import { CHAIN_NAMESPACES, PortalRequestMethod } from '@portal-hq/utils'
import type { IPortalApi, IPortalProvider } from '@portal-hq/utils'
import type { SendAssetParams } from '@portal-hq/utils'

import type { SendAssetResponse } from '../../../types'
import type { ChainHandler, SendOptions } from './ChainHandler'

export class EvmChainHandler implements ChainHandler {
  readonly namespace = CHAIN_NAMESPACES.EIP155

  constructor(
    private readonly api: IPortalApi,
    private readonly provider: IPortalProvider,
  ) {}

  public async send(
    params: SendAssetParams,
    chainId: string,
    options: SendOptions,
  ): Promise<SendAssetResponse | any> {
    const { to, token, amount } = params

    const transactionDetails = await this.api.buildTransaction(
      to,
      token,
      amount,
      chainId,
      options.traceId,
    )

    return this.provider.request({
      method: PortalRequestMethod.EthSendTransaction,
      params: [transactionDetails.transaction],
      chainId,
      ...(Object.keys(options).length > 0 && { options }),
    })
  }
}