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

import Web3 from "web3";
import addressGenerator from "./addressGenerator";
import helpers from "./helpers";
import { constants } from "./constants";

export default class KeysManager {
  async init({ web3, netId, addresses }) {
    this.web3_10 = new Web3(web3.currentProvider);
    const { KEYS_MANAGER_ADDRESS } = addresses;
    console.log("Keys Manager ", KEYS_MANAGER_ADDRESS);
    const branch = helpers.getBranch(netId);

    const KeysManagerAbi = await helpers.getABI(branch, "KeysManager");

    this.keysInstance = new this.web3_10.eth.Contract(
      KeysManagerAbi,
      KEYS_MANAGER_ADDRESS
    );
    this.netId = netId;
  }

  async isInitialKeyValid(initialKey) {
    return new Promise((resolve, reject) => {
      const methods = this.keysInstance.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 }) {
    let gasPrice = "2";
    if (
      this.netId === constants.NETID_DAI_TEST ||
      this.netId === constants.NETID_DAI
    ) {
      gasPrice = "0";
    }
    return this.keysInstance.methods.createKeys(mining, voting, payout).send({
      from: sender,
      gasPrice: this.web3_10.utils.toWei(gasPrice, "gwei")
    });
  }
}