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Differential D11039 Diff 32340 web/cashtab/src/utils/cashMethods.js

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web/cashtab/src/utils/cashMethods.js

Show First 20 Lines • Show All 481 Lines • ▼ Show 20 Lines if (
!wallet.Path145.publicKey || !wallet.Path145.publicKey ||
!wallet.Path245.publicKey !wallet.Path245.publicKey
) { ) {
return true; return true;
} }
return false; return false;
}; };
export const isExcludedUtxo = (utxo, utxoArray) => {
/*
utxo is a single utxo of model
{
height: 724992
tx_hash: "8d4bdedb7c4443412e0c2f316a330863aef54d9ba73560ca60cca6408527b247"
tx_pos: 0
value: 10200
}
utxoArray is an array of utxos
*/
let isExcludedUtxo = true;
const { tx_hash, tx_pos, value } = utxo;
for (let i = 0; i < utxoArray.length; i += 1) {
const thisUtxo = utxoArray[i];
// NOTE
// You can't match height, as this changes from 0 to blockheight after confirmation
//const thisUtxoHeight = thisUtxo.height;
const thisUtxoTxid = thisUtxo.tx_hash;
const thisUtxoTxPos = thisUtxo.tx_pos;
const thisUtxoValue = thisUtxo.value;
// If you find a utxo such that each object key is identical
if (
tx_hash === thisUtxoTxid &&
tx_pos === thisUtxoTxPos &&
value === thisUtxoValue
) {
// Then this utxo is not excluded from the array
isExcludedUtxo = false;
}
}
return isExcludedUtxo;
};
export const whichUtxosWereAdded = (previousUtxos, currentUtxos) => {
let utxosAddedFlag = false;
const utxosAdded = [];
// Iterate over currentUtxos
// For each currentUtxo -- does it exist in previousUtxos?
// If no, it's added
// Note that the inputs are arrays of arrays, model
/*
previousUtxos = [{address: 'string', utxos: []}, ...]
*/
// Iterate over the currentUtxos array of {address: 'string', utxos: []} objects
for (let i = 0; i < currentUtxos.length; i += 1) {
// Take the first object
const thisCurrentUtxoObject = currentUtxos[i];
const thisCurrentUtxoObjectAddress = thisCurrentUtxoObject.address;
const thisCurrentUtxoObjectUtxos = thisCurrentUtxoObject.utxos;
// Iterate over the previousUtxos array of {address: 'string', utxos: []} objects
for (let j = 0; j < previousUtxos.length; j += 1) {
const thisPreviousUtxoObject = previousUtxos[j];
const thisPreviousUtxoObjectAddress =
thisPreviousUtxoObject.address;
// When you find the utxos object at the same address
if (
thisCurrentUtxoObjectAddress === thisPreviousUtxoObjectAddress
) {
// Create a utxosAddedObject with the address
const utxosAddedObject = {
address: thisCurrentUtxoObjectAddress,
utxos: [],
};
utxosAdded.push(utxosAddedObject);
// Grab the previousUtxoObject utxos array. thisCurrentUtxoObjectUtxos has changed compared to thisPreviousUtxoObjectUtxos
const thisPreviousUtxoObjectUtxos =
thisPreviousUtxoObject.utxos;
// To see if any utxos exist in thisCurrentUtxoObjectUtxos that do not exist in thisPreviousUtxoObjectUtxos
// iterate over thisPreviousUtxoObjectUtxos for each utxo in thisCurrentUtxoObjectUtxos
for (let k = 0; k < thisCurrentUtxoObjectUtxos.length; k += 1) {
const thisCurrentUtxo = thisCurrentUtxoObjectUtxos[k];
if (
isExcludedUtxo(
thisCurrentUtxo,
thisPreviousUtxoObjectUtxos,
)
) {
// If thisCurrentUtxo was not in the corresponding previous utxos
// Then it was added
//utxosAdded.push(utxosAddedObject);
utxosAdded[j].utxos.push(thisCurrentUtxo);
utxosAddedFlag = true;
}
}
}
}
}
// If utxos were added, return them
if (utxosAddedFlag) {
return utxosAdded;
}
// Else return false
return utxosAddedFlag;
};
export const whichUtxosWereConsumed = (previousUtxos, currentUtxos) => {
let utxosConsumedFlag = false;
const utxosConsumed = [];
// Iterate over previousUtxos
// For each previousUtxo -- does it exist in currentUtxos?
// If no, it's consumed
// Note that the inputs are arrays of arrays, model
/*
previousUtxos = [{address: 'string', utxos: []}, ...]
