// import { ChainEosV2 } from './chains/eos_2/ChainEosV2'
// import { ChainEthereumV1 } from './chains/ethereum_1/ChainEthereumV1'
// import { ChainAlgorandV1 } from './chains/algorand_1/ChainAlgorandV1'
import { Chain } from './interfaces'
import { ChainType, ChainEndpoint } from './models'
import { throwNewError } from './errors'
/**
 * Returns an instance of one of the concrete chain classes
 */
export class ChainFactory {
  // eslint-disable-next-line
  public create = (chainType: ChainType, endpoints: ChainEndpoint[], settings?: any): Chain => {
    switch (chainType) {
      case ChainType.EosV2:
        // return new ChainEosV2(endpoints, settings)
        throwNewError(`Chain type ${chainType} must be used via plugin`)
        break
      case ChainType.EthereumV1:
        // return new ChainEthereumV1(endpoints, settings)
        throwNewError(`Chain type ${chainType} must be used via plugin`)
        break
      case ChainType.AlgorandV1:
        // eturn new ChainAlgorandV1(endpoints, settings)
        throwNewError(`Chain type ${chainType} must be used via plugin`)
        break
      default:
        throwNewError(`Chain type ${chainType} is not supported`)
    }
    return null
  }
}

// Can't currently add the constructor signature to Chain interface becasue each plugin is currently different
// new(endpoints: ChainEndpoint[], settings?: any): Chain;
// Define the high level plugin interface here again to work around this.
type Plugin = {
  new (endpoints: ChainEndpoint[], settings?: any): Chain
  chainType: string
}

export function PluginChainFactory(
  plugins: Plugin[],
  chainType: ChainType,
  endpoints: ChainEndpoint[],
  settings?: any,
): Chain {
  let chain: Chain = null
  plugins.forEach(Plugin => {
    if (Plugin.chainType.includes(chainType)) {
      chain = new Plugin(endpoints, settings)
    }
  })
  if (chain == null) {
    throwNewError(`Chain type ${chainType} is not supported`)
  }
  return chain
}