import {z} from 'zod'

export type CardDetailsRequest = {number: string, expiry_month: number, expiry_year: number};

export type Instrument = {id: string};

export type AccountUpdaterRequest = {source_options?: ({card?: CardDetailsRequest | undefined, instrument?: Instrument | undefined}) | undefined};

export type CreateApiAccountUpdaterCardsArgs = {body: AccountUpdaterRequest};

export type CreateApiAccountUpdaterCardsOptions = {baseUrl: string, OAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const cardDetailsResponse = z.object({encrypted_card_number: z.string().optional(), bin: z.string().optional(), last4: z.string().optional(), expiry_month: z.number().int().gte(1).lte(12), expiry_year: z.number().int(), fingerprint: z.string().optional()});

export const accountUpdaterResponse = z.object({account_update_status: z.enum(["CARD_UPDATED", "CARD_EXPIRY_UPDATED", "CARD_CLOSED", "UPDATE_FAILED"]), account_update_failure_code: z.enum(["CARDHOLDER_OPT_OUT", "UP_TO_DATE", "NON_PARTICIPATING_BIN", "UNKNOWN"]).optional(), card: cardDetailsResponse.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
};

/**
 * Get updated card credentials
 * 
 * POST /account-updater/cards
 */
export const createApiAccountUpdaterCards = async (args: CreateApiAccountUpdaterCardsArgs, options: CreateApiAccountUpdaterCardsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth} = options ?? {}

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

if (OAuth !== undefined) headers.set('authorization', `Bearer ${OAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/account-updater/cards${query.size > 0 ? `?${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(accountUpdaterResponse, await res.json())
};