extends Control

# ==============================================================================
# 🎛️ SETELAN AUDIO MANUAL MAIN MENU (UBAH DI SINI)
# ==============================================================================
var VOLUME_BGM_DAMAI: float = 0.0  # Volume dasar Audio 1 (Suasana damai)
var VOLUME_BGM_HANCUR: float = 0.0 # Volume dasar Audio 2 (Suasana tegang/hancur)

var DURASI_FADE_IN: float = 3.0   # Durasi musik memudar masuk (detik)
var DURASI_FADE_OUT: float = 1.5  # Durasi musik memudar keluar (detik)
# ==============================================================================

@onready var bg_damai = $BackgroundDamai
@onready var bg_hancur = $BackgroundHancur 
@onready var bg_stage_1_selesai = $BackgroundStage1Selesai 
@onready var bg_stage_2_selesai = $BackgroundStage2Selesai 

# 🎬 Ambil referensi ke AnimationPlayer
@onready var anim_player = $TransitionLayer/fade_to_black

# 🔊 FIX: Jalur tombol disesuaikan karena berada di dalam VBoxContainer
@onready var start_button = $VBoxContainer/StartButton

# 🎵 AMBIL REFERENSI KEDUA NODE AUDIO STREAM
@onready var audio_damai = $AudioStreamPlayer   # Audio 1 (Damai)
@onready var audio_hancur = $AudioStreamPlayer2 # Audio 2 (Tegang/Hancur)

# Variabel pengaman transisi
var is_transitioning = false
var baru_tamat_stage_3 = false

func _ready():
	# Amankan setelan loop pada audio jika menggunakan format OGG
	atur_loop_audio(audio_damai)
	atur_loop_audio(audio_hancur)

	# 🎬 1. JALANKAN FADE IN VISUAL SAAT MASUK MAIN MENU
	if anim_player and anim_player.has_animation("fadein"):
		anim_player.play("fadein")
		print("🎬 Main Menu: Memutar animasi fadein...")
	
	# 🛠️ CHECKPOINT PROGRESS
	if Global.baru_selesai_stage_1:
		Global.stage_terbuka = 2
		Global.baru_selesai_stage_1 = false
		print("💾 Sistem Main Menu: Progress diperbarui ke Stage 2!")
		
	if Global.baru_selesai_stage_2:
		Global.stage_terbuka = 3
		Global.baru_selesai_stage_2 = false
		print("💾 Sistem Main Menu: Progress diperbarui ke Stage 3!")
		
	if Global.baru_selesai_stage_3:
		Global.stage_terbuka = 0 
		Global.main_menu_harus_glitch = false 
		baru_tamat_stage_3 = true 
		Global.baru_selesai_stage_3 = false 
		print("🏆 GAME TAMAT! Sistem Main Menu: Progress kembali ke awal dengan damai.")

	# 📺 2. LOGIKA MANAJEMEN BACKGROUND DAN AUDIO SPESIFIK STAGE
	sembunyikan_semua_bg()
	
	if baru_tamat_stage_3:
		if bg_damai: bg_damai.visible = true
		play_fade_in_audio(audio_damai, VOLUME_BGM_DAMAI)
		print("📺 Main Menu: Game tamat! Menampilkan BG Damai & memutar Audio 1.")
		
	elif Global.stage_terbuka == 1:
		# Selesai Stage 0 -> Putar Audio Damai dulu, nanti pindah ke Audio Hancur setelah glitch
		play_fade_in_audio(audio_damai, VOLUME_BGM_DAMAI)
		eksekusi_glitch()
		
	elif Global.stage_terbuka == 2:
		if bg_stage_1_selesai: bg_stage_1_selesai.visible = true
		play_fade_in_audio(audio_hancur, VOLUME_BGM_HANCUR)
		print("📺 Main Menu: Menampilkan BG Stage 1 Selesai & memutar Audio 2.")
		
	elif Global.stage_terbuka == 3:
		if bg_stage_2_selesai: bg_stage_2_selesai.visible = true
		play_fade_in_audio(audio_hancur, VOLUME_BGM_HANCUR)
		print("📺 Main Menu: Menampilkan BG Stage 2 Selesai & memutar Audio 2.")
		
	elif Global.main_menu_harus_glitch:
		play_fade_in_audio(audio_damai, VOLUME_BGM_DAMAI)
		eksekusi_glitch()
		
	else:
		# Mode normal / Baru main Stage 0 awal
		if bg_damai: bg_damai.visible = true
		play_fade_in_audio(audio_damai, VOLUME_BGM_DAMAI)
		print("📺 Main Menu: Menampilkan BG Damai awal & memutar Audio 1.")

