class_name SceneManager extends Node2D

@onready var triggers: Node2D = $"../Triggers"
@onready var game: GameController = $".."
#@onready var bullet: Bullet = $"../Bullet"
@onready var player: Player = $"../Player"

var bullet = preload("res://scenes/bullet.tscn")
var totalAllowedBullets:int = 7
#collection
var bulletArray:Array[Bullet] = []

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	buildLevel()
	game.teleportSignal.connect(teleport)
	game.destroySignal.connect(destroy)
	player.bulletSignal.connect(makeBullet)

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

func buildLevel() -> void:
	if triggers:
		for obj in triggers.get_children():
			if obj is Trigger:
				if not obj.areaTriggered.is_connected(game._on_trigger):
					obj.areaTriggered.connect(game._on_trigger)

func teleport(body, _bodyposition = null) -> void:
	if body is Crate:
		var viewport_size = get_viewport().get_visible_rect().size
		var random_x = randf_range(0, viewport_size.x)
		var random_y = randf_range(0, viewport_size.y)
		var newPosition = Vector2(random_x, random_y)
		body.teleport_to(newPosition)

#order desk (for bullets)
func makeBullet(pos, speed)-> void:
	#ask for a bullet from....the factory
	print("make a bullet")
	var myBullet:Bullet = bulletFactory()
	myBullet.transform = pos
	myBullet.setSpeed(speed)
	myBullet.set_process(true)
	
func bulletFactory()-> Bullet:
	var myBullet:Bullet
	#how many bullets have been created?
	if bulletArray.size() <= totalAllowedBullets:
		myBullet = bullet.instantiate()
		add_sibling(myBullet)
		#have to wire up signal after
		if not myBullet.bulletDamageSignal.is_connected(game._on_bullet_hit):
			myBullet.bulletDamageSignal.connect(game._on_bullet_hit)
	else: 
		#recycle bullet
		print("recycling!")
		myBullet = bulletArray.pop_back()
	#put the bullet in my collection
	bulletArray.push_front(myBullet)
	return myBullet

func destroy(target)-> void:
	if target is Bullet:
		stash(target)
	if target is Crate:
		target.queue_free()

func stash(target:Bullet)-> void:
	print("stash a bullet")
	#hide the bullet off-screen
	var stashPosition:Vector2 = Vector2(10,10)
	target.position = stashPosition
	target.setSpeed(0)
	target.set_process(false)