# Copyright 2021 (c) Anna Schumaker.
from gi.repository import GLib
from gi.repository import Gtk

class TrackTitle(Gtk.Label):
    def __init__(self, player):
        Gtk.Label.__init__(self)
        player.connect("track-changed", self.on_track_changed)
        self.on_track_changed(player, None, player.track)
        self.add_css_class("title")

    def on_track_changed(self, player, old, new):
        text = new.title if new else "Emmental"
        self.set_markup(f"<big>{GLib.markup_escape_text(text)}</big>")


class TrackArtist(Gtk.Label):
    def __init__(self, player):
        Gtk.Label.__init__(self)
        player.connect("track-changed", self.on_track_changed)
        self.on_track_changed(player, None, player.track)
        self.add_css_class("subtitle")

    def on_track_changed(self, player, old, new):
        text = f"by {new.artist.name}" if new else "The Cheesy Music Player"
        self.set_markup(f"<big>{GLib.markup_escape_text(text)}</big>")


class NowPlaying(Gtk.ScrolledWindow):
    def __init__(self, player):
        Gtk.ScrolledWindow.__init__(self)
        self.box = Gtk.Box.new(Gtk.Orientation.VERTICAL, 0)
        self.box.append(TrackTitle(player))
        self.box.append(TrackArtist(player))

        self.set_policy(Gtk.PolicyType.AUTOMATIC, Gtk.PolicyType.NEVER)
        self.set_valign(Gtk.Align.CENTER)
        self.set_hexpand(True)
        self.set_child(self.box)