	# 🎛️ PERBARUI TEKS TOMBOL START BERDASARKAN PROGRESS
	perbarui_teks_tombol_start()

# --- 🎛️ LOGIKA DINAMIS PENGUBAH TEKS TOMBOL START ---
func perbarui_teks_tombol_start():
	if not start_button:
		print("⚠️ Peringatan: Node tombol start tidak ditemukan!")
		return
		
	if baru_tamat_stage_3:
		start_button.text = "Ulangi"
		print("🎛️ Tombol Start diatur ke mode: Ulangi (Game Tamat)")
	elif Global.stage_terbuka in [1, 2, 3]:
		start_button.text = "Lanjutkan"
		print("🎛️ Tombol Start diatur ke mode: Lanjutkan (Stage ", Global.stage_terbuka, ")")
	else:
		start_button.text = "Mulai"
		print("🎛️ Tombol Start diatur ke mode: Mulai (Game Baru / Stage 0)")

# --- FUNGSI BANTUAN AUDIO ---
func atur_loop_audio(player_node: AudioStreamPlayer):
	if player_node and player_node.stream and player_node.stream is AudioStreamOggVorbis:
		player_node.stream.loop = true

func play_fade_in_audio(player_node: AudioStreamPlayer, volume_target: float):
	if player_node:
		player_node.volume_db = -80.0
		player_node.play()
		var tween = create_tween()
		tween.tween_property(player_node, "volume_db", volume_target, DURASI_FADE_IN)\
			.set_trans(Tween.TRANS_QUAD)\
			.set_ease(Tween.EASE_OUT)

# --- FUNGSI RESET VISIBILITY SEMUA BACKGROUND ---
func sembunyikan_semua_bg():
	if bg_damai: bg_damai.visible = false
	if bg_hancur: bg_hancur.visible = false
	if bg_stage_1_selesai: bg_stage_1_selesai.visible = false
	if bg_stage_2_selesai: bg_stage_2_selesai.visible = false

# --- LOGIKA EFEK GLITCH & PERGANTIAN AUDIO ---
func eksekusi_glitch():
	print("📺 Efek Glitch Dimulai...")
	# Loop kedip sebanyak 8 kali antara bg_damai and bg_hancur
	for i in range(8):
		bg_damai.visible = false
		bg_hancur.visible = true
		await get_tree().create_timer(randf_range(0.02, 0.1)).timeout
		
		bg_damai.visible = true
		bg_hancur.visible = false
		await get_tree().create_timer(randf_range(0.05, 0.3)).timeout
	
	bg_damai.visible = false
	bg_hancur.visible = true
	print("Efek Glitch Selesai: Dunia telah berubah.")
	
	# 🎵 Matikan Audio Damai (Audio 1) dan panggil Audio Hancur (Audio 2) setelah kedipan beres
	if audio_damai and audio_damai.is_playing():
		audio_damai.stop()
		
	play_fade_in_audio(audio_hancur, VOLUME_BGM_HANCUR)
	print("🎵 Audio 2 (Hancur) mulai diputar dengan mulus!")

# --- TOMBOL START ---
func _on_start_button_pressed() -> void:
	if is_transitioning: return
	
	var tujuan_scene = ""
	if Global.stage_terbuka == 0:
		tujuan_scene = "res://cutstage0_1.tscn" 
	elif Global.stage_terbuka == 1:
		tujuan_scene = "res://cutstage1_1.tscn" 
	elif Global.stage_terbuka == 2:
		tujuan_scene = "res://cutstage2_1.tscn" 
	elif Global.stage_terbuka == 3:
		tujuan_scene = "res://cutstage3_1.tscn" 
	else:
		tujuan_scene = "res://cutstage0_1.tscn" 
		
	mulai_fadeout_dan_pindah(tujuan_scene)

# --- TOMBOL EXIT ---
func _on_exit_button_pressed() -> void:
	if is_transitioning: return
	is_transitioning = true
	print("🎬 Keluar Game: Memutar fadeout sebelum menutup aplikasi...")
	
	# 🎵 Fade-out semua audio yang saat ini aktif
	eksekusi_fade_out_semua_audio()
	
	if anim_player and anim_player.has_animation("fadeout"):
		anim_player.play("fadeout")
		await anim_player.animation_finished
		
	get_tree().quit()

# --- FUNGSI TRANSISI BERSAMA & FADE OUT AUDIO ---
func mulai_fadeout_dan_pindah(path_tujuan: String):
	is_transitioning = true
	print("BERHASIL: Tombol ditekan. Memulai proses fadeout...")
	
	# 🎵 Pemicu Fade-out Audio secara perlahan saat klik tombol
	eksekusi_fade_out_semua_audio()
	
	if anim_player and anim_player.has_animation("fadeout"):
		anim_player.play("fadeout")
		await anim_player.animation_finished
	else:
		print("⚠️ Peringatan: Animasi 'fadeout' tidak ditemukan, langsung berpindah!")
	
	# Matikan total audio sebelum pindah agar menghemat RAM
	if audio_damai: audio_damai.stop()
	if audio_hancur: audio_hancur.stop()
	
	print("🚀 Berpindah dari Main Menu ke: ", path_tujuan)
	get_tree().change_scene_to_file(path_tujuan)

func eksekusi_fade_out_semua_audio():
	if audio_damai and audio_damai.is_playing():
		var tween_out1 = create_tween()
		tween_out1.tween_property(audio_damai, "volume_db", -80.0, DURASI_FADE_OUT)\
			.set_trans(Tween.TRANS_QUAD).set_ease(Tween.EASE_IN)
			
	if audio_hancur and audio_hancur.is_playing():
		var tween_out2 = create_tween()
		tween_out2.tween_property(audio_hancur, "volume_db", -80.0, DURASI_FADE_OUT)\
			.set_trans(Tween.TRANS_QUAD).set_ease(Tween.EASE_IN)