import {z} from 'zod'

export type WatchCreativesRequest = Record<string, never>;

export type CreateApiV1BiddersBiddersIdCreativesWatchArgs = {biddersId: string, body: WatchCreativesRequest};

export type CreateApiV1BiddersBiddersIdCreativesWatchOptions = {baseUrl?: string | undefined, Oauth2?: string | undefined, Oauth2c?: string | undefined, fetch?: typeof fetch | undefined};

export const watchCreativesResponse = z.object({subscription: z.string().optional(), topic: 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
};

/**
 * Watches all creatives pertaining to a bidder. It is sufficient to invoke this endpoint once per bidder. A Pub/Sub topic will be created and notifications will be pushed to the topic when any of the bidder's creatives change status. All of the bidder's service accounts will have access to read from the topic. Subsequent invocations of this method will return the existing Pub/Sub configuration.
 * 
 * POST /v1/bidders/{biddersId}/creatives:watch
 */
export const createApiV1BiddersBiddersIdCreativesWatch = async (args: CreateApiV1BiddersBiddersIdCreativesWatchArgs, options?: CreateApiV1BiddersBiddersIdCreativesWatchOptions) => {
const {baseUrl = "https://realtimebidding.googleapis.com", fetch: fetchFn = fetch, Oauth2, Oauth2c} = options ?? {}

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

if (Oauth2 !== undefined) headers.set('authorization', `Bearer ${Oauth2}`)
if (Oauth2c !== undefined) headers.set('authorization', `Bearer ${Oauth2c}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/bidders/${encodeURIComponent(String(args.biddersId))}/creatives:watch${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(watchCreativesResponse, await res.json())
};