class_name SceneManager extends Node2D

const bullet_scene = preload("res://scenes/bullet.tscn")

var game := Gamecontroller
@onready var triggers: Node2D = $"../triggers"
@onready var coins: Node2D = $"../coins"
@onready var ennemies: Node2D = $"../ennemies"

var MAX_BULLET := 50
var available_bullets = []

var score := 0

func _ready() -> void:
	
	for i in range(MAX_BULLET):
		var new_bullet = bullet_scene.instantiate()
		new_bullet.bulletHitSignal.connect(game.onBulletHitSignal)
		available_bullets.push_front(new_bullet)
	
	if triggers:
		for trig in triggers.get_children():
			if trig is Trigger:
				trig.areaTriggerSignal.connect(game._on_trigger)
	
	if ennemies:
		updateEnnemies()
	
	if coins:
		updateCoins()
		
	game.destroySignal.connect(destroy)	
	game.levelChangeSignal.connect(changeScene)	

func updateEnnemies():
	print("pdate ennemies")
	for ennemy in ennemies.get_children():
		if ennemy is Slime:
			if not ennemy.playerDamageSignal.is_connected(game.playerAttacked):
				ennemy.playerDamageSignal.connect(game.playerAttacked)

func updateCoins():
	var coinCount := 0
	for coin in coins.get_children():
		if coin is Coin:
			coinCount += 1
			if not coin.coinCollectedSignal.is_connected(game.onCoinCollected):
				coin.coinCollectedSignal.connect(game.onCoinCollected)
			if not coin.tree_exited.is_connected(updateCoins):
				coin.tree_exited.connect(updateCoins)
	game.setTotalCoinCount(coinCount)

func make_bullet(start_position: Transform2D, speed: int):
	var new_bullet = bullet_factory(start_position, speed)
	if new_bullet:
		owner.add_child(new_bullet)
		new_bullet.setSpeed(speed)

func reload_bullet(bullet: Bullet):
	available_bullets.push(bullet)

func bullet_factory(start_position: Transform2D, speed: int) -> Bullet:
	var shot_bullet = available_bullets.pop_back()
	shot_bullet.global_transform = start_position
	
	available_bullets.push_front(shot_bullet)
	
	return shot_bullet

func destroy(body: Node2D):
	body.queue_free()


func changeScene(level):
	get_tree().call_deferred("change_scene_to_file", level)