import { FaceError, FaceErrorCode, Network } from '@haechi-labs/face-types';
import { getChainId, getNetworkByChainId, isEthlikeNetwork } from '@haechi-labs/shared';
import { ethers } from 'ethers';

export function getValidNetwork(network: Network | number | string): Network {
  const hexRegex = /^0x[0-9A-Fa-f]*$/;
  if (typeof network === 'string' && hexRegex.test(network)) {
    const chainId = parseInt(network, 16);

    try {
      return getNetworkByChainId(chainId);
    } catch (err) {
      throw new FaceError({
        message: `Invalid chainId: ${chainId}`,
        code: FaceErrorCode.UNSUPPORTED_CHAIN,
      });
    }
  }

  if (typeof network === 'number') {
    try {
      return getNetworkByChainId(network);
    } catch (err) {
      throw new FaceError({
        message: `Invalid chainId: ${network}`,
        code: FaceErrorCode.UNSUPPORTED_CHAIN,
      });
    }
  }

  if (Object.values(Network).includes(network as Network)) {
    return network as Network;
  }

  throw new FaceError({
    message: `Invalid network parameter: ${network}`,
    code: FaceErrorCode.UNSUPPORTED_CHAIN,
  });
}

export const getEthlikeChainIdFromNetwork = (network: Network) => {
  return isEthlikeNetwork(network) ? ethers.utils.hexlify(getChainId(network)) : 0;
};