extends WindowDialog

signal mute_pressed
signal musicplayer_pressed


onready var music_player = $music

var playlist_music = { 'player': [], 'global': ["res://assets/musics/sangakanat_ames_voyageuses.ogg"] }
var lastdomain = "global"
var currentmusic = ""

var numberchannelplayeraudio = 1
var cacheplayeraudio = []
var music_play = false
var bus = "master"
var next_id = 0
var pause = false
var disable_execution_mute:bool = false
var playback_position_before_pause = 0
var last_update_playermusic = false


func _ready():
	var directory = Directory.new()
	get_tree().paused = false
	Config.msg_debug("Load MusicManager")
	self.last_update_playermusic = Config.get_playermusic()
	if not directory.dir_exists( "user://musics/" ):
		directory.make_dir_recursive( "user://musics/" )
	directory.open( "user://musics/" )
	directory.list_dir_begin()
	var files = []
	while true:
		var file = directory.get_next()
		if file == "":
			break
		elif not file.begins_with(".") and not directory.current_is_dir() and not file.ends_with( ".import" ):
			files.append(file)
	directory.list_dir_end()
#	for file in files:
#		var button = preload( "res://scenes/interfaces/music_manager/music_button.tscn" ).instance()
#		button.music_filename = "res://assets/musics/" + file
#		button.text = file
#		button.connect( "music_selected", self, "_on_music_pressed" )
#		$window_box/scroll_box/musics_box.add_child( button )
	for file in Config.queuemusic:
#		# Config.msg_debug(str(file))
		add_music( file )
	update_volume_db()
	#musicplayer = AudioStreamPlayer.new()
	#self.add_child(music_player)
	# update_playermusic()
	if Config.mute:
		set_mute_on()
	else:
		set_mute_off()
	music_player.connect("finished", self, "_on_stream_finished", [])


func connect_ext_func( signal_name, target , function_target):
	Config.msg_debug("Connect external [signal:" + signal_name + ", func:" + function_target + "]")
	target.connect( signal_name, self, function_target )


func _on_stream_finished():
	# When finished playing a stream, make the player available again.
	Config.msg_debug("_on_stream_finished")
	music_play = false


func play_music(filename: String):
	Config.msg_debug("path:" + str(filename))
	music_player.stream = load_music( filename )
	music_player.play()
	currentmusic = filename
	music_play = true
	for child in $window_box/scroll_box/musics_box.get_children():
		if Config.mute:
			child.set_disabled()
		elif child.get_music() == filename or not Config.playermusic :
			child.set_play()
		else:
			child.set_unplay()


func load_playlist():
	Config.msg_debug("load_playlist")
	var domain="global"
	var pos = 0
	var posmusic = -1
#	if Config.mute:
#		if music_play:
#			Config.msg_debug("mute")
#			music_player.set_pause_mode(true)
#		return
	if music_play:
		music_player.set_pause_mode(false)
		# music_player.queue_free()
	if Config.playermusic:
		domain="player"
	if domain != lastdomain:
		Config.msg_debug("Change domain:" + domain)
		currentmusic = ""
		posmusic = -1
		lastdomain = domain
	if len(playlist_music[domain]) == 0:
		Config.msg_debug("No musique on" + domain)
		music_player.stop()
		return
	for path in playlist_music[domain]:
		if Config.playermusic:
			if currentmusic == path.get_music():
				posmusic = pos
				Config.msg_debug("Change domain:" + domain + " posmusic:" + str(posmusic))
				break
		else:
			if currentmusic == path:
				posmusic = pos
				Config.msg_debug("Change domain:" + domain + " posmusic:" + str(posmusic))
				break
		pos += 1
	Config.msg_debug("Change domain:" + domain + " posmusic" + str(posmusic))
	if posmusic == -1:
		posmusic = 0
		Config.msg_debug("init:" + str(posmusic) + " / " + str(len(playlist_music[domain])))
	else:
		posmusic = (posmusic + 1) % len(playlist_music[domain])
		Config.msg_debug("next:" + str(posmusic))
	var path = playlist_music[domain][posmusic]
	if Config.playermusic:
		currentmusic = path.get_music()
	else:
		currentmusic = path
	play_music(currentmusic)
#	Config.msg_debug("path:" + str(currentmusic))
#	music_player.stream = load_music( currentmusic )
#	music_player.play()
#	play_music = true
	#audio_player.add_child()


