extends RefCounted
## Shared UI button states: every normal/hover/pressed/focus/disabled state is
## explicitly styled so the custom dark panels do not fall back to the engine
## theme when a control is focused or disabled.

const UiStyles := preload("res://src/game/ui/ui_styles.gd")
const UiFocus := preload("res://src/game/ui/ui_focus.gd")

func test_shared_button_states_are_complete() -> bool:
	var button := Button.new()
	UiStyles.apply_button(button, 16)
	var states := ["normal", "hover", "pressed", "focus", "disabled"]
	var missing: Array[String] = []
	for state in states:
		if not button.has_theme_stylebox_override(state):
			missing.append(state)
	var a := TestUtils.check(missing.is_empty(),
		"all five button states have explicit styles (missing: %s)" % str(missing))
	var b := TestUtils.check_eq(button.get_theme_font_size("font_size"), 16,
		"the shared style applies the requested font size")
	var disabled := button.get_theme_stylebox("disabled")
	var normal := button.get_theme_stylebox("normal")
	var c := TestUtils.check(disabled != null and normal != null
		and disabled.bg_color != normal.bg_color,
		"the disabled state is visually distinct from normal")
	button.text = "A very long localized action label that must not push the panel beyond the viewport"
	var d := TestUtils.check(button.clip_text
		and button.get_combined_minimum_size().x < 500.0,
		"long action labels ellipsize instead of forcing a wide panel")
	button.free()
	return a and b and c and d

func test_focus_helper_skips_hidden_and_disabled_controls() -> bool:
	var hidden := Button.new()
	hidden.visible = false
	var disabled := Button.new()
	disabled.disabled = true
	var normal := Button.new()
	var first := UiFocus.first_enabled([hidden, disabled, normal])
	var a := TestUtils.check_eq(first, normal, "focus skips hidden and disabled controls")
	hidden.free()
	disabled.free()
	normal.free()
	return a