public static TransactionResultTypes IsJoinValid(CoreAccount coreAccount, ServiceAccount chainAccount, JoinServiceTransaction transaction)
{
if (coreAccount == null)
{
return(TransactionResultTypes.InvalidTransaction);
}
if (transaction == null)
{
return(TransactionResultTypes.InvalidTransaction);
}
if (!transaction.IsSignatureValid(coreAccount.AccountKey))
{
return(TransactionResultTypes.InvalidSignature);
}
var chainKey = transaction.AccountKey;
if (chainKey == null && chainAccount != null)
{
return(TransactionResultTypes.AlreadyJoined);
}
if (chainKey != null && chainAccount != null)
{
if (chainAccount.ContainsAccountKeyKey(chainKey))
{
return(TransactionResultTypes.AlreadyJoined);
}
if (chainAccount.HasAccountKeyIndex(chainKey.KeyIndex))
{
return(TransactionResultTypes.InvalidServiceAccountKey);
}
if (chainKey.KeyIndex != chainAccount.AccountKeyCount)
{
return(TransactionResultTypes.InvalidServiceAccountKey);
}
}
return(TransactionResultTypes.Ok);
}