import {z} from 'zod'

export type GetApiProductsArgs = {limit?: number | undefined, cursor?: string | undefined};

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

export const productId = z.string();

export const productName = z.string().min(1).max(100);

export const productDescription = z.string().max(1000);

export const productImages = z.array(z.string());

export const productSlug = z.string().max(100);

export const productShippable = z.boolean();

export const productUnitLabel = z.string().max(12);

export const productDescriptor = z.string().max(25);

export const productDefaultPriceId = z.string();

export const productActive = z.boolean();

export const metadata = z.object({});

export const createdAt = z.number().int();

export const updatedAt = z.number().int();

export const product = z.object({id: productId, name: productName, description: productDescription.optional(), images: productImages.optional(), slug: productSlug.optional(), shippable: productShippable.optional(), unitLabel: productUnitLabel.optional(), descriptor: productDescriptor.optional(), defaultPriceId: productDefaultPriceId.optional(), active: productActive, metadata: metadata.optional(), createdAt: createdAt, updatedAt: updatedAt.optional()});

export const nextCursor = z.string();

export const productList = z.object({items: z.array(product), nextCursor: nextCursor.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
};

/**
 * List Products
 * 
 * GET /products
 */
export const getApiProducts = async (args: GetApiProductsArgs, options?: GetApiProductsOptions) => {
const {baseUrl = "https://api.monei.com/v1", fetch: fetchFn = fetch, APIKey} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (APIKey !== undefined) headers.set("Authorization", APIKey)

const url = `${baseUrl.replace(/\/+$/, '')}/products${query.size > 0 ? `?${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(productList, await res.json())
};