import {z} from 'zod'

export type GetApiPaymentsTxnIdTypeTxnIdArgs = {txnId: string};

export type GetApiPaymentsTxnIdTypeTxnIdOptions = {baseUrl?: string | undefined, tebexCheckoutAuthBasic?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const payment = z.object({transaction_id: z.string().optional(), status: z.object({id: z.number().int().optional(), description: z.string().optional()}).optional(), payment_sequence: z.string().optional(), created_at: z.string().optional(), price: z.object({amount: z.number().optional(), currency: z.string().optional()}).optional(), fees: z.object({tax: z.object({amount: z.number().optional(), currency: z.string().optional()}).optional(), gateway: z.object({amount: z.number().optional(), currency: z.string().optional()}).optional()}).optional(), customer: z.object({first_name: z.string().optional(), last_name: z.string().optional(), email: z.string().optional(), ip: z.string().optional(), username: z.string().nullable().optional(), marketing_consent: z.boolean().optional(), country: z.string().optional(), postal_code: z.string().nullable().optional()}).optional(), products: z.array(z.object({id: z.string().nullable().optional(), name: z.string().optional(), quantity: z.number().int().optional(), base_price: z.object({amount: z.number().optional(), currency: z.string().optional()}).optional(), paid_price: z.object({amount: z.number().optional(), currency: z.string().optional()}).optional(), variables: z.array(z.string()).optional(), expires_at: z.string().nullable().optional(), custom: z.object({}).optional(), username: z.string().nullable().optional()})).optional(), coupons: z.array(z.object({})).optional(), gift_cards: z.array(z.object({})).optional(), recurring_payment_reference: z.string().nullable().optional(), custom: z.object({}).optional()}).nullable();

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
};

/**
 * Fetch a payment by its transaction ID
 * 
 * GET /payments/{txnId}?type=txn_id
 */
export const getApiPaymentsTxnIdTypeTxnId = async (args: GetApiPaymentsTxnIdTypeTxnIdArgs, options?: GetApiPaymentsTxnIdTypeTxnIdOptions) => {
const {baseUrl = "https://checkout.tebex.io/api", fetch: fetchFn = fetch, tebexCheckoutAuthBasic} = options ?? {}

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

if (tebexCheckoutAuthBasic !== undefined) headers.set('authorization', `Basic ${btoa(`${tebexCheckoutAuthBasic.username}:${tebexCheckoutAuthBasic.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/payments/${encodeURIComponent(String(args.txnId))}?type=txn_id${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

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