import {z} from 'zod'

export type CreateApiTransactionsRefundCashArgs = {Authorization: unknown, Accept: string, 'Content-Type': string, body: {ref_number: string, refund_amount: string, merchant_id: string, remote_id?: string | undefined, client_id?: string | undefined}};

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

export const amount = z.string();

export const authAmount = z.string();

export const gatewayAuthCode = z.string();

export const cardType = z.string();

export const createdAt = z.string();

export const gatewayIdentifier = z.enum(["usaepay", "payment_fusion"]);

export const gatewayReferenceNumber = z.string();

export const gatewayResponseMessage = z.string();

export const gatewayResultCode = z.string();

export const gatewayResultText = z.string();

export const merchantId = z.string();

export const mid = z.string();

export const remoteId = z.string();

export const terminalId = z.string();

export const tipAmount = z.string();

export const transactionStatus = z.string();

export const version = z.string();

export const createApiTransactionsRefundCashResponse = z.object({amount: amount.optional(), auth_amount: authAmount.optional(), gateway_auth_code: gatewayAuthCode.optional(), card_type: cardType.optional(), created_at: createdAt.optional(), gateway_identifier: gatewayIdentifier.optional(), gateway_reference_number: gatewayReferenceNumber.optional(), gateway_response_message: gatewayResponseMessage.optional(), gateway_result_code: gatewayResultCode.optional(), gateway_result_text: gatewayResultText.optional(), merchant_id: merchantId.optional(), mid: mid.optional(), remote_id: remoteId.optional(), tid: terminalId.optional(), tip_amount: tipAmount.optional(), transaction_status: transactionStatus.optional(), v: version.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
};

/**
 * Refund a transaction
 * 
 * POST /transactions/refund/cash
 */
export const createApiTransactionsRefundCash = async (args: CreateApiTransactionsRefundCashArgs, options?: CreateApiTransactionsRefundCashOptions) => {
const {baseUrl = "https://tb.paymentfusion.com", fetch: fetchFn = fetch} = options ?? {}

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

if (args.Authorization != null) headers.set("Authorization", String(args.Authorization))
if (args.Accept != null) headers.set("Accept", String(args.Accept))
if (args['Content-Type'] != null) headers.set("Content-Type", String(args['Content-Type']))

const url = `${baseUrl.replace(/\/+$/, '')}/transactions/refund/cash${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: new URLSearchParams(Object.entries(args.body).flatMap(([key, value]) => (value == null ? [] : [[key, String(value)]])))})

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

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