extends OmniLight3D

# Audio-Parameter
@export var audio_player: AudioStreamPlayer3D
@export var energy_multiplier: float = 10.0
@export var base_energy: float = 1.0
@export var use_audio: bool = true  # Toggle für Audio-Reaktion

# Blink/Farb-Parameter
@export var blink_speed: float = 16.0
@export var colors: Array[Color] = [Color.RED, Color.BLUE, Color.GREEN]
@export var audio_driven_colors: bool = false  # Farben durch Audio steuern

var time: float = 0.0
var spectrum: AudioEffectSpectrumAnalyzerInstance

func _ready():
	# Setup Spectrum Analyzer wenn Audio-Player vorhanden
	if audio_player:
		var bus_idx = AudioServer.get_bus_index("Master")
		# Prüfe ob bereits ein Spectrum Analyzer existiert
		if AudioServer.get_bus_effect_count(bus_idx) == 0:
			var effect = AudioEffectSpectrumAnalyzer.new()
			AudioServer.add_bus_effect(bus_idx, effect)
		spectrum = AudioServer.get_bus_effect_instance(bus_idx, 0)

func _process(delta):
	time += delta
	
	var audio_energy = 0.0
	
	# Audio-Analyse
	if use_audio and audio_player and audio_player.playing and spectrum:
		var magnitude = spectrum.get_magnitude_for_frequency_range(20, 20000)
		audio_energy = magnitude.length()
		
		# Licht-Energie wird von Audio gesteuert
		light_energy = base_energy + (audio_energy * energy_multiplier)
	else:
		# Fallback zum ursprünglichen Pulsieren
		var pulse = (sin(time * blink_speed) + 1.0) / 2.0
		light_energy = pulse * 3.0
	
	# Farbwechsel
	if audio_driven_colors and audio_energy > 0.1:
		# Farbe wechselt bei starkem Audio-Signal
		var color_index = int(audio_energy * 100) % colors.size()
		light_color = colors[color_index]
	else:
		# Ursprünglicher zeit-basierter Farbwechsel
		var color_index = int(time * 2) % colors.size()
		light_color = colors[color_index]