import {z} from 'zod'

export type TransactionInfoType = {xid: string, merchant_transaction_id: string};

export type ThreeDSInitializeRequest = {data: {attributes?: ({transaction_info: TransactionInfoType, token_type?: ('pan' | 'nt') | undefined}) | undefined}};

export type CreateApiCardsCardId3dsInitializeArgs = {card_id: string, Authorization: string, 'Content-Type': 'application/vnd.api+json', body: ThreeDSInitializeRequest};

export type CreateApiCardsCardId3dsInitializeOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const transactionInfoResponseType = z.object({xid: z.string().optional(), merchant_transaction_id: z.string().optional(), transaction_id: z.string().optional()});

export const threeDSInitializeResponse = z.object({data: z.object({attributes: z.object({card_id: z.string().optional(), created_at: z.string().optional(), device_fingerprinting_html: z.string().optional(), transaction_info: transactionInfoResponseType.optional()}).optional()}).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
};

/**
 * Initialize 3DS authentication
 * 
 * POST /cards/{card_id}/3ds-initialize
 */
export const createApiCardsCardId3dsInitialize = async (args: CreateApiCardsCardId3dsInitializeArgs, options?: CreateApiCardsCardId3dsInitializeOptions) => {
const {baseUrl = "https://sandbox.vgsapi.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.Authorization != null) headers.set("Authorization", String(args.Authorization))
if (args['Content-Type'] != null) headers.set("Content-Type", String(args['Content-Type']))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/cards/${encodeURIComponent(String(args.card_id))}/3ds-initialize${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(threeDSInitializeResponse, await res.json())
};