_num
        while iter2:
            num = model[iter2][0]
            model[iter2][0] = num - 1
            self.config[num-1] = self.config[num].copy()
            iter2 = model.iter_next(iter2)
        model.remove(iter_)
        del self.config[num]
        self.active_num = ''
        self.config_vbox.set_sensitive(False)
        self.delete_button.set_sensitive(False)
        self.up_button.set_sensitive(False)
        self.down_button.set_sensitive(False)

    def on_up_button_clicked(self, widget):
        (model, iter_) = self.conditions_treeview.get_selection().get_selected()
        if not iter_:
            return
        conf = self.config[self.active_num].copy()
        self.config[self.active_num] = self.config[self.active_num - 1]
        self.config[self.active_num - 1] = conf

        model[iter_][0] =self.active_num - 1
        # get previous iter
        path = model.get_path(iter_)
        iter_ = model.get_iter((path[0] - 1,))
        model[iter_][0] = self.active_num
        self.on_conditions_treeview_cursor_changed(self.conditions_treeview)

    def on_down_button_clicked(self, widget):
        (model, iter_) = self.conditions_treeview.get_selection().get_selected()
        if not iter_:
            return
        conf = self.config[self.active_num].copy()
        self.config[self.active_num] = self.config[self.active_num + 1]
        self.config[self.active_num + 1] = conf

        model[iter_][0] = self.active_num + 1
        iter_ = model.iter_next(iter_)
        model[iter_][0] = self.active_num
        self.on_conditions_treeview_cursor_changed(self.conditions_treeview)

    def on_event_combobox_changed(self, widget):
        if self.active_num < 0:
            return
        active = self.event_combobox.get_active()
        if active == -1:
            event = ''
        else:
            event = self.events_list[active]
        self.config[self.active_num]['event'] = event
        self.set_treeview_string()

    def on_recipient_type_combobox_changed(self, widget):
        if self.active_num < 0:
            return
        recipient_type = self.recipient_types_list[
            self.recipient_type_combobox.get_active()]
        self.config[self.active_num]['recipient_type'] = recipient_type
        if recipient_type == 'all':
            self.recipient_list_entry.hide()
        else:
            self.recipient_list_entry.show()
        self.set_treeview_string()

    def on_recipient_list_entry_changed(self, widget):
        if self.active_num < 0:
            return
        recipients = widget.get_text().decode('utf-8')
        #TODO: do some check
        self.config[self.active_num]['recipients'] = recipients
        self.set_treeview_string()

    def set_status_config(self):
        if self.active_num < 0:
            return
        status = ''
        for st in ('online', 'away', 'xa', 'dnd', 'invisible'):
            if self.__dict__[st + '_cb'].get_active():
                status += st + ' '
        if status:
            status = status[:-1]
        self.config[self.active_num]['status'] = status
        self.set_treeview_string()

    def on_status_radiobutton_toggled(self, widget):
        if self.active_num < 0:
            return
        if self.all_status_rb.get_active():
            self.config[self.active_num]['status'] = 'all'
            # 'All status' clicked
            for st in ('online', 'away', 'xa', 'dnd', 'invisible'):
                self.__dict__[st + '_cb'].hide()

            self.special_status_rb.show()
        else:
            self.set_status_config()
            # 'special status' clicked
            for st in ('online', 'away', 'xa', 'dnd', 'invisible'):
                self.__dict__[st + '_cb'].show()

            self.special_status_rb.hide()
        self.set_treeview_string()

    def on_status_cb_toggled(self, widget):
        if self.active_num < 0:
            return
        self.set_status_config()

    # tab_opened OR (not xor) not_tab_opened must be active
    def on_tab_opened_cb_toggled(self, widget):
        if self.active_num < 0:
            return
        if self.tab_opened_cb.get_active():
            if self.not_tab_opened_cb.get_active():
                self.config[self.active_num]['tab_opened'] = 'both'
            else:
                self.config[self.active_num]['tab_opened'] = 'yes'
        else:
            self.not_tab_opened_cb.set_active(True)
            self.config[self.active_num]['tab_opened'] = 'no'

