public async Task <T> LoadAsync()
{
if (!File.Exists(_file))
{
return(await AskUserForStateIfUserEditableAsync());
}
string text;
if (_flags.HasFlag(StateHandlerFlags.UseCipher))
{
text = await Env.Cipher.TryDecryptFileAsync(_file);
if (text == null)
{
await AskUserToDeleteAsync();
text = "";
}
}
else
{
text = File.ReadAllText(_file);
}
_hash = Helper.GetSha256(text);
if ((Program.Reset || string.IsNullOrWhiteSpace(text)) && _flags.HasFlag(StateHandlerFlags.UserEditable))
{
return(await AskUserForStateAsync(text));
}
if (string.IsNullOrWhiteSpace(text))
{
return(UseCurrentState());
}
return(await ParseTextAsync(text));
}
public IStateHandler <T> Create <T>(T state, string file, StateHandlerFlags flags) where T : IState
{
if (flags.HasFlag(StateHandlerFlags.Exportable))
{
_exportableStateFiles.Add(new StateFile(file, flags));
}
return(new JsonStateHandler <T>(state, file, flags));
}
private byte[] _hash = new byte[0]; // We use this to check for changes.
public JsonStateHandler(T state, string file, StateHandlerFlags flags)
{
_state = state;
_file = Path.IsPathRooted(file) ? file :
Path.Combine(Env.Config.DataDir, file + (flags.HasFlag(StateHandlerFlags.UseCipher) ? "" : ".json"));
_flags = flags;
if (_flags.HasFlag(StateHandlerFlags.SavePeriodically))
{
Env.App.AddSaveAction(SaveAsync);
}
}