/// <summary>
/// retrieve information for the received transaction
/// </summary>
/// <returns>object[] {
/// (Transaction)tx, (byte[])sender, (byte)receiver, ulong receivedNEO, ulong receivedGAS,
/// (BigInteger)whiteListGroupNumber, (BigInteger)crowdsaleAvailableAmount, (BigInteger)groupMaximumContribution
/// (BigInteger)totalTokensPurchased, (BigInteger)neoRemainingAfterPurchase, (BigInteger)gasRemainingAfterPurchase
/// (BigInteger)totalContributionBalance
/// }
/// </returns>
public static object[] GetEthTransactionAndSaleData(ulong receivedETH, string ethAddress, byte[] neoAddress)
{
Transaction tx = (Transaction)ExecutionEngine.ScriptContainer;
byte[] sender = neoAddress;
byte[] receiver = neoAddress;
// only add funds to total received value if receiver is the recipient of the output
Runtime.Notify("GetEthTransactionData() Received ETH Deposit type", receiver);
BigInteger whiteListGroupNumber = KYC.GetWhitelistGroupNumber(sender);
BigInteger crowdsaleAvailableAmount = NEP5.CrowdsaleAvailableAmount();
BigInteger groupMaximumContribution = KYC.GetGroupMaxContribution(whiteListGroupNumber) * NEP5.factor;
BigInteger totalTokensPurchased = 0;
//ETH minimum must be 0.1 eth
if (ICOTemplate.ICOAllowsETH() && receivedETH >= ICOTemplate.EthMinimumContribution())
{
//Get the amount of tokens in exchange for contributed ETH. receivedETH is with 18 decimals so divide by 1000000000000000000.
BigInteger ethTokenValue = receivedETH * ICOTemplate.ICOEthToTokenExchangeRate() / 1000000000000000000;
// there is enough NOS left for this purchase to complete
totalTokensPurchased = ethTokenValue;
// ensure amountAvailable now reflects number of tokens purchased with ETH
}
BigInteger totalContributionBalance = BalanceOfSaleContribution(sender) + (totalTokensPurchased * NEP5.factor);
return(new object[] {
tx, // neo transaction object
sender, // who initiated the transfer
receiver, // who the assets were sent to
ethAddress, // ETH address of contributor
receivedETH, // how many neo were transferred
whiteListGroupNumber, // what whitelist group is the sender in
crowdsaleAvailableAmount, // how many tokens are left to be purchased
groupMaximumContribution, // how many tokens can members of this whitelist group purchase
totalTokensPurchased, // the total number of tokens purchased in this transaction
totalContributionBalance // the total amount of tokens sender has purchased during public sale
});
}