func _process(_delta):
	if not pause and not music_play and not Config.mute:
		Config.msg_debug("next")
		load_playlist()
#		music_player.stream = load_music(queuemusic.pop_front())
#		music_player.play()
#		music_play = true


func load_external_music(filepath):
	var stream = null
	Config.msg_debug("load_external_music")
	var file = File.new()
	file.open(filepath, file.READ)
	var ext = filepath.split(".")[-1].to_lower()
	var buffer = file.get_buffer(file.get_len())
	Config.msg_debug(ext)
	match ext:
		"ogg":
			stream = AudioStreamOGGVorbis.new()
		"mp3":
			stream = AudioStreamMP3.new()
		#"wav":
		#	# We need decode message to get format (Stero/size bit/ ...
		#	stream = AudioStreamSample.new()
		#	stream.format = AudioStreamSample.FORMAT_16_BITS
		#	#stream.stereo = true
		_:
			Config.msg_error("Impossible to identify type of file (file:" + filepath + ", ext:" + ext + ")")
			return
	stream.data = buffer
	Config.msg_debug("load_external_music : End")
	return stream


func load_music(filepath: String):
	if filepath.left(5) == "res:/":
		return load( filepath )
	return load_external_music(filepath)


func reinitialize():
	pass


func play_next_music(stream):
	Config.msg_debug("play_next_music")


func update_volume_db():
	Config.msg_debug("update_volume_db")
	if Config.mute:
		music_player.set_volume_db(linear2db(0.0))
		music_player.set_pause_mode(true)
		#update_playermusic()
		return
	var lvl = Config.sound_lvl_global * Config.sound_lvl_music / 10000.0
	music_player.set_volume_db(linear2db(lvl))
	music_player.set_pause_mode(false)
	#update_playermusic()


func set_sound_mute(value: bool):
	Config.msg_debug("set_sound_mute")
	Config.set_sound_mute(value)
	update_volume_db()
	Config.save_config()


func set_level_global(value: int):
	Config.msg_debug("set_level_global")
	Config.sound_lvl_global = value
	update_volume_db()


func set_level_music(value: int):
	Config.msg_debug("set_level_music")
	Config.sound_lvl_music = value
	update_volume_db()


func set_level_effect(value: int):
	Config.msg_debug("set_level_effect")
	Config.sound_lvl_effect = value
	update_volume_db()


func clear_music():
	pass


func load_music_to_config():
	Config.msg_debug("load_music_to_config")
	Config.queuemusic = []
	for child in $window_box/scroll_box/musics_box.get_children():
		Config.queuemusic.append( child.get_music() )
	Config.save_config()


func add_music(file: String):
	var music_box = preload( "res://scenes/interfaces/music_manager/music_button.tscn" ).instance()
	music_box.set_music( file, self.next_id )
	music_box.connect( "del_pressed", self, "_on_music_box_delete_pressed" )
	music_box.connect( "down_pressed", self, "_on_music_box_down_pressed" )
	music_box.connect( "up_pressed", self, "_on_music_box_up_pressed" )
	$window_box/scroll_box/musics_box.add_child( music_box )
	self.next_id += 1
	playlist_music['player'] = $window_box/scroll_box/musics_box.get_children()
	load_music_to_config()
	auto_sizing_windows()


func _on_music_box_delete_pressed( id ):
	Config.msg_debug("_on_music_box_delete_pressed")
	for child in $window_box/scroll_box/musics_box.get_children():
		if child.id == id:
			child.queue_free()
	auto_sizing_windows()


