public async Task <Tuple <bool, string> > AddUserRequestAsync(LoginDetails details)
{
RhodeITDB db = new RhodeITDB();
AddUserFunction addUserFunction = new AddUserFunction
{
FromAddress = details.Ethereum_Address,
Gas = Variables.gas,
Studentno_staff_no = details.User_ID
};
string receipt = "0x";
bool exists = await UserExistsRequestAndWaitForReceiptAsync(details.Ethereum_Address).ConfigureAwait(false);
if (exists)
{
db.StoreTransactionReceipt(new Models.TransactionReceipt {
Receipt = receipt, Activity = "LoggedIn"
});
}
else
{
receipt = await ContractHandler.SendRequestAsync(addUserFunction).ConfigureAwait(false);
exists = await UserExistsRequestAndWaitForReceiptAsync(details.Ethereum_Address).ConfigureAwait(false);
db.StoreTransactionReceipt(new Models.TransactionReceipt {
Receipt = receipt, Activity = "Registered"
});
db.UpdateLoginDetails(details);
}
return(new Tuple <bool, string>(exists, receipt));
}
/// <summary>
/// @dev function that allows user to login this function also adds users to the smartcontracts storage users dont not need to register university credentials will be sufficient
/// </summary>
/// <param name="studentNo">student number</param>
/// <param name="password">password</param>
/// <returns>if the login was succefull or not</returns>
public async Task RegisterStudent(LoginDetails details)
{
rhodeITDB = new RhodeITDB();
details.User_ID = details.User_ID.ToLower();
string Thash = "";
Tuple <bool, string> results = await SmartContractFunctions.AddUserRequestAsync(details).ConfigureAwait(false);
Thash = results.Item2;
details.TransactionHash = Thash;
rhodeITDB.UpdateLoginDetails(details);
}
public void Purchase_Ride_Credits()
{
RhodeITService rhodeITServices = new RhodeITService();
RhodeITDB db = new RhodeITDB();
IUserDialogs dialog = UserDialogs.Instance;
dialog.ShowLoading("Purchasing Ride Credits...");
try
{
bool result = int.TryParse(amount.Text, out int rideCredit);
if (!result)
{
throw new InvalidNumberException("Invalid");
}
try
{
if (rideCredit <= 0)
{
throw new InvalidNumberException("");
}
else
{
Details = db.GetUserDetails();
rhodeITServices.UpdateCreditRequestAsync(Details.Ethereum_Address, rideCredit).ConfigureAwait(false);
Details.RideCredits += rideCredit;
RhodesDataBase.ChargeUserRideCreditBalanceToAccount(Details).ConfigureAwait(false);
db.UpdateLoginDetails(Details);
dialog.HideLoading();
dialog.Alert(string.Format("Succesfully recharged ride credits with {0}", rideCredit), "Success", "OK");
}
}
catch (Exception e)
{
dialog.HideLoading();
PopupLayout.Dismiss();
Console.WriteLine("Error whilst purcasing credits: " + e.Message);
dialog.Alert("Something went wrong whilst purchasing credit", "Insufficient Funds", "OK");
}
}
catch (InvalidNumberException e)
{
dialog.HideLoading();
PopupLayout.Dismiss();
Console.WriteLine("Error whilst purcasing credits: " + e.Message);
dialog.Alert("Please ensure you entered a valid number e.g. 12", "Invalid Number", "OK");
}
}