import {z} from 'zod'

export type ParameterLimit = number;

export type ParameterPage = number;

export type ParameterOrder = 'created_at' | '-created_at' | 'updated_at' | '-updated_at' | 'type' | '-type' | 'code' | '-code' | 'campaign' | '-campaign' | 'category' | '-category';

export type ParameterDate = string;

export type GetApiV1ProductCollectionsProductCollectionIdProductsArgs = {limit?: ParameterLimit | undefined, page?: ParameterPage | undefined, order?: ParameterOrder | undefined, starting_after?: ParameterDate | undefined};

export type GetApiV1ProductCollectionsProductCollectionIdProductsOptions = {baseUrl?: string | undefined, XAppId?: string | undefined, XAppToken?: string | undefined, fetch?: typeof fetch | undefined};

export const productWithoutSkus = z.object({id: z.string(), source_id: z.string().nullable(), name: z.string().nullable(), price: z.number().int().nullable(), attributes: z.array(z.string()), metadata: z.object({}), image_url: z.string().nullable().optional(), created_at: z.string().optional(), updated_at: z.string().nullable().optional(), object: z.literal("product")});

export const skuWithProduct = z.object({id: z.string(), source_id: z.string().nullable(), product_id: z.string(), sku: z.string().nullable(), price: z.number().int().nullable(), currency: z.string().nullable().optional(), attributes: z.object({}), image_url: z.string().nullable(), metadata: z.object({}), created_at: z.string(), updated_at: z.string().nullable(), object: z.literal("sku"), product: productWithoutSkus.optional()});

export const productCollectionsProductsListResponseBody = z.object({object: z.string(), data_ref: z.string(), data: z.array(z.union([productWithoutSkus, skuWithProduct])), total: z.number().int()});

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 in Collection
 * 
 * GET /v1/product-collections/{productCollectionId}/products
 * 
 * Also accepts auth: X-Voucherify-OAuth
 */
export const getApiV1ProductCollectionsProductCollectionIdProducts = async (args: GetApiV1ProductCollectionsProductCollectionIdProductsArgs, options?: GetApiV1ProductCollectionsProductCollectionIdProductsOptions) => {
const {baseUrl = "https://api.voucherify.io", fetch: fetchFn = fetch, XAppId, XAppToken} = 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.page != null) query.append("page", String(args.page))
if (args.order != null) query.append("order", String(args.order))
if (args.starting_after != null) query.append("starting_after", String(args.starting_after))
if (XAppId !== undefined) headers.set("X-App-Id", XAppId)
if (XAppToken !== undefined) headers.set("X-App-Token", XAppToken)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/product-collections/${encodeURIComponent(String(args.productCollectionId))}/products${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(productCollectionsProductsListResponseBody, await res.json())
};