extends Node

var _save_dictionary: Dictionary[NodePath, Variant] = {}

# Public Methods
func UpdateData(node_path: NodePath, value: Variant) -> void:
	_save_dictionary[node_path] = value


func GetData(node_path: NodePath) -> Variant:
	if not _save_dictionary.has(node_path):
		return null
	return _save_dictionary[node_path]


func HasData(node_path: NodePath) -> bool:
	return _save_dictionary.has(node_path)


func SaveToDisk() -> void:
	var save_file := FileAccess.open("user://savegame.save", FileAccess.WRITE)
	var json := JSON.stringify(_save_dictionary)
	
	save_file.store_line(json)


func LoadFromDisk() -> void:
	if not FileAccess.file_exists("user://savegame.save"):
		return
	var save_file = FileAccess.open("user://savegame.save", FileAccess.READ)
	print("Loading save file from path: %s" % save_file.get_path_absolute())
	var line := save_file.get_line()
	var json = JSON.new()
	var parse_result := json.parse(line)
	if parse_result != OK:
		print("Parsing result when loading file: [%s] in %s at line %d" % [json.get_error_message(), line, json.get_error_line()])
		return
	
	var data_dict: Dictionary = json.data
	var node_dict: Dictionary[NodePath, Variant]
	for key in data_dict:
		var value: Variant = data_dict[key]
		var node_path := NodePath(key)
		node_dict[node_path] = value
		
	_save_dictionary = node_dict


# Private Methods
func _ready() -> void:
	LoadFromDisk()