public void LoadApp()
{
string loginFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "login.txt");
bool doesFileExist = File.Exists(loginFile);
if (doesFileExist == false)
{
File.WriteAllText(loginFile, "");
}
string userLogin = File.ReadAllText(loginFile);
if (userLogin == "")
{
App.Current.MainPage = new LoginPage();
}
else
{
VDJAppSingletonInstance = VDJAppSingleton.Instance;
int allowedToLog = VDJAppSingletonInstance.ReloadInstance(userLogin);
if (allowedToLog == -1)
{
App.Current.MainPage = new LoginPage();
}
else
{
App.Current.MainPage = new MainPage();
}
}
}
public async Task LoadInfo()
{
int requestsNumber = 3 - VDJAppSingletonInstance.RequestNumber;
RequestsNumberInfo = "Number of song requests you can send: " + requestsNumber;
try
{
HttpResponseMessage userNumberResponse = await VDJAppSingletonInstance.HttpClientSi.GetAsync("api/Users/number");
if (userNumberResponse.IsSuccessStatusCode)
{
string jsonNumber = await userNumberResponse.Content.ReadAsStringAsync();
int userNumber = JsonConvert.DeserializeObject <int>(jsonNumber);
UsersNumberInfo = "There are " + userNumber + " people using app today!";
}
if (VDJAppSingletonInstance.SongList.Count == 0)
{
await VDJAppSingletonInstance.LoadSongDatabase();
VDJAppSingletonInstance.LoadVotes();
}
}
catch
{
await Application.Current.MainPage.DisplayAlert("Unable to connect", "Check your network connection and try different page", "OK");
}
}
public async Task TryLogin()
{
Username = Username.Trim();
if (Username.Length < 3)
{
NoLoginMessage = "Username too short!";
}
else if (Username.Length > 20)
{
NoLoginMessage = "Username too long!";
}
else
{
NoLoginMessage = "";
IsLoading = true;
IsButtonNotClicked = false;
try
{
HttpResponseMessage passwordHttpResponse = await VDJAppSingletonInstance.HttpClientSi.GetAsync("api/Users/password");
if (passwordHttpResponse.IsSuccessStatusCode)
{
string jsonCorrectPassword = await passwordHttpResponse.Content.ReadAsStringAsync();
string CorrectPassword = JsonConvert.DeserializeObject <string>(jsonCorrectPassword);
if (Password == CorrectPassword)
{
HttpResponseMessage isUniqueResponse = await VDJAppSingletonInstance.HttpClientSi.PostAsJsonAsync("api/Users/adduser", Username);
if (isUniqueResponse.IsSuccessStatusCode)
{
IsUsernameUnique = await isUniqueResponse.Content.ReadAsStringAsync();
if (IsUsernameUnique == "0")
{
NoLoginMessage = "Username already taken!";
}
else
{
VDJAppSingletonInstance.Username = Username;
string loginDate = DateTime.Now.ToString();
string stringToWrite = loginDate + "($||$)" + Username + "($||$)" + "0" + "($||$)";
string loginFile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "login.txt");
File.WriteAllText(loginFile, stringToWrite);
await VDJAppSingletonInstance.LoadSongDatabase();
App.Current.MainPage = new MainPage();
await Application.Current.MainPage.DisplayAlert("Vote for favourite songs!", "By pressing VOTE button in the top right corner you can vote for songs you like and help them get into top songs chart.", "OK");
}
}
else
{
NoLoginMessage = "Server error! Try again";
}
}
else
{
NoLoginMessage = "Wrong password!";
}
}
else
{
NoLoginMessage = "Server error! Try again";
}
}
catch
{
NoLoginMessage = "Unable to connect, check your network connection";
}
IsLoading = false;
IsButtonNotClicked = true;
}
}