*/
// Iterate over the previousUtxos array of {address: 'string', utxos: []} objects
for (let i = 0; i < previousUtxos.length; i += 1) {
// Take the first object
const thisPreviousUtxoObject = previousUtxos[i];
const thisPreviousUtxoObjectAddress = thisPreviousUtxoObject.address;
const thisPreviousUtxoObjectUtxos = thisPreviousUtxoObject.utxos;
// Iterate over the currentUtxos array of {address: 'string', utxos: []} objects
for (let j = 0; j < currentUtxos.length; j += 1) {
const thisCurrentUtxoObject = currentUtxos[j];
const thisCurrentUtxoObjectAddress = thisCurrentUtxoObject.address;
// When you find the utxos object at the same address
if (
thisCurrentUtxoObjectAddress === thisPreviousUtxoObjectAddress
) {
// Create a utxosConsumedObject with the address
const utxosConsumedObject = {
address: thisCurrentUtxoObjectAddress,
utxos: [],
};
utxosConsumed.push(utxosConsumedObject);
// Grab the currentUtxoObject utxos array. thisCurrentUtxoObjectUtxos has changed compared to thisPreviousUtxoObjectUtxos
const thisCurrentUtxoObjectUtxos = thisCurrentUtxoObject.utxos;
// To see if any utxos exist in thisPreviousUtxoObjectUtxos that do not exist in thisCurrentUtxoObjectUtxos
// iterate over thisCurrentUtxoObjectUtxos for each utxo in thisPreviousUtxoObjectUtxos
for (
let k = 0;
k < thisPreviousUtxoObjectUtxos.length;
k += 1
) {
const thisPreviousUtxo = thisPreviousUtxoObjectUtxos[k];
// If thisPreviousUtxo was not in the corresponding current utxos
if (
isExcludedUtxo(
thisPreviousUtxo,
thisCurrentUtxoObjectUtxos,
)
) {
// Then it was consumed
utxosConsumed[j].utxos.push(thisPreviousUtxo);
utxosConsumedFlag = true;
}
}
}
}
}
// If utxos were consumed, return them
if (utxosConsumedFlag) {
return utxosConsumed;
}
// Else return false
return utxosConsumedFlag;
};
export const removeConsumedUtxos = (consumedUtxos, hydratedUtxoDetails) => {
let hydratedUtxoDetailsWithConsumedUtxosRemoved = hydratedUtxoDetails;
const slpUtxosArray = hydratedUtxoDetails.slpUtxos;
// Iterate over consumedUtxos
// Every utxo in consumedUtxos must be removed from hydratedUtxoDetails
for (let i = 0; i < consumedUtxos.length; i += 1) {
const thisConsumedUtxoObject = consumedUtxos[i]; // {address: 'string', utxos: [{},{},...{}]}
const thisConsumedUtxoObjectAddr = thisConsumedUtxoObject.address;
const thisConsumedUtxoObjectUtxoArray = thisConsumedUtxoObject.utxos;
for (let j = 0; j < thisConsumedUtxoObjectUtxoArray.length; j += 1) {
const thisConsumedUtxo = thisConsumedUtxoObjectUtxoArray[j];
// Iterate through slpUtxosArray to find thisConsumedUtxo
slpUtxosArrayLoop: for (
let k = 0;
k < slpUtxosArray.length;
k += 1
) {
const thisSlpUtxosArrayUtxoObject = slpUtxosArray[k]; // {address: 'string', utxos: [{},{},...{}]}
const thisSlpUtxosArrayUtxoObjectAddr =
thisSlpUtxosArrayUtxoObject.address;
// If this address matches the address of the consumed utxo, check for a consumedUtxo match
// Note, slpUtxos may have many utxo objects with the same address, need to check them all until you find and remove this consumed utxo
if (
thisConsumedUtxoObjectAddr ===
thisSlpUtxosArrayUtxoObjectAddr
) {
const thisSlpUtxosArrayUtxoObjectUtxoArray =
thisSlpUtxosArrayUtxoObject.utxos;
// Iterate to find it and remove it
for (
let m = 0;
m < thisSlpUtxosArrayUtxoObjectUtxoArray.length;
m += 1
) {
const thisHydratedUtxo =
thisSlpUtxosArrayUtxoObjectUtxoArray[m];
if (
thisConsumedUtxo.tx_hash ===
thisHydratedUtxo.tx_hash &&
thisConsumedUtxo.tx_pos ===
thisHydratedUtxo.tx_pos &&
thisConsumedUtxo.value === thisHydratedUtxo.value
) {
// remove it
hydratedUtxoDetailsWithConsumedUtxosRemoved.slpUtxos[
k
].utxos.splice(m, 1);
// go to the next consumedUtxo
break slpUtxosArrayLoop;
}
}
}
}
}
}
return hydratedUtxoDetailsWithConsumedUtxosRemoved;
};
export const addNewHydratedUtxos = (
addedHydratedUtxos,
hydratedUtxoDetails,
) => {
