#
# gtkui.py
#
# Copyright (C) 2007-2009 Andrew Resch <andrewresch@gmail.com>
#
# Deluge is free software.
#
# You may redistribute it and/or modify it under the terms of the
# GNU General Public License, as published by the Free Software
# Foundation; either version 3 of the License, or (at your option)
# any later version.
#
# deluge 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 deluge.    If not, write to:
# 	The Free Software Foundation, Inc.,
# 	51 Franklin Street, Fifth Floor
# 	Boston, MA  02110-1301, USA.
#
#    In addition, as a special exception, the copyright holders give
#    permission to link the code of portions of this program with the OpenSSL
#    library.
#    You must obey the GNU General Public License in all respects for all of
#    the code used other than OpenSSL. If you modify file(s) with this
#    exception, you may extend this exception to your version of the file(s),
#    but you are not obligated to do so. If you do not wish to do so, delete
#    this exception statement from your version. If you delete this exception
#    statement from all source files in the program, then also delete it here.
#
#
from deluge.log import LOG as log

import gobject
gobject.set_prgname("deluge")

# Install the twisted reactor
from twisted.internet import gtk2reactor

try:
    from twisted.internet.error import ReactorAlreadyInstalledError
except ImportError:
    # ReactorAlreadyInstalledError not available in Twisted version < 10
    pass

try:
    reactor = gtk2reactor.install()
except ReactorAlreadyInstalledError:
    # Running unit tests so trial already installed a rector
    pass

import gettext
import locale
import pkg_resources
import gtk, gtk.glade
import sys
import warnings

try:
    from setproctitle import setproctitle, getproctitle
except ImportError:
    setproctitle = lambda t: None
    getproctitle = lambda: None

# Initialize gettext
try:
    locale.setlocale(locale.LC_ALL, '')
    if hasattr(locale, "bindtextdomain"):
        locale.bindtextdomain("deluge", pkg_resources.resource_filename("deluge", "i18n"))
    if hasattr(locale, "textdomain"):
        locale.textdomain("deluge")
    gettext.bindtextdomain("deluge", pkg_resources.resource_filename("deluge", "i18n"))
    gettext.textdomain("deluge")
    gettext.install("deluge", pkg_resources.resource_filename("deluge", "i18n"))
    gtk.glade.bindtextdomain("deluge", pkg_resources.resource_filename("deluge", "i18n"))
    gtk.glade.textdomain("deluge")
except Exception, e:
    log.error("Unable to initialize gettext/locale!")
    log.exception(e)
    import __builtin__
    __builtin__.__dict__["_"] = lambda x: x

import deluge.component as component
from deluge.ui.client import client
from mainwindow import MainWindow
from menubar import MenuBar
from toolbar import ToolBar
from torrentview import TorrentView
from torrentdetails import TorrentDetails
from sidebar import SideBar
from filtertreeview import FilterTreeView
from preferences import Preferences
from systemtray import SystemTray
from statusbar import StatusBar
from connectionmanager import ConnectionManager
from pluginmanager import PluginManager
from ipcinterface import IPCInterface
from deluge.ui.tracker_icons import TrackerIcons
from queuedtorrents import QueuedTorrents
from addtorrentdialog import AddTorrentDialog
from deluge.ui.sessionproxy import SessionProxy
import dialogs
import common

import deluge.configmanager
import deluge.common
import deluge.error

from deluge.ui.ui import _UI

class Gtk(_UI):

    help = """Starts the Deluge GTK+ interface"""

    def __init__(self):
        super(Gtk, self).__init__("gtk")

    def start(self):
        super(Gtk, self).start()

        GtkUI(self.args)

def start():
    Gtk().start()

DEFAULT_PREFS = {
    "classic_mode": True,
    "interactive_add": True,
    "focus_add_dialog": True,
    "enable_system_tray": True,
    "close_to_tray": False,
    "start_in_tray": False,
    "enable_appindicator": False,
    "lock_tray": False,
    "tray_password": "",
    "check_new_releases": True,
    "default_load_path": None,
    "window_maximized": False,
    "window_x_pos": 0,
    "window_y_pos": 0,
    "window_width": 640,
    "window_height": 480,
    "pref_dialog_width": None,
    "pref_dialog_height": None,
    "window_pane_position": -1,
    "tray_download_speed_list" : [5.0, 10.0, 30.0, 80.0, 300.0],
    "tray_upload_speed_list" : [5.0, 10.0, 30.0, 80.0, 300.0],
    "connection_limit_list": [50, 100, 200, 300, 500],
    "enabled_plugins": [],
    "show_connection_manager_on_start": True,
    "autoconnect": False,
    "autoconnect_host_id": None,
    "autostart_localhost": False,
    "autoadd_queued": False,
    "autoadd_enable": False,
    "autoadd_location": "",
    "choose_directory_dialog_path": deluge.common.get_default_download_dir(),
    "show_new_releases": True,
    "signal_port": 40000,
    "ntf_tray_blink": True,
    "ntf_sound": False,
    "ntf_sound_path": deluge.common.get_default_download_dir(),
    "ntf_popup": False,
    "ntf_email": False,
    "ntf_email_add": "",
    "ntf_username": "",
    "ntf_pass": "",
    "ntf_server": "",
    "ntf_security": None,
    "signal_port": 40000,
    "show_sidebar": True,
    "show_toolbar": True,
    "show_statusbar": True,
    "sidebar_show_zero": False,
    "sidebar_show_trackers": True,
    "sidebar_position": 170,
    "show_rate_in_title": False,
    "focus_main_window_on_add": True,
    "createtorrent.trackers": []
}