func _on_music_box_down_pressed( id ):
	Config.msg_debug("_on_music_box_down_pressed")
	var pos = 0
	for child in $window_box/scroll_box/musics_box.get_children():
		if child.id == id:
			break
		pos += 1
	if pos >= $window_box/scroll_box/musics_box.get_child_count():
		Config.msg_error("Out of range : " + "pos:" + str(pos) + " count:" + str($window_box/scroll_box/musics_box.get_child_count()))
		return
	self.move_child_id(id, pos + 1)


func _on_music_box_up_pressed( id ):
	Config.msg_debug("_on_music_box_up_pressed")
	var pos = 0
	for child in $window_box/scroll_box/musics_box.get_children():
		if child.get_id() == id:
			break
		pos += 1
	if pos <= 0:
		Config.msg_error("Out of range : " + "pos:" + str(pos))
		return
	self.move_child_id(id, pos - 1)


func move_child(music_filename, pos):
	var ele = null
	for child in $window_box/scroll_box/musics_box.get_children():
		if child.get_music() == music_filename:
			ele = child
			break
	if ele:
		$window_box/scroll_box/musics_box.move_child(ele, pos)
		playlist_music['player'] = $window_box/scroll_box/musics_box.get_children()


func move_child_id(id, pos):
	var ele = null
	for child in $window_box/scroll_box/musics_box.get_children():
		if child.get_id() == id:
			ele = child
			break
	if ele:
		$window_box/scroll_box/musics_box.move_child(ele, pos)
		playlist_music['player'] = $window_box/scroll_box/musics_box.get_children()
	load_music_to_config()


func auto_sizing_windows():
	Config.msg_debug("Auto sizing Jukebox")
	var max_x = 0
	var max_y = $window_box/controls_box.rect_size.y
	for child in $window_box/scroll_box/musics_box.get_children():
		var x = 0
		for child2 in child.get_children():
			x += child2.rect_size.x
		if max_x < x:
			max_x += x
		max_y += 24
	var tx = int( (get_viewport().size.x - max_x) / 2 )
	var ty = int( (get_viewport().size.y - max_y) / 2 )
	if tx <= 20:
		max_x = get_viewport().size.x - 20
		tx = 10
	if ty <= 20:
		max_y = get_viewport().size.y - 20
		ty = 10
	self.rect_size.x = max_x
	self.rect_position.x = tx
	self.rect_size.y = max_y
	self.rect_position.y = ty


func open():
	Config.msg_debug("Open")
	update_playermusic()
	# auto_sizing_windows()
	self.popup()


func close():
	Config.msg_debug("Close")
	self.hide()


func toggle():
	Config.msg_debug("toggle")
	if self.visible:
		self.close()
	else:
		self.open()


func _on_music_pressed():
	Config.msg_debug("Music")


func _on_music_bis_pressed( p_filename ):
	Config.msg_debug(p_filename)


func _on_previous_pressed():
	Config.msg_debug("Previous")
	var previous = null
	for child in $window_box/scroll_box/musics_box.get_children():
		if child.get_music() == currentmusic:
			if previous != null:
				pause = false
				play_music(previous.get_music())
			return
		previous = child


func _on_pause_pressed():
	Config.msg_debug("Pause")
	if pause:
		return
	pause = true
	playback_position_before_pause = music_player.get_playback_position( )
	#music_player.stop()


func _on_play_pressed():
	Config.msg_debug("Play")
	if not pause:
		return
	music_player.play(playback_position_before_pause)
	pause = false


func _on_next_pressed():
	Config.msg_debug("Next")
	var detected = false
	for child in $window_box/scroll_box/musics_box.get_children():
		if child.get_music() == currentmusic:
			detected = true
			break
		if detected:
			pause = false
			play_music(child.get_music())
			return


func _on_sound_pressed():
	Config.msg_debug("Music")


func _on_soundeffect_pressed():
	Config.msg_debug("Sound Effect")


