#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# Copyright 2004-2005 Joe Wreschnig, Michael Urman, Iñigo Serna
#           2012,2013 Christoph Reiter
#           2010-2014 Nick Boultbee
# <quod-libet-development@googlegroups.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.

import sys
import os
import traceback

from quodlibet.cli import process_arguments, exit_
from quodlibet.util.dprint import print_d, print_
from quodlibet import util


def main(argv):
    import quodlibet

    quodlibet.init_cli()

    try:
        # we want basic commands not to import gtk (doubles process time)
        assert "gi.repository.Gtk" not in sys.modules
        sys.modules["gi.repository.Gtk"] = None
        startup_actions, cmds_todo = process_arguments(argv)
    finally:
        sys.modules.pop("gi.repository.Gtk", None)

    quodlibet.init()

    from quodlibet import app
    from quodlibet.qltk import add_signal_watch, Icons
    add_signal_watch(app.quit)

    import quodlibet.player
    import quodlibet.library
    from quodlibet import config
    from quodlibet import browsers
    from quodlibet import util
    from quodlibet.util.string import decode

    app.name = "Quod Libet"
    app.id = "quodlibet"
    quodlibet.set_application_info(Icons.QUODLIBET, app.id, app.name)

    config.init(os.path.join(quodlibet.get_user_dir(), "config"))

    library_path = os.path.join(quodlibet.get_user_dir(), "songs")

    print_d("Initializing main library (%s)" % (
            quodlibet.util.path.unexpand(library_path)))

    library = quodlibet.library.init(library_path)
    app.library = library

    # this assumes that nullbe will always succeed
    from quodlibet.player import PlayerError
    wanted_backend = os.environ.get(
        "QUODLIBET_BACKEND", config.get("player", "backend"))
    backend_traceback = None
    for backend in [wanted_backend, "nullbe"]:
        try:
            player = quodlibet.player.init_player(backend, app.librarian)
        except PlayerError:
            backend_traceback = decode(traceback.format_exc())
        else:
            break
    app.player = player

    os.environ["PULSE_PROP_media.role"] = "music"
    os.environ["PULSE_PROP_application.icon_name"] = "quodlibet"

    browsers.init()

    from quodlibet.qltk.songlist import SongList, get_columns

    from quodlibet.util.collection import Album
    try:
        cover_size = config.getint("browsers", "cover_size")
    except config.Error:
        pass
    else:
        if cover_size > 0:
            Album.COVER_SIZE = cover_size

    headers = get_columns()
    SongList.set_all_column_headers(headers)

    for opt in config.options("header_maps"):
        val = config.get("header_maps", opt)
        util.tags.add(opt, val)

    in_all = ("~filename ~uri ~#lastplayed ~#rating ~#playcount ~#skipcount "
              "~#added ~#bitrate ~current ~#laststarted ~basename "
              "~dirname").split()
    for Kind in browsers.browsers:
        if Kind.headers is not None:
            Kind.headers.extend(in_all)
        Kind.init(library)

    pm = quodlibet.init_plugins("no-plugins" in startup_actions)

    if hasattr(player, "init_plugins"):
        player.init_plugins()

    from quodlibet.qltk import unity
    unity.init("quodlibet.desktop", player)

    from quodlibet.qltk.songsmenu import SongsMenu
    SongsMenu.init_plugins()

    from quodlibet.util.cover import CoverManager
    app.cover_manager = CoverManager()
    app.cover_manager.init_plugins()

    from quodlibet.plugins.playlist import PLAYLIST_HANDLER
    PLAYLIST_HANDLER.init_plugins()

    from gi.repository import GLib

    def exec_commands(*args):
        for cmd in cmds_todo:
            try:
                resp = cmd_registry.run(app, *cmd)
            except CommandError:
                pass
            else:
                if resp is not None:
                    print_(resp, end="")

    from quodlibet.qltk.quodlibetwindow import QuodLibetWindow
    # Call exec_commands after the window is restored, but make sure
    # it's after the mainloop has started so everything is set up.
    app.window = window = QuodLibetWindow(
        library, player,
        restore_cb=lambda:
            GLib.idle_add(exec_commands, priority=GLib.PRIORITY_HIGH))

    from quodlibet.qltk.debugwindow import MinExceptionDialog
    from quodlibet.qltk.window import on_first_map
    if backend_traceback is not None:
        def show_backend_error(window):
            d = MinExceptionDialog(window,
                _("Audio Backend Failed to Load"),
                _("Loading the audio backend '%(name)s' failed. "
                  "Audio playback will be disabled.") %
                {"name": wanted_backend},
                backend_traceback)
            d.run()

        # so we show the main window first
        on_first_map(app.window, show_backend_error, app.window)

    from quodlibet.plugins.events import EventPluginHandler
    pm.register_handler(EventPluginHandler(library.librarian, player))

    from quodlibet.mmkeys import MMKeysHandler
    from quodlibet.remote import Remote, RemoteError
    from quodlibet.commands import registry as cmd_registry, CommandError
    from quodlibet.qltk.tracker import SongTracker, FSInterface
    try:
        from quodlibet.qltk.dbus_ import DBusHandler
    except ImportError:
        DBusHandler = lambda player, library: None

    mmkeys_handler = MMKeysHandler(app.name, window, player)
    if "QUODLIBET_NO_MMKEYS" not in os.environ:
        mmkeys_handler.start()
    current_path = os.path.join(quodlibet.get_user_dir(), "current")
    fsiface = FSInterface(current_path, player)
    remote = Remote(app, cmd_registry)
    try:
        remote.start()
    except RemoteError:
        exit_(1, True)

    DBusHandler(player, library)
    tracker = SongTracker(library.librarian, player, window.playlist)

    from quodlibet.qltk import session
    session.init("quodlibet")

    quodlibet.enable_periodic_save(save_library=True)

    if "start-playing" in startup_actions:
        player.paused = False

    # restore browser windows
    from quodlibet.qltk.browser import LibraryBrowser
    GLib.idle_add(LibraryBrowser.restore, library, player,
                  priority=GLib.PRIORITY_HIGH)

    def before_quit():
        print_d("Saving active browser state")
        try:
            app.browser.save()
        except NotImplementedError:
            pass

        print_d("Shutting down player device %r." % player.version_info)
        player.destroy()

    quodlibet.main(window, before_quit=before_quit)

    quodlibet.finish_first_session(app.id)
    mmkeys_handler.quit()
    remote.stop()
    fsiface.destroy()

    tracker.destroy()
    quodlibet.library.save()

    config.save()

    print_d("Finished shutdown.")


if __name__ == "__main__":
    main(util.argv)