class GtkUI(object):
    def __init__(self, args):
        self.daemon_bps = (0,0,0)
        # Setup signals
        try:
            import gnome.ui
            import gnome

            #Suppress: Warning: Attempt to add property GnomeProgram::*** after class was initialised
            original_filters = warnings.filters[:]
            warnings.simplefilter("ignore")
            try:
                self.gnome_prog = gnome.init("Deluge", deluge.common.get_version())
            finally:
                warnings.filters = original_filters

            self.gnome_client = gnome.ui.master_client()
            def on_die(*args):
                reactor.stop()
            self.gnome_client.connect("die", on_die)
            log.debug("GNOME session 'die' handler registered!")
        except Exception, e:
            log.warning("Unable to register a 'die' handler with the GNOME session manager: %s", e)

        if deluge.common.windows_check():
            from win32api import SetConsoleCtrlHandler
            from win32con import CTRL_CLOSE_EVENT
            from win32con import CTRL_SHUTDOWN_EVENT
            def win_handler(ctrl_type):
                log.debug("ctrl_type: %s", ctrl_type)
                if ctrl_type in (CTRL_CLOSE_EVENT, CTRL_SHUTDOWN_EVENT):
                    reactor.stop()
                    return 1
            SetConsoleCtrlHandler(win_handler)

        if deluge.common.osx_check() and gtk.gdk.WINDOWING == "quartz":
            import gtkosx_application
            self.osxapp = gtkosx_application.gtkosx_application_get()
            def on_die(*args):
                reactor.stop()
            self.osxapp.connect("NSApplicationWillTerminate", on_die)


        # Set process name again to fix gtk issue
        setproctitle(getproctitle())

        # Attempt to register a magnet URI handler with gconf, but do not overwrite
        # if already set by another program.
        common.associate_magnet_links(False)

        # Make sure gtkui.conf has at least the defaults set
        self.config = deluge.configmanager.ConfigManager("gtkui.conf", DEFAULT_PREFS)

        # We need to check on exit if it was started in classic mode to ensure we
        # shutdown the daemon.
        self.started_in_classic = self.config["classic_mode"]

        # Start the IPC Interface before anything else.. Just in case we are
        # already running.
        self.queuedtorrents = QueuedTorrents()
        self.ipcinterface = IPCInterface(args)

        # Initialize gdk threading
        gtk.gdk.threads_init()
        gobject.threads_init()

        # We make sure that the UI components start once we get a core URI
        client.set_disconnect_callback(self.__on_disconnect)

        self.trackericons = TrackerIcons()
        self.sessionproxy = SessionProxy()
        # Initialize various components of the gtkui
        self.mainwindow = MainWindow()
        self.menubar = MenuBar()
        self.toolbar = ToolBar()
        self.torrentview = TorrentView()
        self.torrentdetails = TorrentDetails()
        self.sidebar = SideBar()
        self.filtertreeview = FilterTreeView()
        self.preferences = Preferences()
        self.systemtray = SystemTray()
        self.statusbar = StatusBar()
        self.addtorrentdialog = AddTorrentDialog()

        if deluge.common.osx_check() and gtk.gdk.WINDOWING == "quartz":
            def nsapp_open_file(osxapp, filename):
                # Ignore command name which is raised at app launch (python opening main script).
                if filename == sys.argv[0]:
                    return True
                from deluge.ui.gtkui.ipcinterface import process_args
                process_args([filename])
            self.osxapp.connect("NSApplicationOpenFile", nsapp_open_file)
            from menubar_osx import menubar_osx
            menubar_osx(self, self.osxapp)
            self.osxapp.ready()

        # Initalize the plugins
        self.plugins = PluginManager()

        # Show the connection manager
        self.connectionmanager = ConnectionManager()

        from twisted.internet.task import LoopingCall
        rpc_stats = LoopingCall(self.print_rpc_stats)
        rpc_stats.start(10)

        reactor.callWhenRunning(self._on_reactor_start)
        # Start the gtk main loop
        gtk.gdk.threads_enter()
        try:
            reactor.run()
        except OverflowError:
            # Ticket #3010 reports an overflow error from twisted glibbase that
            # cannot be replicated so catch it and ignore it to prevent spamming logs.
            pass
        self.shutdown()
        gtk.gdk.threads_leave()

    def shutdown(self, *args, **kwargs):
        log.debug("gtkui shutting down..")

