extends Control

@export var health_bar: TextureProgressBar 
@export var stamina_bar: TextureProgressBar
@export var gold_label: Label 
@onready var player: Player = get_tree().get_first_node_in_group("player")
@onready var cross_hair: BoxContainer = $CrossHair

var unit: Unit

func _ready() -> void:
	# Connect signals from the player to update the UI elements
	player.health_changed.connect(update_health_bar)
	player.stamina_changed.connect(update_stamina_bar)
	player.gold_changed.connect(update_gold_text)
	player.player_loaded.connect(_on_player_loaded)
	# Connect the state_changed signal to update the crosshair visibility
	unit = player as Unit
	unit.connect("state_changed", Callable(self, "_on_state_changed"))

func update_health_bar(current_health: int, maximum_health: int) -> void:
	# Update the health bar with the current health
	health_bar.value = (100.0 / maximum_health) * current_health
	
func update_stamina_bar(current_stamina: int, maximum_stamina: int) -> void:
	# Update the stamina bar with the current stamina
	stamina_bar.value = (100.0 / maximum_stamina) * current_stamina
	
func update_gold_text(gold: int) -> void:
	# Update the gold label with the current gold amount
	gold_label.text = "Gold: " + str(gold)

func _on_player_loaded() -> void:
	# Initialize the health, stamina, and gold bars when the player is loaded
	update_health_bar(player.health, player.maximum_health)
	update_stamina_bar(player.stamina, player.maximum_stamina)
	update_gold_text(player.gold)

func _on_state_changed(old_state: Unit.States, new_state: Unit.States):
	# Update the crosshair visibility based on the new state
	if new_state == Unit.States.aiming:
		cross_hair.visible = true
	else:
		cross_hair.visible = false