class_name DemoSnapshot
extends RefCounted

const SCHEMA := 1
const DEFAULT_PATH := "user://mana_foundry_slot1.json"

static var path_override := ""


static func slot_path() -> String:
	if not path_override.is_empty():
		return path_override
	return DEFAULT_PATH


static func exists() -> bool:
	return FileAccess.file_exists(slot_path())


static func save_payload(payload: Dictionary) -> bool:
	var path := slot_path()
	var file := FileAccess.open(path, FileAccess.WRITE)
	if file == null:
		return false
	file.store_string(JSON.stringify(payload, "\t"))
	return true


static func load_payload() -> Dictionary:
	if not exists():
		return {}
	var file := FileAccess.open(slot_path(), FileAccess.READ)
	if file == null:
		return {}
	var parsed: Variant = JSON.parse_string(file.get_as_text())
	if typeof(parsed) != TYPE_DICTIONARY:
		return {}
	var payload: Dictionary = parsed
	if int(payload.get("schema", 0)) != SCHEMA:
		return {}
	return payload