extends Node2D

signal mati # 👈 Sinyal agar stage bisa mendengar kematian TANK!

# ==============================================================================
# 🎛️ SETELAN AUDIO MANUAL PANZER (UBAH DI SINI)
# ==============================================================================
# Nilai dalam desibel (dB). Shiro set ke 10.0 dB agar suaranya lantang dan keras!
@export var VOLUME_TEMBAKAN: float = 10.0
# ==============================================================================

# --- ⚙️ PENGATURAN ROTASI RODA ---
@export var kecepatan_rotasi_roda: float = 5.0

# --- 🔫 PENGATURAN TEMBAKAN PANZER ---
@export var peluru_scene: PackedScene = preload("res://pelurumusuhfase_2.tscn")
@export var jeda_tembak: float = 3.0 # Jeda antar tembakan (Fase Diam)
@export var kecepatan_putar_laras: float = 2.0 # Semakin cepat laras berputar
@export var damage_tembakan: float = 30.0 # DAMAGE YANG DILEMPAR PANZER KE PELURUNYA

# --- 📐 BATAS ROTASI LARAS ---
@export_group("Batas Rotasi Meriam")
@export var batas_mendongak_keatas: float = 45.0  # Maksimal mendongak 45 derajat ke atas
@export var batas_menunduk_kebawah: float = 10.0  # Maksimal menunduk 10 derajat ke bawah

# --- 🖼️ TEXTURE UNTUK FASE KERUSAKAN TANK ---
@export_group("Visual Kerusakan Bodi")
@export var tekstur_body_hp_100: Texture2D     # Gambar tank saat HP 100 kebawah
@export var tekstur_body_hp_50: Texture2D      # Gambar tank saat HP 50 kebawah
@export var tekstur_body_hancur_0: Texture2D   # Gambar tank jadi bangkai rongsokan saat HP 0

# --- 🛡️ PENGATURAN NYAWA PANZER ---
@export var health = 200
var is_destroyed = false

# 🎵 AMBIL REFERENSI NODE AUDIO UNTUK EFEK SUARA TEMBAKAN
@onready var audio_tembakan = $AudioStreamPlayer

# Daftar untuk menyimpan referensi ke-11 Sprite2D ban secara otomatis
var daftar_ban: Array[Sprite2D] = []

# Referensi Node Laras, Titik Tembak, dan Bodi Tank
var node_laras: Sprite2D = null
var titik_tembak: Marker2D = null
var node_body_sprite: Sprite2D = null 

# Variabel pembantu AI & Pergerakan
var posisi_terakhir_x: float = 0.0
var player_target: Node2D = null

# --- 🧭 VARIABEL KONTROL ROTASI ---
var sudut_target_laras: float = 0.0 
var sedang_membidik: bool = false 

func _ready() -> void:
	print("🪖 Final Boss: Tank Panzer (HP 200) bersiap!")
	
	posisi_terakhir_x = global_position.x
	player_target = get_tree().current_scene.get_node_or_null("Player")
	var node_static_body = get_node_or_null("StaticBody2D")
	
	if node_static_body:
		node_body_sprite = node_static_body.get_node_or_null("body")

		node_laras = node_static_body.get_node_or_null("laras")
		if node_laras:
			titik_tembak = node_laras.get_node_or_null("TitikTembak")
			sudut_target_laras = node_laras.rotation
		
		for i in range(1, 12):
			var nama_ban = "ban" + str(i)
			var node_ban = node_static_body.get_node_or_null(nama_ban)
			if node_ban and node_ban is Sprite2D:
				daftar_ban.append(node_ban)
				
		print("⚙️ Berhasil mendaftarkan ", daftar_ban.size(), " roda Panzer.")
		mulai_siklus_tembak_panzer()
	else:
		print("❌ Eror: Node induk 'StaticBody2D' tidak ditemukan!")

