read fuse consensus contract

fuse-consensus-details.js

const Web3 = require('web3') // ^2.0.0-alpha.1

const CONSENSUS_ABI = [{"constant":true,"inputs":[],"name":"getLastSnapshotTakenAtBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_p","type":"uint256"}],"name":"pendingValidatorsAtPosition","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_snapshotId","type":"uint256"}],"name":"getSnapshotAddresses","outputs":[{"name":"","type":"address[]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_newAddress","type":"address"}],"name":"setProxyStorage","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_address","type":"address"},{"name":"_validator","type":"address"}],"name":"delegatedAmount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"SNAPSHOTS_PER_CYCLE","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"pendingValidatorsLength","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"newValidatorSetLength","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"DECIMALS","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isInitialized","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"currentValidatorsLength","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getMinStake","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"_p","type":"uint256"}],"name":"currentValidatorsAtPosition","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"newValidatorSet","outputs":[{"name":"","type":"address[]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"CYCLE_DURATION_BLOCKS","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getSnapshotsPerCycle","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"requiredSignatures","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isFinalized","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getCurrentCycleStartBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"currentValidators","outputs":[{"name":"","type":"address[]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getCycleDurationBlocks","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[],"name":"pendingValidators","outputs":[{"name":"","type":"address[]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getCurrentCycleEndBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_address","type":"address"}],"name":"stakeAmount","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"MIN_STAKE","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getNextSnapshotId","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getProxyStorage","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"shouldEmitInitiateChange","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_address","type":"address"}],"name":"isValidator","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_address","type":"address"}],"name":"isPendingValidator","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"newSet","type":"address[]"}],"name":"ChangeFinalized","type":"event"},{"anonymous":false,"inputs":[],"name":"ShouldEmitInitiateChange","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"parentHash","type":"bytes32"},{"indexed":false,"name":"newSet","type":"address[]"}],"name":"InitiateChange","type":"event"},{"constant":false,"inputs":[{"name":"_initialValidator","type":"address"}],"name":"initialize","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getValidators","outputs":[{"name":"","type":"address[]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"finalizeChange","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"stake","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_validator","type":"address"}],"name":"delegate","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"_validator","type":"address"},{"name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"cycle","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[],"name":"emitInitiateChange","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]
const CONSENSUS_ADDRESS = '0x3014ca10b91cb3D0AD85fEf7A3Cb95BCAc9c0f79'

const secondsToDhms = (seconds) => {
  seconds = Number(seconds)
  var d = Math.floor(seconds / (3600*24))
  var h = Math.floor(seconds % (3600*24) / 3600)
  var m = Math.floor(seconds % 3600 / 60)
  var s = Math.floor(seconds % 60)

  var dDisplay = d > 0 ? d + (d == 1 ? " day, " : " days, ") : ""
  var hDisplay = h > 0 ? h + (h == 1 ? " hour, " : " hours, ") : ""
  var mDisplay = m > 0 ? m + (m == 1 ? " minute, " : " minutes, ") : ""
  var sDisplay = s > 0 ? s + (s == 1 ? " second" : " seconds") : ""
  return dDisplay + hDisplay + mDisplay + sDisplay
}

const main = async () => {
  const web3 = new Web3(new Web3.providers.HttpProvider('https://rpc.fuse.io'))
  const consensus = new web3.eth.Contract(CONSENSUS_ABI, CONSENSUS_ADDRESS)
  const activeValidators = await consensus.methods.getValidators.call()
  const totalStaked = await web3.eth.getBalance(CONSENSUS_ADDRESS)
  const decimals = await consensus.methods.DECIMALS.call()
  const currentBlockNumber = await web3.eth.getBlockNumber()
  const currentCycleStartBlock = await consensus.methods.getCurrentCycleStartBlock.call()
  const currentCycleEndBlock = await consensus.methods.getCurrentCycleEndBlock.call()
  const cycleEndInBlocks = currentCycleEndBlock - currentBlockNumber
  const cycleEndInSeconds = cycleEndInBlocks * 5
  console.log(`number of active validators:\n\t${activeValidators.length}`)
  console.log(`active validators list:\n\t${activeValidators.join('\n\t')}`)
  console.log(`total staked:\n\t${totalStaked/decimals}`)
  console.log(`next cycle in:\n\t${secondsToDhms(cycleEndInSeconds)}`)
  console.log(`current cycle blocks:\n\t${currentCycleStartBlock}-${currentCycleEndBlock}`)
}

main()