import {z} from 'zod'

export type Amount = number;

export type Currency = 'EUR';

export type CreateRefundRequest = {amount: Amount, currency: Currency, description?: string | undefined};

export type CreateApiV3PaymentsPaymentIdRefundsArgs = {'payment-id': string, 'Idempotency-Key': string, body: CreateRefundRequest};

export type CreateApiV3PaymentsPaymentIdRefundsOptions = {baseUrl?: string | undefined, JWSRequestSignatureRefund?: string | undefined, fetch?: typeof fetch | undefined};

export const refundId = z.string().min(24).max(24);

export const paymentId = z.string().min(24).max(24);

export const amount = z.number().int().gt(1).lte(999999999999);

export const currency = z.literal("EUR");

export const refundDescription = z.string();

export const refundCreationDate = z.string();

export const refundCreationResponse = z.object({refundId: refundId, paymentId: paymentId, status: z.literal("PENDING"), amount: amount, currency: currency, description: refundDescription.optional(), creationDate: refundCreationDate});

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 refund for payment
 * 
 * POST /v3/payments/{payment-id}/refunds
 */
export const createApiV3PaymentsPaymentIdRefunds = async (args: CreateApiV3PaymentsPaymentIdRefundsArgs, options?: CreateApiV3PaymentsPaymentIdRefundsOptions) => {
const {baseUrl = "https://merchant.api.preprod.bancontact.net", fetch: fetchFn = fetch, JWSRequestSignatureRefund} = options ?? {}

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

if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (JWSRequestSignatureRefund !== undefined) headers.set("Signature", JWSRequestSignatureRefund)

const url = `${baseUrl.replace(/\/+$/, '')}/v3/payments/${encodeURIComponent(String(args['payment-id']))}/refunds${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(refundCreationResponse, await res.json())
};