import {z} from 'zod'

export type GetApiCheckoutSessionsIdArgs = {id: string};

export type GetApiCheckoutSessionsIdOptions = {baseUrl?: string | undefined, publicApiKey?: string | undefined, privateSecretKey?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiCheckoutSessionsIdResponse = z.object({id: z.string().optional(), merchant_order_id: z.string().optional(), country: z.string().optional(), payment_description: z.string().optional(), customer_id: z.string().optional(), callback_url: z.string().optional(), amount: z.object({currency: z.string().optional(), value: z.number().optional()}).optional(), created_at: z.string().optional(), metadata: z.array(z.object({key: z.string().optional(), value: z.string().optional()})).nullable().optional(), workflow: z.string().optional(), installments: z.object({plan_id: z.string().nullable().optional(), plan: z.array(z.object({installment: z.number().int().optional(), rate: z.number().optional()})).nullable().optional()}).optional(), used: z.boolean().optional(), checkout_id: z.string().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
};

/**
 * Retrieve Checkout Session
 * 
 * GET /checkout/sessions/{id}
 */
export const getApiCheckoutSessionsId = async (args: GetApiCheckoutSessionsIdArgs, options?: GetApiCheckoutSessionsIdOptions) => {
const {baseUrl = "https://api-sandbox.y.uno/v1", fetch: fetchFn = fetch, publicApiKey, privateSecretKey} = options ?? {}

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

if (publicApiKey !== undefined) headers.set("PUBLIC-API-KEY", publicApiKey)
if (privateSecretKey !== undefined) headers.set("PRIVATE-SECRET-KEY", privateSecretKey)

const url = `${baseUrl.replace(/\/+$/, '')}/checkout/sessions/${encodeURIComponent(String(args.id))}${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(getApiCheckoutSessionsIdResponse, await res.json())
};