# -*- coding:utf-8 -*-
## src/profile_window.py
##
## Copyright (C) 2003-2012 Yann Leboulanger <asterix AT lagaule.org>
## Copyright (C) 2005-2006 Nikos Kouremenos <kourem AT gmail.com>
## Copyright (C) 2006-2008 Jean-Marie Traissard <jim AT lapin.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/>.
##

# THIS FILE IS FOR **OUR** PROFILE (when we edit our INFO)

from gi.repository import Gtk
from gi.repository import GdkPixbuf
from gi.repository import GObject
import base64
import mimetypes
import os
import time

import gtkgui_helpers
import dialogs
import vcard

from common import gajim
from common import ged


class ProfileWindow:
    """
    Class for our information window
    """

    def __init__(self, account, transient_for=None):
        self.xml = gtkgui_helpers.get_gtk_builder('profile_window.ui')
        self.window = self.xml.get_object('profile_window')
        self.set_transient_for(transient_for)
        self.progressbar = self.xml.get_object('progressbar')
        self.statusbar = self.xml.get_object('statusbar')
        self.context_id = self.statusbar.get_context_id('profile')

        self.account = account
        self.jid = gajim.get_jid_from_account(account)

        self.dialog = None
        self.avatar_mime_type = None
        self.avatar_encoded = None
        self.message_id = self.statusbar.push(self.context_id,
            _('Retrieving profile...'))
        self.update_progressbar_timeout_id = GObject.timeout_add(100,
            self.update_progressbar)
        self.remove_statusbar_timeout_id = None

        # Create Image for avatar button
        image = Gtk.Image()
        self.xml.get_object('PHOTO_button').set_image(image)
        self.xml.connect_signals(self)
        gajim.ged.register_event_handler('vcard-published', ged.GUI1,
            self._nec_vcard_published)
        gajim.ged.register_event_handler('vcard-not-published', ged.GUI1,
            self._nec_vcard_not_published)
        gajim.ged.register_event_handler('vcard-received', ged.GUI1,
            self._nec_vcard_received)
        self.window.show_all()
        self.xml.get_object('ok_button').grab_focus()

    def on_information_notebook_switch_page(self, widget, page, page_num):
        GObject.idle_add(self.xml.get_object('ok_button').grab_focus)

    def update_progressbar(self):
        self.progressbar.pulse()
        return True # loop forever

    def remove_statusbar(self, message_id):
        self.statusbar.remove_message(self.context_id, message_id)
        self.remove_statusbar_timeout_id = None

    def on_profile_window_destroy(self, widget):
        if self.update_progressbar_timeout_id is not None:
            GObject.source_remove(self.update_progressbar_timeout_id)
        if self.remove_statusbar_timeout_id is not None:
            GObject.source_remove(self.remove_statusbar_timeout_id)
        gajim.ged.remove_event_handler('vcard-published', ged.GUI1,
            self._nec_vcard_published)
        gajim.ged.remove_event_handler('vcard-not-published', ged.GUI1,
            self._nec_vcard_not_published)
        gajim.ged.remove_event_handler('vcard-received', ged.GUI1,
            self._nec_vcard_received)
        del gajim.interface.instances[self.account]['profile']
        if self.dialog: # Image chooser dialog
            self.dialog.destroy()

    def on_profile_window_key_press_event(self, widget, event):
        if event.keyval == Gdk.KEY_Escape:
            self.window.destroy()

    def on_clear_button_clicked(self, widget):
        # empty the image
        button = self.xml.get_object('PHOTO_button')
        image = button.get_image()
        image.set_from_pixbuf(None)
        button.hide()
        text_button = self.xml.get_object('NOPHOTO_button')
        text_button.show()
        self.avatar_encoded = None
        self.avatar_mime_type = None

    def on_set_avatar_button_clicked(self, widget):
        def on_ok(widget, path_to_file):
            must_delete = False
            filesize = os.path.getsize(path_to_file) # in bytes
            invalid_file = False
            msg = ''
            if os.path.isfile(path_to_file):
                stat = os.stat(path_to_file)
                if stat[6] == 0:
                    invalid_file = True
                    msg = _('File is empty')
            else:
                invalid_file = True
                msg = _('File does not exist')
            if not invalid_file and filesize > 16384: # 16 kb
                try:
                    pixbuf = GdkPixbuf.Pixbuf.new_from_file(path_to_file)
                    # get the image at 'notification size'
                    # and hope that user did not specify in ACE crazy size
                    scaled_pixbuf = gtkgui_helpers.get_scaled_pixbuf(pixbuf,
                            'tooltip')
                except GObject.GError, msg: # unknown format
                    # msg should be string, not object instance
                    msg = str(msg)
                    invalid_file = True
            if invalid_file:
                if True: # keep identation
                    dialogs.ErrorDialog(_('Could not load image'), msg)
                    return
            if filesize > 16384:
                if scaled_pixbuf:
                    path_to_file = os.path.join(gajim.TMP,
                            'avatar_scaled.png')
                    scaled_pixbuf.save(path_to_file, 'png')
                    must_delete = True

