/// <summary>
/// Check survey, throws exception if it's invalid
/// </summary>
/// <param name="s"></param>
/// <returns>true if is fine and use it, false to ignore it</returns>
public bool CheckSurvey(Survey s)
{
if (!string.IsNullOrEmpty(s.Question))
{
if (string.IsNullOrEmpty(s.Answers[0]) || string.IsNullOrEmpty(s.Answers[1]))
{
throw new Exception(Resources.Labels.InvalidSurvey);
}
//remove nulls from array
List<string> answers = new List<string>();
foreach (string ans in s.Answers)
{
if (!string.IsNullOrEmpty(ans))
{
answers.Add(ans);
}
}
s.Answers = answers.ToArray();
}
else
{
bool anything = !string.IsNullOrEmpty(s.Question);
foreach(string item in s.Answers){
anything |= !string.IsNullOrEmpty(item);
}
if (anything)
{
throw new Exception(Resources.Labels.InvalidSurvey);
}
else
{
return false;
}
}
return true;
}
public PostPageViewModel()
{
_survey = new Survey() { Answers = new string[6] };
_webService = HttpService.CreateInstance();
SendMessageCommand = new SendMessageCommand(_webService);
SendMessageCommand.CanExecuteChanged += (o, e) =>
{
IsProgressVisible = !SendMessageCommand.CanExecute(null);
(Page.ApplicationBar.Buttons[SEND_INDEX] as ApplicationBarIconButton).IsEnabled = !IsProgressVisible;
};
}
public async override Task<ContextResult<bool>> SendMessage(string subject, string message, Survey survey, string threadId = null)
{
EnsureLoggedIn();
if (String.IsNullOrEmpty(Config.NickName) && String.IsNullOrEmpty(Config.FakeNickName))
{
throw new InvalidOperationException("User not even NickName set!");
}
string @params = JsonParamsCreator(PARAM_SUBJECT, subject,
PARAM_MESSAGE, message,
PARAM_SURVEY, (Survey)survey,
PARAM_THREAD_ID, threadId);
string jsonResponse = await PostData(Config.BaseURL + POST, @params);
return Parse<bool>(jsonResponse);
}