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use process tx in bitcoin #71

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use process tx in bitcoin #71

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35 changes: 35 additions & 0 deletions contracts/btfd/QpErc20Token.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -402,6 +402,41 @@ contract QpErc20Token is Initializable, ContextUpgradeable, TokenReceivableUpgra
emit TransactionProcessed(miner, blocknumber, txid, timestamp);
}

function processTx(
bytes32 txid) public {

(uint64 block,
uint64 timestamp,
BtcLib.TransferItem[] memory inputs,
BtcLib.TransferItem[] memory outputs,
bytes memory encodedCall) = // includes targetNetwork, beneficiary, targetContract, methodCall, fee
BtcLib.retrieveTx(blocknumber, txid);

QpErc20Storage storage $ = _getQPERC20Storage();
if ($.processedTxs[txid] != 0) revert TxAlreadyProcessed();
inputs = preProcessValues(inputs);
values = preProcessValues(values);

if (froms.length == 0) {
for (uint i = 0; i < tos.length; i++) {
// this is a mint
_mintBtc(tos[i], values[i]);
}
} else {
uint sum_inputs;
for (uint i = 0; i < froms.length; i++) {
// this is a transfer to the contract
_transferBtc(froms[i], address(this), inputs[i]);
sum_inputs += inputs[i];
}
processMultiTransferOutputs(txid, tos, values, sum_inputs, remoteCall);
}

address miner = msg.sender;
$.processedTxs[txid] = blocknumber;
emit TransactionProcessed(miner, blocknumber, txid, timestamp);
}

function processMultiTransferOutputs(
bytes32 txid,
address[] memory tos,
Expand Down