extends Control
@export var card: PackedScene
@export var tower: Tower
@export var player: Player

@export var behaviour_asset: Resource

var items = []

func _ready():
	var file = FileAccess.open(behaviour_asset.resource_path, FileAccess.READ)
	var content = file.get_as_text()
	items = JSON.parse_string(content)

func pick_item() -> Dictionary:
	var total_weight: float = 0.0
	for choice in items:
		total_weight += choice["weight"]
	
	var random_value: float = randf() * total_weight
	var cumulative_weight: float = 0.0
	for choice in items:
		cumulative_weight += choice["weight"]
		if random_value <= cumulative_weight:
			return choice

	return items.back()

func roll():
	for child in $Panel/RewardContainer.get_children():
		child.queue_free()
	
	var items = []
	var count = randi_range(1, 3)
	for idx in range(count):
		items.append(pick_item())
	
	for item in items:
		var instance = card.instantiate()
		instance.tower = tower
		instance.player = player
		instance.id = item["id"]
		instance.value = item["value"]
		instance.title = item["title"]
		instance.subtitle = item["subtitle"]
		instance.description = item["description"]
		instance.connect("claimed", _hide)
		$Panel/RewardContainer.add_child(instance)

func _show():
	roll()
	get_tree().paused = true
	visible = true

func _hide():
	get_tree().paused = false
	visible = false