extends Node

func _ready() -> void:
	print("Loaded Music singleton")

var change_slow_actions : Array = []
var gameSpeed : float = 1;
var musicType: int = 0;
var audio_player_slow : AudioStreamPlayer3D
var audio_player_normal : AudioStreamPlayer3D
var audio_player_fast : AudioStreamPlayer3D
var current_audio_player : AudioStreamPlayer3D

func setSlowMusic():
	setMusicType( -1 )
	
func setFastMusic():
	setMusicType( 1 )
	
func setNormalMusic():
	setMusicType( 0 )	
	
func setMusicType( type:int ):
	print("Set Music type")
	musicType = type;
	
	if type == 0:
		gameSpeed = 0
		
		var current_playback_position : float = 0.0
		print("Set Music type normal")
		
		if current_audio_player:
			current_playback_position = current_audio_player.get_playback_position()
			current_audio_player.stop()
			
		current_audio_player = audio_player_normal
		current_audio_player.play(current_playback_position)
	
	if type == 1:
		
		gameSpeed = 2
		
		var current_playback_position : float = 0.0
		
		if current_audio_player:
			current_playback_position = current_audio_player.get_playback_position()
			current_audio_player.stop()
			
		current_audio_player = audio_player_fast
		current_audio_player.play(current_playback_position)
	
	if type == -1:
		print("Set Music type slow")
		
		gameSpeed = 0.5
		
		var current_playback_position : float = 0.0
		
		if current_audio_player:
			current_playback_position = current_audio_player.get_playback_position()
			current_audio_player.stop()
			
		current_audio_player = audio_player_slow
		current_audio_player.play(current_playback_position)
		

func register_change_action(change_action : Node) -> void:
	print("Registered change action")
	change_slow_actions.append(change_action)
	
func unregister_change_action(change_action : Node) -> void:
	print("Unregistered change action")
	change_slow_actions.erase(change_action)
	
func change_music() -> void:
	for change_action in change_slow_actions:
		change_action.execute()

func register_audio_player_slow(audio_player : AudioStreamPlayer3D) -> void:
	print("Registered audio stream player fast")	
	audio_player_slow = audio_player
	
func register_audio_player_normal(audio_player : AudioStreamPlayer3D) -> void:
	print("Registered audio stream player normal")		
	audio_player_normal = audio_player
	
func register_audio_player_fast(audio_player : AudioStreamPlayer3D) -> void:
	print("Registered audio stream player fast")			
	audio_player_fast = audio_player