import {
  Checkout,
  CheckoutErrorType,
  EIP6963ProviderDetail,
  WalletProviderRdns,
  WrappedBrowserProvider,
} from '@imtbl/checkout-sdk';
import { addProviderListenersForWidgetRoot } from './eip1193Events';
import { getProviderSlugFromRdns } from './provider';

export enum ConnectEIP6963ProviderError {
  CONNECT_ERROR = 'CONNECT_ERROR',
  USER_REJECTED_REQUEST_ERROR = 'USER_REJECTED_REQUEST_ERROR',
}

export type ConnectEIP6963ProviderResult = {
  provider: WrappedBrowserProvider;
  providerName: string;
};

export const connectEIP6963Provider = async (
  providerDetail: EIP6963ProviderDetail,
  checkout: Checkout,
  shouldRequestWalletPermissions?: boolean,
): Promise<ConnectEIP6963ProviderResult> => {
  const wrappedBrowserProvider = new WrappedBrowserProvider(providerDetail.provider);

  try {
    const requestWalletPermissions = shouldRequestWalletPermissions
      ?? providerDetail.info.rdns === WalletProviderRdns.METAMASK;
    const connectResult = await checkout.connect({
      provider: wrappedBrowserProvider,
      requestWalletPermissions,
    });

    addProviderListenersForWidgetRoot(connectResult.provider);
    return {
      provider: connectResult.provider,
      providerName: getProviderSlugFromRdns(providerDetail.info.rdns),
    };
  } catch (error: CheckoutErrorType | ConnectEIP6963ProviderError | any) {
    switch (error.type) {
      case CheckoutErrorType.USER_REJECTED_REQUEST_ERROR:
        throw new Error(
          ConnectEIP6963ProviderError.USER_REJECTED_REQUEST_ERROR,
        );
      default:
        throw new Error(ConnectEIP6963ProviderError.CONNECT_ERROR);
    }
  }
};