butterjs-sdk/src/libs/utils/mosUtils.ts

Butter Network SDK

import { IMapOmnichainService } from '../interfaces/IMapOmnichainService';
import {
  ChainId,
  ID_TO_CHAIN_ID,
  IS_EVM,
  IS_MAP,
  IS_NEAR,
} from '../../constants/chains';
import { RelayOmnichainService } from '../mos/RelayOmnichainService';
import { MOS_CONTRACT_ADDRESS_SET } from '../../constants/addresses';
import { Signer } from 'ethers';
import { BridgeOptions, NearNetworkConfig } from '../../types/requestTypes';
import MOS_EVM_METADATA from '../../abis/MAPOmnichainService.json';
import MOS_MAP_METADATA from '../../abis/MAPOmnichainServiceRelay.json';
import { EVMOmnichainService } from '../mos/EVMOmnichainService';
import { NearOmnichainService } from '../mos/NearOmnichainService';

export function createMOSInstance(
  chainId: string,
  options: BridgeOptions
): IMapOmnichainService {
  if (IS_MAP(chainId)) {
    if (options.signerOrProvider == undefined) {
      throw new Error('signer is not provided for MAP chain');
    }
    return new RelayOmnichainService(
      MOS_CONTRACT_ADDRESS_SET[ID_TO_CHAIN_ID(chainId)],
      MOS_MAP_METADATA.abi,
      options.signerOrProvider
    );
  } else if (IS_EVM(chainId)) {
    if (options.signerOrProvider == undefined) {
      throw new Error(`signer is not provided for chain: ${chainId}`);
    }
    return new EVMOmnichainService(
      MOS_CONTRACT_ADDRESS_SET[ID_TO_CHAIN_ID(chainId)],
      MOS_EVM_METADATA.abi,
      options.signerOrProvider
    );
  } else if (IS_NEAR(chainId)) {
    if (options.nearProvider == undefined) {
      throw new Error('near config is not provided');
    }
    return new NearOmnichainService(options.nearProvider);
  } else throw new Error(`chainId: ${chainId} is not supported yet`);
}