# (c) 2023-present Eroax
# (c) 2023-present Yagich
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
extends Control
class_name DeckHolderRenderer

## Renderer class for [DeckHolder]
##
## Entry point for the [GraphEdit] based Renderer

## Reference to the base scene for [DeckRendererGraphEdit]
@export var DECK_SCENE: PackedScene
@export var DEBUG_DECKS_LIST: PackedScene
@export var DEBUG_NODES_LIST: PackedScene

const PERSISTENCE_NAMESPACE := "default"

## Reference to the main windows [TabContainerCustom]
@onready var tab_container := %TabContainerCustom as TabContainerCustom
## Reference to the [FileDialog] used for File operations through the program.
@onready var file_dialog: FileDialog = $FileDialog

## Enum for storing the Options in the "File" PopupMenu.
enum FileMenuId {
	NEW,
	OPEN,
	SAVE = 3,
	SAVE_AS,
	CLOSE = 6,
	RECENTS,
}
@onready var file_popup_menu: PopupMenu = %File as PopupMenu
var max_recents := 4
var recent_files := []
var recent_path: String
@onready var unsaved_changes_dialog_single_deck := $UnsavedChangesDialogSingleDeck as UnsavedChangesDialogSingleDeck
@onready var unsaved_changes_dialog: ConfirmationDialog = $UnsavedChangesDialog

enum ConnectionsMenuId {
	OBS,
	TWITCH,
	RPC,
}
@onready var connections_popup_menu: PopupMenu = %Connections

enum DebugMenuId {
	DECKS,
	NODES,
	EMBED_SUBWINDOWS,
}
@onready var debug_popup_menu: PopupMenu = %Debug

enum HelpMenuId {
	DOCS,
	ABOUT,
}
@onready var about_dialog: AcceptDialog = %AboutDialog

enum EditMenuId {
	COPY,
	PASTE,
	DUPLICATE,
	SETTINGS,
}
@onready var edit_popup_menu: PopupMenu = %Edit
@onready var settings_dialog: SettingsDialog = %SettingsDialog

## Weak Reference to the Deck that is currently going to be saved.
var _deck_to_save: WeakRef

@onready var no_obsws := %NoOBSWS as NoOBSWS

@onready var obs_setup_dialog := $OBSWebsocketSetupDialog as OBSWebsocketSetupDialog
@onready var twitch_setup_dialog := $Twitch_Setup_Dialog as TwitchSetupDialog

@onready var bottom_dock: BottomDock = %BottomDock
@onready var sidebar_split: HSplitContainer = %SidebarSplit
@onready var sidebar: Sidebar = %Sidebar as Sidebar

@onready var compat_dialog: ConfirmationDialog = %CompatDialog

signal quit_completed()


func _ready() -> void:
	tab_container.add_button_pressed.connect(add_empty_deck)
	tab_container.tab_changed.connect(_on_tab_container_tab_changed)
	tab_container.tab_about_to_change.connect(_on_tab_container_tab_about_to_change)
	RendererPersistence.init_namespace(PERSISTENCE_NAMESPACE)
	
	var embed_subwindows: bool = RendererPersistence.get_or_create(PERSISTENCE_NAMESPACE, "config", "embed_subwindows", true)
	debug_popup_menu.set_item_checked(
		DebugMenuId.EMBED_SUBWINDOWS,
		embed_subwindows
		)
	
	get_tree().get_root().gui_embed_subwindows = embed_subwindows
	file_dialog.use_native_dialog = not embed_subwindows
	
	recent_files = RendererPersistence.get_or_create(
		PERSISTENCE_NAMESPACE, "config",
		"recent_files", []
		)
	recent_path = RendererPersistence.get_or_create(
		PERSISTENCE_NAMESPACE, "config",
		"recent_path", OS.get_system_dir(OS.SYSTEM_DIR_DOCUMENTS)
	)
	
	RendererShortcuts.load_overrides()
	
	reset_popup_menu_shortcuts()
	
	add_recents_to_menu()

	tab_container.tab_close_requested.connect(request_tab_close)

	file_dialog.canceled.connect(disconnect_file_dialog_signals)
	Connections.obs_websocket = no_obsws
	Connections.twitch = %Twitch_Connection
	
	no_obsws.event_received.connect(
		func(m: NoOBSWS.Message):
			Connections._obs_event_received(m.get_data())
			)
	