func _physics_process(delta: float) -> void:
	if is_destroyed: return
	
	var pergerakan_x = global_position.x - posisi_terakhir_x
	if pergerakan_x < -0.01:
		putar_semua_roda(-kecepatan_rotasi_roda * delta)
	elif pergerakan_x > 0.01:
		putar_semua_roda(kecepatan_rotasi_roda * delta)
	posisi_terakhir_x = global_position.x
	
	if node_laras:
		if sedang_membidik and player_target:
			var arah_ke_player = node_laras.global_position.direction_to(player_target.global_position)
			var sudut_mentah = arah_ke_player.angle()
			var sudut_derajat = rad_to_deg(sudut_mentah)
			
			var selisih_sudut = sudut_derajat - 180.0
			selisih_sudut = fposmod(selisih_sudut + 180.0, 360.0) - 180.0
			selisih_sudut = clamp(selisih_sudut, -batas_menunduk_kebawah, batas_mendongak_keatas)
			
			sudut_target_laras = deg_to_rad(selisih_sudut)
		else:
			sudut_target_laras = 0.0
			
		node_laras.rotation = rotate_toward(node_laras.rotation, sudut_target_laras, kecepatan_putar_laras * delta)

func putar_semua_roda(jumlah_rotasi: float) -> void:
	for ban in daftar_ban:
		if is_instance_valid(ban):
			ban.rotation += jumlah_rotasi

func mulai_siklus_tembak_panzer() -> void:
	while true:
		if is_destroyed: break
		sedang_membidik = false
		await get_tree().create_timer(jeda_tembak).timeout
		
		if is_destroyed: break
		if not player_target or ("is_hiding" in player_target and player_target.is_hiding):
			continue
			
		sedang_membidik = true
		await get_tree().create_timer(1.5).timeout
		
		if is_destroyed: break
		eksekusi_tembakan_meriam()
		await get_tree().create_timer(0.5).timeout

func eksekusi_tembakan_meriam() -> void:
	if not peluru_scene or not titik_tembak or not node_laras or is_destroyed: return
	
	print("💥 BOOM! Tembakan Panzer meletus! Mengirim damage: ", damage_tembakan)
	
	# 🎵 MAINKAN AUDIO TEMBAKAN & ATUR VOLUMENYA AGAR LEBIH KERAS
	if audio_tembakan:
		audio_tembakan.volume_db = VOLUME_TEMBAKAN
		audio_tembakan.play()
	
	var p = peluru_scene.instantiate()
	p.global_position = titik_tembak.global_position
	
	if "damage" in p:
		p.damage = damage_tembakan
	
	var arah_tembakan = Vector2.LEFT.rotated(node_laras.global_rotation)
	if "direction" in p:
		p.direction = arah_tembakan
	p.rotation = arah_tembakan.angle()
	
	get_tree().current_scene.add_child(p)

# --- 🛡️ LOGIKA MENERIMA DAMAGE ---
func kurangi_nyawa(jumlah):
	if is_destroyed: return
	
	health -= jumlah
	print("🛡️ Tank Panzer Terhantam! HP Panzer: ", health)
	
	if node_body_sprite:
		if health <= 0:
			if tekstur_body_hancur_0:
				node_body_sprite.texture = tekstur_body_hancur_0
		elif health <= 50:
			if tekstur_body_hp_50:
				node_body_sprite.texture = tekstur_body_hp_50
				print("🚨 CRITICAL! Gambar berubah ke sprite HP 50 kebawah.")
		elif health <= 100:
			if tekstur_body_hp_100:
				node_body_sprite.texture = tekstur_body_hp_100
				print("⚠️ WARNING! Gambar berubah ke sprite HP 100 kebawah.")
	
	if health <= 0:
		hancurkan_tank()

# --- 💀 LOGIKA HANCUR ---
func hancurkan_tank():
	is_destroyed = true
	sedang_membidik = false
	print("💀 TANK PANZER BERHASIL DIHANCURKAN! STAGE 3 CLEAR!")
	
	# Pancarkan sinyal ke Stage (Tanpa memicu audio apa pun)
	mati.emit() 
	
	# Panggil rem darurat di script Stage 3
	var node_stage = get_parent()
	if node_stage and node_stage.has_method("hentikan_pergerakan_panzer"):
		node_stage.hentikan_pergerakan_panzer()
	
	# Atur posisi dan skala sprite bangkai secara presisi
	if node_body_sprite:
		node_body_sprite.position = Vector2(575.5, 269.0)
		node_body_sprite.scale = Vector2(2.135, 2.106)
		print("📐 Posisi & Skala bangkai Panzer berhasil disesuaikan!")
	
	# Hapus laras meriam beserta node anaknya
	if node_laras:
		node_laras.queue_free()
		print("🗑️ Node Laras dibersihkan.")
	
	# Matikan bentuk tabrakan agar player bisa lewat bebas
	var body = get_node_or_null("StaticBody2D")
	if body:
		for child in body.get_children():
			if child is CollisionPolygon2D or child is CollisionShape2D:
				child.set_deferred("disabled", true)
		print("🛡️ Collision bodi tank dinonaktifkan.")