            fd = open(path_to_file, 'rb')
            data = fd.read()
            pixbuf = gtkgui_helpers.get_pixbuf_from_data(data)
            try:
                # rescale it
                pixbuf = gtkgui_helpers.get_scaled_pixbuf(pixbuf, 'vcard')
            except AttributeError: # unknown format
                dialogs.ErrorDialog(_('Could not load image'))
                return
            self.dialog.destroy()
            self.dialog = None
            button = self.xml.get_object('PHOTO_button')
            image = button.get_image()
            image.set_from_pixbuf(pixbuf)
            button.show()
            text_button = self.xml.get_object('NOPHOTO_button')
            text_button.hide()
            self.avatar_encoded = base64.encodestring(data)
            # returns None if unknown type
            self.avatar_mime_type = mimetypes.guess_type(path_to_file)[0]
            if must_delete:
                try:
                    os.remove(path_to_file)
                except OSError:
                    gajim.log.debug('Cannot remove %s' % path_to_file)

        def on_clear(widget):
            self.dialog.destroy()
            self.dialog = None
            self.on_clear_button_clicked(widget)

        def on_cancel(widget):
            self.dialog.destroy()
            self.dialog = None

        if self.dialog:
            self.dialog.present()
        else:
            self.dialog = dialogs.AvatarChooserDialog(on_response_ok = on_ok,
                    on_response_cancel = on_cancel, on_response_clear = on_clear)

    def on_PHOTO_button_press_event(self, widget, event):
        """
        If right-clicked, show popup
        """
        if event.button == 3 and self.avatar_encoded: # right click
            menu = Gtk.Menu()

            # Try to get pixbuf
            pixbuf = gtkgui_helpers.get_avatar_pixbuf_from_cache(self.jid,
                    use_local=False)

            if pixbuf not in (None, 'ask'):
                nick = gajim.config.get_per('accounts', self.account, 'name')
                menuitem = Gtk.ImageMenuItem(Gtk.STOCK_SAVE_AS)
                menuitem.connect('activate',
                    gtkgui_helpers.on_avatar_save_as_menuitem_activate,
                    self.jid, nick)
                menu.append(menuitem)
            # show clear
            menuitem = Gtk.ImageMenuItem(Gtk.STOCK_CLEAR)
            menuitem.connect('activate', self.on_clear_button_clicked)
            menu.append(menuitem)
            menu.connect('selection-done', lambda w:w.destroy())
            # show the menu
            menu.show_all()
            menu.popup(None, None, None, event.button, event.time)
        elif event.button == 1: # left click
            self.on_set_avatar_button_clicked(widget)

    def on_BDAY_entry_focus_out_event(self, widget, event):
        txt = widget.get_text()
        if not txt:
            return
        try:
            time.strptime(txt, '%Y-%m-%d')
        except ValueError:
            if not widget.is_focus():
                pritext = _('Wrong date format')
                dialogs.ErrorDialog(pritext, _('Format of the date must be '
                    'YYYY-MM-DD'))
                GObject.idle_add(lambda: widget.grab_focus())
            return True

    def set_value(self, entry_name, value):
        try:
            widget = self.xml.get_object(entry_name)
            val = widget.get_text()
            if val:
                value = val + ' / ' + value
            widget.set_text(value)
        except AttributeError:
            pass

    def set_values(self, vcard_):
        button = self.xml.get_object('PHOTO_button')
        image = button.get_image()
        text_button = self.xml.get_object('NOPHOTO_button')
        if not 'PHOTO' in vcard_:
            # set default image
            image.set_from_pixbuf(None)
            button.hide()
            text_button.show()
        for i in vcard_.keys():
            if i == 'PHOTO':
                pixbuf, self.avatar_encoded, self.avatar_mime_type = \
                        vcard.get_avatar_pixbuf_encoded_mime(vcard_[i])
                if not pixbuf:
                    image.set_from_pixbuf(None)
                    button.hide()
                    text_button.show()
                    continue
                pixbuf = gtkgui_helpers.get_scaled_pixbuf(pixbuf, 'vcard')
                image.set_from_pixbuf(pixbuf)
                button.show()
                text_button.hide()
                continue
            if i == 'ADR' or i == 'TEL' or i == 'EMAIL':
                for entry in vcard_[i]:
                    add_on = '_HOME'
                    if 'WORK' in entry:
                        add_on = '_WORK'
                    for j in entry.keys():
                        self.set_value(i + add_on + '_' + j + '_entry', entry[j])
            if isinstance(vcard_[i], dict):
                for j in vcard_[i].keys():
                    self.set_value(i + '_' + j + '_entry', vcard_[i][j])
            else:
                if i == 'DESC':
                    self.xml.get_object('DESC_textview').get_buffer().set_text(
                            vcard_[i], 0)
                else:
                    self.set_value(i + '_entry', vcard_[i])
        if self.update_progressbar_timeout_id is not None:
            if self.message_id:
                self.statusbar.remove_message(self.context_id, self.message_id)
            self.message_id = self.statusbar.push(self.context_id,
                    _('Information received'))
            self.remove_statusbar_timeout_id = GObject.timeout_add_seconds(3,
                    self.remove_statusbar, self.message_id)
            GObject.source_remove(self.update_progressbar_timeout_id)
            self.progressbar.hide()
            self.progressbar.set_fraction(0)
            self.update_progressbar_timeout_id = None