	Connections.twitch.chat_received_rich.connect(Connections._twitch_chat_received)
	
	bottom_dock.variable_viewer.top_field_edited.connect(
		func(old_name: String, new_name: String, new_value: Variant) -> void:
			get_active_deck_renderer().dirty = true
			get_active_deck().update_variable(old_name, new_name, new_value)
	)
	
	bottom_dock.variable_viewer.top_field_removed.connect(
		func(field_name: String) -> void:
			get_active_deck_renderer().dirty = true
			get_active_deck().remove_variable(field_name)
	)
	
	sidebar_split.dragger_visibility = SplitContainer.DRAGGER_HIDDEN_COLLAPSED
	sidebar.go_to_node_requested.connect(
		func(node_id: String) -> void:
			# we can reasonably assume its the current deck
			var deck := get_active_deck()
			var node := deck.get_node(node_id)
			var deck_renderer := get_active_deck_renderer()
			deck_renderer.focus_node(deck_renderer.get_node_renderer(node))
	)
	
	connections_popup_menu.set_item_tooltip(ConnectionsMenuId.RPC, "RPC support has been removed and will return in a future version.")


func reset_popup_menu_shortcuts() -> void:
	file_popup_menu.set_item_shortcut(FileMenuId.NEW, RendererShortcuts.get_shortcut("new_deck"))
	file_popup_menu.set_item_shortcut(FileMenuId.OPEN, RendererShortcuts.get_shortcut("open_deck"))
	file_popup_menu.set_item_shortcut(FileMenuId.SAVE, RendererShortcuts.get_shortcut("save_deck"))
	file_popup_menu.set_item_shortcut(FileMenuId.SAVE_AS, RendererShortcuts.get_shortcut("save_deck_as"))
	file_popup_menu.set_item_shortcut(FileMenuId.CLOSE, RendererShortcuts.get_shortcut("close_deck"))

	edit_popup_menu.set_item_shortcut(EditMenuId.COPY, RendererShortcuts.get_shortcut("copy_nodes"))
	edit_popup_menu.set_item_shortcut(EditMenuId.PASTE, RendererShortcuts.get_shortcut("paste_nodes"))
	edit_popup_menu.set_item_shortcut(EditMenuId.DUPLICATE, RendererShortcuts.get_shortcut("duplicate_nodes"))
	edit_popup_menu.set_item_shortcut(EditMenuId.SETTINGS, RendererShortcuts.get_shortcut("settings"))


func reset_recents_shortcuts() -> void:
	for i in recent_files.size():
		var s := RendererShortcuts.get_shortcut("open_recent_deck_%s" % [i + 1])
		file_popup_menu.set_item_shortcut(file_popup_menu.get_item_count() - recent_files.size() + i, s)


func _notification(what: int) -> void:
	if what == RendererShortcuts.NOTIFICATION_SHORTCUTS_UPDATED:
		reset_popup_menu_shortcuts()


func _on_tab_container_tab_about_to_change(previous_tab: int) -> void:
	var deck := get_deck_at_tab(previous_tab)
	if deck == null:
		sidebar.set_edited_deck()
		return

	Util.safe_disconnect(deck.variables_updated, bottom_dock.rebuild_variable_tree)
	
	var deck_renderer := get_deck_renderer_at_tab(previous_tab)
	Util.safe_disconnect(deck_renderer.node_selected, set_sidebar_node)
	Util.safe_disconnect(deck_renderer.node_deselected, set_sidebar_node)
	
	Util.pop_batch(&"sidebar_signals")


func _on_tab_container_tab_changed(tab: int) -> void:
	var deck := get_active_deck()
	if deck == null:
		sidebar.set_edited_deck()
		return
	var is_group = tab_container.get_tab_metadata(tab, "group", false)
	file_popup_menu.set_item_disabled(FileMenuId.SAVE, is_group)
	file_popup_menu.set_item_disabled(FileMenuId.SAVE_AS, is_group)
	bottom_dock.rebuild_variable_tree(get_active_deck().variable_stack)
	deck.variables_updated.connect(bottom_dock.rebuild_variable_tree.bind(deck.variable_stack))
	
