// Taken from https://medium.com/walletconnect/how-to-build-a-wallet-in-react-native-with-the-web3wallet-sdk-b6f57bf02f9a

import { formatJsonRpcError, formatJsonRpcResult } from '@json-rpc-tools/utils';
import { SignClientTypes } from '@walletconnect/types';
import { getSdkError } from '@walletconnect/utils';

import { EIP155_SIGNING_METHODS } from './EIP155Lib';
import { getSignParamsMessage } from './Helpers';
import { signEthMessage } from '../sign-message';

export async function approveEIP155Request(
  requestEvent: SignClientTypes.EventArguments['session_request'],
  counterId: number,
) {
  const { params, id } = requestEvent;
  const { request } = params;
  switch (request.method) {
    case EIP155_SIGNING_METHODS.PERSONAL_SIGN:
      const message = getSignParamsMessage(request.params);
      const signedMessage = await signEthMessage(message, counterId);
      return formatJsonRpcResult(id, signedMessage);

    default:
      throw new Error(getSdkError('INVALID_METHOD').message);
  }
}

export function rejectEIP155Request(
  request: SignClientTypes.EventArguments['session_request'],
) {
  const { id } = request;

  return formatJsonRpcError(id, getSdkError('USER_REJECTED_METHODS').message);
}