Differential D8601 Diff 26187 web/cashtab/src/hooks/useBCH.js

Changeset View

Standalone View

web/cashtab/src/hooks/useBCH.js

Show First 20 Lines • Show All 214 Lines • ▼ Show 20 Lines	export default function useBCH() {
};		};

const sendToken = async (		const sendToken = async (
BCH,		BCH,
wallet,		wallet,
slpBalancesAndUtxos,		slpBalancesAndUtxos,
{ tokenId, amount, tokenReceiverAddress },		{ tokenId, amount, tokenReceiverAddress },
) => {		) => {
		// Handle error of user having no BCH
		if (slpBalancesAndUtxos.nonSlpUtxos.length === 0) {
		throw new Error(
		`You need some ${currency.ticker} to send ${currency.tokenTicker}`,
		);
		}
const largestBchUtxo = slpBalancesAndUtxos.nonSlpUtxos.reduce(		const largestBchUtxo = slpBalancesAndUtxos.nonSlpUtxos.reduce(
(previous, current) =>		(previous, current) =>
previous.satoshis > current.satoshis ? previous : current,		previous.satoshis > current.satoshis ? previous : current,
);		);
// console.log(`largestBchUtxo`, largestBchUtxo);		// console.log(`largestBchUtxo`, largestBchUtxo);
// this is big enough? might need to combine utxos		// this is big enough? might need to combine utxos
// TODO improve utxo selection		// TODO improve utxo selection
/*		/*
▲ Show 20 Lines • Show All 51 Lines • ▼ Show 20 Lines	export default function useBCH() {
console.log(		console.log(
`tokenAmountBeingSentToAddress.toString()`,		`tokenAmountBeingSentToAddress.toString()`,
tokenAmountBeingSentToAddress.toString()		tokenAmountBeingSentToAddress.toString()
);		);
*/		*/
let tokenUtxosBeingSpent = [];		let tokenUtxosBeingSpent = [];
for (let i = 0; i < tokenUtxos.length; i++) {		for (let i = 0; i < tokenUtxos.length; i++) {
finalTokenAmountSent = finalTokenAmountSent.plus(		finalTokenAmountSent = finalTokenAmountSent.plus(
new BigNumber(tokenUtxos[i].tokenQty).div(		new BigNumber(tokenUtxos[i].tokenQty),
Math.pow(10, tokenUtxos[i].decimals),
),
);		);
transactionBuilder.addInput(		transactionBuilder.addInput(
tokenUtxos[i].tx_hash,		tokenUtxos[i].tx_hash,
tokenUtxos[i].tx_pos,		tokenUtxos[i].tx_pos,
);		);
tokenUtxosBeingSpent.push(tokenUtxos[i]);		tokenUtxosBeingSpent.push(tokenUtxos[i]);
if (tokenAmountBeingSentToAddress.lte(finalTokenAmountSent)) {		if (tokenAmountBeingSentToAddress.lte(finalTokenAmountSent)) {
break;		break;
}		}
}		}

// Run a test function to mock the outputs generated by BCH.SLP.TokenType1.generateSendOpReturn below
slpDebug(
tokenUtxosBeingSpent,
tokenAmountBeingSentToAddress.toString(),
);

// Generate the OP_RETURN code.
console.log(`Debug output`);
console.log(`tokenUtxos`, tokenUtxosBeingSpent);
console.log(`sendQty`, tokenAmountBeingSentToAddress.toString());
const slpSendObj = BCH.SLP.TokenType1.generateSendOpReturn(		const slpSendObj = BCH.SLP.TokenType1.generateSendOpReturn(
tokenUtxosBeingSpent,		tokenUtxosBeingSpent,
tokenAmountBeingSentToAddress.toString(),		tokenAmountBeingSentToAddress.toString(),
);		);

const slpData = slpSendObj.script;		const slpData = slpSendObj.script;

// Add OP_RETURN as first output.		// Add OP_RETURN as first output.
▲ Show 20 Lines • Show All 68 Lines • ▼ Show 20 Lines	*/
const tx = transactionBuilder.build();		const tx = transactionBuilder.build();

// output rawhex		// output rawhex
const hex = tx.toHex();		const hex = tx.toHex();
// console.log(`Transaction raw hex: `, hex);		// console.log(`Transaction raw hex: `, hex);

// END transaction construction.		// END transaction construction.

// Broadcast transaction to the network

const txidStr = await BCH.RawTransactions.sendRawTransaction([hex]);		const txidStr = await BCH.RawTransactions.sendRawTransaction([hex]);
if (txidStr && txidStr[0]) {		if (txidStr && txidStr[0]) {
console.log(`${currency.tokenTicker} txid`, txidStr[0]);		console.log(`${currency.tokenTicker} txid`, txidStr[0]);
}		}

let link;		let link;
if (process.env.REACT_APP_NETWORK === `mainnet`) {		if (process.env.REACT_APP_NETWORK === `mainnet`) {
link = `${currency.blockExplorerUrl}/tx/${txidStr}`;		link = `${currency.blockExplorerUrl}/tx/${txidStr}`;
} else {		} else {
link = `${currency.blockExplorerUrlTestnet}/tx/${txidStr}`;		link = `${currency.blockExplorerUrlTestnet}/tx/${txidStr}`;
}		}

