public async Task <IActionResult> AddDerivationScheme(string storeId, DerivationSchemeViewModel vm, string cryptoCode)
{
vm.CryptoCode = cryptoCode;
var store = HttpContext.GetStoreData();
if (store == null)
{
return(NotFound());
}
var network = cryptoCode == null ? null : _ExplorerProvider.GetNetwork(cryptoCode);
if (network == null)
{
return(NotFound());
}
vm.RootKeyPath = network.GetRootKeyPath();
var wallet = _WalletProvider.GetWallet(network);
if (wallet == null)
{
return(NotFound());
}
PaymentMethodId paymentMethodId = new PaymentMethodId(network.CryptoCode, PaymentTypes.BTCLike);
var exisingStrategy = store.GetSupportedPaymentMethods(_NetworkProvider)
.Where(c => c.PaymentId == paymentMethodId)
.OfType <DerivationSchemeSettings>()
.Select(c => c.AccountDerivation.ToString())
.FirstOrDefault();
DerivationSchemeSettings strategy = null;
try
{
if (!string.IsNullOrEmpty(vm.DerivationScheme))
{
strategy = ParseDerivationStrategy(vm.DerivationScheme, null, network);
vm.DerivationScheme = strategy.ToString();
}
}
catch
{
ModelState.AddModelError(nameof(vm.DerivationScheme), "Invalid Derivation Scheme");
vm.Confirmation = false;
return(View(vm));
}
var storeBlob = store.GetStoreBlob();
var wasExcluded = storeBlob.GetExcludedPaymentMethods().Match(paymentMethodId);
var willBeExcluded = !vm.Enabled;
var showAddress = // Show addresses if:
// - If the user is testing the hint address in confirmation screen
(vm.Confirmation && !string.IsNullOrWhiteSpace(vm.HintAddress)) ||
// - The user is setting a new derivation scheme
(!vm.Confirmation && strategy != null && exisingStrategy != strategy.AccountDerivation.ToString()) ||
// - The user is clicking on continue without changing anything
(!vm.Confirmation && willBeExcluded == wasExcluded);
showAddress = showAddress && strategy != null;
if (!showAddress)
{
try
{
if (strategy != null)
{
await wallet.TrackAsync(strategy.AccountDerivation);
}
strategy.AccountKeyPath = vm.KeyPath == null ? null : KeyPath.Parse(vm.KeyPath);
store.SetSupportedPaymentMethod(strategy);
storeBlob.SetExcluded(paymentMethodId, willBeExcluded);
store.SetStoreBlob(storeBlob);
}
catch
{
ModelState.AddModelError(nameof(vm.DerivationScheme), "Invalid Derivation Scheme");
return(View(vm));
}
await _Repo.UpdateStore(store);
StatusMessage = $"Derivation scheme for {network.CryptoCode} has been modified.";
return(RedirectToAction(nameof(UpdateStore), new { storeId = storeId }));
}
else if (!string.IsNullOrEmpty(vm.HintAddress))
{
BitcoinAddress address = null;
try
{
address = BitcoinAddress.Create(vm.HintAddress, network.NBitcoinNetwork);
}
catch
{
ModelState.AddModelError(nameof(vm.HintAddress), "Invalid hint address");
return(ShowAddresses(vm, strategy));
}
try
{
strategy = ParseDerivationStrategy(vm.DerivationScheme, address.ScriptPubKey, network);
}
catch
{
ModelState.AddModelError(nameof(vm.HintAddress), "Impossible to find a match with this address");
return(ShowAddresses(vm, strategy));
}
vm.HintAddress = "";
vm.StatusMessage = "Address successfully found, please verify that the rest is correct and click on \"Confirm\"";
ModelState.Remove(nameof(vm.HintAddress));
ModelState.Remove(nameof(vm.DerivationScheme));
}
return(ShowAddresses(vm, strategy));
}