# -*- coding: utf-8 -*-
#
# export.py -- export plugin for xviewer
#
# Copyright (c) 2012  Jendrik Seipp (jendrikseipp@web.de)
#
# 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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

import os
import shutil

from gi.repository import GObject, Xviewer, Gio, Gtk, PeasGtk


ui_str = """
<ui>
    <menubar name="MainMenu">
        <menu name="ToolsMenu" action="Tools">
            <separator/>
            <menuitem name="Export" action="Export"/>
            <separator/>
        </menu>
    </menubar>
</ui>
"""

EXPORT_DIR = os.path.join(os.path.expanduser('~'), 'exported-images')
BASE_KEY = 'org.x.viewer.plugins.export-to-folder'

class ExportPlugin(GObject.Object, Xviewer.WindowActivatable):
    window = GObject.property(type=Xviewer.Window)

    def __init__(self):
        GObject.Object.__init__(self)
        self.settings = Gio.Settings.new(BASE_KEY)

    @property
    def export_dir(self):
        target_dir = self.settings.get_string('target-folder')
        if target_dir == "":
            return EXPORT_DIR

        return target_dir

    def do_activate(self):
        ui_manager = self.window.get_ui_manager()
        self.action_group = Gtk.ActionGroup(name='Export')
        self.action_group.add_actions([('Export', None,
                        _('_Export'), "E", None, self.export_cb)], self.window)
        ui_manager.insert_action_group(self.action_group, 0)
        self.ui_id = ui_manager.add_ui_from_string(ui_str)

    def do_deactivate(self):
        ui_manager = self.window.get_ui_manager().remove_ui(self.ui_id);

    def export_cb(self, action, window):
        # Get path to current image.
        image = window.get_image()
        if not image:
            print('No image can be exported')
            return
        src = image.get_file().get_path()
        name = os.path.basename(src)
        dest = os.path.join(self.export_dir, name)
        # Create directory if it doesn't exist.
        try:
            os.makedirs(self.export_dir)
        except OSError:
            pass
        shutil.copy2(src, dest)
        print('Copied %s into %s' % (name, self.export_dir))


class ExportConfigurable(GObject.Object, PeasGtk.Configurable):

    def __init__(self):
        GObject.Object.__init__(self)
        self.settings = Gio.Settings.new(BASE_KEY)

    def do_create_configure_widget(self):
        # Create preference dialog
        signals = {'current_folder_changed_cb': self.current_folder_changed_cb}
        builder = Gtk.Builder()
        builder.set_translation_domain('xviewer-plugins')
        builder.add_from_file(os.path.join(self.plugin_info.get_data_dir(),
                                           'preferences_dialog.ui'))
        builder.connect_signals(signals)

        self.export_dir_button = builder.get_object('export_dir_button')
        self.preferences_dialog = builder.get_object('preferences_box')
        target_dir =  self.settings.get_string('target-folder')
        if target_dir == "":
            target_dir = EXPORT_DIR;
        self.export_dir_button.set_current_folder(target_dir)

        return self.preferences_dialog

    def current_folder_changed_cb(self, button):
        self.settings.set_string('target-folder', button.get_current_folder())