extends CharacterBody2D

# 🖼️ TEMPAT MEMASUKKAN GAMBAR KEPALA MATI (Akan muncul di Inspector setelah skrip di-save)
@export var tekstur_kepala_mati: Texture2D
@export var damage_diterima: int = 30

# --- VARIABEL NODE ---
@onready var animasi_player: AnimationPlayer = $AnimasiIdle
@onready var sprite_senjata: Sprite2D = $Visual/senjata
@onready var visual = $Visual 
@onready var tangan_kanan = $Visual/tangankanan 
@onready var tangan_kiri = $Visual/tangankiri    
@onready var sprite_kepala: Sprite2D = $Visual/kepala # 🧠 BARU: Referensi node kepala agar tidak error lagi!

# 🔌 AMBIL REFERENSI MUZZLE (Anak dari sprite senjata)
@onready var muzzle = $Visual/senjata/muzzle

# 👁️ AMBIL REFERENSI AREA SENSOR
@onready var area_mata = $Radar
@onready var area_punggung = $Punggung

# 🎵 REFERENSI NODE AUDIO STREAM PLAYER
@onready var sfx_tembak_musuh = $AudioStreamPlayer
@onready var sfx_stealth_kill = $AudioStreamPlayer2

# --- VARIABEL PENGATURAN ---
@export var hp = 100
@export var chase_speed = 150.0 
# 📦 LOAD SCENE PELURUMUSUH
@export var peluru_scene: PackedScene = preload("res://pelururiflemusuh.tscn")

# 🎯 DIATUR LEWAT INSPECTOR EDITOR (Centang = Kanan, Kosong = Kiri)
@export var facing_right: bool = true

var player_in_stealth_range = false
var is_dead = false 
var sudah_benar_benar_mati: bool = false # 🔒 Kunci mutlak anti-double trigger
var gravitasi = 800.0

# --- VARIABEL AI & TEMBAKAN ---
var player_target = null
var is_chasing = false
var sedang_menembak: bool = false # Mencegah timer bertabrakan saat burst fire
var baru_ketemu: bool = true # 🧭 KUNCI: Penanda awal deteksi untuk jeda tembak pertama

func _ready():
	print("--- DIAGNOSTIK: Prajurit Stasioner Muncul ---")
	sinkronkan_arah_objek()

func _physics_process(delta):
	# 🛡️ PENGAMAN UTAMA: Jika sudah mati, hentikan seluruh logika update termasuk deteksi tombol interaksi!
	if is_dead or sudah_benar_benar_mati: return 

	# 1. Gravitasi
	if not is_on_floor():
		velocity.y += gravitasi * delta
	else:
		velocity.y = 0
	
	# 2. Logika AI
	if is_chasing and player_target:
		if player_target.is_hiding:
			stop_chasing()
		else:
			logic_mengejar()
			mulai_siklus_tembakan()
	else:
		if abs(velocity.x) < 10.0:
			velocity.x = 0
		
		if velocity.x != 0:
			atur_arah_wajah(sign(velocity.x))

	move_and_slide()

	# 3. Manajemen Animasi
	perbarui_animasi()

	# 4. Pengecekan Stealth Kill (Hanya berjalan jika belum dalam proses mati)
	if Input.is_action_just_pressed("interact") and player_in_stealth_range:
		stealth_assassination()

func logic_mengejar():
	var arah_ke_player = sign(player_target.global_position.x - global_position.x)
	velocity.x = arah_ke_player * chase_speed
	atur_arah_wajah(arah_ke_player)

func atur_arah_wajah(arah):
	if arah == 0: return 
	
	if arah > 0 and not facing_right:
		facing_right = true
		sinkronkan_arah_objek()
		print("DIAGNOSTIK: Musuh berbalik arah ke KANAN")
	elif arah < 0 and facing_right:
		facing_right = false
		sinkronkan_arah_objek()
		print("DIAGNOSTIK: Musuh berbalik arah ke KIRI")

# --- 🔄 FUNGSI SINKRONISASI VISUAL & SENSOR ---
func sinkronkan_arah_objek():
	var nilai_skala = 1.0 if facing_right else -1.0
	if visual: visual.scale.x = nilai_skala
	if area_mata: area_mata.scale.x = nilai_skala
	if area_punggung: area_punggung.scale.x = nilai_skala

func stop_chasing():
	is_chasing = false
	player_target = null
	baru_ketemu = true 
	print("Soldier: Kehilangan jejak...")

