import {z} from 'zod'

export type PaymentType = 'PAYPAL' | 'EXTERNAL';

export type DateNoTime = unknown;

export type CurrencyCode = unknown;

export type Money = {currency_code: CurrencyCode, value: string};

export type PaymentMethod = 'BANK_TRANSFER' | 'CASH' | 'CHECK' | 'CREDIT_CARD' | 'DEBIT_CARD' | 'PAYPAL' | 'WIRE_TRANSFER' | 'OTHER';

export type RefundDetail = {type?: PaymentType | undefined, refund_id?: string | undefined, refund_date?: DateNoTime | undefined, amount?: Money | undefined, method: PaymentMethod};

export type CreateApiV2InvoicingInvoicesInvoiceIdRefundsArgs = {invoice_id: string, body: RefundDetail};

export type CreateApiV2InvoicingInvoicesInvoiceIdRefundsOptions = {baseUrl?: string | undefined, Oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const refundReference = z.object({refund_id: z.string().min(1).max(22).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
};

/**
 * Record refund for invoice
 * 
 * POST /v2/invoicing/invoices/{invoice_id}/refunds
 */
export const createApiV2InvoicingInvoicesInvoiceIdRefunds = async (args: CreateApiV2InvoicingInvoicesInvoiceIdRefundsArgs, options?: CreateApiV2InvoicingInvoicesInvoiceIdRefundsOptions) => {
const {baseUrl = "https://api-m.paypal.com", fetch: fetchFn = fetch, Oauth2} = options ?? {}

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

if (Oauth2 !== undefined) headers.set('authorization', `Bearer ${Oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/invoicing/invoices/${encodeURIComponent(String(args.invoice_id))}/refunds${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(refundReference, await res.json())
};