	sidebar.set_edited_deck(deck.id)
	get_active_deck_renderer().node_selected.connect(set_sidebar_node)
	get_active_deck_renderer().node_deselected.connect(set_sidebar_node)
	#get_active_deck_renderer().nodes_about_to_delete.connect(sidebar.set_edited_node)
	sidebar.refresh_node_list()
	
	var batch := Util.batch_begin()
	batch.add(deck.node_added, refresh_sidebar_node_list)
	batch.add(deck.node_removed, refresh_sidebar_node_list)
	#batch.add(get_active_deck_renderer().nodes_about_to_delete, sidebar.set_edited_node)
	Util.push_batch(batch, &"sidebar_signals")


func set_sidebar_node(_node: Node) -> void:
	var count = get_active_deck_renderer().get_selected_nodes().size()
	if count != 1:
		sidebar.set_edited_node()
		return
	
	var dnode := (get_active_deck_renderer().get_selected_nodes()[0] as DeckNodeRendererGraphNode).node
	sidebar.set_edited_node(dnode._id)


func refresh_sidebar_node_list(_unused1 = null, _unused2 = null, _unused3 = null) -> void:
	sidebar.refresh_node_list()


## Called when the File button in the [MenuBar] is pressed with the [param id]
## of the button within it that was pressed.
func _on_file_id_pressed(id: int) -> void:
	match id:
		FileMenuId.NEW:
			add_empty_deck()
		FileMenuId.OPEN:
			open_open_dialog(recent_path)
		FileMenuId.SAVE when tab_container.get_tab_count() > 0:
			save_active_deck()
		FileMenuId.SAVE_AS when tab_container.get_tab_count() > 0:
			open_save_dialog(tab_container.get_tab_metadata(tab_container.get_current_tab(), "path"))
		FileMenuId.CLOSE:
			request_tab_close(tab_container.get_current_tab())
		_ when id in range(FileMenuId.RECENTS, FileMenuId.RECENTS + max_recents + 1):
			open_deck_at_path(recent_files[id - FileMenuId.RECENTS - 1])


func _on_edit_id_pressed(id: int) -> void:
	match id:
		EditMenuId.SETTINGS:
			settings_dialog.popup_centered()
		EditMenuId.COPY:
			var r := get_active_deck_renderer()
			r._on_copy_nodes_request()
		EditMenuId.PASTE:
			var r := get_active_deck_renderer()
			r._on_paste_nodes_request()
		EditMenuId.DUPLICATE:
			var r := get_active_deck_renderer()
			r._on_duplicate_nodes_request()


func _on_edit_about_to_popup() -> void:
	# enable/disable the copy/paste buttons depending on if there's a deck renderer and if it has nodes selected
	if tab_container.get_tab_count() == 0:
		edit_popup_menu.set_item_disabled(EditMenuId.COPY, true)
		edit_popup_menu.set_item_disabled(EditMenuId.PASTE, true)
		edit_popup_menu.set_item_disabled(EditMenuId.DUPLICATE, true)
		return
	
	edit_popup_menu.set_item_disabled(EditMenuId.PASTE, false)
	var r := get_active_deck_renderer()
	edit_popup_menu.set_item_disabled(EditMenuId.COPY, r.get_selected_nodes().size() == 0)
	edit_popup_menu.set_item_disabled(EditMenuId.DUPLICATE, r.get_selected_nodes().size() == 0)


## Adds an empty [DeckRendererGraphEdit] with a corresponding [Deck] for it's data.
func add_empty_deck() -> void:
	var deck := DeckHolder.add_empty_deck()
	var inst: DeckRendererGraphEdit = DECK_SCENE.instantiate()
	inst.deck = deck
	var tab := tab_container.add_content(inst, "<unsaved deck>")
	tab_container.set_tab_metadata(tab, "id", deck.id)
	tab_container.set_tab_metadata(tab, "group", false)
	tab_container.set_tab_metadata(tab, "path", recent_path.path_join(""))
	inst.group_enter_requested.connect(_on_deck_renderer_group_enter_requested)
	inst.dirty_state_changed.connect(_on_deck_renderer_dirty_state_changed.bind(inst))
	tab_container.set_current_tab(tab)
	bottom_dock.variable_viewer.enable_new_button()


