extends Control
class_name CloseableUI

signal closed

const OPEN_TWEEN_DURATION: float = 0.5
const CLOSE_TWEEN_DURATION: float = 0.25

var _is_mouse_over: bool = false
var _tween: Tween


func _ready() -> void:
	visible = false



func _input(event: InputEvent) -> void:
	if not visible:
		return

	if event is InputEventMouseButton and not _is_mouse_over:
		var button_event := event as InputEventMouseButton
		if not button_event.pressed:
			return
		if button_event.button_index == MOUSE_BUTTON_LEFT:
			close()

	if event is InputEventMouseMotion:
		var motion_event := event as InputEventMouseMotion
		_is_mouse_over = (
				Rect2(global_position, size)
				.has_point(motion_event.position)
		)


func close() -> void:
	closed.emit()
	await _close_animation(self)
	visible = false


func _open_animation(control: Control) -> void:
	await _animate(
			control,
			Vector2.ZERO,
			Vector2.ONE,
			OPEN_TWEEN_DURATION,
			Tween.EASE_OUT,
			Tween.TRANS_ELASTIC,
	)


func _close_animation(control: Control) -> void:
	await _animate(
			control,
			Vector2.ONE,
			Vector2.ZERO,
			CLOSE_TWEEN_DURATION,
			Tween.EASE_IN,
			Tween.TRANS_BACK,
	)


func _animate(
		control: Control,
		from_scale: Vector2,
		to_scale: Vector2,
		duration: float,
		ease_type: Tween.EaseType,
		trans_type: Tween.TransitionType,
) -> void:
	if _tween:
		_tween.kill()
	control.scale = from_scale
	_tween = create_tween()
	await (
			_tween
			.tween_property(control, "scale", to_scale, duration)
			.set_ease(ease_type)
			.set_trans(trans_type)
			.finished
	)