extends VBoxContainer
class_name GroupMenu

const ITEM_SCENE := preload("res://UI/Components/InstallItem.tscn")

@onready var collapse_button: Button = %CollapseButton
@onready var header_icon: TextureRect = %HeaderIcon
@onready var header_text_label: Label = %HeaderTextLabel
@onready var header_custom_control_container: HBoxContainer = %HeaderCustomControlContainer
@onready var child_container: VBoxContainer = %ChildContainer
@onready var add_install_button_container: CenterContainer = %AddInstallButtonContainer
@onready var add_install_button: Button = %AddInstallButton
@onready var description_label: Label = %DescriptionLabel
@onready var inner_separator: HSeparator = %InnerSeparator

@onready var edit_group_button: Button = %EditGroupButton
@onready var delete_group_button: Button = %DeleteGroupButton

@onready var header_container: HBoxContainer = %HeaderContainer

@onready var install_edit_dialog: InstallEditDialog = %InstallEditDialog

var group_metadata: GroupMetadata

signal add_install_button_pressed

signal edit_group_button_pressed
signal delete_button_pressed
signal header_text_changed(new_text: String, old_text: String)


func _ready() -> void:
	collapse_button.pressed.connect(
		func():
			var b := collapse_button
			set_children_visible(b.button_pressed)
	)

	add_install_button.pressed.connect(add_new_install)
	install_edit_dialog.canceled.connect(install_edit_dialog.clear_ok_button_connections)
#	edit_group_button.pressed.connect(setup_rename)
	edit_group_button.pressed.connect(func(): edit_group_button_pressed.emit())
	delete_group_button.pressed.connect(func(): delete_button_pressed.emit())

	header_text_label.gui_input.connect(_on_header_text_label_gui_input)


func add_new_install() -> void:
	install_edit_dialog.clear()
	install_edit_dialog.ok_button_text = "Create"

	install_edit_dialog.confirmed.connect(
		func():
			var im := install_edit_dialog.get_install_metadata()
			var install_item: InstallItem = ITEM_SCENE.instantiate()
			child_container.add_child(install_item)
			install_item.setup_from_metadata(install_edit_dialog.get_install_metadata())
			install_item.edit_item_button_pressed.connect(edit_install.bind(install_item))
	, CONNECT_ONE_SHOT)

	install_edit_dialog.show()


func edit_install(install_item: InstallItem) -> void:
	install_edit_dialog.clear()
	install_edit_dialog.ok_button_text = "OK"
	install_edit_dialog.install_metadata = install_item.install_metadata
	install_edit_dialog.fill_from_install_metadata()

	install_edit_dialog.confirmed.connect(
		func():
			install_item.setup_from_metadata(install_edit_dialog.get_install_metadata())
	, CONNECT_ONE_SHOT)
	install_edit_dialog.show()


func free_item(at_idx: int) -> void:
	child_container.get_child(at_idx).queue_free()


func clear() -> void:
	child_container.get_children().map(
		func(child: Node):
			child.queue_free()
	)


func set_text(text: String) -> void:
	header_text_label.text = text


func get_text() -> String:
	return header_text_label.text


func set_description(text: String) -> void:
	if text == "":
		description_label.visible = false
		return

	description_label.visible = true
	description_label.text = text


func set_icon(icon: Texture2D) -> void:
	header_icon.texture = icon


func set_icon_visible(p_visible: bool) -> void:
	header_icon.visible = p_visible


func set_children_visible(p_visible: bool) -> void:
	collapse_button.text = "v" if p_visible else ">"
	child_container.visible = p_visible
	add_install_button_container.visible = p_visible
	inner_separator.visible = p_visible

	description_label.visible = p_visible && !description_label.text.is_empty()


func add_custom(control: Control) -> void:
	header_custom_control_container.add_child(control)


func setup_rename() -> void:
	header_text_label.visible = false
	var l := RenameLineEdit.new(header_text_label.text)
	l.size_flags_horizontal = header_text_label.size_flags_horizontal

#	edit_group_button.disabled = true
	var label_index := header_text_label.get_index()

	header_container.add_child(l)
	header_container.move_child(l, label_index)

	var reenable = func():
		header_text_label.visible = true
#		edit_group_button.disabled = false

	l.canceled.connect(reenable)

	l.text_submitted.connect(
		func(new_text: String):
			var old_text: = header_text_label.text
			header_text_label.text = new_text
			header_text_changed.emit(new_text, old_text)

			reenable.call()
	)

	l.grab_focus()


func setup_from_metadata(header_text: String, p_group_metadata: GroupMetadata) -> void:
	group_metadata = p_group_metadata
	set_text(header_text)
	set_description(group_metadata.description)
	# TODO: add installs
	# TODO: add icon


func _on_header_text_label_gui_input(event: InputEvent) -> void:
	if event is InputEventMouseButton && \
		(event as InputEventMouseButton).double_click && \
		(event as InputEventMouseButton).button_index == MOUSE_BUTTON_LEFT:
			get_viewport().set_input_as_handled()
			setup_rename()