class_name DesktopWindow
extends Control

@export var desktop: Desktop # desktop
@export var maximized_windows: Control # maximized windows
@export var taskbar: Control # taskbar

var windowed_rect: Rect2

func get_descendants(node: Node) -> Array[Node]:
	var nodes: Array[Node] = []
	
	for child in node.get_children():
		if child.get_child_count() > 0:
			nodes.append(child)
			nodes.append_array(get_descendants(child))
		else:
			nodes.append(child)
	
	return nodes

func _ready() -> void:
	for descendant in get_descendants(self):
		descendant.gui_input.connect(_gui_input)

func _gui_input(event: InputEvent) -> void:
	if event is InputEventMouseButton:
		if event.pressed:
			if get_global_rect().has_point(get_global_mouse_position()):
				desktop.current_window = self
				get_parent().move_child(self, get_parent().get_child_count())

func _input(event: InputEvent):
	if event is InputEventKey:
		if event.keycode == KEY_F11:
			if event.pressed:
				if desktop.current_window == self:
					toggle_maximized()
		elif event.alt_pressed and event.keycode == KEY_UP:
			if event.pressed:
				if desktop.current_window == self:
					if not visible:
						visible = true
					elif not anchors_preset == Control.PRESET_FULL_RECT:
						windowed_rect = get_global_rect()
						set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)
		elif event.alt_pressed and event.keycode == KEY_DOWN:
			if event.pressed:
				if desktop.current_window == self:
					if anchors_preset == Control.PRESET_FULL_RECT:
						set_anchors_and_offsets_preset(Control.PRESET_TOP_LEFT)
						position = windowed_rect.position
						size = windowed_rect.size
					elif visible:
						visible = false

# toggle maximized
func toggle_maximized():
	if anchors_preset == Control.PRESET_FULL_RECT:
		set_anchors_and_offsets_preset(Control.PRESET_TOP_LEFT)
		position = windowed_rect.position
		size = windowed_rect.size
	else:
		windowed_rect = get_global_rect()
		set_anchors_and_offsets_preset(Control.PRESET_FULL_RECT)

func close():
	visible = false

func minimize():
	visible = false