func _on_auto_pressed():
	Config.msg_debug("Auto")
	Config.set_playermusic(not Config.get_playermusic())
	Config.save_config()
	emit_signal( "musicplayer_pressed" )


func _on_mute_toggled(button_pressed):
	Config.msg_debug("Mute")
	MusicManager.set_sound_mute(button_pressed)
	emit_signal( "mute_pressed" )


func _on_mute_pressed():
	Config.msg_debug("Button JukeBox Mute")
	MusicManager.set_sound_mute(not Config.mute)
	emit_signal( "mute_pressed" )


func set_playermusic_on():
	Config.msg_debug("playermusic on")
	$window_box/controls_box/h_box_container_3/auto.texture_normal = load ( "res://assets/interfaces/jukebox/auto_on.png")


func set_playermusic_off():
	Config.msg_debug("playermusic off")
	$window_box/controls_box/h_box_container_3/auto.texture_normal = load ( "res://assets/interfaces/jukebox/auto_off.png")
	Config.msg_debug("playermusic off : End")


func set_mute_on():
	Config.msg_debug("mute on")
	self.disable_execution_mute = true
	$window_box/controls_box/h_box_container/mute.texture_normal = load ( "res://assets/interfaces/jukebox/sound_off.png")
	self.disable_execution_mute = false


func set_mute_off():
	Config.msg_debug("mute off")
	self.disable_execution_mute = true
	$window_box/controls_box/h_box_container/mute.texture_normal = load ( "res://assets/interfaces/jukebox/sound_on.png")
	self.disable_execution_mute = false


func _on_add_pressed():
	Config.msg_debug("")
	$file_dialog.show()


func _on_file_dialog_files_selected(paths):
	Config.msg_debug("multi files")
	#if self.slots_number > 0:
	#	self.slots[self.slots_number - 1].disable_down()
	for path in paths:
		var found = false
		for child in $window_box/scroll_box/musics_box.get_children():
			if child.get_music() == path:
				found = true
				break
		if found:
			continue
		Config.msg_debug("file: "+ path)
		MusicManager.add_music(path)
		self.next_id += 1
	self.open()


func update_playermusic():
	Config.msg_debug("update_playermusic")
	if Config.get_playermusic():
		#Config.msg_debug("update_playermusic: player music")
		set_playermusic_on()
		for child in $window_box/scroll_box/musics_box.get_children():
			if child.get_music() == currentmusic:
				#Config.msg_debug("update_playermusic: player music : on " + child.get_music())
				child.set_play()
			elif Config.mute:
				child.set_disabled()
			else:
				#Config.msg_debug("update_playermusic: player music : off " + child.get_music())
				child.set_unplay()
	else:
		#Config.msg_debug("update_playermusic: khanat music")
		set_playermusic_off()
		for child in $window_box/scroll_box/musics_box.get_children():
			child.set_disabled()
	if last_update_playermusic != Config.get_playermusic():
		Config.msg_debug("*** last_update_playermusic different ***")
		load_playlist()
	last_update_playermusic = Config.get_playermusic()
	Config.msg_debug("update_playermusic : End")


func _on_check_button_toggled(button_pressed):
	Config.msg_debug("_on_check_button_toggled")
	#Config.set_playermusic(not Config.get_playermusic())
	Config.set_playermusic(button_pressed)
	emit_signal( "musicplayer_toggled" , not Config.playermusic )


func _on_music_manager_musicplayer_pressed():
	Config.msg_debug("Signal musicplayer_pressed recieved on MusicManager")
	update_playermusic()


func _on_music_manager_mute_pressed():
	Config.msg_debug("Signal mute_pressed")
	update_playermusic()
	if Config.mute:
		set_mute_on()
	else:
		set_mute_off()


func _on_signal_mute_pressed():
	Config.msg_debug("<MusicManager> Received signal mute")
	update_playermusic()
	if Config.mute:
		set_mute_on()
	else:
		set_mute_off()


func _on_signal_musicplayer_pressed():
	Config.msg_debug("<MusicManager> Received signal musicplayer")
	update_playermusic()