const theseAdditionalHydratedUtxos = addedHydratedUtxos.slpUtxos;
for (let i = 0; i < theseAdditionalHydratedUtxos.length; i += 1) {
const thisHydratedUtxoObj = theseAdditionalHydratedUtxos[i];
hydratedUtxoDetails.slpUtxos.push(thisHydratedUtxoObj);
}
return hydratedUtxoDetails;
// Add hydrateUtxos(addedUtxos) to hydratedUtxoDetails
/*
e.g. add this
{
"slpUtxos":
[
{
"utxos": [
{
"height": 725886,
"tx_hash": "29985c01444bf80ade764e5d40d7ec2c12317e03301243170139c75f20c51f78",
"tx_pos": 0,
"value": 3300,
"txid": "29985c01444bf80ade764e5d40d7ec2c12317e03301243170139c75f20c51f78",
"vout": 0,
"isValid": false
}
],
"address": "bitcoincash:qz2708636snqhsxu8wnlka78h6fdp77ar5ulhz04hr"
}
]
}
to this
{
"slpUtxos":
[
{
"utxos": [
{
"height": 725886,
"tx_hash": "29985c01444bf80ade764e5d40d7ec2c12317e03301243170139c75f20c51f78",
"tx_pos": 0,
"value": 3300,
"txid": "29985c01444bf80ade764e5d40d7ec2c12317e03301243170139c75f20c51f78",
"vout": 0,
"isValid": false
}
... up to 20
],
"address": "bitcoincash:qz2708636snqhsxu8wnlka78h6fdp77ar5ulhz04hr"
},
{
"utxos": [
{
"height": 725886,
"tx_hash": "29985c01444bf80ade764e5d40d7ec2c12317e03301243170139c75f20c51f78",
"tx_pos": 0,
"value": 3300,
"txid": "29985c01444bf80ade764e5d40d7ec2c12317e03301243170139c75f20c51f78",
"vout": 0,
"isValid": false
}
... up to 20
],
"address": "bitcoincash:qz2708636snqhsxu8wnlka78h6fdp77ar5ulhz04hr"
}
,
... a bunch of these in batches of 20
]
}
*/
};
export const getUtxoCount = utxos => {
// return how many utxos
/*
Both utxos and hydratedUtxoDetails.slpUtxos are build like so
[
{
address: 'string',
utxos: [{}, {}, {}...{}]
},
{
address: 'string',
utxos: [{}, {}, {}...{}]
},
{
address: 'string',
utxos: [{}, {}, {}...{}]
},
]
We want a function that quickly determines how many utxos are here
*/
let utxoCount = 0;
for (let i = 0; i < utxos.length; i += 1) {
const thisUtxoArrLength = utxos[i].utxos.length;
utxoCount += thisUtxoArrLength;
}
return utxoCount;
};
export const areAllUtxosIncludedInIncrementallyHydratedUtxos = (
utxos,
incrementallyHydratedUtxos,
) => {
let incrementallyHydratedUtxosIncludesAllUtxosInLatestUtxoApiFetch = false;
// check
const { slpUtxos } = incrementallyHydratedUtxos;
// Iterate over utxos array
for (let i = 0; i < utxos.length; i += 1) {
const thisUtxoObject = utxos[i];
const thisUtxoObjectAddr = thisUtxoObject.address;
const thisUtxoObjectUtxos = thisUtxoObject.utxos;
let utxoFound;
for (let j = 0; j < thisUtxoObjectUtxos.length; j += 1) {
const thisUtxo = thisUtxoObjectUtxos[j];
utxoFound = false;
// Now iterate over slpUtxos to find it
slpUtxosLoop: for (let k = 0; k < slpUtxos.length; k += 1) {
const thisSlpUtxosObject = slpUtxos[k];
const thisSlpUtxosObjectAddr = thisSlpUtxosObject.address;
if (thisUtxoObjectAddr === thisSlpUtxosObjectAddr) {
const thisSlpUtxosObjectUtxos = thisSlpUtxosObject.utxos;
for (
let m = 0;
m < thisSlpUtxosObjectUtxos.length;
m += 1
) {
const thisSlpUtxo = thisSlpUtxosObjectUtxos[m];
if (
thisUtxo.tx_hash === thisSlpUtxo.tx_hash &&
thisUtxo.tx_pos === thisSlpUtxo.tx_pos &&
thisUtxo.value === thisSlpUtxo.value
) {
utxoFound = true;
// goto next utxo
break slpUtxosLoop;
}
}
}
if (k === slpUtxos.length - 1 && !utxoFound) {
// return false
return incrementallyHydratedUtxosIncludesAllUtxosInLatestUtxoApiFetch;
}
}
}
}
// It's possible that hydratedUtxoDetails includes every utxo from the utxos array, but for some reason also includes additional utxos
const utxosInUtxos = getUtxoCount(utxos);
const utxosInIncrementallyHydratedUtxos = getUtxoCount(slpUtxos);
if (utxosInUtxos !== utxosInIncrementallyHydratedUtxos) {
return incrementallyHydratedUtxosIncludesAllUtxosInLatestUtxoApiFetch;
}
// If you make it here, good to go
incrementallyHydratedUtxosIncludesAllUtxosInLatestUtxoApiFetch = true;
return incrementallyHydratedUtxosIncludesAllUtxosInLatestUtxoApiFetch;
};