# Copyright 2022 (c) Anna Schumaker.
"""Implement the MPRIS2 Specification."""
from gi.repository import GObject
from gi.repository import Gio
from . import application

MPRIS2_ID = f"org.mpris.MediaPlayer2.emmental{'-debug' if __debug__ else ''}"


class Connection(GObject.GObject):
    """Our Mpris2 Object."""

    dbus = GObject.Property(type=Gio.DBusConnection)

    def __init__(self):
        """Initialize Mpris2."""
        super().__init__()
        self.app = application.Application()

        self.bind_property("dbus", self.app, "dbus")

        self._busid = Gio.bus_own_name(Gio.BusType.SESSION, MPRIS2_ID,
                                       Gio.BusNameOwnerFlags.NONE,
                                       self.__on_bus_acquired, None,
                                       self.__on_name_lost)

    def __del__(self):
        """Clean up."""
        self.disconnect()

    def __on_bus_acquired(self, dbus: Gio.DBusConnection, name: str) -> None:
        self.dbus = dbus
        self.app.register(dbus)

    def __on_name_lost(self, dbus: Gio.DBusConnection, name: str) -> None:
        self.app.unregister(dbus)

    def disconnect(self):
        """Disconnect from dbus."""
        if self.dbus:
            self.app.unregister(self.dbus)
            self.dbus = None

        if self._busid:
            Gio.bus_unown_name(self._busid)
            self._busid = None