## Closes the current tab in [member tab_container]
func close_current_tab() -> void:
	tab_container.close_tab(tab_container.get_current_tab())


func request_tab_close(tab: int):
	if tab_container.get_tab_metadata(tab, "dirty") and not tab_container.get_tab_metadata(tab, "group"):
		unsaved_changes_dialog_single_deck.set_meta("tab", tab)
		unsaved_changes_dialog_single_deck.show()
		return
	await close_tab(tab)


func close_tab(tab: int) -> void:
	if not tab_container.get_tab_metadata(tab, "group"):
		var groups := DeckHolder.close_deck(tab_container.get_tab_metadata(tab, "id"))
		# close tabs associated with this deck's groups
		for group in groups:
			for c_tab in range(tab_container.get_tab_count() - 1, -1, -1):
				if tab_container.get_tab_metadata(c_tab, "id") == group:
					tab_container.close_tab(c_tab)
					await get_tree().process_frame
	
	tab_container.close_tab(tab)
	if tab_container.get_tab_count() == 0:
		bottom_dock.variable_viewer.disable_new_button()
		bottom_dock.rebuild_variable_tree()
		sidebar.clear_node_list()
		sidebar.set_edited_deck()


## Opens [member file_dialog] with the mode [member FileDialog.FILE_MODE_SAVE_FILE]
## as well as getting a weakref to the active [Deck]
func open_save_dialog(path: String) -> void:
	file_dialog.file_mode = FileDialog.FILE_MODE_SAVE_FILE
	file_dialog.title = "Save a Deck"
	file_dialog.current_path = path if not path.is_empty() else recent_path
	_deck_to_save = weakref(get_active_deck())
	file_dialog.popup_centered()
	file_dialog.file_selected.connect(_on_file_dialog_save_file, CONNECT_ONE_SHOT)


## Opens [member file_dialog] with the mode [FileDialog.FILE_MODE_OPEN_FILES]
## with the supplied [param path]
func open_open_dialog(path: String) -> void:
	#file_dialog.file_mode = FileDialog.FILE_MODE_OPEN_FILES
	# TODO: disabled opening multiple for now until better compat dialog method is found
	file_dialog.file_mode = FileDialog.FILE_MODE_OPEN_FILE
	#file_dialog.title = "Open Deck(s)"
	file_dialog.title = "Open Deck"
	file_dialog.current_path = path + "/"
	file_dialog.popup_centered()
	#file_dialog.files_selected.connect(_on_file_dialog_open_files, CONNECT_ONE_SHOT)
	file_dialog.file_selected.connect(open_deck_at_path, CONNECT_ONE_SHOT)


## Connected to [signal FileDialog.save_file] on [member file_dialog].
## Saves the selected [Deck] if it still exists.
func _on_file_dialog_save_file(path: String) -> void:
	var deck: Deck = _deck_to_save.get_ref() as Deck
	if not deck:
		return

	deck.save_path = path
	tab_container.set_tab_title(tab_container.get_current_tab(), path.get_file())
	var renderer: DeckRendererGraphEdit = tab_container.get_content(tab_container.get_current_tab()) as DeckRendererGraphEdit
	renderer.dirty = false
	# TODO: put this into DeckHolder instead
	var json := JSON.stringify(deck.to_dict(), "\t")
	var f := FileAccess.open(path, FileAccess.WRITE)
	f.store_string(json)
	add_recent_file(get_active_deck().save_path)
	recent_path = path.get_base_dir()
	RendererPersistence.set_value(PERSISTENCE_NAMESPACE, "config", "recent_path", recent_path)


## Connected to [signal FileDialog.open_files] on [member file_dialog].  Opens
## the selected paths, instantiating [DeckRenderGraphEdit]s and [Deck]s for each.
func _on_file_dialog_open_files(paths: PackedStringArray) -> void:
	for path in paths:
		open_deck_at_path(path)


func open_deck_at_path(path: String) -> void:
	for tab in tab_container.get_tab_count():
		if tab_container.get_tab_metadata(tab, "path") == path:
			tab_container.set_current_tab(tab)
			return
	
	var f := FileAccess.open(path, FileAccess.READ)
	if f.get_error() != OK:
		return
	
	var deck_data: Dictionary = JSON.parse_string(f.get_as_text())
	if DeckHolder.get_deck_compat(deck_data) != 0:
		compat_dialog.set_meta(&"path", path)
		file_dialog.hide()
		compat_dialog.popup_centered()
		return
	
