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const btc = config.liquid.btcasset;
const lcad = config.liquid.cadasset;
const { Transaction } = require("@asoltys/liquidjs-lib");
const decrementAccount = require('./util/decrementacc');
sendLiquid = async ({ asset, amount, user, address, memo, tx, limit }) => {
l.info("sending liquid", amount, address);
if (!tx) {
({ tx } = await liquidTx({
address,
asset,
amount,
feeRate: 100,
replaceable: false,
user
}));
}
const isChange = async address =>
(await lq.getAddressInfo(address)).ismine &&
!Object.keys(addresses).includes(address);
let totals = {};
let change = {};
let fee = 0;
let { vout } = await lq.decodeRawTransaction(tx.hex);
for (let i = 0; i < vout.length; i++) {
let {
asset,
value,
scriptPubKey: { type, addresses }
} = vout[i];
if (type === "fee") fee = toSats(value);
else {
if (!totals[asset]) totals[asset] = change[asset] = 0;
totals[asset] += toSats(value);
if (addresses) {
if (await isChange(addresses[0])) {
change[asset] += toSats(value);
}
}
}
}
const assets = Object.keys(totals);
const payments = [];
let main, signed;
await db.transaction(async transaction => {
for (let i = 0; i < assets.length; i++) {
let asset = assets[i];
let amount = totals[asset];
if (change[asset]) amount -= change[asset];
const payment = await decrementAccount(user, transaction, limit, fee, assets, amount, address, memo, asset);
if(payment) {
payments.push(payment);
}
}
signed = await lq.signRawTransactionWithWallet(
await lq.blindRawTransaction(tx.hex)
);
let txid = Transaction.fromHex(signed.hex).getId();
for (let i = 0; i < assets.length; i++) {
p = payments[i];
if (p) {
let { account } = p;
p.hash = txid;
p = await db.Payment.create(p, { transaction });
if (account.ticker !== "BTC" || !main) {
main = p.get({ plain: true });
main.account = account.get({ plain: true });
}
}
}
emit(user.username, "account", main.account);
emit(user.username, "payment", main);
});
if (config.liquid.walletpass)
await lq.walletPassphrase(config.liquid.walletpass, 300);
let txid = await lq.sendRawTransaction(signed.hex);
l.info("sent liquid tx", txid, address);
return main;
};
module.exports = ah(async (req, res) => {
let { user } = req;
try {
res.send(await sendLiquid({ ...req.body, user }));
} catch (e) {
l.error("problem sending liquid", user.username, e.message);
return res.status(500).send(e);
}
});
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