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46 lines
1.2 KiB
46 lines
1.2 KiB
const BN = require('ethereumjs-util').BN
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const EthQuery = require('ethjs-query')
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const normalize = require('eth-sig-util').normalize
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class PendingBalanceCalculator {
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constructor ({ getBalance, getPendingTransactions }) {
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this.getPendingTransactions = getPendingTransactions
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this.getNetworkBalance = getBalance
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}
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async getBalance() {
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console.log('getting balance')
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const results = await Promise.all([
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this.getNetworkBalance(),
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this.getPendingTransactions(),
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])
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console.dir(results)
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const balance = results[0]
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const pending = results[1]
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console.dir({ balance, pending })
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console.dir(pending)
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const pendingValue = pending.reduce(function (total, tx) {
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return total.add(this.valueFor(tx))
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}, new BN(0))
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const balanceBn = new BN(normalize(balance))
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console.log(`subtracting ${pendingValue.toString()} from ${balanceBn.toString()}`)
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return `0x${ balanceBn.sub(pendingValue).toString(16) }`
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}
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valueFor (tx) {
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const txValue = tx.txParams.value
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const normalized = normalize(txValue).substring(2)
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console.log({ txValue, normalized })
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const value = new BN(normalize(txValue).substring(2), 16)
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return value
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}
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}
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module.exports = PendingBalanceCalculator
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