	open_deck_from_dict(deck_data, path)


func open_deck_from_dict(data: Dictionary, path: String) -> void:
	var deck := DeckHolder.open_deck_from_dict(data, path)
	if deck == null:
		DeckHolder.logger.toast_error("Error loading deck at path: %s" % path)
		return
	var inst: DeckRendererGraphEdit = DECK_SCENE.instantiate()
	inst.deck = deck
	var tab := tab_container.add_content(inst, path.get_file())
	tab_container.set_tab_metadata(tab, "id", deck.id)
	tab_container.set_tab_metadata(tab, "group", false)
	tab_container.set_tab_metadata(tab, "path", path)
	inst.initialize_from_deck()
	inst.group_enter_requested.connect(_on_deck_renderer_group_enter_requested)
	inst.dirty_state_changed.connect(_on_deck_renderer_dirty_state_changed.bind(inst))
	add_recent_file(path)
	recent_path = path.get_base_dir()
	RendererPersistence.set_value(PERSISTENCE_NAMESPACE, "config", "recent_path", recent_path)
	tab_container.set_current_tab(tab)
	bottom_dock.variable_viewer.enable_new_button()


## Returns the current deck in the [member tab_container].
func get_active_deck() -> Deck:
	return get_deck_at_tab(tab_container.get_current_tab())


## Returns the deck at [param tab] in the [member tab_container].
func get_deck_at_tab(tab: int) -> Deck:
	var r := get_deck_renderer_at_tab(tab)
	if is_instance_valid(r.deck):
		return get_deck_renderer_at_tab(tab).deck
	else:
		return null


## Returns the current deck renderer in the [member tab_container].
func get_active_deck_renderer() -> DeckRendererGraphEdit:
	return get_deck_renderer_at_tab(tab_container.get_current_tab())


## Returns the deck renderer at [param tab] in the [member tab_container].
func get_deck_renderer_at_tab(tab: int) -> DeckRendererGraphEdit:
	if tab_container.is_empty():
		return null
	
	return tab_container.get_content(tab) as DeckRendererGraphEdit


## Saves the active [Deck] in [member tab_container]
func save_active_deck() -> void:
	save_tab(tab_container.get_current_tab())


func save_tab(tab: int) -> void:
	if tab_container.get_tab_metadata(tab, "group"):
		return

	var renderer := tab_container.get_content(tab) as DeckRendererGraphEdit
	var deck := renderer.deck
	if deck.save_path.is_empty():
		#open_save_dialog("res://") # what the fuck?
		open_save_dialog(tab_container.get_tab_metadata(tab, "path", recent_path))
	else:
		var json := JSON.stringify(deck.to_dict(), "\t")
		var f := FileAccess.open(deck.save_path, FileAccess.WRITE)
		f.store_string(json)
		add_recent_file(deck.save_path)
		renderer.dirty = false


## Disconnects the [FileDialog] signals if they are already connected.
func disconnect_file_dialog_signals() -> void:
	if file_dialog.file_selected.is_connected(_on_file_dialog_save_file):
		file_dialog.file_selected.disconnect(_on_file_dialog_save_file)

	if file_dialog.files_selected.is_connected(_on_file_dialog_open_files):
		file_dialog.files_selected.disconnect(_on_file_dialog_open_files)
	
	if file_dialog.file_selected.is_connected(open_deck_at_path):
		file_dialog.file_selected.disconnect(open_deck_at_path)


## Connected to [signal DeckRenderGraphEdit.group_entered_request] to allow entering
## groups based off the given [param group_id] and [param deck].  As well as adding
## a corresponding tab to [member tab_container]
func _on_deck_renderer_group_enter_requested(group_id: String) -> void:
	#var group_deck := deck.get_group(group_id)
	for tab in tab_container.get_tab_count():
		if tab_container.get_tab_metadata(tab, "id") == group_id:
			tab_container.set_current_tab(tab)
			return
	var group_deck := DeckHolder.get_deck(group_id)
	var deck_renderer: DeckRendererGraphEdit = DECK_SCENE.instantiate()
	deck_renderer.deck = group_deck
	deck_renderer.initialize_from_deck()
	var title := ""
	if group_deck.is_library:
		title = "(L) %s" % group_deck.id
	else:
		title = "(G) %s" % group_id.left(8)
	var tab := tab_container.add_content(deck_renderer, title)
	tab_container.set_tab_metadata(tab, "id", group_id)
	tab_container.set_tab_metadata(tab, "group", true)
	deck_renderer.group_enter_requested.connect(_on_deck_renderer_group_enter_requested)
	tab_container.set_current_tab(tab)


