class_name LuneSettings
extends ColorRect
## Options and controls for Champions of Luneraria; the same Preferences as before plus the
## HUD size. The key list is the one place where every shortcut is shown.

signal closed

const SCALES: Array[float] = [.9, 1.0, 1.15, 1.3]
const KEYS: Array = [
	["Planung", [["1–5", "Truppe kaufen"], ["Leertaste", "Bereit"], ["Klick auf Einheit", "Details, Aufwerten, Einsatz"], ["Esc", "Auswahl oder Fenster schließen"]]],
	["Kampf", [["Leertaste / P", "Pause (offline)"], ["Tempo-Knopf", "1× · 2× · 4×"]]],
	["Kamera", [["F2 · F3 · F4", "Top · Mid · Bottom"], ["G", "Bossgrotte"], ["B", "eigener Ancient"], ["H", "eigener Held"],
		["Tab", "nächste Lane"], ["O", "Übersicht"], ["R", "zurücksetzen"], ["Q / E", "drehen"], ["WASD · Pfeile · mittlere Maustaste", "verschieben"],
		["Mausrad", "Zoom"], ["Minimap", "klicken oder ziehen"]]],
	["Allgemein", [["F1", "Optionen"], ["M", "Ton an/aus"], ["F11", "Vollbild"]]],
]

var _volume: HSlider
var _checks: Dictionary = {}
var _scale: ChoiceGroup

func _ready() -> void:
	theme = LuneUiTheme.shared()
	color = Color(.02, .03, .04, .9)
	set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	mouse_filter = Control.MOUSE_FILTER_STOP
	var center := CenterContainer.new()
	center.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	add_child(center)
	var panel := PanelContainer.new()
	panel.theme_type_variation = "MenuPanel"
	panel.custom_minimum_size.x = 900
	center.add_child(panel)
	var column := VBoxContainer.new()
	column.add_theme_constant_override("separation", 10)
	panel.add_child(column)
	var heading := _label("Optionen & Steuerung", "HeadingLabel", column)
	heading.horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	_label("Ein laufender Kampf pausiert offline, solange dieses Fenster geöffnet ist.", "MutedLabel", column).horizontal_alignment = HORIZONTAL_ALIGNMENT_CENTER
	var top := HBoxContainer.new()
	top.add_theme_constant_override("separation", 30)
	column.add_child(top)
	var left := VBoxContainer.new()
	left.add_theme_constant_override("separation", 8)
	left.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	top.add_child(left)
	_label("LAUTSTÄRKE", "SectionLabel", left)
	_volume = HSlider.new()
	_volume.max_value = 100
	_volume.custom_minimum_size.y = 28
	left.add_child(_volume)
	_volume.value_changed.connect(func(value: float) -> void:
		Preferences.volume = value / 100.0
		Preferences.commit())
	for entry: Array in [["muted", "Ton stumm [M]"], ["fullscreen", "Vollbild [F11]"], ["reduced_motion", "Bewegung reduzieren"]]:
		var check := CheckButton.new()
		check.text = entry[1]
		left.add_child(check)
		var key: String = entry[0]
		check.toggled.connect(func(value: bool) -> void:
			Preferences.set(key, value)
			Preferences.commit())
		_checks[key] = check
	var right := VBoxContainer.new()
	right.add_theme_constant_override("separation", 8)
	right.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	top.add_child(right)
	_label("UI-GRÖSSE IM SPIEL", "SectionLabel", right)
	_scale = ChoiceGroup.new(true)
	for value: float in SCALES:
		_scale.add_option("%d %%" % int(round(value * 100.0)))
	right.add_child(_scale)
	_scale.item_selected.connect(func(index: int) -> void:
		Preferences.ui_scale = SCALES[index]
		Preferences.commit())
	var note := _label("Größer für hochauflösende oder weit entfernte Bildschirme. Das HUD begrenzt die Größe selbst, sodass nichts aus dem Fenster ragt.", "MutedLabel", right)
	note.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	column.add_child(HSeparator.new())
	_label("STEUERUNG", "SectionLabel", column)
	var keys := HBoxContainer.new()
	keys.add_theme_constant_override("separation", 26)
	column.add_child(keys)
	for index: int in range(2):
		var list := GridContainer.new()
		list.columns = 2
		list.add_theme_constant_override("h_separation", 14)
		list.add_theme_constant_override("v_separation", 2)
		list.size_flags_horizontal = Control.SIZE_EXPAND_FILL
		keys.add_child(list)
		for group: Array in (KEYS.slice(0, 2) + [KEYS[3]] if index == 0 else [KEYS[2]]):
			var caption := _label(str(group[0]).to_upper(), "EyebrowLabel", list)
			caption.add_theme_font_size_override("font_size", 14)
			list.add_child(Control.new())
			for pair: Array in group[1]:
				var key_label := _label(str(pair[0]), "CardFactLabel", list)
				key_label.add_theme_font_size_override("font_size", 15)
				key_label.add_theme_color_override("font_color", LuneUiTheme.BRONZE_LIGHT)
				var action := _label(str(pair[1]), "MutedLabel", list)
				action.add_theme_font_size_override("font_size", 15)
	var back := Button.new()
	back.text = "ZURÜCK  [Esc]"
	back.theme_type_variation = "PrimaryButton"
	back.pressed.connect(func() -> void: closed.emit())
	column.add_child(back)

func _label(text_value: String, variation: String, parent: Node) -> Label:
	var label := Label.new()
	label.text = text_value
	label.theme_type_variation = variation
	parent.add_child(label)
	return label

func sync() -> void:
	_volume.set_value_no_signal(Preferences.volume * 100.0)
	for key: String in _checks:
		(_checks[key] as CheckButton).set_pressed_no_signal(bool(Preferences.get(key)))
	var best: int = 1
	for index: int in range(SCALES.size()):
		if absf(SCALES[index] - Preferences.ui_scale) < absf(SCALES[best] - Preferences.ui_scale):
			best = index
	_scale.select(best)