extends CanvasLayer
## Shared responsive menu shell. No native window chrome or system dialogs.
signal closed

const INK := Color("ecf2ed")
const MUTED := Color("8fa8b7")
const CYAN := Color("83d4df")
const GOLD := Color("edbc7c")
const DISPLAY_FONT := preload("res://assets/fonts/font2.ttf")
var heading := ""
var subtitle := ""
var marker := "RANDOLOOT / SYSTEMY POKŁADOWE"
var preferred_size := Vector2(780,590)
var body: VBoxContainer
var footer: HBoxContainer
var panel: PanelContainer
var _root: Control
var _closing := false

func _ready() -> void:
	process_mode = Node.PROCESS_MODE_ALWAYS
	layer = 140
	_root = Control.new()
	_root.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	add_child(_root)
	var shade := ColorRect.new()
	shade.color = Color(0.005,0.012,0.025,0.78)
	shade.set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
	_root.add_child(shade)
	panel = PanelContainer.new()
	panel.add_theme_stylebox_override("panel", box(Color("0b1825"),Color("416471"),24))
	_root.add_child(panel)
	var column := VBoxContainer.new()
	column.add_theme_constant_override("separation",16)
	panel.add_child(column)
	var top := HBoxContainer.new()
	column.add_child(top)
	var eyebrow := label(top,tr(marker),10,CYAN)
	eyebrow.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	var close_button := button(top,"×",_close,false)
	close_button.custom_minimum_size = Vector2(32,30)
	close_button.add_theme_font_size_override("font_size",20)
	close_button.tooltip_text = tr("Zamknij") + " · Esc"
	var title := label(column,tr(heading),28,INK)
	title.add_theme_font_override("font",DISPLAY_FONT)
	if not subtitle.is_empty():
		var description := label(column,tr(subtitle),13,MUTED)
		description.autowrap_mode = TextServer.AUTOWRAP_WORD_SMART
	column.add_child(rule())
	var scroll := ScrollContainer.new()
	scroll.size_flags_vertical = Control.SIZE_EXPAND_FILL
	scroll.horizontal_scroll_mode = ScrollContainer.SCROLL_MODE_DISABLED
	column.add_child(scroll)
	body = VBoxContainer.new()
	body.size_flags_horizontal = Control.SIZE_EXPAND_FILL
	body.add_theme_constant_override("separation",16)
	scroll.add_child(body)
	column.add_child(rule())
	footer = HBoxContainer.new()
	footer.alignment = BoxContainer.ALIGNMENT_END
	footer.add_theme_constant_override("separation",10)
	column.add_child(footer)
	get_viewport().size_changed.connect(_layout)
	panel.minimum_size_changed.connect(_layout)
	_layout.call_deferred()

func _layout() -> void:
	var viewport_size := get_viewport().get_visible_rect().size
	var extent := preferred_size.min(viewport_size-Vector2(48,48))
	panel.size = extent
	var factor := minf(1.0,minf((viewport_size.x-48)/maxf(1,panel.size.x),(viewport_size.y-48)/maxf(1,panel.size.y)))
	panel.scale = Vector2.ONE*factor
	panel.position = (viewport_size-panel.size*factor)*0.5

func _unhandled_input(event: InputEvent) -> void:
	if visible and event is InputEventKey and event.pressed and not event.echo and event.keycode == KEY_ESCAPE:
		get_viewport().set_input_as_handled()
		_close()

func _close() -> void:
	if _closing: return
	_closing = true
	hide()
	closed.emit()
	queue_free()

func popup_centered() -> void:
	show()
	_layout()

static func box(background: Color, border: Color, margin: int = 14) -> StyleBoxFlat:
	var style := StyleBoxFlat.new()
	style.bg_color = background
	style.border_color = border
	style.set_border_width_all(1)
	style.set_corner_radius_all(9)
	style.set_content_margin_all(margin)
	style.shadow_color = Color(0,0,0,0.25)
	style.shadow_size = 12
	return style

static func rule() -> ColorRect:
	var line := ColorRect.new()
	line.custom_minimum_size.y = 1
	line.color = Color("304653")
	return line

static func label(parent: Node, caption: String, font_size: int = 14, color: Color = INK) -> Label:
	var node := Label.new()
	node.text = caption
	node.add_theme_font_override("font",ThemeDB.fallback_font)
	node.add_theme_font_size_override("font_size",font_size)
	node.add_theme_color_override("font_color",color)
	parent.add_child(node)
	return node

static func button(parent: Node, caption: String, action: Callable, primary: bool = false) -> Button:
	var node := Button.new()
	node.text = caption
	node.custom_minimum_size = Vector2(112,42)
	node.mouse_default_cursor_shape = Control.CURSOR_POINTING_HAND
	node.add_theme_font_override("font",ThemeDB.fallback_font)
	node.add_theme_font_size_override("font_size",14)
	style_button(node, primary)
	node.pressed.connect(action)
	parent.add_child(node)
	return node

static func style_button(node: Button, primary: bool = false) -> void:
	var accent := GOLD if primary else CYAN
	node.add_theme_color_override("font_color",INK)
	node.add_theme_color_override("font_hover_color",Color.WHITE)
	node.add_theme_color_override("font_disabled_color",Color("617681"))
	node.add_theme_stylebox_override("normal",box(Color("30291f") if primary else Color("102431"),Color(accent,0.45),10))
	node.add_theme_stylebox_override("hover",box(Color("453725") if primary else Color("1b3b4a"),accent,10))
	node.add_theme_stylebox_override("pressed",box(Color("3c3023") if primary else Color("183b47"),accent,10))
	node.add_theme_stylebox_override("disabled",box(Color("101b24"),Color("293d48"),10))
	node.add_theme_stylebox_override("focus",box(Color(0,0,0,0),accent,10))

static func input_style(node: Control) -> void:
	node.add_theme_font_override("font",ThemeDB.fallback_font)
	node.add_theme_font_size_override("font_size",15)
	node.add_theme_color_override("font_color",INK)
	if node is LineEdit:
		node.add_theme_stylebox_override("normal",box(Color("07131d"),Color("345461"),12))
		node.add_theme_stylebox_override("focus",box(Color("0c1e2b"),CYAN,12))
	elif node is Button: style_button(node)