extends Node
var crate = preload("res://scenes/crate.tscn")
var bullet = preload("res://scenes/bullet.tscn")
var bulletPool:Array = []
# crate stuff
var cratePool:Array = []
@onready var box_trap_target: Node2D = $"../BoxTrapTarget"
@onready var coins: Node = $"../coins"
@onready var enemies: Node = $"../enemies"
@onready var player: CharacterBody2D = $"../CharacterBody2D"
@onready var timer: Timer = $Timer
@onready var ui: Control = $"../CanvasLayer/Control"

# Called when the node enters the scene tree for the first time.
func _ready() -> void:
	#pool all the crates
	for obj in owner.get_children():
		if obj.is_in_group("pushables"):
			cratePool.push_back(obj)
	print("Total crates on screen : "+str(cratePool.size() ) )
	for n in coins.get_children():
		#hook up the coinCollected signal
		print("coin found")
		n.coinCollected.connect(GameController.coinCollected)
	# Enemy routine
	for n in enemies.get_children():
		if n is Enemy:
			#wire up the signal
			n.playerDamage.connect(GameController.playerDamage)
	#GameController signals
	GameController.playerDeath.connect(killPlayer)
	GameController.coinsUpdate.connect(ui.coinsUpdate)
	GameController.playerHealth.connect(ui.healthUpdate)
	GameController.playerHealth.connect(player.hurtPlayer)
	#Player signals
	player.playerDead.connect(playerDead)

func boxTrap():
	print("Trigger a box trap!")
	var myCrate = crateFactory()
	myCrate.transform = box_trap_target.transform
	owner.add_child(myCrate)
	
func bulletFactory():
	# makes bullets!!
	var myBullet
	print("total bullets in play : "+str(bulletPool.size() ))
	if bulletPool.size() > 3:
		myBullet = bulletPool.pop_front()
	else:
		myBullet = bullet.instantiate()
		owner.add_child(myBullet)
	#or....recycles bullets
	myBullet.visible = true
	return myBullet
	
func placeBullet(speed, markerpos):
	print("SceneManager: make a bullet")
	var myBullet = bulletFactory()
	bulletPool.push_back(myBullet)
	print("Total bullets in play: "+str(bulletPool.size() ) )
	# set the speed of bullet
	myBullet.setSpeed(speed)
	# set the position of the bullet
	myBullet.transform = markerpos
	# make the bullet visible by adding it
	myBullet.hit.connect(bulletHit)
	
func bulletHit(bullet, body):
	print("bullet hit a target")
	body.queue_free()
	bullet.setSpeed(0)
	bullet.visible = false
	
func spendBullet():
	#place a spent bullet back in the pool
	pass
	
func crateFactory():
	var myCrate = crate.instantiate()
	myCrate.add_to_group("pushables") 
	return myCrate

func killPlayer():
	# tell player to die - starts death animation
	player.killPlayer()

func resetWorld():
	print("screne manager resetting world")
	GameController.resetPlayer()
	get_tree().reload_current_scene()
	
func playerDead():
	if timer.is_stopped():
		timer.start(1)