func _on_connections_id_pressed(id: int) -> void:
	match id:
		ConnectionsMenuId.OBS:
			obs_setup_dialog.popup_centered()
		ConnectionsMenuId.TWITCH:
			twitch_setup_dialog.popup_centered()


func _on_obs_websocket_setup_dialog_connect_button_pressed(state: OBSWebsocketSetupDialog.ConnectionState) -> void:
	match state:
		OBSWebsocketSetupDialog.ConnectionState.DISCONNECTED:
			obs_setup_dialog.set_button_state(OBSWebsocketSetupDialog.ConnectionState.CONNECTING)
			no_obsws.subscriptions = obs_setup_dialog.get_subscriptions()
			no_obsws.connect_to_obsws(obs_setup_dialog.get_port(), obs_setup_dialog.get_password())
			await no_obsws.connection_ready
			obs_setup_dialog.set_button_state(OBSWebsocketSetupDialog.ConnectionState.CONNECTED)
		OBSWebsocketSetupDialog.ConnectionState.CONNECTED:
			no_obsws.disconnect_from_obsws()
			obs_setup_dialog.set_button_state(OBSWebsocketSetupDialog.ConnectionState.DISCONNECTED)


func _process(delta: float) -> void:
	DeckHolder.send_event(&"process", {"delta": delta})


func _on_debug_id_pressed(id: int) -> void:
	match id:
		DebugMenuId.DECKS:
			var d := AcceptDialog.new()
			var debug_decks: DebugDecksList = DEBUG_DECKS_LIST.instantiate()
			d.add_child(debug_decks)
			d.canceled.connect(d.queue_free)
			d.confirmed.connect(d.queue_free)
			debug_decks.item_pressed.connect(_on_debug_decks_viewer_item_pressed)
			add_child(d)
			d.popup_centered()
		DebugMenuId.NODES:
			var d := AcceptDialog.new()
			var debug_nodes: DebugNodesList = DEBUG_NODES_LIST.instantiate()
			d.add_child(debug_nodes)
			d.canceled.connect(d.queue_free)
			d.confirmed.connect(d.queue_free)
			debug_nodes.build(get_active_deck())
			add_child(d)
			d.popup_centered()
		DebugMenuId.EMBED_SUBWINDOWS:
			var c := debug_popup_menu.is_item_checked(id)
			debug_popup_menu.set_item_checked(id, not c)
			get_tree().get_root().gui_embed_subwindows = not c
			RendererPersistence.set_value(PERSISTENCE_NAMESPACE, "config", "embed_subwindows", not c)
			file_dialog.use_native_dialog = c


func _on_debug_decks_viewer_item_pressed(deck_id: String, instance_id: String) -> void:
	if instance_id == "":
		var deck := DeckHolder.get_deck(deck_id)
		var inst: DeckRendererGraphEdit = DECK_SCENE.instantiate()
		inst.deck = deck
		var tab := tab_container.add_content(inst, "<Deck %s>" % [deck_id.left(8)])
		tab_container.set_tab_metadata(tab, "id", deck.id)
		inst.initialize_from_deck()
		inst.group_enter_requested.connect(_on_deck_renderer_group_enter_requested)
		tab_container.set_current_tab(tab)
	else:
		var deck := DeckHolder.get_group_instance(deck_id, instance_id)
		var inst: DeckRendererGraphEdit = DECK_SCENE.instantiate()
		inst.deck = deck
		var tab := tab_container.add_content(inst, "<Group %s::%s>" % [deck_id.left(8), instance_id.left(8)])
		tab_container.set_tab_metadata(tab, "id", deck.id)
		inst.initialize_from_deck()
		inst.group_enter_requested.connect(_on_deck_renderer_group_enter_requested)
		tab_container.set_current_tab(tab)


