/// <summary>
/// Checks if account is already in database.
/// </summary>
/// <param name="accountItem">Account item to check.</param>
/// <returns>True if account is already in database, false otherwise.</returns>
public bool CheckIfAccountAlreadyExists(AccountItem accountItem)
{
try
{
var accounts = AccountService.GetAccountsAsync();
return(accounts.Any(a => a.UserName == accountItem.UserName));
}
catch (Exception e)
{
Console.WriteLine("Error Message : " + e.ToString());
return(false);
}
}
/// <summary>
/// Deletes the account information from the database.
/// </summary>
/// <param name="accountItem"> Account item to sign out.</param>
public void AccountSignOut(AccountItem accountItem)
{
try
{
if (accountItem == null)
{
throw new ArgumentNullException(nameof(accountItem));
}
// GetAccountByID return account instance with reference to the given ID
Account account = AccountService.GetAccountById(accountItem.AccountId);
// Deletes the account information from the account DB.
AccountService.DeleteAccount(account);
}
catch (Exception e)
{
Console.WriteLine("Error Message : " + e.ToString());
}
}
/// <summary>
/// Adds an account with UserId and UserPassword received from accountItem.
/// You should get these from server communication in actual account provider.
/// </summary>
/// <param name="accountItem"> Account item to add.</param>
/// <returns> The account ID of the account instance. </returns>
public int AccountAdd(AccountItem accountItem)
{
if (accountItem == null)
{
throw new ArgumentNullException(nameof(accountItem));
}
try
{
int id = -1;
// Create account instance
Account account = Account.CreateAccount();
if (account == null)
{
return(id);
}
// Add account with inputed id and password.
// In sample app, just add id as user_name and password as access_token.
// But, you should get these from server communication in actual account provider.
account.UserName = accountItem.UserName;
account.AccessToken = accountItem.UserPassword;
account.SyncState = AccountSyncState.Idle;
// Insert account DB with the new account information.
// AddAccount returns account id.
id = AccountService.AddAccount(account);
return(id);
}
catch (Exception e)
{
Console.WriteLine("Error Message : " + e.ToString());
return(-1);
}
}
/// <summary>
/// Gets AccountId from database for selected account item.
/// </summary>
/// <param name="account">Account item to find in database.</param>
/// <returns>Returns AccountId for account item. Returns -1 if
/// account with specified userId and userPass doesn't exists in database or
/// when error occurred.</returns>
public int GetAccountId(AccountItem account)
{
try
{
var accounts = AccountService.GetAccountsByUserName(account.UserName);
var foundAccount = accounts.FirstOrDefault(
a => a.AccessToken == account.UserPassword);
if (foundAccount != null)
{
return(foundAccount.AccountId);
}
else
{
return(-1);
}
}
catch (Exception e)
{
Console.WriteLine("Error Message : " + e.ToString());
return(-1);
}
}
