extends CharacterBody2D

@export var speed: float = 100.0
@export var max_health: float = 100.0
var current_health: float

var player: Node2D
@onready var health_bar = $HealthBar
@onready var turret = $Turret

@export var bullet_scene: PackedScene = preload("res://scenes/bullet.tscn")
@export var fire_rate: float = 2.0
var can_shoot: bool = true

func _ready():
	add_to_group("enemy")
	current_health = max_health
	if health_bar:
		health_bar.max_value = max_health
		health_bar.value = current_health
		health_bar.hide() # Hide initially, show on damage

	# Find the player in the scene tree
	player = get_tree().get_first_node_in_group("player")
	if not player:
		# Fallback: try to find by name if group not set
		player = get_parent().get_node_or_null("player")

func _physics_process(_delta):
	if player:
		var direction = (player.global_position - global_position).normalized()
		velocity = direction * speed
		rotation = direction.angle()
		move_and_slide()
		
		# Aim turret at player
		if turret:
			turret.look_at(player.global_position)
			
		# Shoot if close enough
		if global_position.distance_to(player.global_position) < 400.0 and can_shoot:
			shoot()

func shoot():
	var bullet = bullet_scene.instantiate()
	bullet.shooter_group = "enemy"
	get_tree().root.add_child(bullet)
	bullet.global_position = turret.global_position
	bullet.global_rotation = turret.global_rotation
	
	can_shoot = false
	await get_tree().create_timer(fire_rate).timeout
	can_shoot = true

func take_damage(amount: float):
	current_health -= amount
	if health_bar:
		health_bar.show()
		health_bar.value = current_health
	
	if current_health <= 0:
		die()

func die():
	queue_free()