//console.log(`link`, link);		//console.log(`link`, link);

return link;		return link;
};		};

const slpDebug = (tokenUtxos, sendQty) => {
console.log(`slpDebug test called with`);
console.log(`tokenUtxos`, tokenUtxos);
console.log(`sendQty`, sendQty);
try {
//const tokenId = tokenUtxos[0].tokenId;
const decimals = tokenUtxos[0].decimals;

// Joey patch to do
// totalTokens must be a big number accounting for decimals
// sendQty must be the same
/* From slp-sdk

amount = new BigNumber(amount).times(10 ** tokenDecimals) // Don't forget to account for token precision


This is analagous to sendQty here
*/
const sendQtyBig = new BigNumber(sendQty).times(10 ** decimals);

// Calculate the total amount of tokens owned by the wallet.
//let totalTokens = 0;
//for (let i = 0; i < tokenUtxos.length; i++) totalTokens += tokenUtxos[i].tokenQty;

// Calculate total amount of tokens using Big Number throughout
/*
let totalTokens = new BigNumber(0);
for (let i = 0; i < tokenUtxos.length; i++) {
console.log(`tokenQty normal`, tokenUtxos[i].tokenQty);
const thisTokenQty = new BigNumber(tokenUtxos[i].tokenQty);
totalTokens.plus(thisTokenQty);
}
totalTokens.times(10 ** decimals);
*/
let totalTokens = tokenUtxos.reduce((tot, txo) => {
return tot.plus(
new BigNumber(txo.tokenQty).times(10 ** decimals),
);
}, new BigNumber(0));

console.log(`totalTokens`, totalTokens);
//test
//totalTokens = new BigNumber(totalTokens).times(10 ** decimals);

console.log(`sendQtyBig`, sendQtyBig);
const change = totalTokens.minus(sendQtyBig);
console.log(`change`, change);

//let script;
//let outputs = 1;

// The normal case, when there is token change to return to sender.
if (change > 0) {
//outputs = 2;

// Convert the send quantity to the format expected by slp-mdm.

//let baseQty = new BigNumber(sendQty).times(10 ** decimals);
// Update: you've done this earlier, so don't do it now
let baseQty = sendQtyBig.toString();
console.log(`baseQty: `, baseQty);

// Convert the change quantity to the format expected by slp-mdm.
//let baseChange = new BigNumber(change).times(10 ** decimals);
// Update: you've done this earlier, so don't do it now
let baseChange = change.toString();
console.log(`baseChange: `, baseChange);

const outputQty = new BigNumber(baseChange).plus(
new BigNumber(baseQty),
);
const inputQty = new BigNumber(totalTokens);
console.log(
`new BigNumber(baseChange)`,
new BigNumber(baseChange),
);
console.log(`new BigNumber(baseQty)`, new BigNumber(baseQty));
console.log(`outputQty:`, outputQty);
console.log(`inputQty:`, inputQty);
console.log(
`outputQty.minus(inputQty).toString():`,
outputQty.minus(inputQty).toString(),
);
console.log(
`outputQty.minus(inputQty).toString():`,
outputQty.minus(inputQty).toString() === '0',
);

const tokenOutputDelta =
outputQty.minus(inputQty).toString() !== '0';
if (tokenOutputDelta)
console.log(
'Token transaction inputs do not match outputs, cannot send transaction',
);
// Generate the OP_RETURN as a Buffer.
/*
script = slpMdm.TokenType1.send(tokenId, [
new slpMdm.BN(baseQty),
new slpMdm.BN(baseChange)
]);
*/
//

// Corner case, when there is no token change to send back.
} else {
console.log(`No change case:`);
let baseQty = sendQtyBig.toString();
console.log(`baseQty: `, baseQty);

// Check for potential burns
const noChangeOutputQty = new BigNumber(baseQty);
const noChangeInputQty = new BigNumber(totalTokens);
console.log(`noChangeOutputQty`, noChangeOutputQty);
console.log(`noChangeInputQty`, noChangeInputQty);

const tokenSingleOutputError =
noChangeOutputQty.minus(noChangeInputQty).toString() !==
'0';
if (tokenSingleOutputError)
console.log(
'Token transaction inputs do not match outputs, cannot send transaction',
);

// Generate the OP_RETURN as a Buffer.
//script = slpMdm.TokenType1.send(tokenId, [new slpMdm.BN(baseQty)]);
}
} catch (err) {
console.log(`Error in generateSendOpReturn()`);
throw err;
}
};

const sendBch = async (		const sendBch = async (
BCH,		BCH,
wallet,		wallet,
utxos,		utxos,
{ addresses, values, encodedOpReturn },		{ addresses, values, encodedOpReturn },
callbackTxId,		callbackTxId,
) => {		) => {
// Note: callbackTxId is a callback function that accepts a txid as its only parameter		// Note: callbackTxId is a callback function that accepts a txid as its only parameter
/* Debug logs
console.log(`sendBch called with`);
console.log("BCH", BCH);
console.log("wallet", wallet);
console.log("utxos", utxos);
console.log("addresses", addresses);
console.log("values", values);
console.log("encodedOpReturn", encodedOpReturn);
console.log("callbackTxid", callbackTxId);
*/
try {		try {
if (!values \|\| values.length === 0) {		if (!values \|\| values.length === 0) {
return null;		return null;
}		}

const value = values.reduce(		const value = values.reduce(
(previous, current) => new BigNumber(current).plus(previous),		(previous, current) => new BigNumber(current).plus(previous),
new BigNumber(0),		new BigNumber(0),
▲ Show 20 Lines • Show All 132 Lines • Show Last 20 Lines