class_name MusicPlayerTest
extends GdUnitTestSuite


func test_play_or_pause_toggles_play_state():
	var music_player = MusicPlayer.new()
	var mock_audio = mock(AudioStreamPlayer)
	var mock_play_button = mock(TextureButton)
	
	music_player.audio_player = mock_audio
	music_player.play_button = mock_play_button
	music_player.play_icon = load("res://icons/play_icon_light.svg")
	music_player.pause_icon = load("res://icons/pause_icon_light.svg")
	
	# Initial state - paused
	mock_audio.stream_paused = true
	music_player.song_finished = false
	
	# First call should play
	music_player.play_or_pause()
	assert_false(mock_audio.stream_paused)
	assert_eq(mock_play_button.texture_normal, music_player.pause_icon)
	
	# Second call should pause
	music_player.play_or_pause()
	assert_true(mock_audio.stream_paused)
	assert_eq(mock_play_button.texture_normal, music_player.play_icon)


func test_restart_resets_playback():
	var music_player = MusicPlayer.new()
	var mock_audio = mock(AudioStreamPlayer)
	var mock_slider = mock(HSlider)
	
	music_player.audio_player = mock_audio
	music_player.progress_slider = mock_slider
	
	mock_audio.stream_paused = false
	mock_slider.value = 50.0
	music_player.song_finished = true
	
	music_player.restart()
	
	assert_true(mock_audio.stop.was_called())
	assert_false(mock_audio.stream_paused)
	assert_false(music_player.song_finished)
	assert_eq(mock_slider.value, 0)
	assert_true(mock_audio.play.was_called())


func test_pause_sets_correct_state():
	var music_player = MusicPlayer.new()
	var mock_audio = mock(AudioStreamPlayer)
	var mock_play_button = mock(TextureButton)
	
	music_player.audio_player = mock_audio
	music_player.play_button = mock_play_button
	music_player.play_icon = load("res://icons/play_icon_light.svg")
	
	mock_audio.stream_paused = false
	
	music_player.pause()
	
	assert_true(mock_audio.stream_paused)
	assert_eq(mock_play_button.texture_normal, music_player.play_icon)


func test_format_time_correctly_formats_seconds():
	var music_player = MusicPlayer.new()
	
	assert_eq(music_player.format_time(65.0), "01:05")
	assert_eq(music_player.format_time(0.0), "00:00")
	assert_eq(music_player.format_time(3661.0), "61:01")


func test_format_text_hides_info_when_configured():
	var music_player = MusicPlayer.new()
	
	# Test with hide_beginning and hide_length
	Settings.hide_beginning = true
	Settings.hide_length = true
	Settings.hide_for_seconds = 5.0
	
	assert_eq(music_player.format_text(3.0, 100.0), "??:?? / ??:??")
	
	Settings.hide_beginning = false
	Settings.hide_length = true
	assert_eq(music_player.format_text(10.0, 100.0), "00:10 / ??:??")
	
	Settings.hide_beginning = true
	Settings.hide_length = false
	assert_eq(music_player.format_text(3.0, 100.0), "??:?? / 01:40")
	
	Settings.hide_beginning = false
	Settings.hide_length = false
	assert_eq(music_player.format_text(10.0, 100.0), "00:10 / 01:40")
	
	# Reset
	Settings.hide_beginning = false
	Settings.hide_length = false


func test_on_drag_started_sets_is_changing():
	var music_player = MusicPlayer.new()
	
	assert_false(music_player.is_changing)
	
	music_player._on_drag_started()
	
	assert_true(music_player.is_changing)


func test_on_drag_ended_updates_position():
	var music_player = MusicPlayer.new()
	var mock_audio = mock(AudioStreamPlayer)
	var mock_slider = mock(HSlider)
	
	music_player.audio_player = mock_audio
	music_player.progress_slider = mock_slider
	
	mock_slider.value = 30.0
	music_player.is_changing = true
	
	music_player._on_drag_ended(true)
	
	assert_false(music_player.is_changing)
	assert_true(mock_audio.seek.was_called_with([30.0]))
	assert_eq(music_player.playback_position, 30.0)


func test_seek_updates_slider_and_position():
	var music_player = MusicPlayer.new()
	var mock_audio = mock(AudioStreamPlayer)
	var mock_slider = mock(HSlider)
	
	music_player.audio_player = mock_audio
	music_player.progress_slider = mock_slider
	
	mock_slider.value = 10.0
	
	music_player.seek(5.0)
	
	assert_eq(mock_slider.value, 15.0)
	assert_true(mock_audio.seek.was_called_with([15.0]))
	assert_eq(music_player.playback_position, 15.0)


func test_change_volume_updates_slider():
	var music_player = MusicPlayer.new()
	var mock_slider = mock(HSlider)
	
	music_player.volume_slider = mock_slider
	mock_slider.value = 0.5
	
	music_player.change_volume(0.1)
	
	assert_eq(mock_slider.value, 0.6)
	assert_true(mock_slider.change_volume.was_called_with([0.6]))