    def _nec_vcard_received(self, obj):
        if obj.conn.name != self.account:
            return
        if obj.jid != self.jid:
            return
        self.set_values(obj.vcard_dict)

    def add_to_vcard(self, vcard_, entry, txt):
        """
        Add an information to the vCard dictionary
        """
        entries = entry.split('_')
        loc = vcard_
        if len(entries) == 3: # We need to use lists
            if entries[0] not in loc:
                loc[entries[0]] = []
            found = False
            for e in loc[entries[0]]:
                if entries[1] in e:
                    e[entries[2]] = txt
                    break
            else:
                loc[entries[0]].append({entries[1]: '', entries[2]: txt})
            return vcard_
        while len(entries) > 1:
            if entries[0] not in loc:
                loc[entries[0]] = {}
            loc = loc[entries[0]]
            del entries[0]
        loc[entries[0]] = txt
        return vcard_

    def make_vcard(self):
        """
        Make the vCard dictionary
        """
        entries = ['FN', 'NICKNAME', 'BDAY', 'EMAIL_HOME_USERID', 'URL',
                'TEL_HOME_NUMBER', 'N_FAMILY', 'N_GIVEN', 'N_MIDDLE', 'N_PREFIX',
                'N_SUFFIX', 'ADR_HOME_STREET', 'ADR_HOME_EXTADR', 'ADR_HOME_LOCALITY',
                'ADR_HOME_REGION', 'ADR_HOME_PCODE', 'ADR_HOME_CTRY', 'ORG_ORGNAME',
                'ORG_ORGUNIT', 'TITLE', 'ROLE', 'TEL_WORK_NUMBER', 'EMAIL_WORK_USERID',
                'ADR_WORK_STREET', 'ADR_WORK_EXTADR', 'ADR_WORK_LOCALITY',
                'ADR_WORK_REGION', 'ADR_WORK_PCODE', 'ADR_WORK_CTRY']
        vcard_ = {}
        for e in entries:
            txt = self.xml.get_object(e + '_entry').get_text().decode('utf-8')
            if txt != '':
                vcard_ = self.add_to_vcard(vcard_, e, txt)

        # DESC textview
        buff = self.xml.get_object('DESC_textview').get_buffer()
        start_iter = buff.get_start_iter()
        end_iter = buff.get_end_iter()
        txt = buff.get_text(start_iter, end_iter, False)
        if txt != '':
            vcard_['DESC'] = txt.decode('utf-8')

        # Avatar
        if self.avatar_encoded:
            vcard_['PHOTO'] = {'BINVAL': self.avatar_encoded}
            if self.avatar_mime_type:
                vcard_['PHOTO']['TYPE'] = self.avatar_mime_type
        return vcard_

    def on_ok_button_clicked(self, widget):
        if self.update_progressbar_timeout_id:
            # Operation in progress
            return
        if gajim.connections[self.account].connected < 2:
            dialogs.ErrorDialog(_('You are not connected to the server'),
                    _('Without a connection you can not publish your contact '
                    'information.'))
            return
        vcard_ = self.make_vcard()
        nick = ''
        if 'NICKNAME' in vcard_:
            nick = vcard_['NICKNAME']
            gajim.connections[self.account].send_nickname(nick)
        if nick == '':
            nick = gajim.config.get_per('accounts', self.account, 'name')
        gajim.nicks[self.account] = nick
        gajim.connections[self.account].send_vcard(vcard_)
        self.message_id = self.statusbar.push(self.context_id,
                _('Sending profile...'))
        self.progressbar.show()
        self.update_progressbar_timeout_id = GObject.timeout_add(100,
                self.update_progressbar)

    def _nec_vcard_published(self, obj):
        if obj.conn.name != self.account:
            return
        if self.update_progressbar_timeout_id is not None:
            GObject.source_remove(self.update_progressbar_timeout_id)
            self.update_progressbar_timeout_id = None
        self.window.destroy()

    def _nec_vcard_not_published(self, obj):
        if obj.conn.name != self.account:
            return
        if self.message_id:
            self.statusbar.remove_message(self.context_id, self.message_id)
        self.message_id = self.statusbar.push(self.context_id,
            _('Information NOT published'))
        self.remove_statusbar_timeout_id = GObject.timeout_add_seconds(3,
            self.remove_statusbar, self.message_id)
        if self.update_progressbar_timeout_id is not None:
            GObject.source_remove(self.update_progressbar_timeout_id)
            self.progressbar.set_fraction(0)
            self.update_progressbar_timeout_id = None
        dialogs.InformationDialog(_('vCard publication failed'),
            _('There was an error while publishing your personal information, '
            'try again later.'))

    def on_cancel_button_clicked(self, widget):
        self.window.destroy()