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web/cashtab/src/hooks/useBCH.js

Show First 20 Lines • Show All 122 Lines • ▼ Show 20 Lines const getSlpBalancesAndUtxos = async (BCH, utxos) => {
//token.hasBaton = slpUtxo.transactionType === "genesis"; //token.hasBaton = slpUtxo.transactionType === "genesis";
if (slpUtxo.utxoType && !token.hasBaton) { if (slpUtxo.utxoType && !token.hasBaton) {
token.hasBaton = slpUtxo.utxoType === 'minting-baton'; token.hasBaton = slpUtxo.utxoType === 'minting-baton';
} }
// Examples of slpUtxo // Examples of slpUtxo
/* /*
Genesis transaction: Genesis transaction:
{ {
address: "bitcoincash:qrhzv5t79e2afc3rdutcu0d3q20gl7ul3ue58whah6" address: "bitcoincash:qrhzv5t79e2afc3rdutcu0d3q20gl7ul3ue58whah6"
decimals: 9 decimals: 9
height: 617564 height: 617564
isValid: true isValid: true
satoshis: 546 satoshis: 546
tokenDocumentHash: "" tokenDocumentHash: ""
tokenDocumentUrl: "developer.bitcoin.com" tokenDocumentUrl: "developer.bitcoin.com"
tokenId: "6c41f244676ecfcbe3b4fabee2c72c2dadf8d74f8849afabc8a549157db69199" tokenId: "6c41f244676ecfcbe3b4fabee2c72c2dadf8d74f8849afabc8a549157db69199"
tokenName: "PiticoLaunch" tokenName: "PiticoLaunch"
tokenTicker: "PTCL" tokenTicker: "PTCL"
tokenType: 1 tokenType: 1
tx_hash: "6c41f244676ecfcbe3b4fabee2c72c2dadf8d74f8849afabc8a549157db69199" tx_hash: "6c41f244676ecfcbe3b4fabee2c72c2dadf8d74f8849afabc8a549157db69199"
tx_pos: 2 tx_pos: 2
txid: "6c41f244676ecfcbe3b4fabee2c72c2dadf8d74f8849afabc8a549157db69199" txid: "6c41f244676ecfcbe3b4fabee2c72c2dadf8d74f8849afabc8a549157db69199"
utxoType: "minting-baton" utxoType: "minting-baton"
value: 546 value: 546
vout: 2 vout: 2
} }
Send transaction: Send transaction:
{ {
address: "bitcoincash:qrhzv5t79e2afc3rdutcu0d3q20gl7ul3ue58whah6" address: "bitcoincash:qrhzv5t79e2afc3rdutcu0d3q20gl7ul3ue58whah6"
decimals: 9 decimals: 9
height: 655115 height: 655115
isValid: true isValid: true
satoshis: 546 satoshis: 546
tokenDocumentHash: "" tokenDocumentHash: ""
tokenDocumentUrl: "developer.bitcoin.com" tokenDocumentUrl: "developer.bitcoin.com"
tokenId: "6c41f244676ecfcbe3b4fabee2c72c2dadf8d74f8849afabc8a549157db69199" tokenId: "6c41f244676ecfcbe3b4fabee2c72c2dadf8d74f8849afabc8a549157db69199"
tokenName: "PiticoLaunch" tokenName: "PiticoLaunch"
tokenQty: 1.123456789 tokenQty: 1.123456789
tokenTicker: "PTCL" tokenTicker: "PTCL"
tokenType: 1 tokenType: 1
transactionType: "send" transactionType: "send"
tx_hash: "dea400f963bc9f51e010f88533010f8d1f82fc2bcc485ff8500c3a82b25abd9e" tx_hash: "dea400f963bc9f51e010f88533010f8d1f82fc2bcc485ff8500c3a82b25abd9e"
tx_pos: 1 tx_pos: 1
txid: "dea400f963bc9f51e010f88533010f8d1f82fc2bcc485ff8500c3a82b25abd9e" txid: "dea400f963bc9f51e010f88533010f8d1f82fc2bcc485ff8500c3a82b25abd9e"
utxoType: "token" utxoType: "token"
value: 546 value: 546
vout: 1 vout: 1
} }
*/ */
} else { } else {
token = {}; token = {};
token.info = slpUtxo; token.info = slpUtxo;
token.tokenId = slpUtxo.tokenId; token.tokenId = slpUtxo.tokenId;
if (slpUtxo.tokenQty) { if (slpUtxo.tokenQty) {
token.balance = new BigNumber(slpUtxo.tokenQty); token.balance = new BigNumber(slpUtxo.tokenQty);
} else { } else {
token.balance = new BigNumber(0); token.balance = new BigNumber(0);
Show All 32 Linesexport 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);
// this is big enough? might need to combine utxos
// TODO improve utxo selection
/*
{
address: "bitcoincash:qrcl220pxeec78vnchwyh6fsdyf60uv9tcynw3u2ev"
height: 0
isValid: false
satoshis: 1510
tx_hash: "faef4d8bf56353702e29c22f2aace970ddbac617144456d509e23e1192b320a8"
tx_pos: 0
txid: "faef4d8bf56353702e29c22f2aace970ddbac617144456d509e23e1192b320a8"
value: 1510
vout: 0
wif: "removed for git potential"
}
*/
const bchECPair = BCH.ECPair.fromWIF(largestBchUtxo.wif); const bchECPair = BCH.ECPair.fromWIF(largestBchUtxo.wif);
const tokenUtxos = slpBalancesAndUtxos.slpUtxos.filter( const tokenUtxos = slpBalancesAndUtxos.slpUtxos.filter(
(utxo, index) => { (utxo, index) => {
if ( if (
utxo && // UTXO is associated with a token. utxo && // UTXO is associated with a token.
utxo.tokenId === tokenId && // UTXO matches the token ID. utxo.tokenId === tokenId && // UTXO matches the token ID.
utxo.utxoType === 'token' // UTXO is not a minting baton. utxo.utxoType === 'token' // UTXO is not a minting baton.
) { ) {
Show All 20 Lines ) => {
const originalAmount = largestBchUtxo.value; const originalAmount = largestBchUtxo.value;
transactionBuilder.addInput( transactionBuilder.addInput(
largestBchUtxo.tx_hash, largestBchUtxo.tx_hash,
largestBchUtxo.tx_pos, largestBchUtxo.tx_pos,
); );
let finalTokenAmountSent = new BigNumber(0); let finalTokenAmountSent = new BigNumber(0);
let tokenAmountBeingSentToAddress = new BigNumber(amount); let tokenAmountBeingSentToAddress = new BigNumber(amount);
/*
console.log(`tokenAmountBeingSentToAddress`, tokenAmountBeingSentToAddress);
console.log(
`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