extends Control

@export var slotScene : PackedScene
@export var HotbarContainer : HBoxContainer
@export var hotbar : HotbarResource



func updateHotbar(hotbar: HotbarResource):
	for child in HotbarContainer.get_children():
		child.queue_free()
	for index in hotbar.slots.size():
		var item = hotbar.slots[index]
		var slotInstance = slotScene.instantiate()
		HotbarContainer.add_child(slotInstance)
		
		if item:
			var is_selected = (MainGame.selectedSlot == index)
			if is_selected:
				MainGame.currentHeldItemID = item.ID
			slotInstance.setItem(item, is_selected)

func givePlayerItem(ID:String):
	var segments = ID.split(":")
	
	for index in hotbar.slots.size():
		var item = hotbar.slots[index]
		if item.ID == "base:air":
			hotbar.slots[index] = load("res://GameShit/ItemHandlers/{namespace}/{id}.tres".format({"namespace": segments[0], "id": segments[1]}))
			updateHotbar(hotbar)
			return
			
func removePlayerHeldItem():
	hotbar.slots[MainGame.selectedSlot] = load("res://GameShit/ItemHandlers/base/air.tres")
	updateHotbar(hotbar)
			
			
			
func _ready() -> void:
	## connect the InventoryBus signal for the shit
	InventoryBus.givePlayerItem.connect(givePlayerItem)
	InventoryBus.removeHeldItem.connect(removePlayerHeldItem)
	
	## throw in some default slots
	if hotbar.slots.is_empty():
		hotbar.slots.clear()
		for i in range(0,12):
			hotbar.slots.append(load("res://GameShit/ItemHandlers/base/air.tres"))
		
		## give the player the default tools
		givePlayerItem("base:hammer")
		givePlayerItem("base:interact")
		
	updateHotbar(hotbar)



func _process(delta: float) -> void:
	if Input.is_key_pressed(KEY_1):
		MainGame.selectedSlot = 0
		updateHotbar(hotbar)
	elif Input.is_key_pressed(KEY_2):
		MainGame.selectedSlot = 1
		updateHotbar(hotbar)
	elif Input.is_key_pressed(KEY_3):
		MainGame.selectedSlot = 2
		updateHotbar(hotbar)
	elif Input.is_key_pressed(KEY_4):
		MainGame.selectedSlot = 3
		updateHotbar(hotbar)
	elif Input.is_key_pressed(KEY_5):
		MainGame.selectedSlot = 4
		updateHotbar(hotbar)
	elif Input.is_key_pressed(KEY_6):
		MainGame.selectedSlot = 5
		updateHotbar(hotbar)
	elif Input.is_key_pressed(KEY_7):
		MainGame.selectedSlot = 6
		updateHotbar(hotbar)
	elif Input.is_key_pressed(KEY_8):
		MainGame.selectedSlot = 7
		updateHotbar(hotbar)
	elif Input.is_key_pressed(KEY_9):
		MainGame.selectedSlot = 8
		updateHotbar(hotbar)