extends SceneTree

# Headless gameplay test: run with
#   godot --headless -s res://tests/test_icon_button_drag_cancel.gd
# Verifies IconButton only counts as pressed if the finger/cursor is still
# over the button when it lifts - dragging off the button before
# releasing (a standard way to "cancel" a touch/click) must NOT still
# trigger it, and releasing back inside the button's bounds must.

var main_scene: Node
var map_button: IconButton
var press_count: int = 0


func _initialize() -> void:
	var packed: PackedScene = load("res://Main.tscn")
	main_scene = packed.instantiate()
	root.add_child(main_scene)
	map_button = main_scene.get_node("UI/MapButton")
	map_button.pressed.connect(_on_pressed)


func _process(_delta: float) -> bool:
	var inside: Vector2 = map_button.size / 2.0
	var far_outside: Vector2 = map_button.size * 10.0

	# Press inside, release far outside the button's rect - must NOT fire.
	_touch(true, inside)
	_touch(false, far_outside)
	var cancel_ok: bool = press_count == 0
	print("after_drag_off press_count=%d cancel_ok=%s" % [press_count, cancel_ok])

	# Press and release both inside - must fire normally.
	_touch(true, inside)
	_touch(false, inside)
	var normal_press_ok: bool = press_count == 1
	print("after_normal_press press_count=%d normal_press_ok=%s" % [press_count, normal_press_ok])

	if cancel_ok and normal_press_ok:
		print("TEST_ICON_BUTTON_DRAG_CANCEL: PASS")
		quit(0)
	else:
		print("TEST_ICON_BUTTON_DRAG_CANCEL: FAIL")
		quit(1)
	return true


func _touch(is_pressed: bool, at_position: Vector2) -> void:
	var ev: InputEventScreenTouch = InputEventScreenTouch.new()
	ev.pressed = is_pressed
	ev.position = at_position
	map_button._gui_input(ev)


func _on_pressed() -> void:
	press_count += 1