# --- LOGIKA SIKLUS TEMBAKAN 3 PELURU TIAP 2 DETIK ---
func mulai_siklus_tembakan():
	if sedang_menembak or not peluru_scene or is_dead: return
	sedang_menembak = true
	
	if baru_ketemu:
		await get_tree().create_timer(1.0).timeout
		baru_ketemu = false 
	
	for i in range(3):
		if is_chasing and player_target and not player_target.is_hiding and not is_dead:
			eksekusi_tembakan()
			await get_tree().create_timer(0.15).timeout
	
	await get_tree().create_timer(2.0).timeout
	sedang_menembak = false

func eksekusi_tembakan():
	if not muzzle or is_dead: return
	
	if sfx_tembak_musuh:
		sfx_tembak_musuh.play()
	
	var p = peluru_scene.instantiate()
	var arah_horizontal = 1.0 if facing_right else -1.0
	var arah_tembakan = Vector2(arah_horizontal, 0)
	
	if "damage" in p:
		p.damage = 5
	
	p.global_position = muzzle.global_position
	p.direction = arah_tembakan
	p.rotation = arah_tembakan.angle()
	
	get_tree().current_scene.add_child(p)

# --- FUNGSI MANAJEMEN ANIMASI ---
func perbarui_animasi():
	if is_dead: return
	if sprite_senjata:
		sprite_senjata.visible = is_chasing

	if animasi_player == null: return
	
	var nama_animasi: String = "walk" if abs(velocity.x) > 15.0 else "idle"
	if is_chasing:
		nama_animasi += "_weapon"
		
	if animasi_player.current_animation != nama_animasi:
		if animasi_player.has_animation(nama_animasi):
			if nama_animasi == "idle" and visual:
				for child in visual.get_children():
					if child is Sprite2D:
						child.position = Vector2.ZERO
						if not (is_chasing and (child == tangan_kanan or child == tangan_kiri)):
							child.rotation_degrees = 0
			animasi_player.play(nama_animasi)

# --- FUNGSI SIGNAL AREA ---
func _on_mata_melihat_player(body: Node2D) -> void:
	if is_dead: return
	if body.name == "Player" and not body.is_hiding:
		player_target = body
		is_chasing = true 

func _on_mata_kehilangan_player(body: Node2D) -> void:
	if body == player_target:
		stop_chasing()

func _on_punggung_didekati_player(body: Node2D) -> void:
	if is_dead: return
	if body.name == "Player":
		player_in_stealth_range = true
		player_target = body 

func _on_punggung_ditinggal_player(body: Node2D) -> void:
	if body.name == "Player":
		player_in_stealth_range = false
		if not is_chasing:
			player_target = null

# --- 🥷 LOGIKA STEALTH ASSASSINATION (DARI BELAKANG) ---
func stealth_assassination():
	if sudah_benar_benar_mati: return
	sudah_benar_benar_mati = true
	is_dead = true
	hp = 0
	velocity = Vector2.ZERO

	set_physics_process(false)

	if area_punggung:
		area_punggung.set_deferred("monitoring", false)
		area_punggung.set_deferred("monitorable", false)

	print("💥 [STEALTH] Interaksi ditekan. Player menusuk!")

	if player_target and player_target.has_method("eksekusi_stealth_kill"):
		player_target.eksekusi_stealth_kill()

	await get_tree().create_timer(0.3).timeout
	
	if sfx_stealth_kill:
		print("🔊 [SFX] Main sekarang tepat setelah 0.3 detik")
		sfx_stealth_kill.stop()
		sfx_stealth_kill.play() 

	_proses_animasi_dan_fadeout()

# --- 🩸 FUNGSI MENERIMA DAMAGE DARI TEMBAKAN PLAYER ---
func terima_damage(jumlah_damage: int) -> void:
	if is_dead or sudah_benar_benar_mati: return

	hp -= damage_diterima
	print("🎯 Soldier terkena tembakan Player! Sisa HP: ", hp)

	if hp <= 0:
		eksekusi_kematian_normal()

# --- 💀 KEMATIAN NORMAL (TERKENA TEMBAKAN PELURU) ---
func eksekusi_kematian_normal():
	if sudah_benar_benar_mati: return
	sudah_benar_benar_mati = true
	is_dead = true
	hp = 0
	velocity = Vector2.ZERO

	set_physics_process(false)
	
	if area_punggung:
		area_punggung.set_deferred("monitoring", false)
		area_punggung.set_deferred("monitorable", false)
		
	print("💀 [DEATH] Musuh mati karena ditembak!")
	_proses_animasi_dan_fadeout()

# --- 🌫️ SEKUENS ANIMASI ROBOH & FADEOUT ---
func _proses_animasi_dan_fadeout():
	# Ganti gambar kepala menjadi kepala2 sesaat sebelum terkapar
	if sprite_kepala and tekstur_kepala_mati:
		sprite_kepala.texture = tekstur_kepala_mati
		print("🖼️ Visual kepala diganti menjadi kepala mati/terkapar!")

	if animasi_player and animasi_player.has_animation("mati"):
		animasi_player.play("mati")
		await animasi_player.animation_finished

	if sfx_stealth_kill and sfx_stealth_kill.playing:
		await sfx_stealth_kill.finished

	var tween = create_tween()
	tween.tween_property(self, "modulate:a", 0.0, 0.4)

	await tween.finished
	queue_free()