extends RefCounted
## Focus cone math and radial menu wrap/cancel (ADR-0008, ADR-0009).

const NpcFocus := preload("res://src/game/npc_focus.gd")
const ActionRadial := preload("res://src/game/ui/action_radial.gd")

func test_cone_picks_centered_head() -> bool:
	var origin := Vector3(0, 1.6, 0)
	var forward := Vector3(0, 0, -1)
	var heads: Array = [
		Vector3(3, 1.6, -4),
		Vector3(0.05, 1.6, -4),
		Vector3(-2, 1.6, -4),
	]
	var idx := NpcFocus.pick_index(origin, forward, heads)
	return TestUtils.check_eq(idx, 1, "head nearest the look axis wins")

func test_cone_rejects_behind_and_far() -> bool:
	var origin := Vector3(0, 1.6, 0)
	var forward := Vector3(0, 0, -1)
	var behind := NpcFocus.score_head(origin, forward, Vector3(0, 1.6, 4))
	var far := NpcFocus.score_head(origin, forward, Vector3(0, 1.6, -40))
	var a := TestUtils.check_eq(behind, -1.0, "behind the camera is ignored")
	var b := TestUtils.check_eq(far, -1.0, "out of range is ignored")
	return a and b

func test_radial_wrap_and_skip_wand() -> bool:
	var menu: Node = ActionRadial.new()
	menu.open_menu("Guest", false)
	var start: int = menu.selected
	menu.step(-1)
	var a := TestUtils.check(menu.selected != start, "step wrap moves selection")
	var b := TestUtils.check(menu.is_slice_enabled(menu.selected), "landed on an enabled slice")
	# Walk forward until we would hit wand; it must skip.
	var wand_index := _slice_index("wand")
	var warning_index := _slice_index("warning")
	menu.selected = wand_index - 1
	menu.step(1)
	var c := TestUtils.check_eq(menu.slice_id(menu.selected), "warning", "wand skipped when venue has none")
	menu.free()
	return a and b and c

func test_radial_cancel_does_not_confirm() -> bool:
	var menu: Node = ActionRadial.new()
	menu.open_menu("Guest", true)
	var got := {"id": ""}
	menu.confirmed.connect(func(id): got["id"] = id)
	menu.cancelled.connect(func(): got["id"] = "cancelled")
	menu.close_menu()
	var a := TestUtils.check_eq(got["id"], "", "closing without confirm emits nothing")
	var slice: String = menu.confirm_selected()
	var b := TestUtils.check_eq(slice, "", "confirm while closed is empty")
	menu.free()
	return a and b

func test_radial_confirm_returns_id() -> bool:
	var menu: Node = ActionRadial.new()
	menu.open_menu("Guest", true)
	menu.selected = 0
	var slice: String = menu.confirm_selected()
	menu.free()
	return TestUtils.check_eq(slice, "raise_hand", "space-confirm uses highlighted slice")

func test_angle_top_is_first_slice() -> bool:
	var menu: Node = ActionRadial.new()
	var idx: int = menu.angle_to_index(-PI / 2.0)
	menu.free()
	return TestUtils.check_eq(idx, 0, "top of the doughnut is slice 0")

func test_wand_not_on_w() -> bool:
	var src := FileAccess.get_file_as_string("res://src/game/game_manager.gd")
	var a := TestUtils.check(not src.contains("KEY_W:"), "W is not a game-manager action key")
	var b := TestUtils.check(src.contains("is_action_pressed(\"wand\")"), "wand goes through the named action")
	var c := TestUtils.check(not _action_has_key("wand", KEY_W), "wand action is not bound to W")
	var d := TestUtils.check(_action_has_key("wand", KEY_C), "wand action is bound to C")
	return a and b and c and d

func test_named_input_actions_exist() -> bool:
	var menu_ok := _action_has_key("action_menu", KEY_SPACE)
	var confirm_ok := _action_has_key("confirm", KEY_SPACE) and _action_has_key("confirm", KEY_ENTER)
	var cancel_ok := _action_has_key("cancel", KEY_ESCAPE)
	var inspect_ok := _action_has_key("inspect", KEY_E)
	return TestUtils.check(menu_ok, "action_menu has Space") \
		and TestUtils.check(confirm_ok, "confirm has Space + Enter") \
		and TestUtils.check(cancel_ok, "cancel has Esc") \
		and TestUtils.check(inspect_ok, "inspect has E")

func test_cancel_has_right_mouse() -> bool:
	var events: Array = InputMap.action_get_events("cancel")
	var found := false
	for event in events:
		if event is InputEventMouseButton and event.button_index == MOUSE_BUTTON_RIGHT:
			found = true
	return TestUtils.check(found, "cancel action includes right mouse button")

func _slice_index(id: String) -> int:
	for i in ActionRadial.SLICE_DEFS.size():
		if str(ActionRadial.SLICE_DEFS[i]["id"]) == id:
			return i
	return -1

func _action_has_key(action: String, keycode: Key) -> bool:
	if not InputMap.has_action(action):
		return false
	for event in InputMap.action_get_events(action):
		if event is InputEventKey and event.physical_keycode == keycode:
			return true
	return false