poa-dapps-keys-generation/src/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
    });
  }
}