protected async Task <bool> ValidateRenewalDateAsync(DagSystem sys, TransactionBlock block, TransactionBlock previousBlock)
{
if (previousBlock == null)
{
return(true);
}
var trs = block.GetBalanceChanges(previousBlock);
foreach (var chg in trs.Changes)
{
var token = await sys.Storage.FindTokenGenesisBlockAsync(null, chg.Key);
if (token != null && token.RenewalDate < DateTime.UtcNow)
{
return(false);
}
if (token == null && block is TokenGenesisBlock gen && gen.Ticker != chg.Key)
{
return(false);
}
}
return(true);
}
protected virtual async Task <APIResultCodes> ValidateNonFungibleAsync(DagSystem sys, TransactionBlock send_or_receice_block, TransactionBlock previousBlock)
{
var transaction = send_or_receice_block.GetBalanceChanges(previousBlock);
if (transaction.Changes.Count == 1 && transaction.Changes.First().Key == LyraGlobal.OFFICIALTICKERCODE)
{
return(APIResultCodes.Success);
}
foreach (var chg in transaction.Changes)
{
var tokenCode = chg.Key;
var tokenAmount = chg.Value;
var token_block = await sys.Storage.FindTokenGenesisBlockAsync(null, tokenCode);
if (token_block == null)
{
return(APIResultCodes.TokenGenesisBlockNotFound);
}
if (!token_block.IsNonFungible)
{
return(APIResultCodes.Success);
}
//INonFungibleToken non_fungible_token = send_block.GetNonFungibleTransaction(previousBlock);
if (send_or_receice_block.NonFungibleToken == null)
{
return(APIResultCodes.MissingNonFungibleToken);
}
if (send_or_receice_block.NonFungibleToken.Denomination != tokenAmount)
{
return(APIResultCodes.InvalidNonFungibleAmount);
}
if (send_or_receice_block.NonFungibleToken.TokenCode != tokenCode)
{
return(APIResultCodes.InvalidNonFungibleTokenCode);
}
var vr = send_or_receice_block.NonFungibleToken.VerifySignature(token_block.NonFungibleKey);
if (!vr)
{
return(APIResultCodes.NonFungibleSignatureVerificationFailed);
}
if (token_block.ContractType == ContractTypes.Collectible)
{
var res = await ValidateCollectibleNFTAsync(sys, send_or_receice_block, token_block);
if (res != APIResultCodes.Success)
{
return(res);
}
}
}
return(APIResultCodes.Success);
}