extends ItemList

signal file_selected(path)
signal texture_selected(texture)

var _parent_display_name := "<parent directory>"
var _sep := "/"
var _dir := Directory.new()

export var root_dir: String
export var walkable := false
export var folder_texture: Texture = null
export var parent_folder_texture: Texture = null

func _ready():
	print_debug("root dir: ", root_dir)
	if root_dir != null and not root_dir.empty():
		populate(root_dir)

func populate(dir: String) -> void:
	print_debug("populate ", dir)
	clear()
	
	if _dir.change_dir(dir) != OK:
		print_debug("Cannot open path ", dir)
		assert(false)
		return
	
	_dir.list_dir_begin()
	var file_name := _dir.get_next()
	while file_name != "":
		if _dir.current_is_dir():
			if not walkable:
				pass
			elif file_name == "..":
				add_item(_parent_display_name, parent_folder_texture)
			elif file_name.begins_with("."):
				pass
			else:
				add_item(file_name, folder_texture)
		
		else:
			var ext := file_name.get_extension()
			if ext == "jpeg" or ext == "jpg" or ext == "png":
				var file_path := _dir.get_current_dir() + _sep + file_name
				add_item(file_name, load(file_path))
		
		file_name = _dir.get_next()
	_dir.list_dir_end()
	sort_items_by_text()

func _on_FileList_item_selected(index):
	emit_signal("texture_selected", get_item_icon(index))

#	if root_dir == null or root_dir.empty():
#		emit_signal("texture_selected", get_item_icon(index))
#		return
#
#	var item_text := get_item_text(index)
#	if item_text == _parent_display_name:
#		item_text = ".."
#	if _dir.dir_exists(item_text):
#		populate(item_text)
#	else:
#		var full_path = root_dir + _sep + item_text
#		emit_signal("file_selected", full_path)