extends Node

@export var player: Node:
	set(val):
		if val is Player:
			player = val
		else:
			player = null
			
@export var camera: Camera2D

@export var available_commands: Array[PackedScene]

signal commands_changed(commander, commands)

func _ready():
	%stock.visible = false
	%wheel.visible = false
	
	if available_commands:
		for command_scene in available_commands:
			var command := command_scene.instantiate()
			%stock.add_child(command)

func _show_command_wheel(pos: Vector2):
	var wheel := %wheel as Node2D
	wheel.position = pos
	
	# TODO center cam ?
	
	for command in %wheel.get_children():
		command.queue_free()
	
	for command in %stock.get_children():
		# TODO only available
		command = command.duplicate()
		command.color = player.color
		command.connect("clicked", _on_wheel_command_clicked.bind(command))
		%wheel.add_child(command)

	wheel.visible = true
	
func _on_wheel_command_clicked(command: Command):
	command.apply(%active, %wheel.position)
	%wheel.visible = false
	commands_changed.emit(player, %active.get_children())

func background_clicked(pos):
	if camera:
		pos = camera.get_canvas_transform().inverse() * pos
	_show_command_wheel(pos)