#!/usr/bin/env python3

import gi, sys, os, threading, time, re
# import dbus
# import dbus.service, dbus.mainloop.glib
from pprint import pprint as print


gi.require_version('Gtk', '3.0')

from gi.repository import Gtk, Gdk, GLib, GdkPixbuf, GObject

from window import SonistWindow
from about_app import AboutWindow

from mpd.base import MPDClient

app_id = 'fun.wkit.sonist'
home_dir = os.getenv('HOME')


def run_async(func):
  def wrapper(*args, **kwargs):
    thread = threading.Thread(target=func, args=args, kwargs=kwargs)
    thread.daemon = True
    thread.start()
    return thread
  return wrapper


def get_music_dir():
  with open(f'{home_dir}/.mpd/mpd.conf', 'r') as f:
    data = f.read()

  matches = re.search('music_directory\s*"(.*)"', data).groups()
  if len(matches) > 0:
    return matches[0]
  
  return '/data/music'


class Application(Gtk.Application):

  __gsignals__ = {
    'playing': (GObject.SignalFlags.RUN_FIRST, None, (bool,)),
    'song_changed': (GObject.SignalFlags.RUN_FIRST, None, (bool,)),
    'state_changed': (GObject.SignalFlags.RUN_FIRST, None, (str,))
  }


  def __init__(self):
    Gtk.Application.__init__(self, application_id = app_id)

    self.mpd_state = None
    self.mpd_curr_song = None

    self.mpd = MPDClient()

    self.music_dir = get_music_dir()

    self.connect('window-removed', self.on_window_removed)



  
  @run_async
  def ping(self):
    if self.mpd_is_online:
      while True:
        try:
          self.mpd.ping()
          stat = self.mpd.status()
          song = self.mpd.currentsong() or {}
          state = stat.get('state')

          if self.mpd_curr_song != song.get('id'):
            self.mpd_curr_song = song.get('id')
            self.emit('song_changed', self.mpd_curr_song)

          if state == 'play':
            self.emit('playing', False)

          if self.mpd_state != state:
            self.emit('state_changed', state)
      
          self.mpd_state = state
          time.sleep(0.5)

        except Exception as e:
          self.mpd.kill()
          time.sleep(2)
          self.mpd_is_online = self.mpd_connect()


  def mpd_connect(self):
    try:
      self.mpd.connect("127.0.0.1", 6600)
      return True
    except:
      return False


  def do_activate(self):
    print('hello mpc')
    self.set_app_menu(None)
    self.set_menubar(None)

    self.mpd_is_online = self.mpd_connect()
    
    self.window = SonistWindow(self)
    self.about = AboutWindow()
    self.add_window(self.window)
    self.window.show_all()
    # self.about.show_all()

    self.ping()


  def on_window_removed(self, app, win):
    if len(self.get_windows()) == 0:
      print('朕要休息了~~~')




""" class ApplicationService(dbus.service.Object):
  def __init__(self, app):
    self.app = app
    bus_name = dbus.service.BusName(app_id, bus = dbus.SessionBus())
    dbus.service.Object.__init__(self, bus_name, '/')


  @dbus.service.method(app_id)
  def call_app(self):
    self.app.present()
 """

if __name__ == "__main__":
  # dbus.mainloop.glib.DBusGMainLoop(set_as_default = True)
  # bus = dbus.SessionBus()

  # try:
  #   obj = bus.get_object(app_id, '/')
  #   obj.call_app()
  #   sys.exit(0)
  # except dbus.DBusException:
  #   pass


  app = Application()

  # ApplicationService(app)
  app.run(sys.argv)