import {z} from 'zod'

export type GetApiV2CatalogSearchArgs = {sort?: ('newest' | 'oldest') | undefined, page?: number | undefined, per_page?: number | undefined, query?: string | undefined, collection_id?: Array<string> | undefined, asset_type?: (Array<'image' | 'video' | 'audio' | 'elements' | 'editorial-image' | 'editorial-video'>) | undefined};

export type GetApiV2CatalogSearchOptions = {baseUrl?: string | undefined, customerAccessCode?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiV2CatalogSearchResponse = z.object({page: z.number(), per_page: z.number(), total_count: z.number(), data: z.array(z.object({id: z.string(), asset: z.object({id: z.string().optional(), type: z.enum(["image", "video", "audio", "editorial-image", "editorial-video"]), name: z.string().optional()}), created_time: z.string(), collection_ids: z.array(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
};

/**
 * Search catalogs for assets
 * 
 * GET /v2/catalog/search
 */
export const getApiV2CatalogSearch = async (args: GetApiV2CatalogSearchArgs, options?: GetApiV2CatalogSearchOptions) => {
const {baseUrl = "https://api.shutterstock.com", fetch: fetchFn = fetch, customerAccessCode} = options ?? {}

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

if (args.sort != null) query.append("sort", String(args.sort))
if (args.page != null) query.append("page", String(args.page))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (args.query != null) query.append("query", String(args.query))
for (const item of args.collection_id ?? []) query.append("collection_id", String(item))
for (const item of args.asset_type ?? []) query.append("asset_type", String(item))
if (customerAccessCode !== undefined) headers.set('authorization', `Bearer ${customerAccessCode}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/catalog/search${query.size > 0 ? `?${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(getApiV2CatalogSearchResponse, await res.json())
};