# pylint: disable=C0111,R0903

"""Displays the current song being played

Requires the following library:
    * python-dbus

Parameters:
    * spotify.format: Format string (defaults to "{artist} - {title}")
                      Available values are: {album}, {title}, {artist}, {trackNumber}
"""

import bumblebee.input
import bumblebee.output
import bumblebee.engine

try:
    import dbus
except ImportError:
    pass


class Module(bumblebee.engine.Module):
    def __init__(self, engine, config):
        super(Module, self).__init__(engine, config,
                                     bumblebee.output.Widget(full_text=self.spotify)
                                     )
        self._song = ""
        self._format = self.parameter("format", "{artist} - {title}")

        cmd = "dbus-send --session --type=method_call --dest=org.mpris.MediaPlayer2.spotify \
                /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player."
        engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
            cmd=cmd + "Previous")
        engine.input.register_callback(self, button=bumblebee.input.RIGHT_MOUSE,
            cmd=cmd + "Next")
        engine.input.register_callback(self, button=bumblebee.input.MIDDLE_MOUSE,
            cmd=cmd + "PlayPause")

    def spotify(self, widget):
        return str(self._song)

    def hidden(self):
        return str(self._song) == ""

    def update(self, widgets):
        try:
            bus = dbus.SessionBus()
            spotify = bus.get_object("org.mpris.MediaPlayer2.spotify", "/org/mpris/MediaPlayer2")
            spotify_iface = dbus.Interface(spotify, 'org.freedesktop.DBus.Properties')
            props = spotify_iface.Get('org.mpris.MediaPlayer2.Player', 'Metadata')
            self._song = self._format.format(album=str(props.get('xesam:album')),
                                             title=str(props.get('xesam:title')),
                                             artist=','.join(props.get('xesam:artist')),
                                             trackNumber=str(props.get('xesam:trackNumber')))
        except Exception:
            self._song = ""

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