        component.stop()

        # Process any pending gtk events since the mainloop has been quit
        if not deluge.common.windows_check() and not deluge.common.osx_check():
            while gtk.events_pending() and reactor.running:
                reactor.doIteration(0)

        # Shutdown all components
        component.shutdown()

        # Make sure the config is saved.
        self.config.save()

    def print_rpc_stats(self):
        import time
        try:
            recv = client.get_bytes_recv()
            sent = client.get_bytes_sent()
        except AttributeError:
            return

        log.debug("sent: %s recv: %s", deluge.common.fsize(sent), deluge.common.fsize(recv))
        t = time.time()
        delta_time = t - self.daemon_bps[0]
        delta_sent = sent - self.daemon_bps[1]
        delta_recv = recv - self.daemon_bps[2]

        sent_rate = deluge.common.fspeed(float(delta_sent) / float(delta_time))
        recv_rate = deluge.common.fspeed(float(delta_recv) / float(delta_time))
        log.debug("sent rate: %s recv rate: %s", sent_rate, recv_rate)
        self.daemon_bps = (t, sent, recv)

    def _on_reactor_start(self):
        log.debug("_on_reactor_start")
        self.mainwindow.first_show()

        if self.config["classic_mode"]:

            def on_dialog_response(response):
                if response != gtk.RESPONSE_YES:
                    # The user does not want to turn Classic Mode off, so just quit
                    self.mainwindow.quit()
                    return
                # Turning off classic_mode
                self.config["classic_mode"] = False
                self.__start_non_classic()
            try:
                try:
                    client.start_classic_mode()
                except deluge.error.DaemonRunningError:
                    d = dialogs.YesNoDialog(
                        _("Turn off Classic Mode?"),
                        _("It appears that a Deluge daemon process (deluged) is already running.\n\n\
You will either need to stop the daemon or turn off Classic Mode to continue.")).run()
                    self.started_in_classic = False
                    d.addCallback(on_dialog_response)
                except ImportError, e:
                    if "No module named libtorrent" in e.message:
                        d = dialogs.YesNoDialog(
                        _("Enable Thin Client Mode?"),
                        _("Thin client mode is only available because libtorrent is not installed.\n\n\
To use Deluge standalone (Classic mode) please install libtorrent.")).run()
                        self.started_in_classic = False
                        d.addCallback(on_dialog_response)
                    else:
                        raise
                else:
                    component.start()
                    return
            except Exception, e:
                import traceback
                tb = sys.exc_info()
                ed = dialogs.ErrorDialog(
                    _("Error Starting Core"),
                    _("There was an error starting the core component which is required to run Deluge in Classic Mode.\n\n\
Please see the details below for more information."), details=traceback.format_exc(tb[2])).run()
                def on_ed_response(response):
                    d = dialogs.YesNoDialog(
                        _("Turn off Classic Mode?"),
                        _("Since there was an error starting in Classic Mode would you like to continue by turning it off?")).run()
                    self.started_in_classic = False
                    d.addCallback(on_dialog_response)
                ed.addCallback(on_ed_response)
        else:
            self.__start_non_classic()

    def __start_non_classic(self):
            # Autoconnect to a host
            if self.config["autoconnect"]:
                for host in self.connectionmanager.config["hosts"]:
                    if host[0] == self.config["autoconnect_host_id"]:
                        try_connect = True
                        # Check to see if we need to start the localhost daemon
                        if self.config["autostart_localhost"] and host[1] in ("localhost", "127.0.0.1"):
                            log.debug("Autostarting localhost:%s", host[2])
                            try_connect = client.start_daemon(host[2], deluge.configmanager.get_config_dir())
                            log.debug("Localhost started: %s", try_connect)
                            if not try_connect:
                                dialogs.ErrorDialog(
                                    _("Error Starting Daemon"),
                                    _("There was an error starting the daemon process.  Try running it from a console to see if there is an error.")).run()

                        def on_connect(connector):
                            component.start()
                        def on_connect_fail(result, try_counter):
                            log.info("Connection to host failed..")
                            # We failed connecting to the daemon, but lets try again
                            if try_counter:
                                log.info("Retrying connection.. Retries left: %s", try_counter)
                                try_counter -= 1
                                import time
                                time.sleep(0.5)
                                do_connect(try_counter)
                            return

                        def do_connect(try_counter):
                            client.connect(*host[1:]).addCallback(on_connect).addErrback(on_connect_fail, try_counter)

                        if try_connect:
                            do_connect(6)
                        break

            if self.config["show_connection_manager_on_start"]:
                # XXX: We need to call a simulate() here, but this could be a bug in twisted
                try:
                    reactor._simulate()
                except AttributeError:
                    # twisted < 12
                    reactor.simulate()
                self.connectionmanager.show()


    def __on_disconnect(self):
        """
        Called when disconnected from the daemon.  We basically just stop all
        the components here.
        """
        component.stop()
