class_name UIAudioSettingsDialog
extends AcceptDialog

var _feedback: Variant
var _style_button: Callable
var _refreshing := false
var master_slider: HSlider
var ui_slider: HSlider
var mute_button: CheckButton
var status_label: Label
var _master_label: Label
var _ui_label: Label


func configure(feedback: Variant, style_button := Callable()) -> void:
	_feedback = feedback
	_style_button = style_button


func _ready() -> void:
	name = "UIAudioSettingsDialog"
	title = "音の設定"
	ok_button_text = "設定を保存して閉じる"
	var column := VBoxContainer.new()
	column.add_theme_constant_override("separation", 12)
	add_child(column)
	_master_label = Label.new()
	column.add_child(_master_label)
	master_slider = _slider("MasterVolumeSlider")
	column.add_child(master_slider)
	_ui_label = Label.new()
	column.add_child(_ui_label)
	ui_slider = _slider("UIVolumeSlider")
	column.add_child(ui_slider)
	mute_button = CheckButton.new()
	mute_button.name = "MuteAudioButton"
	mute_button.text = "すべての音をミュート"
	column.add_child(mute_button)
	if _style_button.is_valid():
		_style_button.call(mute_button)
		_style_button.call(get_ok_button())
	status_label = Label.new()
	status_label.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	column.add_child(status_label)
	master_slider.value_changed.connect(_on_volume_changed)
	ui_slider.value_changed.connect(_on_volume_changed)
	mute_button.toggled.connect(_on_mute_changed)
	confirmed.connect(_save_settings)
	refresh()


func _slider(node_name: String) -> HSlider:
	var slider := HSlider.new()
	slider.name = node_name
	slider.min_value = 0.0
	slider.max_value = 100.0
	slider.step = 1.0
	slider.custom_minimum_size.x = 340
	return slider


func show_settings() -> void:
	refresh()
	popup_centered(Vector2i(440, 280))


func refresh() -> void:
	if _feedback == null or master_slider == null:
		return
	_refreshing = true
	master_slider.set_value_no_signal(float(_feedback.settings[&"master_volume"]) * 100.0)
	ui_slider.set_value_no_signal(float(_feedback.settings[&"ui_volume"]) * 100.0)
	mute_button.set_pressed_no_signal(bool(_feedback.settings[&"muted"]))
	_refreshing = false
	_refresh_labels()
	status_label.text = "設定はすぐに音へ反映されます。保存すると次の起動でも使用します。"
	if not _feedback.settings_writable:
		status_label.text = "既存の設定を保護するため保存できません。今回の音量変更はこの起動中だけ有効です。"
	get_ok_button().disabled = not _feedback.settings_writable


func _on_volume_changed(_value: float) -> void:
	_update_settings()


func _on_mute_changed(_enabled: bool) -> void:
	_update_settings()


func _update_settings() -> void:
	if _refreshing or _feedback == null:
		return
	_feedback.update_settings({&"master_volume": master_slider.value / 100.0, &"ui_volume": ui_slider.value / 100.0, &"muted": mute_button.button_pressed})
	_refresh_labels()


func _refresh_labels() -> void:
	_master_label.text = "マスター音量 %d%%" % int(master_slider.value)
	_ui_label.text = "UI操作音 %d%%" % int(ui_slider.value)


func _save_settings() -> void:
	var result: Dictionary = _feedback.save_settings()
	if not bool(result.get(&"ok", false)):
		status_label.text = "音の設定を保存できませんでした。現在の音量はこの起動中だけ使用します。"
		call_deferred(&"popup_centered", Vector2i(440, 280))