extends MainWindowTestSuite
## Picking a theme in Settings switches the whole game's look at once and is saved.

var _settings: SettingsPopup


func before_test() -> void:
	await super()
	_settings = _window.get_node("SettingsPopup")


func after_test() -> void:
	Settings.apply_theme(Settings.THEMES[0].id)
	await super()


func _pick(theme_name: String) -> void:
	var index: int = Settings.THEMES.map(
			func(entry: Dictionary) -> String: return entry.name).find(theme_name)
	_settings.theme_button.select(index)
	_settings.theme_button.item_selected.emit(index)
	await _runner.simulate_frames(1)


func test_picker_lists_every_theme_and_shows_the_one_in_use() -> void:
	var names: Array[String] = []
	for index: int in _settings.theme_button.item_count:
		names.append(_settings.theme_button.get_item_text(index))

	assert_array(names).contains_exactly(["Classic", "Original web"])
	assert_str(_settings.theme_button.get_item_text(_settings.theme_button.selected)) \
			.is_equal("Classic")


func test_picking_a_theme_switches_the_look_at_once() -> void:
	var button: Button = _window.get_node("TopBar/%SyncButton")
	var classic_text: Color = button.get_theme_color(&"font_color")
	var panel: Panel = _window.get_node("SettingsPopup/SettingsPanel")
	var popup_style: StyleBox = panel.get_theme_stylebox(&"panel")

	await _pick("Original web")

	assert_str(Settings.theme_id).is_equal("original_web")
	assert_str(_window.get_tree().root.theme.resource_path) \
			.is_equal("res://themes/original_web_theme.tres")
	assert_object(panel.get_theme_stylebox(&"panel")).is_not_same(popup_style)
	# The web version's buttons have orange text
	assert_bool(button.get_theme_color(&"font_color") != classic_text).is_true()


func test_chosen_theme_is_saved() -> void:
	await _pick("Original web")

	var saved: ConfigFile = ConfigFile.new()
	assert_int(saved.load(Settings.saved_settings_path())).is_equal(OK)
	assert_str(saved.get_value("app", "theme_id")).is_equal("original_web")


func test_backdrop_and_graph_follow_the_theme() -> void:
	var backdrop: PopupBackdrop = _window.get_node("PopupBackdrop")
	var classic: Color = backdrop.color

	await _pick("Original web")

	assert_object(backdrop.color).is_equal(backdrop.get_theme_color(&"backdrop", &"Palette"))
	assert_bool(backdrop.color != classic).is_true()


func test_unknown_theme_falls_back_to_the_default() -> void:
	Settings.apply_theme("no_such_theme")

	assert_str(Settings.theme_id).is_equal("classic")
	assert_str(_window.get_tree().root.theme.resource_path) \
			.is_equal("res://themes/main_theme.tres")