import createApiHandler, {
  BigcommerceApiHandler,
  BigcommerceHandler,
} from '../utils/create-api-handler'
import isAllowedMethod from '../utils/is-allowed-method'
import { BigcommerceApiError } from '../utils/errors'
import getLoggedInCustomer, {
  Customer,
} from './handlers/get-logged-in-customer'

export type { Customer }

export type CustomerData = {
  customer: Customer
}

export type CustomersHandlers = {
  getLoggedInCustomer: BigcommerceHandler<CustomerData>
}

const METHODS = ['GET']

const customersApi: BigcommerceApiHandler<
  CustomerData,
  CustomersHandlers
> = async (req, res, config, handlers) => {
  if (!isAllowedMethod(req, res, METHODS)) return

  try {
    const body = null
    return await handlers['getLoggedInCustomer']({ req, res, config, body })
  } catch (error) {
    console.error(error)

    const message =
      error instanceof BigcommerceApiError
        ? 'An unexpected error ocurred with the Bigcommerce API'
        : 'An unexpected error ocurred'

    res.status(500).json({ data: null, errors: [{ message }] })
  }
}

const handlers = { getLoggedInCustomer }

export default createApiHandler(customersApi, handlers, {})