import {z} from 'zod'

export type CheckoutCAAccountData = {account_number?: string | undefined, institution_code?: string | undefined, transit_number?: string | undefined};

export type CheckoutApiAccountSubtype = 'checkings' | 'savings';

export type CheckoutApiAccountType = 'depository';

export type CheckoutUSAccountData = {account_number?: string | undefined, routing_number?: string | undefined};

export type CheckoutCreateBankAccountInput = {account_data_type?: ('us' | 'ca') | undefined, ca_account_data?: CheckoutCAAccountData | undefined, custom_name?: string | undefined, institution_name?: string | undefined, receiver_name?: string | undefined, subtype?: CheckoutApiAccountSubtype | undefined, type?: CheckoutApiAccountType | undefined, us_account_data?: CheckoutUSAccountData | undefined};

export type CreateApiCheckoutPaymentMethodsBankArgs = {body: CheckoutCreateBankAccountInput};

export type CreateApiCheckoutPaymentMethodsBankOptions = {baseUrl: string, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const checkoutCreateBankAccountResponse = z.object({id: z.string().optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Create a bank account payment method from checkout token
 * 
 * POST /checkout/payment-methods/bank
 */
export const createApiCheckoutPaymentMethodsBank = async (args: CreateApiCheckoutPaymentMethodsBankArgs, options: CreateApiCheckoutPaymentMethodsBankOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BearerAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (BearerAuth !== undefined) headers.set("Authorization", BearerAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/checkout/payment-methods/bank${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(checkoutCreateBankAccountResponse, await res.json())
};