extends Node

signal next_quick_slot
signal previous_quick_slot
signal select_quick_slot(slot_index: int)
signal quick_slot_item_changed(item_id: String)
signal item_picked_up(item: DBItemResource)
signal item_dropped(item: DBItemResource)
signal inventory_opened
signal inventory_closed

signal add_to_inventory(item_id: String, amount: int)
signal remove_from_inventory(item_id: String, amount: int)
signal item_added(item_id: String, amount: int)
signal item_removed(item_id: String, amount: int)

var quick_slot_item_id: String = "001"

var inventory: Dictionary[String, DBItemResource]


func _ready() -> void:
	self.quick_slot_item_changed.connect(_on_quick_slot_item_changed)
	self.item_picked_up.connect(_on_item_picked_up)
	self.item_dropped.connect(_on_item_dropped)

	self.add_to_inventory.connect(_on_add_to_inventory)
	self.remove_from_inventory.connect(_on_remove_from_inventory)


func _on_add_to_inventory(item_id: String, amount: int = 1) -> void:
	if not inventory.has(item_id):
		inventory[item_id] = DBItems.data[item_id]

	inventory[item_id].amount += amount

func _on_remove_from_inventory(item_id: String, amount: int = 1) -> void:
	if not inventory.has(item_id): return

	inventory[item_id].amount -= amount

func _on_item_dropped(item_id: String) -> void:
	_on_remove_from_inventory(item_id, 1)

func _on_item_picked_up(item_id: String) -> void:
	_on_add_to_inventory(item_id, 1)

func _on_quick_slot_item_changed(item_id: String) -> void:
	quick_slot_item_id = item_id