import {z} from 'zod'

export type GetApiV1TiktokAdsSearchArgs = {query?: string | undefined, advertiser_id?: string | undefined, region?: string | undefined, days?: number | undefined, sort?: string | undefined, offset?: number | undefined, search_id?: string | undefined, count?: number | undefined};

export type GetApiV1TiktokAdsSearchOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const tikTokAdVideo = z.object({video_url: z.string().optional(), cover_img: z.string().optional()});

export const tikTokAd = z.object({id: z.string(), name: z.string().optional(), audit_status: z.string().optional(), type: z.string().optional(), first_shown_date: z.number().int().optional(), last_shown_date: z.number().int().optional(), videos: z.array(tikTokAdVideo).optional()});

export const adLibraryPage = z.object({has_more: z.boolean().optional(), total: z.number().int().optional(), search_id: z.string().optional(), offset: z.number().int().optional()});

export const adLibrarySearchResponse = z.object({ads: z.array(tikTokAd).optional(), pagination: adLibraryPage, region: z.string()});

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 the TikTok Ad Library
 * 
 * GET /v1/tiktok/ads/search
 */
export const getApiV1TiktokAdsSearch = async (args: GetApiV1TiktokAdsSearchArgs, options?: GetApiV1TiktokAdsSearchOptions) => {
const {baseUrl = "https://scrapebadger.com", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.query != null) query.append("query", String(args.query))
if (args.advertiser_id != null) query.append("advertiser_id", String(args.advertiser_id))
if (args.region != null) query.append("region", String(args.region))
if (args.days != null) query.append("days", String(args.days))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.search_id != null) query.append("search_id", String(args.search_id))
if (args.count != null) query.append("count", String(args.count))
if (apiKey !== undefined) headers.set("x-api-key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/tiktok/ads/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(adLibrarySearchResponse, await res.json())
};