func _on_deck_renderer_dirty_state_changed(renderer: DeckRendererGraphEdit) -> void:
	var idx: int = range(tab_container.get_tab_count()).filter(
		func(x: int):
			return tab_container.get_content(x) == renderer
	)[0]
	var title := tab_container.get_tab_title(idx).trim_suffix("(*)")
	if renderer.dirty:
		tab_container.set_tab_title(idx, "%s(*)" % title)
	else:
		tab_container.set_tab_title(idx, title.trim_suffix("(*)"))
	tab_container.set_tab_metadata(idx, "dirty", renderer.dirty)


func add_recent_file(path: String) -> void:
	var item := recent_files.find(path)
	if item == -1:
		recent_files.push_front(path)
	else:
		recent_files.push_front(recent_files.pop_at(item))
	recent_files = recent_files.slice(0, max_recents)
	
	add_recents_to_menu()


func add_recents_to_menu() -> void:
	if recent_files.is_empty():
		return
		
	if file_popup_menu.get_item_count() > FileMenuId.RECENTS + 1:
		var end := file_popup_menu.get_item_count() - FileMenuId.RECENTS - 1
		for i in end:
			file_popup_menu.remove_item(file_popup_menu.get_item_count() - 1)
	
	var reduce_length := recent_files.any(func(x: String): return x.length() > 35)
	
	for i in recent_files.size():
		var file = recent_files[i] as String
		if reduce_length:
			# shorten the basepath to be the first letter of all folders
			var base: String = Array(
				file.get_base_dir().split("/", false)
				).reduce(
					func(a: String, s: String):
						return a + s[0] + "/",
				"/")
			var filename := file.get_file()
			file = base.path_join(filename)
		
		file_popup_menu.add_item(file)
		
	reset_recents_shortcuts()
	RendererPersistence.set_value(PERSISTENCE_NAMESPACE, "config", "recent_files", recent_files)


func request_quit() -> void:
	RendererPersistence.commit(PERSISTENCE_NAMESPACE)
	
	if range(tab_container.get_tab_count()).any(func(x: int): return tab_container.get_content(x).dirty):
		unsaved_changes_dialog.show()
	else:
		for i in range(tab_container.get_tab_count() - 1, -1, -1):
			await close_tab(i)

		#get_tree().quit()
		quit_completed.emit()


func _on_unsaved_changes_dialog_single_deck_confirmed() -> void:
	save_tab(unsaved_changes_dialog_single_deck.get_meta("tab"))
	await close_tab(unsaved_changes_dialog_single_deck.get_meta("tab"))


func _on_unsaved_changes_dialog_single_deck_custom_action(action: StringName) -> void:
	if action == &"force_close":
		await close_tab(unsaved_changes_dialog_single_deck.get_meta("tab"))
		unsaved_changes_dialog_single_deck.hide()


func _on_unsaved_changes_dialog_confirmed() -> void:
	for i in range(tab_container.get_tab_count() - 1, -1, -1):
		await close_tab(i)
	#get_tree().quit()
	quit_completed.emit()


func _unhandled_key_input(event: InputEvent) -> void:
	if RendererShortcuts.check_shortcut("toggle_bottom_dock", event):
		bottom_dock.visible = !bottom_dock.visible
		accept_event()
	
	if RendererShortcuts.check_shortcut("toggle_sidebar", event):
		sidebar.visible = !sidebar.visible
		if sidebar.visible:
			sidebar_split.dragger_visibility = SplitContainer.DRAGGER_VISIBLE
		else:
			sidebar_split.dragger_visibility = SplitContainer.DRAGGER_HIDDEN_COLLAPSED


func _on_help_id_pressed(id: int) -> void:
	match id:
		HelpMenuId.ABOUT:
			about_dialog.show()
		HelpMenuId.DOCS:
			OS.shell_open("https://codeberg.org/Eroax/StreamGraph/wiki")


func _on_compat_dialog_confirmed() -> void:
	var path: String = compat_dialog.get_meta(&"path", "")
	var f := FileAccess.open(path, FileAccess.READ)
	if f.get_error() != OK:
		return
	
	# save a backup
	if path.split(".")[-2] != "old":
		var backup_path := "%s.old.deck" % path.trim_suffix(".deck")
		DirAccess.copy_absolute(path, backup_path)
	
	var deck_data: Dictionary = JSON.parse_string(f.get_as_text())
	open_deck_from_dict(deck_data, path)
	# set it as dirty to make sure the user resaves
	get_active_deck_renderer().dirty = true