    def on_not_tab_opened_cb_toggled(self, widget):
        if self.active_num < 0:
            return
        if self.not_tab_opened_cb.get_active():
            if self.tab_opened_cb.get_active():
                self.config[self.active_num]['tab_opened'] = 'both'
            else:
                self.config[self.active_num]['tab_opened'] = 'no'
        else:
            self.tab_opened_cb.set_active(True)
            self.config[self.active_num]['tab_opened'] = 'yes'

    def on_use_it_toggled(self, widget, oposite_widget, option):
        if widget.get_active():
            if oposite_widget.get_active():
                oposite_widget.set_active(False)
            self.config[self.active_num][option] = 'yes'
        elif oposite_widget.get_active():
            self.config[self.active_num][option] = 'no'
        else:
            self.config[self.active_num][option] = ''

    def on_disable_it_toggled(self, widget, oposite_widget, option):
        if widget.get_active():
            if oposite_widget.get_active():
                oposite_widget.set_active(False)
            self.config[self.active_num][option] = 'no'
        elif oposite_widget.get_active():
            self.config[self.active_num][option] = 'yes'
        else:
            self.config[self.active_num][option] = ''

    def on_use_sound_cb_toggled(self, widget):
        self.on_use_it_toggled(widget, self.disable_sound_cb, 'sound')
        if widget.get_active():
            self.sound_file_hbox.set_sensitive(True)
        else:
            self.sound_file_hbox.set_sensitive(False)

    def on_browse_for_sounds_button_clicked(self, widget, data=None):
        if self.active_num < 0:
            return

        def on_ok(widget, path_to_snd_file):
            dialog.destroy()
            if not path_to_snd_file:
                path_to_snd_file = ''
            self.config[self.active_num]['sound_file'] = path_to_snd_file
            self.sound_entry.set_text(path_to_snd_file)

        path_to_snd_file = self.sound_entry.get_text().decode('utf-8')
        path_to_snd_file = os.path.join(os.getcwd(), path_to_snd_file)
        dialog = SoundChooserDialog(path_to_snd_file, on_ok)

    def on_play_button_clicked(self, widget):
        helpers.play_sound_file(self.sound_entry.get_text().decode('utf-8'))

    def on_disable_sound_cb_toggled(self, widget):
        self.on_disable_it_toggled(widget, self.use_sound_cb, 'sound')

    def on_sound_entry_changed(self, widget):
        self.config[self.active_num]['sound_file'] = widget.get_text().\
            decode('utf-8')

    def on_use_popup_cb_toggled(self, widget):
        self.on_use_it_toggled(widget, self.disable_popup_cb, 'popup')

    def on_disable_popup_cb_toggled(self, widget):
        self.on_disable_it_toggled(widget, self.use_popup_cb, 'popup')

    def on_use_auto_open_cb_toggled(self, widget):
        self.on_use_it_toggled(widget, self.disable_auto_open_cb, 'auto_open')

    def on_disable_auto_open_cb_toggled(self, widget):
        self.on_disable_it_toggled(widget, self.use_auto_open_cb, 'auto_open')

    def on_run_command_cb_toggled(self, widget):
        self.config[self.active_num]['run_command'] = widget.get_active()
        if widget.get_active():
            self.command_entry.set_sensitive(True)
        else:
            self.command_entry.set_sensitive(False)

    def on_command_entry_changed(self, widget):
        self.config[self.active_num]['command'] = widget.get_text().\
            decode('utf-8')

    def on_use_systray_cb_toggled(self, widget):
        self.on_use_it_toggled(widget, self.disable_systray_cb, 'systray')

    def on_disable_systray_cb_toggled(self, widget):
        self.on_disable_it_toggled(widget, self.use_systray_cb, 'systray')

    def on_use_roster_cb_toggled(self, widget):
        self.on_use_it_toggled(widget, self.disable_roster_cb, 'roster')

    def on_disable_roster_cb_toggled(self, widget):
        self.on_disable_it_toggled(widget, self.use_roster_cb, 'roster')

    def on_use_urgency_hint_cb_toggled(self, widget):
        self.on_use_it_toggled(widget, self.disable_urgency_hint_cb,
            'uregency_hint')

    def on_disable_urgency_hint_cb_toggled(self, widget):
        self.on_disable_it_toggled(widget, self.use_urgency_hint_cb,
            'uregency_hint')

    def on_hide(self, widget):
        # save config
        for n in self.plugin.config:
            del self.plugin.config[n]
        for n in self.config:
            self.plugin.config[str(n)] = self.config[n]