/// <summary>
/// Loads the programs state from the JSON serialized data file.
/// </summary>
/// <param name="path">Path pointing to the file.</param>
/// <param name="userMemento">The memento that will contain the user state.</param>
/// <param name="wordMemento">The memento that will contain the word storage.</param>
/// <returns></returns>
public static bool LoadFromDisk(NPath path, out UserStateMemento userMemento, out WordStoreMemento wordMemento)
{
if (path.FileExists())
{
var data = path.ReadAllText();
data = data.Trim();
if (data.StartsWith("{") && data.EndsWith("}"))
{
try
{
var deserializedData = JsonConvert.DeserializeObject <TemporaryData>(data);
userMemento = new UserStateMemento(deserializedData.mUserState);
wordMemento = new WordStoreMemento(deserializedData.mWordStore);
return(true);
}
catch (Exception exception)
{
Log.Error("Error while loading: {0}: {1}", exception.Source, exception.Message);
userMemento = null;
wordMemento = null;
return(false);
}
}
}
Log.Error("Incorrect data to load.");
userMemento = null;
wordMemento = null;
return(false);
}
/// <summary>
/// Saves the program state to the disk in JSON format.
/// </summary>
/// <param name="path"> Path on the disk with the file name, where the file should be saved.</param>
/// <param name="userMemento">Memento holding ready to serialize user state.</param>
/// <param name="wordMemento">Memento holding ready to serialize word storage.</param>
/// <returns>True if save, false otherwise.</returns>
public static bool SaveToDisk(NPath path, UserStateMemento userMemento, WordStoreMemento wordMemento)
{
path.CreateFile();
var temporaryData = new TemporaryData
{
mWordStore = wordMemento.GetData(), mUserState = userMemento.GetData()
};
try
{
path.WriteAllText(JsonConvert.SerializeObject(temporaryData, Formatting.Indented));
}
catch (Exception exception)
{
Log.Error("Error while saving: {0}: {1}", exception.Source, exception.Message);
return(false);
}
return(true);
}
/// <summary>
/// Loads the programs state from the JSON serialized data file.
/// </summary>
/// <param name="path">Path pointing to the file. Given as a string.</param>
/// <param name="userMemento">The memento that will contain the user state.</param>
/// <param name="wordMemento">The memento that will contain the word storage.</param>
/// <returns></returns>
public static bool LoadFromDisk(string path, out UserStateMemento userMemento, out WordStoreMemento wordMemento)
{
return(LoadFromDisk(new NPath(path), out userMemento, out wordMemento));
}
/// <summary>
/// Replaces the user state with the one stores in a given memento.
/// </summary>
public void OverwriteUserState(UserStateMemento memento)
{
mUserState = memento.GetData();
}
