const ethUtil = require('ethereumjs-util');
const sigUtil = require('@metamask/eth-sig-util');

const app = require('j7/app');
const bc = require('../blockchain');
const metaFactory = require('../metadata/factory');

async function authVerifySignature(session) {
  try {
    const netId = await bc.getNetId();
    const msgParams = {
      types: {
        EIP712Domain: [
          { name: 'name', type: 'string' },
          { name: 'version', type: 'string' },
        ],
        set: [
          { name: 'tips', type: 'string' },
          { name: 'nonce', type: 'string' },
        ]
      },
      primaryType: 'set',
      domain: {
        name: 'Auth',
        version: '1',
      },
      message: {
        tips: session.request('tips'),
        nonce: session.request('nonce')
      }
    };
    const recovered = sigUtil.recoverTypedSignature(
      {data:
       msgParams,
       signature: session.request('signature'),
       version: 'V4'});
    session.rspData(
      {
        'recovered': recovered
      });
  } catch (err) {
    session.rspErr(1, err);
  }
}

async function buyBoxVerifySignature(session) {
  try {
    const netId = await bc.getNetId();
    const msgParams = {
      types: {
        EIP712Domain: [
          { name: 'name', type: 'string' },
          { name: 'version', type: 'string' },
          { name: 'chainId', type: 'uint256' },
          { name: 'verifyingContract', type: 'address' }
        ],
        set: [
          { name: 'item', type: 'uint256' },
          { name: 'token', type: 'address' },
          { name: 'price', type: 'uint256' },
          { name: 'salt', type: 'uint256' }
        ]
      },
      primaryType: 'set',
      domain: {
        name: 'BEBoxMall',
        version: '1',
        chainId: netId,
        verifyingContract: '0xF278ff771F9E24968083B0bA54Cb42eb4B23C2d7',
      },
      message: {
        item: session.request('type'),
        token: session.request('paymentTokenAddress'),
        price: session.request('price'),
        salt: session.request('nonce')
      }
    };
    const recovered = sigUtil.recoverTypedSignature(
      {data: msgParams,
       signature: session.request('signature'),
       version: 'V4'});
    console.log(recovered);
    session.rspData(
      {
        'recovered': recovered
      });
  } catch (err) {
    console.log(err);
    session.rspErr(1, err);
  }
}

function init() {
  app.registerHandler('BcService', 'authVerifySignature', authVerifySignature);
  app.registerHandler('BcService', 'buyBoxVerifySignature', buyBoxVerifySignature);
}

exports.init = init;