extends Node

@export_group("Main")
@export var room_lockdown : bool = false
@export var number_of_enemies : int = 20
@export var spawnable_enemies = preload("res://assets/spider2.tscn")
@export_group("Key")
@export var key_drop : bool = false
@export_enum("Silver", "Gold", "Special") var key_type: int
@export var special_key_name : String
@export_group("Item Drops")
@export var number_of_drops = 5

var enemies = []
var doors = []
var room_checks = []
var enemy_spawners = []
var number_enemies : int
var rot_amount : float

# Called when the node enters the scene tree for the first time.
func _ready():
	SignalBus.enemy_killed.connect(enemy_in_room_killed)
	SignalBus.game_loaded.connect(assign_elements)
	assign_elements()

# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	pass

func assign_elements():
	for i in self.get_children():
		if i is Enemy:
			enemies.append(i)
		if i.is_in_group("door"):
			doors.append(i)
		if i.is_in_group("room_check"):
			room_checks.append(i)
			i.room_entered.connect(room_entered)
			i.room_exited.connect(room_exited)
		if i is EnemySpawner:
			enemy_spawners.append(i)
	
	if enemy_spawners.size() > 0:
		spawn_enemies()

func enemy_in_room_killed():
	var enemy_count = 0
	for i in self.get_children():
		if i.is_in_group("enemy") and i.health > 0:
			enemy_count += 1
	
	if enemy_count <= 0:
		if room_lockdown:
			room_lockdown = false
		
		for i in doors:
			if !i.door_open:
				i.open()

func room_entered():
	if room_lockdown:
		for i in doors:
			if i.door_open:
				i.close()
	
func room_exited():
	if room_lockdown:
		for i in doors:
			if !i.door_open:
				i.open()

func spawn_enemies():
	while number_of_enemies >= 0:
		number_of_enemies -= 1
		
		var random_spawner = enemy_spawners.pick_random()
		var spawn_offset = random_spawner.random_box_pos()
		var set_pos = random_spawner.global_position + spawn_offset
		var enemy = spawnable_enemies.instantiate() #turn into an array of available enemies later
		add_child(enemy)
		enemy.global_position = set_pos
	
	await number_enemies == 0
	for i in self.get_children():
		if i is Enemy:
			enemies.append(i)