poa-dapps-keys-generation/src/utils/keysManager.js

import addressGenerator from './addressGenerator'
import helpers from './helpers'
import { constants } from './constants'

export default class KeysManager {
  async init({ web3, netId, addresses }) {
    const { KEYS_MANAGER_ADDRESS } = addresses
    console.log('Keys Manager ', KEYS_MANAGER_ADDRESS)

    const KeysManagerAbi = await helpers.getABI(constants.NETWORKS[netId].BRANCH, 'KeysManager')

    this.instance = new web3.eth.Contract(KeysManagerAbi, KEYS_MANAGER_ADDRESS)

    const networkName = constants.NETWORKS[netId].NAME.toLowerCase()
    if (networkName === 'dai-test' || networkName === 'dai') {
      this.gasPrice = web3.utils.toWei('0', 'gwei')
    } else {
      this.gasPrice = web3.utils.toWei('2', 'gwei')
    }
  }

  async isInitialKeyValid(initialKey) {
    return new Promise((resolve, reject) => {
      const methods = this.instance.methods
      let getInitialKeyStatus
      if (methods.getInitialKeyStatus) {
        getInitialKeyStatus = methods.getInitialKeyStatus
      } else {
        getInitialKeyStatus = methods.initialKeys
      }
      getInitialKeyStatus(initialKey)
        .call()
        .then(function(result) {
          resolve(result)
        })
        .catch(function(e) {
          reject(false)
        })
    })
  }

  async generateKeys() {
    return await addressGenerator()
  }

  createKeys({ mining, voting, payout, sender }) {
    return this.instance.methods.createKeys(mining, voting, payout).send({
      from: sender,
      gasPrice: this.gasPrice
    })
  }
}