# Copyright 2021 (c) Anna Schumaker.
import db
import unittest
from gi.repository import GObject
from gi.repository import Gtk
from . import nowplaying

class FakeArtist(GObject.GObject):
    def __init__(self):
        self.name = "Test Artist"

class FakeTrack(GObject.GObject):
    def __init__(self):
        GObject.GObject.__init__(self)
        self.title = "Test Title"
        self.artist = FakeArtist()

class FakePlayer(GObject.GObject):
    def __init__(self):
        GObject.GObject.__init__(self)
        self.track = None

    @GObject.Signal(arg_types=(FakeTrack,FakeTrack))
    def track_changed(self, prev, new): pass


class TestAudioTrackTitle(unittest.TestCase):
    def test_track_title(self):
        fake  = FakePlayer()
        title = nowplaying.TrackTitle(fake)

        self.assertIsInstance(title, Gtk.Label)
        self.assertTrue(title.has_css_class("title"))
        self.assertEqual(title.get_text(), "Emmental")

        fake.emit("track-changed", None, FakeTrack())
        self.assertEqual(title.get_text(), "Test Title")


class TestAudioTrackArtist(unittest.TestCase):
    def test_track_artist(self):
        fake  = FakePlayer()
        artist = nowplaying.TrackArtist(fake)

        self.assertIsInstance(artist, Gtk.Label)
        self.assertTrue(artist.has_css_class("subtitle"))
        self.assertEqual(artist.get_text(), "The Cheesy Music Player")

        fake.emit("track-changed", None, FakeTrack())
        self.assertEqual(artist.get_text(), "by Test Artist")


class TestNowPlaying(unittest.TestCase):
    def test_now_playing(self):
        fake = FakePlayer()
        now  = nowplaying.NowPlaying(fake)
        child = now.box.get_first_child()
        viewport = now.get_child()

        self.assertIsInstance(now, Gtk.ScrolledWindow)
        self.assertIsInstance(now.box, Gtk.Box)
        self.assertIsInstance(child, nowplaying.TrackTitle)
        self.assertIsInstance(child.get_next_sibling(), nowplaying.TrackArtist)

        self.assertEqual(viewport.get_child(), now.box)
        self.assertEqual(now.get_valign(), Gtk.Align.CENTER)
        self.assertEqual(now.get_policy(), (Gtk.PolicyType.AUTOMATIC,
                                            Gtk.PolicyType.NEVER))

        self.assertTrue(now.get_hexpand())