private IDataGetter CombineDataFromStorages(IDataGetter currentData, IDataGetter receivedData)
{
// currentData по определению не может быть null
if (currentData == null)
{
throw new ArgumentNullException(nameof(currentData));
}
// receivedData может быть null
if (receivedData == null)
{
return(currentData);
}
if (currentData.Equals(receivedData))
{
return(currentData);
}
else
{
IDataGetter returnedDataGetter;
if (currentData.Id != receivedData.Id)
{
// TODO: Вывод диалогового окна
throw new NotImplementedException();
}
else
{
// TODO: скомбинировать значения полей по правилам.
returnedDataGetter = new LastSessionsDataGetter(currentData, receivedData);
}
readerWriter.WriteAllData(new PlayerGameData(returnedDataGetter));
return(returnedDataGetter);
}
}