private Dictionary <string, object> getItemUpdates(AccountWin account, Guid identifier, List <ChangedProperty> changedProperties)
{
BaseItemWin item = account.Find(identifier);
if (item == null)
{
return(null);
}
if (changedProperties.Any(i => i.PropertyName == BaseItemWin.PropertyNames.All))
{
foreach (ChangedProperty p in changedProperties)
{
p.HasBeenSent = true;
}
return(item.SerializeToDictionary());
}
Dictionary <string, object> answer = new Dictionary <string, object>();
answer["Identifier"] = identifier;
answer["Updated"] = item.Updated;
foreach (ChangedProperty p in changedProperties)
{
answer[p.PropertyName.ToString()] = item.GetPropertyValue(p.PropertyName);
p.HasBeenSent = true;
}
return(answer);
}
/// <summary>
/// As long as Json.NET is used, it'll serialize dictionaries correctly. DataContractJson formats them as Key: xx Value: xx, which is incorrect.
/// </summary>
/// <param name="accountWin"></param>
/// <returns></returns>
public IEnumerable <Dictionary <string, object> > GetUpdates(AccountWin accountWin)
{
List <Dictionary <string, object> > answer = new List <Dictionary <string, object> >();
foreach (var pair in Changes)
{
Dictionary <string, object> item = getItemUpdates(accountWin, pair.Key, pair.Value);
if (item != null)
{
answer.Add(item);
}
}
return(answer);
}
/// <summary>
/// Ensures there's only one reference of each account. Creates new account object if account file wasn't found.
/// </summary>
/// <param name="localAccountId"></param>
/// <returns></returns>
/// <exception cref="Exception">Throws exception if the folder for the account isn't found.</exception>
private static async Task <AccountWin> getAccount(LoginWin login)
{
if (login.Account != null)
{
return(login.Account);
}
StorageFolder accountFolder = await GetAccountFolder(login.LocalAccountId);
if (accountFolder == null)
{
throw new Exception("The folder for the requested account with id " + login.LocalAccountId + " wasn't found.");
}
//using (Stream s = await StorageHelper.LoadStream(accountFolder, Files.ACCOUNT_FILE))
//{
// if (s != null)
// UIHandler.ShowMessageBox(new StreamReader(s).ReadToEnd(), "Data");
// //return null;
//}
AccountWin account = await StorageHelper.Load <AccountWin>(accountFolder, Files.ACCOUNT_FILE);
if (account == null)
{
account = new AccountWin();
}
//just in case data was randomly wiped, we'll make sure it syncs everything
//if (account.School.Years.Count == 0)
// account.CurrentChangeNumber = 0;
//throw new ArgumentException("The account with id " + login.LocalAccountId + " was not found.");
account.Login = login;
login.Account = account;
account.Initialize();
return(account);
}
/// <summary>
/// Returns all the updated items
/// </summary>
/// <param name="offset"></param>
/// <returns></returns>
public UpdatedItems Serialize(AccountWin account)
{
UpdatedItems answer = new UpdatedItems();
//foreach (var pair in _changedItems)
//{
// if (pair.Value.IsUpdated)
// {
// //mark it sent
// pair.Value.HasBeenSent = true;
// //find its item
// BaseItemWin entity = account.Find(pair.Key);
// if (entity == null)
// continue;
// //add the serialized item to the list
// answer.Add(entity.Serialize());
// }
//}
return(answer);
}
